Introduction

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

Security Title Latest Reported Holdings
US:SLG / SL Green Realty Corp. PRESIDENT, Director 6,049
How to Interpret the Charts

The following charts show the stock performance of securities subsequent to each open-market, non-planned trade made by Andrew W Mathias. 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 Andrew W Mathias 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
2023-11-06 2023-11-02 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -176,960 6,049 -96.69 32.08 -5,676,877 194,063
2022-03-04 2022-03-02 4 SLG SL GREEN REALTY CORP
LTIP Units
D - Sale to Issuer -26,779 866,489 -3.00 79.94 -2,140,713 69,267,131
2022-02-02 2022-01-31 4 SLG SL GREEN REALTY CORP
LTIP Units
D - Sale to Issuer -120,000 893,268 -11.84 76.41 -9,169,200 68,254,608
2022-02-02 2022-01-31 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 113,650 1,013,268 12.63
2022-01-21 2022-01-19 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 21,378 899,608 2.43
2022-01-21 2022-01-19 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 47,636 878,240 5.74
2021-12-15 2021-12-13 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 29,439 844,440 3.61
2021-02-16 2021-02-16 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -12,836 106,133 -10.79 65.00 -834,340 6,898,650
2021-02-16 2021-02-12 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -89,498 118,969 -42.93 65.09 -5,825,425 7,743,697
2021-02-16 2021-02-11 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -5,928 208,467 -2.76 65.00 -385,320 13,550,360
2021-02-11 2021-02-09 4 SLG SL GREEN REALTY CORP
LTIP Units
D - Sale to Issuer -139,708 815,001 -14.63 65.19 -9,107,565 53,129,915
2021-02-05 2021-02-04 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 42,680 954,709 4.68
2021-01-22 2021-01-22 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 110,233 912,029 13.75
2020-12-15 2020-12-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 27,231 801,796 3.52
2020-02-21 2020-02-19 4 SLG SL GREEN REALTY CORP
LTIP Units
D - Sale to Issuer -134,163 774,565 -14.76 94.65 -12,698,528 73,312,577
2020-02-05 2020-02-03 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 470 908,728 0.05
2020-02-05 2020-02-03 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 62,259 908,258 7.36
2020-01-22 2020-01-18 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 38,340 845,999 4.75
2019-12-23 2019-12-20 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 23,121 807,659 2.95
2019-02-15 2019-02-14 4 SLG SL GREEN REALTY CORP
LTIP Units
D - Sale to Issuer -138,447 784,538 -15.00 92.41 -12,793,887 72,499,157
2019-01-10 2019-01-08 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 38,951 922,985 4.41
2018-12-26 2018-12-21 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 21,224 884,034 2.46
2018-08-10 2018-08-08 4 SLG SL GREEN REALTY CORP
Stock Option (Right to Buy)
M - Exercise -65,000 0 -100.00
2018-08-10 2018-08-08 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -65,000 212,720 -23.40 105.34 -6,847,100 22,407,953
2018-08-10 2018-08-08 4 SLG SL GREEN REALTY CORP
Common Stock
M - Exercise 65,000 277,720 30.56 91.43 5,942,950 25,391,964
2018-01-17 2018-01-15 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 56,000 862,810 6.94
2018-01-17 2018-01-15 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 37,698 806,810 4.90
2018-01-03 2018-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 5,436 38,273 16.55
2017-01-17 2017-01-11 4/A SLG SL GREEN REALTY CORP
LTIP Units
A - Award 32,533 834,178 4.06
2017-01-13 2017-01-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 14,982 816,627 1.87
2017-01-13 2017-01-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 54,545 801,645 7.30
2017-01-13 2017-01-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 3,781 747,100 0.51
2017-01-13 2017-01-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 33,577 743,319 4.73
2017-01-04 2017-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 5,120 32,837 18.47
2016-06-29 2016-06-17 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 11,340 709,742 1.62
