Arch Capital Group insider activity
What the executives and directors of Arch Capital Group actually did with their own shares, decoded from their SEC Form 4 filings. Each figure says the stretch of time it covers.
−$29M
net open-market flow, 12 m
1 open-market buy, 12 m
0%
of sale value on 10b5-1 plans, 12 m
144 days since an insider bought, whole record
The tape: three years of insider trades
Open-market buy
Discretionary sale
Planned sale (10b5-1)
Reported-price path
Routine
Every marker sits at the price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the grey strip is the routine flow (grants, vestings, tax withholding and gifts) that a headline gets wrong by counting it as selling.
The 100 routine events on the chart, as a list
| Date | Insider | Shares |
|---|---|---|
| Aug 18, 2026 | Morin Francois | 11K |
| Jun 11, 2026 | PASQUESI JOHN M | 2.0M |
| May 5, 2026 | BUNCE JOHN L JR | 3,398 |
| May 5, 2026 | PASQUESI JOHN M | 5,256 |
| May 5, 2026 | Houston Daniel Joseph | 3,398 |
| May 5, 2026 | Posner Brian S | 2,071 |
| May 5, 2026 | MALLESCH EILEEN A | 2,071 |
| May 5, 2026 | MOCZARSKI ALEXANDER S | 2,071 |
| May 5, 2026 | Goodman Laurie | 2,071 |
| May 5, 2026 | KILCOYNE MOIRA A. | 3,398 |
| May 5, 2026 | Ebong Francis | 2,071 |
| May 5, 2026 | Triplett Neal F | 3,398 |
| Mar 10, 2026 | Papadopoulo Nicolas | 22K |
| Mar 10, 2026 | Gansberg David | 11K |
| Mar 4, 2026 | PETRILLO LOUIS T | 11K |
| Mar 4, 2026 | Rajeh Maamoun | 88K |
| Mar 4, 2026 | Gansberg David | 19K |
| Mar 3, 2026 | Papadopoulo Nicolas | 21K |
| Mar 3, 2026 | Morin Francois | 5,329 |
| Mar 3, 2026 | Todd Christine | 3,981 |
| Feb 27, 2026 | PETRILLO LOUIS T | 18K |
| Feb 27, 2026 | Gansberg David | 30K |
| Feb 24, 2026 | Papadopoulo Nicolas | 47K |
| Feb 24, 2026 | Rajeh Maamoun | 29K |
| Feb 24, 2026 | Morin Francois | 27K |
| Feb 24, 2026 | Todd Christine | 25K |
| Feb 11, 2026 | Rajeh Maamoun | 47K |
| Dec 12, 2025 | PASQUESI JOHN M | 53K |
| Dec 10, 2025 | PETRILLO LOUIS T | 56 |
| Nov 19, 2025 | Gansberg David | 9,494 |
| Oct 30, 2025 | Vollaro John D | 1,315 |
| Aug 5, 2025 | Vollaro John D | 390K |
| May 16, 2025 | Morin Francois | 13K |
| May 9, 2025 | PETRILLO LOUIS T | 17K |
| May 7, 2025 | BUNCE JOHN L JR | 2,912 |
| May 7, 2025 | PASQUESI JOHN M | 2,912 |
| May 7, 2025 | Houston Daniel Joseph | 2,912 |
| May 7, 2025 | Posner Brian S | 1,564 |
| May 7, 2025 | MALLESCH EILEEN A | 1,564 |
| May 7, 2025 | MOCZARSKI ALEXANDER S | 1,564 |
| May 7, 2025 | Goodman Laurie | 1,564 |
| May 7, 2025 | KILCOYNE MOIRA A. | 2,912 |
| May 7, 2025 | Ebong Francis | 1,564 |
| May 7, 2025 | Triplett Neal F | 2,912 |
| May 2, 2025 | Papadopoulo Nicolas | 11K |
| Mar 5, 2025 | PETRILLO LOUIS T | 34K |
| Mar 4, 2025 | Papadopoulo Nicolas | 16K |
| Mar 4, 2025 | Rajeh Maamoun | 7,484 |
| Mar 4, 2025 | Morin Francois | 4,789 |
| Mar 4, 2025 | Gansberg David | 21K |
| Mar 4, 2025 | Todd Christine | 3,744 |
| Feb 27, 2025 | PETRILLO LOUIS T | 23K |
| Feb 27, 2025 | Gansberg David | 35K |
| Feb 27, 2025 | Papadopoulo Nicolas | 56K |
| Feb 27, 2025 | Rajeh Maamoun | 34K |
| Feb 27, 2025 | Morin Francois | 31K |
| Feb 27, 2025 | Todd Christine | 23K |
