Michael Graff Net Worth - Insider Trades and Bio as of Jun 4, 2026

TDGTransDigm Group INCSEC CIK: 0001299926

Estimated Net Worth

$7.94 Billion0.0%vs Last Year

Last Updated: May 19, 2026 11:13 PM EST

Transaction Summary

Total Transactions125

Buy-Sell Ratio0.83

Buy Transactions20

Sell Transactions24

Transaction Volume

Total Volume-$754.08M

Net Volume$764.56M

Buy Volume$5.24M

Sell Volume-$759.32M

Trade Analysis

AVG Trade Size-$5.66M

Largest Trade$53.87M

Most Active MonthMar

Most Active Year2012

Trading Sentiment

OverallBullish

Recent TradeNeutral

Last 90 Days0 Trades

ConvictionNone

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Michael Graff has an estimated net worth of $7.94 Billion. This is based on reported shares across multiple companies, which include TransDigm Group INC, Builders FirstSource, Inc., and Polypore International, Inc..

2008 was Michael Graff's most active year for acquiring shares with 153 total transactions. Michael Graff's most active month to acquire stocks was the month of February. 2008 was Michael Graff's most active year for disposing of shares, totalling 89 transactions. Michael Graff's most active month to dispose stocks was the month of May. 2010 saw Michael Graff paying a total of $53,887,093.55 for 15,392,274.5 shares, this is the most they've acquired in one year. In 2007 Michael Graff cashed out on 16,682,220 shares for a total of $342,451,529.25, their largest year based on trade value.

