Introduction

This page provides a comprehensive analysis of the known insider trading history of James R. Scapa Declaration of Trust. Insiders are officers, directors, or significant investors in a company. It is illegal for insiders to make trades in their companies based on specific, non-public information. This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4. Despite these restrictions, academic research suggests that insiders - in general - tend to outperform the market in their own companies.

Average Trade Profitability

The average trade profitability is the average return of all the open market purchases made by the insider in the last three years. To calculate this, we examine every open-market, unplanned purchase made by the insider, excluding all trades that were marked as part of a 10b5-1 trading plan. We then calculate the average performance of those trades over 3, 6, and 12 months, averaging each of those durations to generate a final performance metric for each trade. Finally, we average all of the performance metrics to calculate a performance metric for the insider. This list only includes insiders that have made at least three trades in the last two years.

If this insiders trade profitability is "N/A", then the insider either has not made any open-market purchases in the last three years, or the trades they’ve made are too recent to calculate a reliable performance metric.

Update Frequency: Daily

See the list of most profitable insider traders.

Companies with Reported Insider Positions

The SEC filings indicate James R. Scapa Declaration of Trust has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:ALTR / Altair Engineering Inc. 10% Owner 0
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by James R. Scapa Declaration of Trust. Non-planned trade are trades that were not made as part of a 10b5-1 trading plan. The stock performance is charted as cumulative percent change in share price. For example, if an insider trade was made on January 1, 2019, the chart will show the daily percent change of the security to the present day. If the share price were to go from $10 to $15 during this time, the cumulative percent change in share price would be 50%. A change in price from $10 to $20 would be 100%, and a change in price of $10 to $5 would be -50%.

Ultimately, we are trying to determine how closely the insider’s trades correlate to excess returns (positive or negative) in the share price in order to see if the insider is timing their trades to profit from insider information. Consider the situation where an insider was doing this. In this situation, we would expect either (a) positive returns after purchases, or (b) negative returns after sales. In the case of (a), the PURCHASE chart would show a series of upwardly sloping curves, indicating positive returns after each purchase transaction. In the case of (b), the SALE chart would show a series of downward sloping curves, indicating negative returns after each sale transaction.

However, this alone is not enough to draw conclusions. If, for example, the share price of the company was in a non-cyclical climb over many years, then we would expect all the post-purchase plots to be upwardly sloping. Likewise, non-cyclical declines over many years would result in downward sloping post-trade plots. Neither of these charts would suggest insider trading activity.

The strongest indicator would be a situation where the share price was extremely cyclical, and there were both positive signals in the PURCHASE chart and negative plots on the SALE chart. This situation would be highly suggestive of an insider that was timing trades to their financial advantage.

Insider Trading History

This table shows the complete list of insider trades made by James R. Scapa Declaration of Trust as disclosed to the Securities Exchange Commission (SEC).

