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$ATRO

$83.43 -$2.18 (2.55%)

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Insider Transactions

Insider Transaction Summary

T. Keane 2016 GRAT Kevin

1,495,309 shares

Net: 0 B/S: -

PETER J GUNDERMANN

97,457 shares

Net: +55,947 B/S: ∞

ROBERT T BRADY

90,602 shares

Net: +10,049 B/S: ∞

SARANAC LLC 5096

85,695 shares

Net: 0 B/S: -

KEVIN T KEANE

81,063 shares

Net: 0 B/S: -

MARK PEABODY

65,025 shares

Net: +20,063 B/S: ∞

DAVID C BURNEY

61,307 shares

Net: 0 B/S: -

WARREN C JOHNSON

49,756 shares

Net: +7,588 B/S: ∞

JEFFRY D FRISBY

47,056 shares

Net: +5,588 B/S: ∞

NEIL Y. KIM

44,056 shares

Net: +7,588 B/S: ∞

MARK J MORAN

44,056 shares

Net: +7,588 B/S: ∞

James Mulato

38,578 shares

Net: +165 B/S: 2.31

JAMES S KRAMER

36,941 shares

Net: 0 B/S: -

Nancy L Hedges

33,870 shares

Net: +17,075 B/S: ∞

Linda O'Brien

21,372 shares

Net: +7,588 B/S: ∞

TONIT M CALAWAY

15,730 shares

Net: 0 B/S: -

Robert S Keane

13,934 shares

Net: +7,588 B/S: ∞

Michael C Kuehn

13,210 shares

Net: 0 B/S: -

Julie M Davis

8,938 shares

Net: +1,528 B/S: ∞

Fay West

7,588 shares

Net: +7,588 B/S: ∞

RAYMOND W BOUSHIE

7,438 shares

Net: 0 B/S: -

ROBERT J MCKENNA

2,523 shares

Net: 0 B/S: -

JOHN B DRENNING

2,222 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
T. Keane 2016 GRAT Kevin	1,495,309	0	-
PETER J GUNDERMANN	97,457	+55,947	∞
ROBERT T BRADY	90,602	+10,049	∞
SARANAC LLC 5096	85,695	0	-
KEVIN T KEANE	81,063	0	-
MARK PEABODY	65,025	+20,063	∞
DAVID C BURNEY	61,307	0	-
WARREN C JOHNSON	49,756	+7,588	∞
JEFFRY D FRISBY	47,056	+5,588	∞
NEIL Y. KIM	44,056	+7,588	∞
MARK J MORAN	44,056	+7,588	∞
James Mulato	38,578	+165	2.31
JAMES S KRAMER	36,941	0	-
Nancy L Hedges	33,870	+17,075	∞
Linda O'Brien	21,372	+7,588	∞
TONIT M CALAWAY	15,730	0	-
Robert S Keane	13,934	+7,588	∞
Michael C Kuehn	13,210	0	-
Julie M Davis	8,938	+1,528	∞
Fay West	7,588	+7,588	∞
RAYMOND W BOUSHIE	7,438	0	-
ROBERT J MCKENNA	2,523	0	-
JOHN B DRENNING	2,222	0	-