| Feb 4, 2025 | MOCZARSKI ALEXANDER S | 402 |
| Dec 12, 2024 | Vollaro John D | 10K |
| Dec 10, 2024 | PETRILLO LOUIS T | 48 |
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
The chart, in numbers
| Flow | Shares |
|---|---|
| From holdings | 1.1M |
| Granted | 250K |
| Vested / exercised | 91K |
| Bought on market | 5,300 |
| Withheld for tax | 32K |
| Discretionary sales | 315K |
| Gifts | 1.1M |
Skin in the game
Directly held shares as reported after each trade, indexed to 100 at the start of the window, up to five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
The chart, in numbers
| Insider | Start of the window | Latest reported | Indexed, start = 100 |
|---|---|---|---|
| BUNCE JOHN L JR | 2.1M | 1.6M | 74.4 |
| Papadopoulo Nicolas | 802K | 872K | 108.7 |
| Rajeh Maamoun | 398K | 428K | 107.6 |
| Gansberg David | 155K | 337K | 217.7 |
Who holds what
the 14 largest holdings of 19| Insider | Role | Shares held | Buys 12 m | Sales 12 m | 12 m | Last trade |
|---|---|---|---|---|---|---|
| GRANDISSON MARC CEO Last trade Nov 6, 2023 | CEO | 2.7M | – | – | Nov 6, 2023 | |
| BUNCE JOHN L JR Last trade Nov 15, 2022 | Director | 1.6M | – | – | Nov 15, 2022 | |
| Papadopoulo Nicolas CEO Last trade Mar 10, 2026 | CEO | 894K | – | $2.1M | net selling over the year: 0 months buying, 1 month selling | Mar 10, 2026 |
| Rajeh Maamoun President, Arch Capital Group Last trade Feb 11, 2026 | Officer | 469K | – | $4.6M | net selling over the year: 0 months buying, 1 month selling | Feb 11, 2026 |
| Gansberg David President, Arch Capital Group Last trade Mar 10, 2026 | Officer | 342K | – | $569K | net selling over the year: 0 months buying, 1 month selling | Mar 10, 2026 |
| Vollaro John D Last trade Nov 18, 2019 | Director | 286K | – | – | Nov 18, 2019 | |
| Morin Francois EVP and CFO Last trade Aug 18, 2026 | CFO | 278K | – | $1.9M | net selling over the year: 0 months buying, 2 months selling | Aug 18, 2026 |
| PASQUESI JOHN M Last trade Dec 15, 2025 | Director | 217K | – | $20M | net selling over the year: 0 months buying, 1 month selling | Dec 15, 2025 |
| PETRILLO LOUIS T Officer of Subsidiary Last trade May 9, 2025 | Officer | 152K | – | – | May 9, 2025 | |
| Todd Christine Chief Investment Officer | Officer | 100K | – | – | – | |
| Goodman Laurie | Director | 38K | – | – | – | |
| Sunshine Eugene S | Director | 35K | – | – | – | |
| KILCOYNE MOIRA A. | Director | 35K | – | – | – | |
| MALLESCH EILEEN A | Director | 14K | – | – | – |
Open-market trade log
the 60 most recent of 872| Date | Insider | Type | Shares | Price | Value | Since trade | Filed |
|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | Morin Francois (CFO) 11K shares $99.32 +0.0% since trade filed Aug 20, 2026 | Discretionary sale | 11K | $99.32 | $1.1M | +0.0% | Aug 20, 2026 |
| Jun 3, 2026 | Posner Brian S (Director) 3,000 shares $19.66 +405.2% since trade filed Jun 4, 2026 | Discretionary sale | 3,000 | $19.66 | $59K | +405.2% | Jun 4, 2026 |
| May 11, 2026 | Posner Brian S (Director) 2,000 shares $17.14 +479.4% since trade filed May 12, 2026 | Discretionary sale | 2,000 | $17.14 | $34K | +479.4% | May 12, 2026 |