File Date Tran Date Form Ticker Security Code 10b5-1 Shares Remaining Shares Percent
Change
Share
Price
Tran
Value
Remaining
Value
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,500 0 -100.00 105.69 -686,988
2024-12-02 2024-11-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -295 0 -100.00 103.84 -30,633
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,522 295 -89.53 103.19 -260,251 30,442
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,683 2,817 -56.66 102.08 -375,963 287,561
2024-10-29 2024-10-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -928 0 -100.00 95.55 -88,668
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,572 928 -85.72 95.03 -529,501 88,187
2024-10-01 2024-09-30 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,490 0 -100.00 89.53 -133,404
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,010 1,490 -77.08 88.89 -445,335 132,445
2024-08-29 2024-08-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,483 0 -100.00 88.60 -131,389
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,017 1,483 -77.18 87.96 -441,318 130,452
2024-07-30 2024-07-29 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -900 0 -100.00 99.57 -89,609
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,761 900 -66.18 98.67 -173,765 88,806
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,839 2,661 -59.06 97.77 -375,333 260,162
2024-07-01 2024-06-28 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 94.18 -9,418
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,950 100 -98.02 93.28 -461,716 9,328
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,450 5,050 -22.31 92.71 -134,435 468,203
2024-06-11 2024-06-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,500 6,500
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,500 0 -100.00 80.84 -363,778
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 4,500 -10.00 79.87 -39,934 359,405
2024-03-19 2024-03-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,789 0 -100.00 91.35 -254,768
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,211 2,789 -44.22 90.72 -200,575 253,010
2024-02-20 2024-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,904 0 -100.00 83.91 -243,676
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,096 2,904 -41.92 83.48 -174,980 242,434
2024-01-18 2024-01-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -67 0 -100.00 74.58 -4,997
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,933 67 -98.66 74.11 -365,578 4,965
2023-12-19 2023-12-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -800 0 -100.00 73.60 -58,882
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,253 800 -80.26 72.48 -235,792 57,988
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -947 4,053 -18.94 71.74 -67,935 290,750
2023-11-17 2023-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -350 0 -100.00 66.05 -23,119
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,348 350 -90.54 65.44 -219,103 22,905
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,302 3,698 -26.04 64.48 -83,948 238,432
2023-10-17 2023-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 65.29 -326,450
2023-09-19 2023-09-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 62.46 -312,325
2023-08-17 2023-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,601 0 -100.00 75.14 -195,444
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,399 2,601 -47.98 74.66 -179,114 194,196
2023-07-18 2023-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,400 0 -100.00 75.63 -105,883
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,600 1,400 -72.00 75.00 -269,993 104,997
2023-06-20 2023-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,000 0 -100.00 67.94 -339,715
2023-05-17 2023-05-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -291 0 -100.00 71.08 -20,685
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,709 291 -94.18 70.28 -330,963 20,452
2023-04-18 2023-04-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 5,000 5,000
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,676 0 -100.00 66.49 -576,859
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,324 8,676 -56.62 65.91 -746,376 571,844
2023-03-16 2023-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,396 0 -100.00 58.15 -197,464
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,604 3,396 -83.02 57.60 -956,440 195,620
2023-02-16 2023-02-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -20,000 0 -100.00 49.90 -998,100
2023-01-19 2023-01-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -289 0 -100.00 49.05 -14,175
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -19,711 289 -98.56 48.44 -954,840 14,000
2023-01-10 2023-01-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,000 20,000
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -23,669 10,426,610 -0.23
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -484 0 -100.00 72.73 -35,203
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,112 484 -94.96 72.32 -658,989 35,003
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,696 9,596 -44.51 71.13 -547,409 682,554
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,377 17,292 -26.94 70.10 -447,047 1,212,221
2021-12-17 2021-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 23,669 23,669
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,867 10,450,279 -0.09
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,867 0 -100.00 78.27 -772,300
2021-11-19 2021-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,867 9,867
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,099 10,460,146 -0.08
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,294 0 -100.00 79.33 -340,652
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,805 4,294 -46.98 78.86 -300,074 338,638
2021-11-17 2021-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,099 8,099
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,751 10,468,245 -0.07
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -135 0 -100.00 78.36 -10,579
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,616 135 -98.26 77.75 -592,114 10,496
2021-11-17 2021-11-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,751 7,751
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,955 10,475,996 -0.11
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,195 0 -100.00 74.27 -608,675
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,760 8,195 -31.45 73.76 -277,353 604,496
2021-10-21 2021-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,955 11,955
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,597 10,487,951 -0.14
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,097 0 -100.00 73.69 -1,038,780
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 14,097 -3.43 72.85 -36,424 1,026,938
2021-10-19 2021-10-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,597 14,597
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,448 10,502,548 -0.13
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,826 0 -100.00 73.91 -504,503