Holdings & Transactions

TDGtransdigm group inc

Updated: Mar 23, 2026VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	0.02	30.00	$1,214.66	$36.44K	Mar 23, 2026	13.78K	Grant	—	Mar 20	View
From 4	-0.17	340.00	—	—	Nov 25, 2025	13.75K	Grant	—	Nov 21	View
From 4	—	518.00	—	—	Nov 06, 2025	518.00	Grant	—	Nov 04	View
From 4	0.01	29.00	$1,288.13	$37.36K	Sep 22, 2025	14.09K	Grant	—	Sep 19	View
From 4	-0.47	1.76K	$779.29	-$2.19M	Aug 27, 2025	14.06K	Sale	—	Aug 26	View
From 4	—	—	—	—	Jun 13, 2025	14.06K	Grant	—	Jun 12	View
From 4	—	—	—	—	May 16, 2025	14.06K	Grant	—	May 14	View
From 4	0.01	27.00	$1,346.50	$36.36K	Mar 26, 2025	14.06K	Grant	—	Mar 26	View
From 4	-1.00	200.00	—	—	Dec 13, 2024	14.03K	Grant	—	Dec 12	View
From 4	—	450.00	—	—	Nov 20, 2024	450.00	Grant	—	Oct 31	View
From 4	0.01	27.00	$1,367.76	$36.93K	Sep 27, 2024	14.23K	Grant	—	Sep 25	View
From 4	0.00	31.00	$1,172.20	$36.34K	Mar 26, 2024	14.21K	Acquisition	—	Mar 22	View
From 4	-0.44	4.00K	$1,187.40	-$4.75M	Mar 18, 2024	14.18K	Disposition	—	Mar 14	View
From 4	-0.39	4.46K	$657.45	-$3.12M	Feb 13, 2024	19.94K	Sale	—	Nov 29 - 13	View
From 4	—	670.00	—	—	Nov 06, 2023	670.00	Grant	—	Nov 02	View
From 4	0.01	43.00	$864.70	$37.18K	Sep 27, 2023	4.88K	Grant	—	Sep 25	View
From 4	-0.31	4.00K	$847.97	-$3.39M	Jun 26, 2023	19.13K	Disposition	—	Jun 22	View
From 4	0.01	53.00	$697.13	$36.95K	Mar 29, 2023	4.84K	Grant	—	Mar 27	View
From 4	—	855.00	—	—	Nov 14, 2022	855.00	Grant	—	Nov 09	View
From 4	0.01	63.00	$587.10	$36.99K	Sep 27, 2022	4.78K	Grant	—	Sep 23	View
From 4	0.01	58.00	$646.03	$37.47K	Mar 29, 2022	4.72K	Grant	—	Mar 28	View
From 4	—	799.00	—	—	Nov 16, 2021	799.00	Grant	—	Nov 14	View
From 4	0.01	61.00	$612.96	$37.39K	Sep 29, 2021	4.66K	Grant	—	Sep 28	View
From 4	0.01	60.00	$617.46	$37.05K	Mar 18, 2021	4.60K	Grant	—	Mar 17	View
From 4	0.02	76.00	$491.32	$37.34K	Oct 19, 2020	4.54K	Grant	—	Oct 19	View
From 4	0.18	618.00	$448.07	$276.91K	Jun 12, 2020	4.00K	Purchase	—	Jun 12	View
From 4/A	—	—	—	—	Mar 23, 2020	4.47K	Acq/Dis	—	Mar 17	View
From 4	0.02	90.00	$414.72	$37.32K	Mar 17, 2020	4.56K	Grant	—	Mar 17	View
From 4	-0.60	1.80K	—	—	Dec 12, 2019	1.20K	Grant	—	Dec 09	View
From 4	—	3.00K	—	—	Nov 18, 2019	3.00K	Grant	—	Nov 15	View
From 4	0.01	57.00	$519.82	$29.63K	Sep 18, 2019	4.47K	Grant	—	Sep 18	View
From 4	—	—	—	—	Jul 24, 2019	16.10K	Acq/Dis	—	Jul 23	View
From 4	0.02	68.00	$439.87	$29.91K	Mar 19, 2019	4.41K	Grant	—	Mar 15	View
From 4	-0.04	182.00	$424.36	-$77.23K	Feb 12, 2019	4.34K	Sale	—	Feb 08	View
From 4	-0.21	2.56K	$327.96	-$494.35K	Feb 11, 2019	9.74K	Sale	—	Feb 08	View
From 4	0.02	81.00	$369.99	$29.97K	Sep 19, 2018	4.52K	Grant	—	Sep 14	View
From 4	0.02	101.00	$296.00	$29.90K	Mar 16, 2018	4.44K	Grant	—	Mar 15	View
From 4	-0.48	4.00K	—	—	Dec 08, 2017	4.34K	Grant	—	Dec 06	View
From 4	-0.14	1.87K	$239.77	-$195.93K	Dec 04, 2017	11.42K	Sale	—	Dec 01	View
From 4/A	—	4.70K	—	—	Nov 09, 2017	4.70K	Options	—	Nov 08	View
From 4	—	—	—	—	Nov 09, 2017	4.70K	—	—	—	View
From 4	0.01	117.00	$256.15	$29.97K	Sep 18, 2017	8.59K	Grant	—	Sep 18	View
From 4	0.02	129.00	$231.76	$29.90K	Mar 17, 2017	8.47K	Grant	—	Mar 16	View
From 4	-0.23	3.93K	$220.49	-$339.06K	Nov 22, 2016	13.05K	Sale	—	Nov 21	View
From 4/A	—	3.65K	—	—	Nov 22, 2016	3.65K	Options	—	Nov 06	View
From 4	0.01	105.00	$284.32	$29.85K	Sep 19, 2016	8.85K	Grant	—	Sep 19	View
From 4	0.02	136.00	$219.09	$29.80K	Mar 21, 2016	8.75K	Grant	—	Mar 15	View
From 4	1.00	3.65K	—	—	Nov 17, 2015	7.30K	Options	—	Nov 06	View
From 4	0.02	130.00	$229.43	$29.83K	Sep 18, 2015	8.61K	Grant	—	Sep 18	View
From 4	-0.17	1.75K	—	—	Aug 10, 2015	8.48K	Grant	—	Aug 06	View
