ACGL

insider transactions

ARCH CAPITAL GROUP LTD. — buys & sells by directors, officers and 10% owners (SEC Form 4).

30D 90D 1Y

Net shares · 365d

-78.0K

5.3K buy · 83.3K sell

Net value · 365d

-$6.9M

$498.7K in · $7.4M out

Sentiment · 365d

Net selling

6% buying · 94% selling

Open-market trades · 365d

5.3K buy · 83.3K sell

Net buy / sell volume

Tap or hover the chart for daily net volume. Green = net buying, red = net selling.

All transactions

Other·G
Jun 11, 26

John M Pasquesi

Director

$0

1.0M sh

Own -82%
Sell·S
Jun 3, 26

Brian S Posner

Director

$59.0K

3.0K sh · $19.66

Own -100%
Sell·S
May 11, 26

Brian S Posner

Director

$34.3K

2.0K sh · $17.14

Own -100%
Grant·A
May 5, 26

Neal F Triplett

Director

—

1.3K sh

Own +20%
Grant·A
May 5, 26

Neal F Triplett

Director

—

2.1K sh

Own +45%
Grant·A
May 5, 26

Francis Ebong

Director

—

2.1K sh

Own +19%
Grant·A
May 5, 26

Moira A. Kilcoyne

Director

—

1.3K sh

Own +4%
Grant·A
May 5, 26

Moira A. Kilcoyne

Director

—

2.1K sh

Own +6%
Grant·A
May 5, 26

Daniel Joseph Houston

Director

—

1.3K sh

Own +11%
Grant·A
May 5, 26

Daniel Joseph Houston

Director

—

2.1K sh

Own +21%
Grant·A
May 5, 26

Laurie Goodman

Director

—

2.1K sh

Own +6%
Grant·A
May 5, 26

Alexander S Moczarski

Director

—

2.1K sh

Own +105%
Grant·A
May 5, 26

Eileen A Mallesch

Director

—

2.1K sh

Own +18%
Grant·A
May 5, 26

Brian S Posner

Director

—

2.1K sh

Own +2%
Grant·A
May 5, 26

John M Pasquesi

Director

—

1.9K sh

Own +1%
Grant·A
May 5, 26

John M Pasquesi

Director

—

1.3K sh

Own +0%
Grant·A
May 5, 26

John M Pasquesi

Director

—

2.1K sh

Own New
Grant·A
May 5, 26

John L Bunce JR

Director

—

1.3K sh

Own +0%
Grant·A
May 5, 26

John L Bunce JR

Director

—

2.1K sh

Own +0%
Buy·P
Apr 30, 26

Daniel Joseph Houston

Director

$498.7K

5.3K sh · $94.09

Own +115%
Sell·S
Mar 11, 26

Brian S Posner

Director

$51.3K

3.0K sh · $17.12

Own -60%
Exercise·M
Mar 10, 26

David Gansberg KEY

President, Arch Capital Group

$0

10.8K sh

Own New
Sell·S
Mar 10, 26

David Gansberg KEY

President, Arch Capital Group

$569.3K

5.9K sh · $96.37

Own -2%
Exercise·M
Mar 10, 26

David Gansberg KEY

President, Arch Capital Group

$203.6K

10.8K sh · $18.90

Own +3%
Exercise·M
Mar 10, 26

Nicolas Papadopoulo KEY

CEO

$0

21.9K sh

Own New
Sell·S
Mar 10, 26

Nicolas Papadopoulo KEY

CEO

$2.1M

21.9K sh · $96.31

Own -2%
Exercise·M
Mar 10, 26

Nicolas Papadopoulo KEY

CEO

$414.5K

21.9K sh · $18.90

Own +3%
Other·F
Mar 4, 26

David Gansberg KEY

President, Arch Capital Group

