Introduction

This page provides a comprehensive analysis of the known insider trading history of Michael Ditullio. 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 Michael Ditullio has reported holdings or trades in the following companies:

Security Title Latest Reported Holdings
US:PTC / PTC Inc. President and COO 53,148
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Michael Ditullio. 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 Michael Ditullio 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
2024-05-28 2024-05-24 4 PTC PTC INC.
Common Stock
S - Sale -6,315 53,148 -10.62 183.15 -1,156,569 9,733,860
2024-05-28 2024-05-24 4 PTC PTC INC.
Common Stock
S - Sale -277 59,463 -0.46 183.32 -50,778 10,900,460
2024-05-16 2024-05-15 4 PTC PTC INC.
Common Stock
F - Taxes -420 59,740 -0.70 183.85 -77,217 10,983,199
2024-05-16 2024-05-15 4 PTC PTC INC.
Common Stock
M - Exercise 1,430 60,160 2.43
2024-02-16 2024-02-15 4 PTC PTC INC.
Common Stock
F - Taxes -400 58,730 -0.68 181.99 -72,796 10,688,273
2024-02-16 2024-02-15 4 PTC PTC INC.
Common Stock
M - Exercise 1,281 59,130 2.21
2023-12-04 2023-12-01 4 PTC PTC INC.
Common Stock
S - Sale -6,978 57,764 -10.78 159.43 -1,112,503 9,209,315
2023-11-28 2023-11-27 4 PTC PTC INC.
Common Stock
F - Taxes -2,263 64,742 -3.38 154.75 -350,199 10,018,824
2023-11-28 2023-11-27 4 PTC PTC INC.
Common Stock
A - Award 4,680 67,005 7.51
2023-11-17 2023-11-15 4 PTC PTC INC.
Common Stock
F - Taxes -13,879 72,938 -15.99 154.68 -2,146,804 11,282,050
2023-11-17 2023-11-15 4 PTC PTC INC.
Common Stock
M - Exercise 29,053 86,817 50.30
2023-11-17 2023-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -2,407 62,325 -3.72 154.57 -372,040 9,633,326
2023-11-17 2023-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -7,778 64,732 -10.73 153.90 -1,196,995 9,961,931
2023-11-17 2023-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -428 72,510 -0.59 152.91 -65,445 11,087,359
2023-09-18 2023-09-15 4 PTC PTC INC.
Common Stock
S - Sale X -3,000 57,764 -4.94 140.71 -422,130 8,127,972
2023-06-16 2023-06-16 4 PTC PTC INC.
Common Stock
S - Sale X -396 60,674 -0.65 144.56 -57,246 8,771,033
2023-06-16 2023-06-16 4 PTC PTC INC.
Common Stock
S - Sale X -2,604 61,070 -4.09 143.31 -373,171 8,751,740
2023-05-22 2023-05-22 4 PTC PTC INC.
Common Stock
S - Sale X -2,000 63,674 -3.05 135.00 -270,000 8,595,990
2023-05-16 2023-05-15 4 PTC PTC INC.
Common Stock
F - Taxes -1,839 65,674 -2.72 130.78 -240,504 8,588,846
2023-05-16 2023-05-15 4 PTC PTC INC.
Common Stock
M - Exercise 1,430 67,513 2.16
2023-05-16 2023-05-15 4 PTC PTC INC.
Common Stock
M - Exercise 4,833 66,083 7.89
2023-05-01 2023-04-28 4 PTC PTC INC.
Common Stock
S - Sale X -2,000 61,250 -3.16 122.79 -245,580 7,520,888
2023-02-21 2023-02-17 4 PTC PTC INC.
Common Stock
S - Sale X -2,000 63,250 -3.07 130.63 -261,260 8,262,348
2022-11-22 2022-11-21 4 PTC PTC INC.
Common Stock
S - Sale X -15,085 77,040 -16.37 123.55 -1,863,789 9,518,485
2022-11-17 2022-11-15 4 PTC PTC INC.
Common Stock
F - Taxes -18,904 92,125 -17.03 132.01 -2,495,517 12,161,421
2022-11-17 2022-11-15 4 PTC PTC INC.
Common Stock
A - Award 4,420 111,029 4.15
2022-11-17 2022-11-15 4 PTC PTC INC.
Common Stock
M - Exercise 39,384 106,609 58.59
2022-05-16 2022-05-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -4,833 4,833 -50.00
2022-05-16 2022-05-15 4 PTC PTC INC.
Common Stock
F - Taxes -1,416 67,118 -2.07 109.55 -155,123 7,352,777
2022-05-16 2022-05-15 4 PTC PTC INC.
Common Stock
M - Exercise 4,833 68,534 7.59
2021-11-18 2021-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 11,492 11,492
2021-11-18 2021-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 5,746 5,746
2021-11-18 2021-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 5,746 5,746
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -3,395 5,280 -39.14
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -5,282 5,280 -50.01
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -5,281 10,561 -33.34
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -5,549 5,549 -50.00
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -4,419 0 -100.00
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
A - Award 4,419 4,419
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -4,031 0 -100.00
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
A - Award 4,031 4,031
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -4,892 0 -100.00
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -9,784 0 -100.00
2021-11-17 2021-11-15 4 PTC PTC INC.