From 4	-0.16	1.95K	—	—	Jun 26, 2015	10.23K	Grant	—	Jun 25	View
From 4	0.01	139.00	$214.82	$29.86K	Mar 24, 2015	12.18K	Grant	—	Mar 24	View
From 4	-0.65	21.35K	$109.81	-$3.68M	Nov 18, 2014	11.25K	Sale	—	Nov 17	View
From 4	0.01	157.00	$189.99	$29.83K	Oct 03, 2014	16.70K	Grant	—	Oct 02	View
From 4/A	—	4.48K	—	—	May 08, 2014	4.48K	Options	—	Apr 24	View
From 4	—	4.48K	—	—	May 02, 2014	4.48K	Options	—	Apr 24	View
From 4	0.01	83.00	$179.53	$14.90K	Mar 20, 2014	16.54K	Grant	—	Mar 20	View
From 4	0.01	104.00	$143.70	$14.94K	Sep 17, 2013	19.84K	Grant	—	Sep 16	View
From 4	0.01	99.00	$151.02	$14.95K	Mar 20, 2013	19.74K	Grant	—	Mar 18	View
From 4	—	—	—	—	Dec 17, 2012	16.10K	Grant	—	Dec 17	View
From 4	—	—	—	—	Nov 21, 2012	35.74K	Grant	—	Nov 20	View
From 4	—	—	$6.68	$107.52K	Oct 12, 2012	35.74K	Options	—	Oct 10	View
From 4	0.01	103.00	$145.61	$15.00K	Sep 19, 2012	19.64K	Grant	—	Sep 19	View
From 4	-0.36	20.00K	$66.58	-$2.40M	May 11, 2012	35.63K	Sale	—	May 10	View
From 4	0.01	130.00	$115.30	$14.99K	Mar 21, 2012	19.54K	Grant	—	Mar 19	View
From 4	-0.29	12.00K	$61.54	-$1.32M	Feb 10, 2012	29.08K	Sale	—	Feb 09	View
From 4	0.01	167.00	$89.45	$14.94K	Sep 19, 2011	19.41K	Grant	—	Sep 15	View
From 4	-0.33	20.00K	$48.69	-$1.68M	Sep 08, 2011	40.92K	Sale	—	Sep 07 - 08	View
From 4	-0.14	10.00K	$44.11	-$748.60K	Jun 01, 2011	60.92K	Sale	—	Jun 01	View
From 4	0.01	188.00	$79.72	$14.99K	Mar 16, 2011	19.24K	Grant	—	Mar 15	View
From 4	-0.32	30.00K	$44.30	-$2.26M	Feb 10, 2011	63.72K	Sale	—	Feb 09	View
From 4	—	242.00	$61.90	$14.98K	Sep 21, 2010	143.84K	Grant	—	Sep 20	View
From 4	—	286.00	$52.44	$15.00K	Mar 29, 2010	143.59K	Grant	—	Mar 29	View
From 4	-0.98	15.95K	$45.55	-$715.59K	Sep 23, 2009	143.31K	Sale	—	Sep 08 - 22	View
From 4	-0.99	2.62M	—	—	Aug 07, 2009	159.26K	Disposition	—	Aug 06	View
From 4	-0.50	2.62M	—	—	Jun 11, 2009	2.78M	Disposition	—	Jun 10	View
From 4	-0.28	2.08M	—	—	May 29, 2009	5.39M	Disposition	—	May 28	View
From 4	-0.16	1.35M	—	—	Mar 24, 2009	7.47M	Disposition	—	Mar 23	View
From 4	—	467.00	$32.12	$15.00K	Mar 18, 2009	8.82M	Grant	—	Mar 16	View
From 4	-0.24	2.70M	$34.20	-$92.34M	Feb 20, 2009	8.82M	Sale	—	Feb 19	View
From 4	59.96	15.77K	—	—	Nov 19, 2008	11.52M	Acquisition	—	Nov 17	View
From 4	0.24	441.00	$34.00	$14.99K	Sep 18, 2008	11.51M	Grant	—	Sep 16	View
From 4/A	-0.27	5.00K	$43.46	-$217.29K	Jun 10, 2008	11.51M	Sale	—	Jun 03	View
From 4	-0.59	11.00K	$43.46	-$217.29K	Jun 05, 2008	11.50M	Sale	—	Jun 03	View
From 4	-0.16	19.00K	$15.80	-$819.54K	Jun 05, 2008	11.51M	Sale	—	Jun 03	View
From 4	-0.52	15.06K	$43.36	-$652.99K	Jun 03, 2008	11.53M	Sale	—	May 30	View
From 4	-0.34	15.00K	$42.56	-$638.38K	Jun 02, 2008	11.55M	Sale	—	May 29	View
From 4	-0.21	3.02M	—	—	May 14, 2008	11.56M	Disposition	—	May 12	View
From 4	—	263.00	$37.97	$9.99K	Apr 29, 2008	14.59M	Grant	—	Apr 25	View
From 4	0.27	398.00	$37.61	$14.97K	Mar 19, 2008	14.59M	Grant	—	Mar 17	View
From 4	-0.19	3.46M	—	—	Dec 11, 2007	14.58M	Disposition	—	Dec 10	View
From 4	-0.16	3.47M	—	—	Nov 28, 2007	18.04M	Disposition	—	Nov 26	View
From 4	0.35	380.00	$39.43	$14.98K	Sep 19, 2007	21.51M	Grant	—	Sep 17	View
From 4	-0.31	9.71M	$35.25	-$342.45M	May 29, 2007	21.51M	Sale	—	May 25	View
From 4	—	260.00	$38.44	$9.99K	Apr 24, 2007	31.23M	Grant	—	Apr 20	View
From 4	—	461.00	$32.50	$14.98K	Apr 03, 2007	31.23M	Grant	—	Mar 30	View
From 4	—	631.00	$23.76	$14.99K	Oct 05, 2006	31.23M	Grant	—	Oct 03	View
From 4	—	395.00	—	—	Apr 25, 2006	31.23M	Grant	—	Apr 21	View
From 4	-0.03	821.59K	$21.00	-$17.25M	Mar 22, 2006	31.23M	Sale	—	Mar 20	View
From 3	—	—	—	—	Mar 14, 2006	30.63M	—	—	—	View