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,622 6,826 -49.24 73.01 -483,459 498,353
2021-10-19 2021-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,448 13,448
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -22,151 10,515,996 -0.21
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 76.11 -7,611
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,925 100 -97.52 75.16 -295,023 7,516
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,126 4,025 -81.83 74.55 -1,351,257 300,056
2021-09-20 2021-09-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 22,151 22,151
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,031 10,538,147 -0.09
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,358 0 -100.00 75.55 -102,596
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,673 1,358 -84.96 75.02 -575,613 101,874
2021-09-17 2021-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,031 9,031
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -8,818 10,547,178 -0.08
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,868 0 -100.00 75.60 -368,045
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,950 4,868 -44.79 75.14 -296,811 365,791
2021-09-17 2021-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 8,818 8,818
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,907 10,555,996 -0.13
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 71.41 -14,282
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,707 200 -98.56 70.92 -972,100 14,184
2021-08-19 2021-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,907 13,907
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,279 10,569,903 -0.07
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,279 0 -100.00 71.10 -517,559
2021-08-18 2021-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,279 7,279
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,814 10,577,182 -0.18
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -15,661 0 -100.00 72.24 -1,131,398
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,153 15,661 -16.76 71.52 -225,512 1,120,122
2021-08-18 2021-08-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,814 18,814
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,180 10,595,996 -0.11
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,266 0 -100.00 65.88 -83,404
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,203 1,266 -85.05 65.32 -470,478 82,691
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,411 8,469 -14.28 63.99 -90,288 541,923
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,300 9,880 -11.63 63.34 -82,343 625,809
2021-07-20 2021-07-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,180 11,180
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,994 10,607,176 -0.14
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,773 0 -100.00 66.34 -316,631
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,844 4,773 -37.34 65.47 -186,188 312,474
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,377 7,617 -49.20 64.39 -474,998 490,451
2021-07-19 2021-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,994 14,994
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,826 10,622,170 -0.13
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -126 0 -100.00 67.80 -8,542
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,931 126 -95.88 66.66 -195,372 8,399
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,769 3,057 -77.89 65.83 -708,966 201,255
2021-07-19 2021-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,826 13,826
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,940 10,635,996 -0.09
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 63.42 -12,685
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,740 200 -97.99 62.98 -613,425 12,596
2021-06-21 2021-06-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,940 9,940
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,231 10,645,936 -0.17
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 64.64 -12,928
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,693 200 -97.47 63.82 -490,998 12,765
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,338 7,893 -56.71 63.13 -652,679 498,317
2021-06-17 2021-06-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,231 18,231
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,829 10,664,167 -0.11
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -196 0 -100.00 66.54 -13,042
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,418 196 -94.58 65.60 -224,224 12,858
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,215 3,614 -69.45 64.66 -531,207 233,692
2021-06-17 2021-06-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,829 11,829
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,980 10,675,996 -0.12
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -600 0 -100.00 62.38 -37,430
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,156 600 -87.38 61.97 -257,556 37,183
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,224 4,756 -63.36 60.82 -500,184 289,260
2021-05-20 2021-05-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,980 12,980
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -17,515 10,688,976 -0.16
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,681 0 -100.00 65.61 -241,503
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,802 3,681 -64.89 64.71 -440,144 238,190
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,032 10,483 -40.15 63.65 -447,580 667,232
2021-05-19 2021-05-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 17,515 17,515
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,505 10,706,491 -0.09
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -200 0 -100.00 65.77 -13,154
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,305 200 -97.90 65.08 -605,541 13,015
2021-05-19 2021-05-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,505 9,505
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -40,000 10,715,996 -0.37
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,300 0 -100.00 66.18 -86,038
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,541 1,300 -85.30 65.20 -491,681 84,761
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,162 8,841 -36.86 64.30 -331,896 568,441
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,900 14,003 -29.64 63.31 -373,529 886,530
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,532 19,903 -21.75 62.35 -344,920 1,240,952
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,565 25,435 -36.41 61.42 -894,553 1,562,167
2021-04-16 2021-04-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 40,000 40,000
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,998 10,755,996 -0.07
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,583 0 -100.00 60.54 -156,370
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,415 2,583 -63.09 60.08 -265,262 155,192
2021-03-18 2021-03-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,998 6,998
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,086 10,762,994 -0.18
