David F. Hermance

Insider

First SEC filing: Jan. 5, 2022 · Latest: Jan. 5, 2022

On this page

Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

AME selling Aug. 7, 2026

Insider transactions

0 buys (P) 1 sells (S) Net: $-1,678,432 + 51 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

51 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 7, 2026	AME	M	6,608	$85.45	$564,654	49,117 Direct	+15.54%	Acquired	180.9% (price as of 2026-08-20)
Aug. 7, 2026	AME	S	6,608	$254.00	$1,678,432	42,509 Direct	-13.45%	Disposed	-5.5% (price as of 2026-08-20)
Aug. 7, 2026	AME	M	6,608	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 22, 2026	AME	F	283	$209.37	$59,252	42,509 Direct	-0.66%	Disposed	14.6% (price as of 2026-08-20)
March 19, 2026	AME	F	186	$211.50	$39,339	42,792 Direct	-0.43%	Disposed	13.5% (price as of 2026-08-20)
March 18, 2026	AME	A	3,930	—	—	3,930 Direct	—	Acquired	(price as of 2026-08-20)
March 18, 2026	AME	F	248	$212.77	$52,767	42,978 Direct	-0.57%	Disposed	12.8% (price as of 2026-08-20)
March 18, 2026	AME	A	1,240	$212.77	$263,835	43,226 Direct	+2.95%	Acquired	12.8% (price as of 2026-08-20)
Feb. 17, 2026	AME	F	831	$233.33	$193,897	41,986 Direct	-1.94%	Disposed	2.9% (price as of 2026-08-20)
Feb. 17, 2026	AME	A	2,652	—	—	42,817 Direct	+6.60%	Acquired	(price as of 2026-08-20)
Feb. 17, 2026	AME	J	3	—	—	484 Indirect	+0.62%	Acquired	(price as of 2026-08-20)
Feb. 17, 2026	AME	J	6	—	—	993 Direct	+0.61%	Acquired	(price as of 2026-08-20)
March 22, 2025	AME	F	283	$174.52	$49,389	40,165 Direct	-0.70%	Disposed	37.5% (price as of 2026-08-20)
March 21, 2025	AME	F	223	$174.52	$38,918	40,448 Direct	-0.55%	Disposed	37.5% (price as of 2026-08-20)
March 19, 2025	AME	F	122	$177.07	$21,603	40,671 Direct	-0.30%	Disposed	35.6% (price as of 2026-08-20)
March 18, 2025	AME	A	5,250	—	—	5,250 Direct	—	Acquired	(price as of 2026-08-20)
March 18, 2025	AME	A	1,710	$176.08	$301,097	40,793 Direct	+4.38%	Acquired	36.3% (price as of 2026-08-20)
Feb. 20, 2025	AME	J	7	—	—	987 Direct	+0.71%	Acquired	(price as of 2026-08-20)
Feb. 20, 2025	AME	J	3	—	—	481 Indirect	+0.63%	Acquired	(price as of 2026-08-20)
Feb. 20, 2025	AME	F	938	$188.78	$177,076	39,083 Direct	-2.34%	Disposed	27.1% (price as of 2026-08-20)
Feb. 20, 2025	AME	A	3,290	—	—	40,021 Direct	+8.96%	Acquired	(price as of 2026-08-20)
Nov. 8, 2024	AME	M	6,243	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 8, 2024	AME	S	6,243	$190.99	$1,192,351	36,731 Direct	-14.53%	Disposed	25.7% (price as of 2026-08-20)
Nov. 8, 2024	AME	M	6,243	$73.45	$458,548	42,974 Direct	+17.00%	Acquired	226.8% (price as of 2026-08-20)
March 22, 2024	AME	F	186	$183.15	$34,066	36,731 Direct	-0.50%	Disposed	31.1% (price as of 2026-08-20)
March 21, 2024	AME	F	213	$184.91	$39,386	36,917 Direct	-0.57%	Disposed	29.8% (price as of 2026-08-20)
March 19, 2024	AME	A	3,880	—	—	3,880 Direct	—	Acquired	(price as of 2026-08-20)
March 19, 2024	AME	A	1,280	$181.93	$232,870	37,130 Direct	+3.57%	Acquired	31.9% (price as of 2026-08-20)
March 11, 2024	AME	F	94	$180.86	$17,001	35,850 Direct	-0.26%	Disposed	32.7% (price as of 2026-08-20)
Feb. 22, 2024	AME	J	2	—	—	478 Indirect	+0.42%	Acquired	(price as of 2026-08-20)
Feb. 22, 2024	AME	J	6	—	—	980 Direct	+0.62%	Acquired	(price as of 2026-08-20)
Feb. 22, 2024	AME	F	186	$178.21	$33,147	35,944 Direct	-0.51%	Disposed	34.7% (price as of 2026-08-20)
Feb. 22, 2024	AME	A	650	—	—	36,130 Direct	+1.83%	Acquired	(price as of 2026-08-20)