BLDRbuilders firstsource, inc.

Updated: May 25, 2016VIEW QUOTE

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 4	-1.00	13.26M	$10.40	-$137.94M	May 25, 2016	—	Sale	—	May 24	View
From 4	-0.35	7.00M	$13.05	-$91.35M	Nov 25, 2015	13.26M	Sale	—	Nov 25	View
From 4	-0.19	4.60M	$12.22	-$56.23M	Aug 03, 2015	20.26M	Sale	—	Jul 31	View
From 4	0.00	8.13K	$3.71	$30.16K	Jun 11, 2012	24.86M	Purchase	—	Jun 07	View
From 4	0.00	41.30K	$3.56	$146.06K	Jun 06, 2012	49.68M	Purchase	—	Jun 04 - 06	View
From 4	0.00	4.80K	$3.95	$18.96K	Jun 01, 2012	24.81M	Purchase	—	May 30	View
From 4	0.00	31.89K	$3.98	$126.65K	May 29, 2012	49.60M	Purchase	—	May 24 - 29	View
From 4	0.00	56.80K	$3.72	$211.07K	May 23, 2012	49.53M	Purchase	—	May 21 - 23	View
From 4	0.00	46.60K	$4.00	$187.11K	May 18, 2012	49.42M	Purchase	—	May 16 - 18	View
From 4	0.00	59.84K	$3.92	$235.19K	May 09, 2012	49.31M	Purchase	—	May 07 - 09	View
From 4	0.00	22.67K	$3.14	$71.19K	Mar 09, 2012	24.61M	Purchase	—	Mar 07	View
From 4	0.00	43.70K	$3.12	$136.35K	Mar 06, 2012	49.17M	Purchase	—	Mar 02 - 06	View
From 4	0.00	100.11K	$3.13	$310.94K	Mar 01, 2012	49.01M	Purchase	—	Feb 28 - 01	View
From 4	0.12	2.53M	$3.50	$53.87M	Jan 22, 2010	24.45M	Options	—	Jan 21	View
From 4	0.00	500.00	$6.75	$3.38K	Mar 14, 2008	9.06M	Purchase	—	Mar 12	View
From 4	0.00	35.52K	$6.52	$231.62K	Mar 12, 2008	9.05M	Purchase	—	Mar 10 - 11	View
From 4	0.01	44.90K	$6.52	$292.77K	Mar 10, 2008	9.01M	Purchase	—	Mar 06 - 07	View
From 4	0.00	36.30K	$6.46	$234.66K	Mar 06, 2008	8.96M	Purchase	—	Mar 04 - 05	View
From 4	0.01	73.33K	$6.66	$488.48K	Mar 04, 2008	8.92M	Purchase	—	Feb 29 - 03	View
From 4	0.01	53.10K	$6.93	$368.06K	Feb 29, 2008	8.82M	Purchase	—	Feb 27 - 28	View
From 4	0.00	39.59K	$16.42	$649.99K	Mar 16, 2007	8.76M	Purchase	—	Mar 14	View
From 4	0.00	21.30K	$16.92	$360.35K	Dec 06, 2006	8.73M	Purchase	—	Dec 04	View
From 4	0.01	51.20K	$16.82	$861.12K	Dec 04, 2006	8.70M	Purchase	—	Nov 30 - 01	View
From 3	—	—	—	—	Mar 03, 2006	8.65M	—	—	—	View

polypore international, inc.

Updated: Jun 27, 2007

Form Type	Δ Own, %	Traded Shares	Price	Size, $	Filing Date	Own, %	Type	Scheduled	Trade Dates	SEC Filing
From 3	—	—	—	—	Jun 27, 2007	25.31M	—	—	—	View

Benzinga

Benzinga

Net Worth & Trading Activity Over Time

Monthly Trading Pattern

Past Insider Trading and Trends

Holdings & Transactions