Restricted Stock Units
A - Award 9,784 9,784
2021-11-17 2021-11-15 4 PTC PTC INC.
Common Stock
F - Taxes -20,582 63,609 -24.45 120.05 -2,470,869 7,636,260
2021-11-17 2021-11-15 4 PTC PTC INC.
Common Stock
A - Award 3,937 84,191 4.91
2021-11-17 2021-11-15 4 PTC PTC INC.
Common Stock
M - Exercise 42,633 80,254 113.32
2021-05-17 2021-05-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -4,833 9,666 -33.33
2021-05-17 2021-05-15 4 PTC PTC INC.
Common Stock
F - Taxes -1,419 37,530 -3.64 129.01 -183,065 4,841,745
2021-05-17 2021-05-15 4 PTC PTC INC.
Common Stock
M - Exercise 4,833 38,949 14.17
2021-04-16 2021-04-15 4 PTC PTC INC.
Common Stock
S - Sale X -2,260 34,116 -6.21 148.36 -335,296 5,061,484
2021-04-16 2021-04-15 4 PTC PTC INC.
Common Stock
S - Sale X -3,112 36,376 -7.88 147.44 -458,830 5,363,241
2021-03-16 2021-03-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -2,302 0 -100.00
2021-03-16 2021-03-15 4 PTC PTC INC.
Common Stock
F - Taxes -698 39,488 -1.74 137.09 -95,689 5,413,410
2021-03-16 2021-03-15 4 PTC PTC INC.
Common Stock
M - Exercise 2,302 40,186 6.08
2021-01-19 2021-01-15 4 PTC PTC INC.
Common Stock
S - Sale X -300 37,738 -0.79 124.82 -37,444 4,710,268
2021-01-19 2021-01-15 4 PTC PTC INC.
Common Stock
S - Sale X -3,391 38,038 -8.19 124.26 -421,353 4,726,457
2021-01-19 2021-01-15 4 PTC PTC INC.
Common Stock
S - Sale X -2,034 41,429 -4.68 123.24 -250,672 5,105,751
2020-11-19 2020-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 15,842 15,842
2020-11-19 2020-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 7,921 7,921
2020-11-19 2020-11-17 4 PTC PTC INC.
Restricted Stock Units
A - Award 7,921 7,921
2020-11-18 2020-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -5,782 43,463 -11.74 98.15 -567,495 4,265,833
2020-11-18 2020-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -1,000 49,245 -1.99 97.11 -97,111 4,782,231
2020-11-18 2020-11-16 4 PTC PTC INC.
Common Stock
S - Sale X -1,474 50,245 -2.85 95.98 -141,473 4,822,480
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 3,330 0 -100.00
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 5,550 11,098 100.04
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 1,734 0 -100.00
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 4,892 4,892
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 2,446 0 -100.00
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 3,024 0 -100.00
2020-11-17 2020-11-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise 5,214 0 -100.00
2020-11-17 2020-11-15 4 PTC PTC INC.
Common Stock
F - Taxes -10,627 51,719 -17.05 97.21 -1,033,051 5,027,604
2020-11-17 2020-11-15 4 PTC PTC INC.
Common Stock
M - Exercise 26,190 62,346 72.44
2020-11-16 2020-11-12 4 PTC PTC INC.
Common Stock
F - Taxes -706 36,156 -1.92 94.68 -66,844 3,423,250
2020-11-16 2020-11-12 4 PTC PTC INC.
Common Stock
A - Award 2,403 36,862 6.97
2020-11-09 2020-11-05 4 PTC PTC INC.
Restricted Stock Units
A - Award 3,330 3,330
2020-09-28 2020-09-24 4 PTC PTC INC.
Restricted Stock Unit
A - Award 1,734 1,734
2020-09-28 2020-09-24 4 PTC PTC INC.
Restricted Stock Unit
A - Award 2,446 2,446
2020-09-28 2020-09-24 4 PTC PTC INC.
Restricted Stock Unit
A - Award 3,024 3,024
2020-05-19 2020-05-18 4 PTC PTC INC.
Restricted Stock Units
A - Award 14,499 0 -100.00
2020-03-16 2020-03-15 4 PTC PTC INC.
Restricted Stock Units
M - Exercise -2,302 2,302 -50.00
2020-03-16 2020-03-15 4 PTC PTC INC.
Common Stock
F - Taxes -728 22,417 -3.15 56.37 -41,037 1,263,646
2020-03-16 2020-03-15 4 PTC PTC INC.
Common Stock
M - Exercise 2,302 23,145 11.04
2020-02-20 3 PTC PTC INC.
Common Stock
41,686
2020-02-20 3 PTC PTC INC.
Common Stock
41,686
2020-02-20 3 PTC PTC INC.
Common Stock
41,686
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)