Nov. 5, 2023	AME	F	84	$143.46	$12,051	35,480 Direct	-0.24%	Disposed	67.3% (price as of 2026-08-20)
March 22, 2023	AME	A	6,250	—	—	6,250 Direct	—	Acquired	(price as of 2026-08-20)
March 22, 2023	AME	A	1,950	$138.46	$269,997	35,564 Direct	+5.80%	Acquired	73.3% (price as of 2026-08-20)
March 21, 2023	AME	F	213	$140.07	$29,835	33,614 Direct	-0.63%	Disposed	71.4% (price as of 2026-08-20)
March 20, 2023	AME	F	157	$138.54	$21,751	33,827 Direct	-0.46%	Disposed	73.2% (price as of 2026-08-20)
March 13, 2023	AME	F	94	$135.35	$12,723	33,984 Direct	-0.28%	Disposed	77.3% (price as of 2026-08-20)
Feb. 21, 2023	AME	J	4	—	—	476 Indirect	+0.85%	Acquired	(price as of 2026-08-20)
Feb. 21, 2023	AME	J	7	—	—	974 Direct	+0.72%	Acquired	(price as of 2026-08-20)
Feb. 21, 2023	AME	F	336	$143.00	$48,048	34,078 Direct	-0.98%	Disposed	67.8% (price as of 2026-08-20)
Feb. 21, 2023	AME	A	1,176	—	—	34,414 Direct	+3.54%	Acquired	(price as of 2026-08-20)
Nov. 5, 2022	AME	F	127	$134.60	$17,094	33,238 Direct	-0.38%	Disposed	78.3% (price as of 2026-08-20)
Nov. 2, 2022	AME	M	11,816	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 2, 2022	AME	S	1,900	$131.25	$249,375	33,365 Direct	-5.39%	Disposed	82.9% (price as of 2026-08-20)
Nov. 2, 2022	AME	S	9,916	$132.04	$1,309,309	35,265 Direct	-21.95%	Disposed	81.8% (price as of 2026-08-20)
Nov. 2, 2022	AME	M	11,816	$131.91	$1,558,649	45,181 Direct	+35.41%	Acquired	82.0% (price as of 2026-08-20)
May 9, 2022	AME	F	137	$121.84	$16,692	33,365 Direct	-0.41%	Disposed	97.0% (price as of 2026-08-20)
March 21, 2022	AME	A	8,130	—	—	8,130 Direct	—	Acquired	(price as of 2026-08-20)
March 21, 2022	AME	F	157	$134.69	$21,146	33,502 Direct	-0.47%	Disposed	78.2% (price as of 2026-08-20)
March 21, 2022	AME	A	2,240	$134.69	$301,706	33,659 Direct	+7.13%	Acquired	78.2% (price as of 2026-08-20)
March 11, 2022	AME	F	94	$126.34	$11,876	31,419 Direct	-0.30%	Disposed	90.0% (price as of 2026-08-20)
Feb. 22, 2022	AME	F	368	$127.44	$46,898	31,513 Direct	-1.15%	Disposed	88.3% (price as of 2026-08-20)
Feb. 22, 2022	AME	A	1,291	—	—	31,881 Direct	+4.22%	Acquired	(price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Aug. 7, 2026	AME	Stock Option	Common Stock (6,608)	$85.45	May 9, 2029	6,608	Disposed
March 18, 2026	AME	Stock Option	Common Stock (3,930)	$212.77	March 18, 2036	3,930	Acquired
March 18, 2025	AME	Stock Option	Common Stock (5,250)	—	March 18, 2035	5,250	Acquired
Nov. 8, 2024	AME	Stock Option	Common Stock (6,243)	$73.45	May 8, 2028	6,243	Disposed
March 19, 2024	AME	Stock Option	Common Stock (3,880)	$181.93	March 19, 2034	3,880	Acquired
March 22, 2023	AME	Stock Option	Common Stock (6,250)	$138.46	March 22, 2033	6,250	Acquired
Nov. 2, 2022	AME	Stock Option	Common Stock (11,816)	$60.30	May 9, 2024	11,816	Disposed
March 21, 2022	AME	Stock Option	Common Stock (8,130)	$134.69	March 21, 2032	8,130	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 8 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Jan. 5, 2022	AME	401k Plan	472	Indirect
Jan. 5, 2022	AME	Common Stock	30,590	Direct
Jan. 5, 2022	AME	Common Stock/ Serp	967	Direct
Jan. 5, 2022	AME	Stock Option→ Common Stock (11,816)	11,816	Direct
Jan. 5, 2022	AME	Stock Option→ Common Stock (6,243)	6,243	Direct
Jan. 5, 2022	AME	Stock Option→ Common Stock (6,608)	6,608	Direct
Jan. 5, 2022	AME	Stock Option→ Common Stock (7,431)	7,431	Direct
Jan. 5, 2022	AME	Stock Option→ Common Stock (3,967)	3,967	Direct