$1.2M

12.5K sh · $98.42

Own -4%
Other·F
Mar 4, 26

Louis T Petrillo

Officer of Subsidiary

$790.3K

8.0K sh · $98.42

Own -5%
Other·G
Mar 4, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

40.6K sh

Own -9%
Grant·A
Mar 3, 26

Christine Todd

Chief Investment Officer

$0

6.3K sh

Own New
Grant·A
Mar 3, 26

Christine Todd

Chief Investment Officer

$0

14.2K sh

Own New
Grant·A
Mar 3, 26

Christine Todd

Chief Investment Officer

$0

4.0K sh

Own +4%
Grant·A
Mar 3, 26

David Gansberg KEY

President, Arch Capital Group

$0

24.5K sh

Own New
Grant·A
Mar 3, 26

David Gansberg KEY

President, Arch Capital Group

$0

6.8K sh

Own +2%
Grant·A
Mar 3, 26

Francois Morin KEY

CFO and Treasurer

$0

19.1K sh

Own New
Grant·A
Mar 3, 26

Francois Morin KEY

CFO and Treasurer

$0

5.3K sh

Own +2%
Grant·A
Mar 3, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

24.5K sh

Own New
Grant·A
Mar 3, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

6.8K sh

Own +1%
Grant·A
Mar 3, 26

Nicolas Papadopoulo KEY

CEO

$0

76.2K sh

Own New
Grant·A
Mar 3, 26

Nicolas Papadopoulo KEY

CEO

$0

21.3K sh

Own +3%
Grant·A
Mar 3, 26

Louis T Petrillo

Officer of Subsidiary

$0

10.3K sh

Own New
Grant·A
Mar 3, 26

Louis T Petrillo

Officer of Subsidiary

$0

2.9K sh

Own +2%
Other·F
Feb 27, 26

David Gansberg KEY

President, Arch Capital Group

$55.4K

553 sh · $100.15

Own -0%
Other·F
Feb 27, 26

Louis T Petrillo

Officer of Subsidiary

$31.2K

312 sh · $100.15

Own -0%
Grant·A
Feb 24, 26

Christine Todd

Chief Investment Officer

$0

25.0K sh

Own +35%
Grant·A
Feb 24, 26

David Gansberg KEY

President, Arch Capital Group

$0

28.5K sh

Own +9%
Other·F
Feb 24, 26

David Gansberg KEY

President, Arch Capital Group

$50.5K

509 sh · $99.18

Own -0%
Grant·A
Feb 24, 26

Francois Morin KEY

CFO and Treasurer

$0

27.4K sh

Own +10%
Grant·A
Feb 24, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

28.5K sh

Own +7%
Grant·A
Feb 24, 26

Nicolas Papadopoulo KEY

CEO

$0

46.7K sh

Own +6%
Grant·A
Feb 24, 26

Louis T Petrillo

Officer of Subsidiary

$0

17.1K sh

Own +12%
Other·F
Feb 24, 26

Louis T Petrillo

Officer of Subsidiary

$40.9K

412 sh · $99.18

Own -0%
Exercise·M
Feb 11, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

31.5K sh

Own New
Exercise·M
Feb 11, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$0

15.9K sh

Own New
Sell·S
Feb 11, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$4.6M

47.4K sh · $96.12

Own -10%
Exercise·M
Feb 11, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$854.6K

