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$ACGL

$88.77 +$1.15 (1.31%)

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Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

JOHN L JR BUNCE

1,558,321 shares

Net: 0 B/S: -

Nicolas Papadopoulo

871,594 shares

Net: +67,992 B/S: 4.1

CONSTANTINE IORDANOU

687,355 shares

Net: 0 B/S: -

Maamoun Rajeh

428,378 shares

Net: -46,711 B/S: 0.89

W Preston Hutchings

427,097 shares

Net: 0 B/S: -

David Gansberg

336,559 shares

Net: +17,177 B/S: 7.81

Francois Morin

298,788 shares

Net: +24,761 B/S: 4.1

JOHN M PASQUESI

289,556 shares

Net: -90,666 B/S: -

MARC GRANDISSON

275,784 shares

Net: 0 B/S: -

KEWSONG LEE

245,633 shares

Net: 0 B/S: -

John D Vollaro

194,122 shares

Net: -173,032 B/S: -

LOUIS T PETRILLO

151,490 shares

Net: +11,229 B/S: ∞

Mark Donald Lyons

145,216 shares

Net: 0 B/S: -

Andrew Rippert

106,389 shares

Net: 0 B/S: -

Christine Todd

100,230 shares

Net: +29,027 B/S: ∞

Eric Doppstadt

77,779 shares

Net: 0 B/S: -

David McElroy

74,765 shares

Net: 0 B/S: -

LOUIS J PAGLIA

54,056 shares

Net: 0 B/S: -

Yiorgos Lillikas

51,214 shares

Net: 0 B/S: -

Laurie Goodman

35,502 shares

Net: 0 B/S: -

Eugene S Sunshine

34,530 shares

Net: 0 B/S: -

MOIRA A. KILCOYNE

31,096 shares

Net: 0 B/S: -

THOMAS R WATJEN

23,671 shares

Net: 0 B/S: -

EILEEN A MALLESCH

11,731 shares

Net: 0 B/S: -

Francis Ebong

10,807 shares

Net: 0 B/S: -

Deanna Mulligan

10,454 shares

Net: 0 B/S: -

Daniel Joseph Houston

9,915 shares

Net: +5,300 B/S: ∞

Neal F Triplett

3,267 shares

Net: 0 B/S: -

Brian S Posner

2,000 shares

Net: -2,000 B/S: 0.33

ALEXANDER S MOCZARSKI

1,966 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
JOHN L JR BUNCE	1,558,321	0	-
Nicolas Papadopoulo	871,594	+67,992	4.1
CONSTANTINE IORDANOU	687,355	0	-
Maamoun Rajeh	428,378	-46,711	0.89
W Preston Hutchings	427,097	0	-
David Gansberg	336,559	+17,177	7.81
Francois Morin	298,788	+24,761	4.1
JOHN M PASQUESI	289,556	-90,666	-
MARC GRANDISSON	275,784	0	-
KEWSONG LEE	245,633	0	-
John D Vollaro	194,122	-173,032	-
LOUIS T PETRILLO	151,490	+11,229	∞
Mark Donald Lyons	145,216	0	-
Andrew Rippert	106,389	0	-
Christine Todd	100,230	+29,027	∞
Eric Doppstadt	77,779	0	-
David McElroy	74,765	0	-
LOUIS J PAGLIA	54,056	0	-
Yiorgos Lillikas	51,214	0	-
Laurie Goodman	35,502	0	-
Eugene S Sunshine	34,530	0	-
MOIRA A. KILCOYNE	31,096	0	-
THOMAS R WATJEN	23,671	0	-
EILEEN A MALLESCH	11,731	0	-
Francis Ebong	10,807	0	-
Deanna Mulligan	10,454	0	-
Daniel Joseph Houston	9,915	+5,300	∞
Neal F Triplett	3,267	0	-
Brian S Posner	2,000	-2,000	0.33
ALEXANDER S MOCZARSKI	1,966	0	-

Individual Transactions

April 30, 2026

Daniel Joseph Houston

Open Market Purchase

Change: +5,300

Price: $94.09

Shares: 9,915

Value: +$498,650

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Daniel Joseph Houston	May 04	Open Market Purchase (P) Market Purchase	9,915	+5,300	$94.09	+$498,650

March 11, 2026

Brian S Posner

Open Market Sale

Change: -3,000

Price: $17.12

Shares: 2,000

Value: -$51,345

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Brian S Posner	Mar 12	Open Market Sale (S) Market Sale	2,000	-3,000	$17.12	-$51,345