Individual Transactions

March 03, 2026

Julie M Davis

Option Exercise/Conversion

Change: +3,000

Price: $81.35

Shares: 8,938

Value: +$244,050

Julie M Davis

Tax Payment

Change: -1,472

Price: $81.35

Shares: 7,466

Value: -$119,747

James Mulato

Option Exercise/Conversion

Change: +11,500

Price: $81.35

Shares: 38,578

Value: +$935,525

James Mulato

Tax Payment

Change: -2,801

Price: $81.35

Shares: 35,777

Value: -$227,861

Nancy L Hedges

Option Exercise/Conversion

Change: +5,050

Price: $81.35

Shares: 33,870

Value: +$410,817

Nancy L Hedges

Tax Payment

Change: -1,821

Price: $81.35

Shares: 32,049

Value: -$148,138

MARK PEABODY

Option Exercise/Conversion

Change: +10,850

Price: $81.35

Shares: 65,025

Value: +$882,647

MARK PEABODY

Tax Payment

Change: -2,642

Price: $81.35

Shares: 62,383

Value: -$214,926

PETER J GUNDERMANN

Option Exercise/Conversion

Change: +13,550

Price: $81.35

Shares: 97,457

Value: +$1,102,292

PETER J GUNDERMANN

Tax Payment

Change: -3,489

Price: $81.35

Shares: 93,968

Value: -$283,830

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Julie M Davis	Mar 05	Option Exercise/Conversion (M) Compensation/Award	8,938	+3,000	$81.35	+$244,050
Julie M Davis	Mar 05	Tax Payment (F) Tax Payment	7,466	-1,472	$81.35	-$119,747
James Mulato	Mar 05	Option Exercise/Conversion (M) Compensation/Award	38,578	+11,500	$81.35	+$935,525
James Mulato	Mar 05	Tax Payment (F) Tax Payment	35,777	-2,801	$81.35	-$227,861
Nancy L Hedges	Mar 05	Option Exercise/Conversion (M) Compensation/Award	33,870	+5,050	$81.35	+$410,817
Nancy L Hedges	Mar 05	Tax Payment (F) Tax Payment	32,049	-1,821	$81.35	-$148,138
MARK PEABODY	Mar 05	Option Exercise/Conversion (M) Compensation/Award	65,025	+10,850	$81.35	+$882,647
MARK PEABODY	Mar 05	Tax Payment (F) Tax Payment	62,383	-2,642	$81.35	-$214,926
PETER J GUNDERMANN	Mar 05	Option Exercise/Conversion (M) Compensation/Award	97,457	+13,550	$81.35	+$1,102,292
PETER J GUNDERMANN	Mar 05	Tax Payment (F) Tax Payment	93,968	-3,489	$81.35	-$283,830

February 26, 2026

ROBERT T BRADY

Option Exercise/Conversion

Change: +4,000

Price: $22.93

Shares: 90,602

Value: +$91,720

ROBERT T BRADY

Tax Payment

Change: -1,539

Price: $78.84

Shares: 89,063

Value: -$121,334

Insider	Filing Date	Transaction	Shares	Change	Price	Value
ROBERT T BRADY	Mar 02	Option Exercise/Conversion (M) Compensation/Award	90,602	+4,000	$22.93	+$91,720
ROBERT T BRADY	Mar 02	Tax Payment (F) Tax Payment	89,063	-1,539	$78.84	-$121,334

February 19, 2026

Robert S Keane

Grant/Award Acquisition

Change: +1,533

Price: $0.00

Shares: 13,934

Value: +$0

MARK J MORAN

Grant/Award Acquisition

Change: +1,533

Price: $0.00

Shares: 44,056

Value: +$0

Linda O'Brien

Grant/Award Acquisition

Change: +1,533

Price: $0.00

Shares: 21,372

Value: +$0

James Mulato

Grant/Award Acquisition

Change: +7,675

Price: $0.00

Shares: 7,675

Value: +$0

Nancy L Hedges

Grant/Award Acquisition

Change: +12,150

Price: $0.00

Shares: 12,150

Value: +$0

Fay West

Grant/Award Acquisition

Change: +1,533

Price: $0.00

Shares: 7,588

Value: +$0

MARK PEABODY

Grant/Award Acquisition

Change: +7,675

Price: $0.00

Shares: 7,675

Value: +$0

NEIL Y. KIM

Grant/Award Acquisition

Change: +1,533

Price: $0.00

Shares: 44,056

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Robert S Keane	Feb 23	Grant/Award Acquisition (A) Compensation/Award	13,934	+1,533	$0.00	+$0
MARK J MORAN	Feb 23	Grant/Award Acquisition (A) Compensation/Award	44,056	+1,533	$0.00	+$0
Linda O'Brien	Feb 23	Grant/Award Acquisition (A) Compensation/Award	21,372	+1,533	$0.00	+$0
James Mulato	Feb 23	Grant/Award Acquisition (A) Compensation/Award	7,675	+7,675	$0.00	+$0
Nancy L Hedges	Feb 23	Grant/Award Acquisition (A) Compensation/Award	12,150	+12,150	$0.00	+$0
Fay West	Feb 23	Grant/Award Acquisition (A) Compensation/Award	7,588	+1,533	$0.00	+$0
MARK PEABODY	Feb 23	Grant/Award Acquisition (A) Compensation/Award	7,675	+7,675	$0.00	+$0
NEIL Y. KIM	Feb 23	Grant/Award Acquisition (A) Compensation/Award	44,056	+1,533	$0.00	+$0