31.5K sh · $27.13

Own +7%
Exercise·M
Feb 11, 26

Maamoun Rajeh KEY

President, Arch Capital Group

$431.5K

15.9K sh · $27.09

Own +4%

Date▾	Insider	Role	Type	Shares	Own Δ	Price	Value
Jun 11, 2026	John M Pasquesi	Director	Other G	1.0M	-82%	—	$0
Jun 3, 2026	Brian S Posner	Director	Sell S	3.0K	-100%	$19.66	$59.0K
May 11, 2026	Brian S Posner	Director	Sell S	2.0K	-100%	$17.14	$34.3K
May 5, 2026	Neal F Triplett	Director	Grant A	1.3K	+20%	—	—
May 5, 2026	Neal F Triplett	Director	Grant A	2.1K	+45%	—	—
May 5, 2026	Francis Ebong	Director	Grant A	2.1K	+19%	—	—
May 5, 2026	Moira A. Kilcoyne	Director	Grant A	1.3K	+4%	—	—
May 5, 2026	Moira A. Kilcoyne	Director	Grant A	2.1K	+6%	—	—
May 5, 2026	Daniel Joseph Houston	Director	Grant A	1.3K	+11%	—	—
May 5, 2026	Daniel Joseph Houston	Director	Grant A	2.1K	+21%	—	—
May 5, 2026	Laurie Goodman	Director	Grant A	2.1K	+6%	—	—
May 5, 2026	Alexander S Moczarski	Director	Grant A	2.1K	+105%	—	—
May 5, 2026	Eileen A Mallesch	Director	Grant A	2.1K	+18%	—	—
May 5, 2026	Brian S Posner	Director	Grant A	2.1K	+2%	—	—
May 5, 2026	John M Pasquesi	Director	Grant A	1.9K	+1%	—	—
May 5, 2026	John M Pasquesi	Director	Grant A	1.3K	+0%	—	—
May 5, 2026	John M Pasquesi	Director	Grant A	2.1K	New	—	—
May 5, 2026	John L Bunce JR	Director	Grant A	1.3K	+0%	—	—
May 5, 2026	John L Bunce JR	Director	Grant A	2.1K	+0%	—	—
Apr 30, 2026	Daniel Joseph Houston	Director	Buy P	5.3K	+115%	$94.09	$498.7K
Mar 11, 2026	Brian S Posner	Director	Sell S	3.0K	-60%	$17.12	$51.3K
Mar 10, 2026	David Gansberg KEY	President, Arch Capital Group	Exercise M	10.8K	New	—	$0
Mar 10, 2026	David Gansberg KEY	President, Arch Capital Group	Sell S	5.9K	-2%	$96.37	$569.3K
Mar 10, 2026	David Gansberg KEY	President, Arch Capital Group	Exercise M	10.8K	+3%	$18.90	$203.6K
Mar 10, 2026	Nicolas Papadopoulo KEY	CEO	Exercise M	21.9K	New	—	$0
Mar 10, 2026	Nicolas Papadopoulo KEY	CEO	Sell S	21.9K	-2%	$96.31	$2.1M
Mar 10, 2026	Nicolas Papadopoulo KEY	CEO	Exercise M	21.9K	+3%	$18.90	$414.5K
Mar 4, 2026	David Gansberg KEY	President, Arch Capital Group	Other F	12.5K	-4%	$98.42	$1.2M
Mar 4, 2026	Louis T Petrillo	Officer of Subsidiary	Other F	8.0K	-5%	$98.42	$790.3K
Mar 4, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Other G	40.6K	-9%	—	$0
Mar 3, 2026	Christine Todd	Chief Investment Officer	Grant A	6.3K	New	—	$0
Mar 3, 2026	Christine Todd	Chief Investment Officer	Grant A	14.2K	New	—	$0
Mar 3, 2026	Christine Todd	Chief Investment Officer	Grant A	4.0K	+4%	—	$0
Mar 3, 2026	David Gansberg KEY	President, Arch Capital Group	Grant A	24.5K	New	—	$0
Mar 3, 2026	David Gansberg KEY	President, Arch Capital Group	Grant A	6.8K	+2%	—	$0
Mar 3, 2026	Francois Morin KEY	CFO and Treasurer	Grant A	19.1K	New	—	$0
Mar 3, 2026	Francois Morin KEY	CFO and Treasurer	Grant A	5.3K	+2%	—	$0
Mar 3, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Grant A	24.5K	New	—	$0
Mar 3, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Grant A	6.8K	+1%	—	$0
Mar 3, 2026	Nicolas Papadopoulo KEY	CEO	Grant A	76.2K	New	—	$0
Mar 3, 2026	Nicolas Papadopoulo KEY	CEO	Grant A	21.3K	+3%	—	$0
Mar 3, 2026	Louis T Petrillo	Officer of Subsidiary	Grant A	10.3K	New	—	$0
Mar 3, 2026	Louis T Petrillo	Officer of Subsidiary	Grant A	2.9K	+2%	—	$0
Feb 27, 2026	David Gansberg KEY	President, Arch Capital Group	Other F	553	-0%	$100.15	$55.4K
Feb 27, 2026	Louis T Petrillo	Officer of Subsidiary	Other F	312	-0%	$100.15	$31.2K
Feb 24, 2026	Christine Todd	Chief Investment Officer	Grant A	25.0K	+35%	—	$0
Feb 24, 2026	David Gansberg KEY	President, Arch Capital Group	Grant A	28.5K	+9%	—	$0
Feb 24, 2026	David Gansberg KEY	President, Arch Capital Group	Other F	509	-0%	$99.18	$50.5K
Feb 24, 2026	Francois Morin KEY	CFO and Treasurer	Grant A	27.4K	+10%	—	$0
Feb 24, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Grant A	28.5K	+7%	—	$0
Feb 24, 2026	Nicolas Papadopoulo KEY	CEO	Grant A	46.7K	+6%	—	$0
Feb 24, 2026	Louis T Petrillo	Officer of Subsidiary	Grant A	17.1K	+12%	—	$0
Feb 24, 2026	Louis T Petrillo	Officer of Subsidiary	Other F	412	-0%	$99.18	$40.9K
Feb 11, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Exercise M	31.5K	New	—	$0
Feb 11, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Exercise M	15.9K	New	—	$0
Feb 11, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Sell S	47.4K	-10%	$96.12	$4.6M
Feb 11, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Exercise M	31.5K	+7%	$27.13	$854.6K
Feb 11, 2026	Maamoun Rajeh KEY	President, Arch Capital Group	Exercise M	15.9K	+4%	$27.09	$431.5K

About ACGL insider trading

This page tracks insider transactions for ARCH CAPITAL GROUP LTD. (ACGL) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.