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,955 0 -100.00 61.71 -305,768
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -10,806 4,955 -68.56 60.90 -658,075 301,755
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,325 15,761 -17.42 60.20 -200,152 948,749
2021-03-17 2021-03-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,086 19,086
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,916 10,782,080 -0.13
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -7,521 0 -100.00 61.85 -465,151
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,895 7,521 -43.94 60.70 -357,850 456,555
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 13,416 -3.59 59.82 -29,908 802,505
2021-03-17 2021-03-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,916 13,916
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -3,755 10,795,996 -0.03
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -764 0 -100.00 61.51 -46,997
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,991 764 -79.65 61.01 -182,487 46,613
2021-02-19 2021-02-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 3,755 3,755
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,062 10,799,751 -0.17
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -944 0 -100.00 64.08 -60,492
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,677 944 -73.93 63.30 -169,441 59,750
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,441 3,621 -79.95 62.28 -899,371 225,512
2021-02-18 2021-02-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,062 18,062
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,183 10,817,813 -0.17
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,768 0 -100.00 67.87 -119,989
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,094 1,768 -74.23 67.11 -341,869 118,654
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,378 6,862 -38.95 66.18 -289,727 454,113
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -6,943 11,240 -38.18 65.05 -451,614 731,117
2021-02-18 2021-02-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,183 18,183
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -7,430 10,835,996 -0.07
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,595 0 -100.00 62.06 -285,161
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,835 4,595 -38.16 61.63 -174,721 283,190
2021-01-22 2021-01-20 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 7,430 7,430
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -17,737 10,843,426 -0.16
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -283 0 -100.00 61.27 -17,339
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,454 283 -98.40 60.66 -1,058,690 17,166
2021-01-20 2021-01-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 17,737 17,737
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,833 10,861,163 -0.14
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,361 0 -100.00 61.06 -205,236
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,472 3,361 -77.34 60.12 -689,731 202,073
2021-01-20 2021-01-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,833 14,833
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -3,906 10,875,996 -0.04
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,000 0 -100.00 58.33 -58,332
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,906 1,000 -74.40 57.67 -167,583 57,668
2020-12-21 2020-12-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 3,906 3,906
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,082 10,879,902 -0.17
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -400 0 -100.00 57.57 -23,028
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,682 400 -97.79 57.00 -1,007,945 22,802
2020-12-17 2020-12-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,082 18,082
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,012 10,897,984 -0.17
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,314 0 -100.00 57.07 -303,281
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,698 5,314 -70.50 56.73 -720,370 301,469
2020-12-17 2020-12-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,012 18,012
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -20,994 10,915,996 -0.19
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -8,631 0 -100.00 49.50 -427,260
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,363 8,631 -58.89 49.10 -606,999 423,765
2020-11-18 2020-11-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,994 20,994
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,006 10,936,990 -0.17
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,898 0 -100.00 49.44 -192,725
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -15,108 3,898 -79.49 48.98 -739,945 190,912
2020-11-18 2020-11-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,006 19,006
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -9,126 10,955,996 -0.08
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,126 0 -100.00 46.29 -422,452
2020-10-21 2020-10-19 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 9,126 9,126
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -11,586 10,965,122 -0.11
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,586 0 -100.00 46.28 -536,212
2020-10-19 2020-10-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 11,586 11,586
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -19,288 10,976,708 -0.18
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -874 0 -100.00 46.18 -40,360
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,414 874 -95.47 45.75 -842,404 39,984
2020-10-19 2020-10-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 19,288 19,288
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -26,131 10,995,996 -0.24
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,287 0 -100.00 40.44 -577,795
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -11,844 14,287 -45.33 41.30 -489,134 590,025
2020-09-17 2020-09-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 26,131 26,131
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -13,869 11,022,127 -0.13
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,869 0 -100.00 39.66 -549,975
2020-09-17 2020-09-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 13,869 13,869
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -23,674 11,035,996 -0.21
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -9,826 0 -100.00 41.52 -407,976
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,848 9,826 -58.49 40.91 -566,508 401,972
2020-08-19 2020-08-18 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 23,674 23,674
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -16,326 11,059,670 -0.15
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -101 0 -100.00 40.84 -4,124
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,225 101 -99.38 40.43 -656,025 4,084
2020-08-19 2020-08-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 16,326 16,326
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,576 11,075,996 -0.06