March 10, 2026

Nicolas Papadopoulo

Option Exercise/Conversion

Change: +21,930

Price: $18.90

Shares: 893,524

Value: +$414,477

David Gansberg

Option Exercise/Conversion

Change: +10,770

Price: $18.90

Shares: 342,466

Value: +$203,553

David Gansberg

Open Market Sale

Change: -5,907

Price: $96.37

Shares: 336,559

Value: -$569,266

Nicolas Papadopoulo

Open Market Sale

Change: -21,930

Price: $96.31

Shares: 871,594

Value: -$2,112,062

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Nicolas Papadopoulo	Mar 12	Option Exercise/Conversion (M) Compensation/Award	893,524	+21,930	$18.90	+$414,477
David Gansberg	Mar 12	Option Exercise/Conversion (M) Compensation/Award	342,466	+10,770	$18.90	+$203,553
David Gansberg	Mar 12	Open Market Sale (S) Market Sale	336,559	-5,907	$96.37	-$569,266
Nicolas Papadopoulo	Mar 12	Open Market Sale (S) Market Sale	871,594	-21,930	$96.31	-$2,112,062

March 04, 2026

Maamoun Rajeh

Gift

Change: -40,600

Price: $0.00

Shares: 428,378

Value: -$0

David Gansberg

Tax Payment

Change: -12,519

Price: $98.42

Shares: 331,696

Value: -$1,232,119

LOUIS T PETRILLO

Tax Payment

Change: -8,030

Price: $98.42

Shares: 151,490

Value: -$790,312

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Maamoun Rajeh	Mar 06	Gift (G) Non-Market Transfer	428,378	-40,600	$0.00	-$0
David Gansberg	Mar 05	Tax Payment (F) Tax Payment	331,696	-12,519	$98.42	-$1,232,119
LOUIS T PETRILLO	Mar 05	Tax Payment (F) Tax Payment	151,490	-8,030	$98.42	-$790,312

March 03, 2026

LOUIS T PETRILLO

Grant/Award Acquisition

Change: +2,889

Price: $0.00

Shares: 159,520

Value: +$0

Nicolas Papadopoulo

Grant/Award Acquisition

Change: +21,318

Price: $0.00

Shares: 871,594

Value: +$0

Maamoun Rajeh

Grant/Award Acquisition

Change: +6,843

Price: $0.00

Shares: 468,978

Value: +$0

Francois Morin

Grant/Award Acquisition

Change: +5,329

Price: $0.00

Shares: 298,788

Value: +$0

David Gansberg

Grant/Award Acquisition

Change: +6,843

Price: $0.00

Shares: 344,215

Value: +$0

Christine Todd

Grant/Award Acquisition

Change: +3,981

Price: $0.00

Shares: 100,230

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
LOUIS T PETRILLO	Mar 05	Grant/Award Acquisition (A) Compensation/Award	159,520	+2,889	$0.00	+$0
Nicolas Papadopoulo	Mar 05	Grant/Award Acquisition (A) Compensation/Award	871,594	+21,318	$0.00	+$0
Maamoun Rajeh	Mar 05	Grant/Award Acquisition (A) Compensation/Award	468,978	+6,843	$0.00	+$0
Francois Morin	Mar 05	Grant/Award Acquisition (A) Compensation/Award	298,788	+5,329	$0.00	+$0
David Gansberg	Mar 05	Grant/Award Acquisition (A) Compensation/Award	344,215	+6,843	$0.00	+$0
Christine Todd	Mar 05	Grant/Award Acquisition (A) Compensation/Award	100,230	+3,981	$0.00	+$0

February 27, 2026

David Gansberg

Tax Payment

Change: -553

Price: $100.15

Shares: 337,372

Value: -$55,382

LOUIS T PETRILLO

Tax Payment

Change: -312

Price: $100.15

Shares: 156,631

Value: -$31,246

Insider	Filing Date	Transaction	Shares	Change	Price	Value
David Gansberg	Mar 02	Tax Payment (F) Tax Payment	337,372	-553	$100.15	-$55,382
LOUIS T PETRILLO	Mar 02	Tax Payment (F) Tax Payment	156,631	-312	$100.15	-$31,246

February 24, 2026

LOUIS T PETRILLO

Grant/Award Acquisition

Change: +17,136

Price: $0.00

Shares: 156,943

Value: +$0

LOUIS T PETRILLO

Tax Payment

Change: -412

Price: $99.18

Shares: 139,807

Value: -$40,862

Christine Todd

Grant/Award Acquisition

Change: +25,046

Price: $0.00

Shares: 96,249

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
LOUIS T PETRILLO	Feb 26	Grant/Award Acquisition (A) Compensation/Award	156,943	+17,136	$0.00	+$0
LOUIS T PETRILLO	Feb 26	Tax Payment (F) Tax Payment	139,807	-412	$99.18	-$40,862
Christine Todd	Feb 26	Grant/Award Acquisition (A) Compensation/Award	96,249	+25,046	$0.00	+$0