GUNDERMANN PETER J

Insider

PRESIDENT/CEO

Trades at: ATRO

30D 90D 1Y

No open-market buys or sells in this period. The transactions below are grants, option exercises and gifts, which carry no market price.

Trading track record · all companies

Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.

Transactions · 365d

Open-market Buys Sells All types

No open-market buys or sells in this period — showing all activity (grants, exercises & gifts).

ATRO Other·J
Jun 15, 26

PRESIDENT/CEO

$0

147.2K sh · 13 lots
ATRO Other·J
Jun 15, 26

PRESIDENT/CEO

$0

168.4K sh
ATRO Exercise·M
Mar 3, 26

PRESIDENT/CEO

$0

13.6K sh

Own New
ATRO Exercise·M
Mar 3, 26

PRESIDENT/CEO

$1.1M

13.6K sh · $81.35

Own +16%
ATRO Other·F
Mar 3, 26

PRESIDENT/CEO

$283.8K

3.5K sh · $81.35

Own -4%
ATRO Grant·A
Feb 19, 26

PRESIDENT/CEO

$0

12.2K sh

Own New
ATRO Grant·A
Dec 4, 25

PRESIDENT/CEO

$1.5M

29.8K sh · $51.72

Own New
ATRO Exercise·M
Nov 20, 25

PRESIDENT/CEO

$502.2K

18.1K sh · $27.72 avg · 2 lots

Own New
ATRO Exercise·M
Nov 20, 25

PRESIDENT/CEO

$502.2K

18.1K sh · $27.72 avg · 2 lots

Own +2%
ATRO Other·F
Nov 20, 25

PRESIDENT/CEO

$577.7K

11.7K sh · $49.35

Own -12%
ATRO Exercise·M
Nov 20, 25

PRESIDENT/CEO

$502.2K

18.1K sh · $27.72 avg · 2 lots

Own New
ATRO Other·F
Nov 20, 25

PRESIDENT/CEO

$577.7K

11.7K sh · $49.35

Own -12%
ATRO Exercise·M
Nov 20, 25

PRESIDENT/CEO

$502.2K

18.1K sh · $27.72 avg · 2 lots

Own +2%

Date▾	Ticker	Role	Type	Shares	Own Δ	Price	Value
Jun 15, 2026	ATRO	PRESIDENT/CEO	Other J	147.2K13 lots	—	—	$0
Jun 15, 2026	ATRO	PRESIDENT/CEO	Other J	168.4K	—	—	$0
Mar 3, 2026	ATRO	PRESIDENT/CEO	Exercise M	13.6K	New	—	$0
Mar 3, 2026	ATRO	PRESIDENT/CEO	Exercise M	13.6K	+16%	$81.35	$1.1M
Mar 3, 2026	ATRO	PRESIDENT/CEO	Other F	3.5K	-4%	$81.35	$283.8K
Feb 19, 2026	ATRO	PRESIDENT/CEO	Grant A	12.2K	New	—	$0
Dec 4, 2025	ATRO	PRESIDENT/CEO	Grant A	29.8K	New	$51.72	$1.5M
Nov 20, 2025	ATRO	PRESIDENT/CEO	Exercise M	18.1K2 lots	New	$27.72 avg	$502.2K
Nov 20, 2025	ATRO	PRESIDENT/CEO	Exercise M	18.1K2 lots	+2%	$27.72 avg	$502.2K
Nov 20, 2025	ATRO	PRESIDENT/CEO	Other F	11.7K	-12%	$49.35	$577.7K
Nov 20, 2025	ATRO	PRESIDENT/CEO	Exercise M	18.1K2 lots	New	$27.72 avg	$502.2K
Nov 20, 2025	ATRO	PRESIDENT/CEO	Other F	11.7K	-12%	$49.35	$577.7K
Nov 20, 2025	ATRO	PRESIDENT/CEO	Exercise M	18.1K2 lots	+2%	$27.72 avg	$502.2K

Buy Sell Non-market (grant · exercise · gift)

About GUNDERMANN PETER J

This profile aggregates every SEC Form 4 insider transaction reported by GUNDERMANN PETER J across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.