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,358 0 -100.00 38.20 -90,087
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,218 2,358 -64.14 37.62 -158,685 88,710
2020-07-20 2020-07-17 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,576 6,576
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,821 11,082,572 -0.13
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -14,821 0 -100.00 37.21 -551,504
2020-07-17 2020-07-16 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,821 14,821
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -18,603 11,097,393 -0.17
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -100 0 -100.00 38.68 -3,868
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -18,503 100 -99.46 38.00 -703,058 3,800
2020-07-17 2020-07-15 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 18,603 18,603
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -30,534 11,115,996 -0.27
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -30,534 0 -100.00 32.49 -992,172
2019-10-07 2019-10-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 30,534 30,534
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -20,131 11,175,865 -0.18
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,500 0 -100.00 34.73 -86,832
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -17,631 2,500 -87.58 33.90 -597,691 84,750
2019-10-03 2019-10-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 20,131 20,131
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -29,335 11,146,530 -0.26
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -29,335 0 -100.00 32.87 -964,329
2019-10-03 2019-10-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 29,335 29,335
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -4,040 11,195,996 -0.04
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -4,040 0 -100.00 33.83 -136,673
2019-09-05 2019-09-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 4,040 4,040
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -75,960 11,200,036 -0.67
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -3,100 0 -100.00 34.12 -105,772
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -72,860 3,100 -95.92 33.47 -2,438,624 103,757
2019-09-05 2019-09-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 75,960 75,960
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -64,702 11,275,996 -0.57
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -300 0 -100.00 41.01 -12,303
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -64,402 300 -99.54 40.39 -2,601,197 12,117
2019-08-05 2019-08-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 64,702 64,702
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,298 11,340,698 -0.13
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,517 0 -100.00 42.30 -106,469
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,781 2,517 -83.55 41.40 -529,133 104,204
2019-08-05 2019-08-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,298 15,298
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -25,516 11,355,996 -0.22
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -25,516 0 -100.00 40.42 -1,031,357
2019-07-05 2019-07-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 25,516 25,516
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -54,484 11,381,512 -0.48
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -500 0 -100.00 41.33 -20,665
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -53,984 500 -99.08 40.93 -2,209,565 20,465
2019-07-03 2019-07-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 54,484 54,484
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -6,300 11,435,996 -0.06
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,284 0 -100.00 37.93 -48,697
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -5,016 1,284 -79.62 37.52 -188,215 48,180
2019-06-06 2019-06-04 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 6,300 6,300
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -73,700 11,442,296 -0.64
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -1,500 0 -100.00 37.78 -56,673
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -72,200 1,500 -97.96 36.84 -2,659,848 55,260
2019-06-05 2019-06-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 73,700 73,700
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -77,121 11,515,996 -0.67
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -77,121 0 -100.00 37.04 -2,856,562
2019-05-07 2019-05-03 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 77,121 77,121
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -12,685 11,593,117 -0.11
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,685 0 -100.00 36.89 -467,950
2019-05-06 2019-05-02 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 12,685 12,685
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -15,200 11,605,802 -0.13
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -2,875 0 -100.00 38.94 -111,967
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -12,325 2,875 -81.09 38.14 -470,112 109,661
2019-05-03 2019-05-01 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 15,200 15,200
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -24,328 11,621,002 -0.21
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -24,328 0 -100.00 36.90 -897,776
2019-04-12 2019-04-10 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 24,328 24,328
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -16,152 11,645,330 -0.14
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -16,152 0 -100.00 36.79 -594,184
2019-04-10 2019-04-09 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 16,152 16,152
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -14,514 11,661,482 -0.12
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -900 0 -100.00 37.50 -33,752
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale X -13,614 900 -93.80 37.12 -505,284 33,404
2019-04-09 2019-04-08 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 14,514 14,514
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class B Common Stock
C - Conversion -975,420 11,675,996 -7.71
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
S - Sale -975,420 0 -100.00 33.42 -32,603,414
2018-06-11 2018-06-11 4 ALTR Altair Engineering Inc.
Class A Common Stock
C - Conversion 975,420 975,420
P
Open market or private purchase of non-derivative or derivative security
S
Open market or private sale of non-derivative or derivative security
A
Grant, award, or other acquisition of securities from the company (such as an option)
C
Conversion of derivative
D
Sale or transfer of securities back to the company
F
Payment of exercise price or tax liability using portion of securities received from the company
G
Gift of securities by or to the insider
K
Equity swaps and similar hedging transactions
M
Exercise or conversion of derivative security received from the company (such as an option)
V
A transaction voluntarily reported on Form 4
J
Other (accompanied by a footnote describing the transaction)