W. Nicholas Howley Insider Trading Activity

Corporate InsiderDirector · CIK 1352573

128

Total trades

$71.7M

Total volume

May 18, 2026

Last activity

TDG

TransDigm Group INC

W. Nicholas Howley has been net-selling over the last 12 months with 0 purchases and 128 sales across 1 company.

TDG is the most-traded position with 128 trades. The largest single transaction was a sale of TDG for $4.5M on May 18, 2026.

Performance Scorecard

Forward stock performance after each transaction by W. Nicholas Howley. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	+2.5%	61%	106
90 days	—	+5.3%	73%	73
120 days	—	+5.5%	78%	60

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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TDG · TransDigm Group INC

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Recent Trades

Showing the 50 most recent of 128 disclosed trades.

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	ROLE
May 18, 2026	TDG	Sell	290	$1182.81	$343K	Director
May 18, 2026	TDG	Sell	1,075	$1185.05	$1.3M	Director
May 18, 2026	TDG	Sell	463	$1168.33	$541K	Director
May 18, 2026	TDG	Sell	448	$1185.97	$531K	Director
May 18, 2026	TDG	Sell	250	$1179.67	$295K	Director
May 18, 2026	TDG	Sell	40	$1145.16	$46K	Director
May 18, 2026	TDG	Sell	390	$1169.24	$456K	Director
May 18, 2026	TDG	Sell	685	$1174.17	$804K	Director
May 18, 2026	TDG	Sell	3,801	$1188.13	$4.5M	Director
May 18, 2026	TDG	Sell	80	$1150.17	$92K	Director
May 18, 2026	TDG	Sell	87	$1183.86	$103K	Director
May 18, 2026	TDG	Sell	586	$1167.05	$684K	Director
May 18, 2026	TDG	Sell	437	$1180.97	$516K	Director
May 18, 2026	TDG	Sell	140	$1178.14	$165K	Director
May 18, 2026	TDG	Sell	50	$1162.94	$58K	Director
May 18, 2026	TDG	Sell	23	$1163.98	$27K	Director
May 18, 2026	TDG	Sell	110	$1165.51	$128K	Director
May 18, 2026	TDG	Sell	313	$1175.96	$368K	Director
May 18, 2026	TDG	Sell	60	$1146.42	$69K	Director
May 18, 2026	TDG	Sell	132	$1189.02	$157K	Director
May 18, 2026	TDG	Sell	220	$1172.31	$258K	Director
May 18, 2026	TDG	Sell	272	$1187.11	$323K	Director
Apr 20, 2026	TDG	Sell	940	$1268.46	$1.2M	Director
Apr 20, 2026	TDG	Sell	1,673	$1267.14	$2.1M	Director
Apr 20, 2026	TDG	Sell	1,304	$1266.13	$1.7M	Director
Apr 20, 2026	TDG	Sell	694	$1264.95	$878K	Director
Apr 20, 2026	TDG	Sell	589	$1263.81	$744K	Director
Apr 20, 2026	TDG	Sell	1,035	$1261.64	$1.3M	Director
Apr 20, 2026	TDG	Sell	3,077	$1262.66	$3.9M	Director
Apr 20, 2026	TDG	Sell	270	$1269.62	$343K	Director
Apr 20, 2026	TDG	Sell	430	$1270.46	$546K	Director
Apr 20, 2026	TDG	Sell	60	$1260.34	$76K	Director
Mar 18, 2026	TDG	Sell	10	$1223.80	$12K	Director
Mar 18, 2026	TDG	Sell	29	$1222.38	$35K	Director
Mar 18, 2026	TDG	Sell	40	$1221.44	$49K	Director
Mar 18, 2026	TDG	Sell	49	$1218.80	$60K	Director
Mar 18, 2026	TDG	Sell	80	$1217.57	$97K	Director
Mar 18, 2026	TDG	Sell	188	$1216.63	$229K	Director
Mar 18, 2026	TDG	Sell	125	$1215.51	$152K	Director
Mar 18, 2026	TDG	Sell	552	$1214.40	$670K	Director
Mar 18, 2026	TDG	Sell	1,159	$1213.45	$1.4M	Director
Mar 18, 2026	TDG	Sell	2,025	$1212.57	$2.5M	Director
Mar 18, 2026	TDG	Sell	1,182	$1211.46	$1.4M	Director
Mar 18, 2026	TDG	Sell	1,376	$1210.39	$1.7M	Director
Mar 18, 2026	TDG	Sell	1,246	$1209.52	$1.5M	Director
Mar 18, 2026	TDG	Sell	90	$1220.61	$110K	Director
Mar 18, 2026	TDG	Sell	324	$1208.56	$392K	Director
Mar 18, 2026	TDG	Sell	91	$1207.38	$110K	Director
Mar 18, 2026	TDG	Sell	507	$1206.05	$611K	Director
Mar 18, 2026	TDG	Sell	202	$1205.42	$243K	Director