2016-03-02 2016-02-29 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 3,779 698,402 0.54
2016-01-14 2016-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 58,667 694,623 9.23
2016-01-14 2016-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 30,728 635,956 5.08
2016-01-05 2016-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 4,443 27,717 19.09
2015-03-25 2015-03-23 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -50,000 212,720 -19.03 133.57 -6,678,500 28,413,046
2015-01-14 2015-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 3,779 605,228 0.63
2015-01-14 2015-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 32,533 601,449 5.72
2015-01-14 2015-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 58,667 568,916 11.50
2015-01-14 2015-01-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 32,952 510,249 6.90
2015-01-05 2015-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 3,699 23,274 18.90
2014-12-22 2014-12-19 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -15,051 262,659 -5.42 121.20 -1,824,181 31,834,220
2014-12-22 2014-12-19 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -34,949 277,710 -11.18 121.02 -4,229,528 33,608,413
2014-12-16 2014-12-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 16,612 477,297 3.61
2014-09-12 2014-09-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 46,062 460,685 11.11
2014-06-13 2014-06-11 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 98,587 414,623 31.19
2014-02-25 2014-02-24 4 SLG SL GREEN REALTY CORP
LTIP Units
C - Conversion -90,000 316,036 -22.17
2014-02-25 2014-02-24 4 SLG SL GREEN REALTY CORP
Common Stock
C - Conversion 90,000 312,472 40.45
2014-01-13 2014-01-10 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 86,398 406,036 27.03
2014-01-03 2014-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 4,355 19,575 28.61
2013-12-19 2013-12-17 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 33,278 319,638 11.62
2013-11-12 2013-11-08 4 SLG SL GREEN REALTY CORP
Stock Options (Right to Buy)
A - Award 65,000 65,000
2013-11-12 2013-11-08 4 SLG SL GREEN REALTY CORP
Stock Options (Right to Buy)
A - Award 65,000 65,000
2013-11-12 2013-11-08 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 7,393 286,360 2.65
2013-09-20 2013-09-19 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -75,000 222,332 -25.22 93.07 -6,980,250 20,692,431
2013-06-28 2013-06-27 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 28,997 278,967 11.60
2013-02-22 2012-12-21 4 SLG SL GREEN REALTY CORP
LTIP Units
C - Conversion -109,501 249,970 -30.46
2013-02-22 2012-12-21 4 SLG SL GREEN REALTY CORP
Common Stock
C - Conversion 109,501 297,178 58.35
2013-02-14 2012-12-24 5 SLG SL GREEN REALTY CORP
Common Stock
G - Gift 76,694 76,694
2013-02-14 2012-12-24 5 SLG SL GREEN REALTY CORP
Common Stock
G - Gift -76,694 187,597 -29.02
2013-01-03 2013-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 4,569 15,220 42.90
2012-12-14 2012-12-12 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 65,427 359,471 22.25
2012-08-13 2012-08-09 4 SLG SL GREEN REALTY CORP
Common Stock
S - Sale -47,464 264,214 -15.23 81.08 -3,848,381 21,422,431
2012-02-09 2012-02-07 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 33,334 294,044 12.79
2012-02-09 2012-02-07 4 SLG SL GREEN REALTY CORP
Restricted Stock Unit
D - Sale to Issuer -33,334 0 -100.00
2012-02-01 2012-01-30 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 66,666 260,710 34.36
2012-02-01 2012-01-30 4 SLG SL GREEN REALTY CORP
Common Stock
D - Sale to Issuer -66,666 311,505 -17.63
2012-01-04 2012-01-03 4 SLG SL GREEN REALTY CORP
LTIP Units
A - Award 118,534 194,044 156.98
2012-01-04 2012-01-03 4 SLG SL GREEN REALTY CORP
Common Stock
F - Taxes -7,725 378,171 -2.00 68.16 -526,536 25,776,149
2012-01-04 2012-01-01 4 SLG SL GREEN REALTY CORP
Stock Units
A - Award 5,326 10,651 100.02
2012-01-04 2012-01-01 4 SLG SL GREEN REALTY CORP
Common Stock
F - Taxes -4,342 385,783 -1.11 66.64 -289,351 25,708,569
2012-01-04 2011-12-31 4 SLG SL GREEN REALTY CORP
Common Stock
F - Taxes -15,449 390,125 -3.81 66.64 -1,029,521 25,997,920
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)