| Apr 30, 2026 | Houston Daniel Joseph (Director) 5,300 shares $94.09 +5.6% since trade filed May 4, 2026 | Open-market buy | 5,300 | $94.09 | $499K | +5.6% | May 4, 2026 |
| Mar 11, 2026 | Posner Brian S (Director) 3,000 shares $17.12 +480.1% since trade filed Mar 12, 2026 | Discretionary sale | 3,000 | $17.12 | $51K | +480.1% | Mar 12, 2026 |
| Mar 10, 2026 | Papadopoulo Nicolas (CEO) 22K shares $96.31 +3.1% since trade filed Mar 12, 2026 | Discretionary sale | 22K | $96.31 | $2.1M | +3.1% | Mar 12, 2026 |
| Mar 10, 2026 | Gansberg David (Officer) 5,907 shares $96.37 +3.1% since trade filed Mar 12, 2026 | Discretionary sale | 5,907 | $96.37 | $569K | +3.1% | Mar 12, 2026 |
| Feb 11, 2026 | Rajeh Maamoun (Officer) 47K shares $96.12 +3.3% since trade filed Feb 13, 2026 | Discretionary sale | 47K | $96.12 | $4.6M | +3.3% | Feb 13, 2026 |
| Dec 15, 2025 | PASQUESI JOHN M (Director) 8,800 shares $94.17 +5.5% since trade filed Dec 16, 2025 | Discretionary sale | 8,800 | $94.17 | $829K | +5.5% | Dec 16, 2025 |
| Dec 12, 2025 | PASQUESI JOHN M (Director) 29K shares $93.81 +5.9% since trade filed Dec 16, 2025 | Discretionary sale | 29K | $93.81 | $2.7M | +5.9% | Dec 16, 2025 |
| Dec 12, 2025 | PASQUESI JOHN M (Director) 175K shares $93.91 +5.8% since trade filed Dec 16, 2025 | Discretionary sale | 175K | $93.91 | $16M | +5.8% | Dec 16, 2025 |
| Nov 28, 2025 | Morin Francois (CFO) 8,000 shares $94.62 +5.0% since trade filed Dec 2, 2025 | Discretionary sale | 8,000 | $94.62 | $757K | +5.0% | Dec 2, 2025 |
| Aug 22, 2025 | Rajeh Maamoun (Officer) 10K shares $94.15 +5.5% since trade filed Aug 25, 2025 | Discretionary sale | 10K | $94.15 | $942K | +5.5% | Aug 25, 2025 |
| Aug 1, 2025 | Posner Brian S (Director) 1,000 shares $17.34 +472.8% since trade filed Aug 4, 2025 | Open-market buy | 1,000 | $17.34 | $17K | +472.8% | Aug 4, 2025 |
| May 16, 2025 | Morin Francois (CFO) 13K shares $94.58 +5.0% since trade filed May 20, 2025 | Discretionary sale | 13K | $94.58 | $1.2M | +5.0% | May 20, 2025 |
| May 13, 2025 | PASQUESI JOHN M (Director) 24K shares $94.72 +4.9% since trade filed May 14, 2025 | Discretionary sale | 24K | $94.72 | $2.3M | +4.9% | May 14, 2025 |
| May 12, 2025 | PASQUESI JOHN M (Director) 75K shares $94.01 +5.7% since trade filed May 14, 2025 | Discretionary sale | 75K | $94.01 | $7.1M | +5.7% | May 14, 2025 |
| May 9, 2025 | PETRILLO LOUIS T (Officer) 17K shares $94.53 +5.1% since trade filed May 12, 2025 | Discretionary sale | 17K | $94.53 | $1.6M | +5.1% | May 12, 2025 |
| May 2, 2025 | Papadopoulo Nicolas (CEO) 7,636 shares $92.48 +7.4% since trade filed May 6, 2025 | Discretionary sale | 7,636 | $92.48 | $706K | +7.4% | May 6, 2025 |
| Mar 5, 2025 | PETRILLO LOUIS T (Officer) 12K shares $91.00 +9.1% since trade filed Mar 6, 2025 | Discretionary sale | 12K | $91.00 | $1.1M | +9.1% | Mar 6, 2025 |
| Mar 4, 2025 | PETRILLO LOUIS T (Officer) 9,400 shares $92.73 +7.1% since trade filed Mar 6, 2025 | Discretionary sale | 9,400 | $92.73 | $872K | +7.1% | Mar 6, 2025 |
| Aug 16, 2024 | Morin Francois (CFO) 11K shares $102.46 −3.1% since trade filed Aug 19, 2024 | Discretionary sale | 11K | $102.46 | $1.2M | −3.1% | Aug 19, 2024 |
| May 6, 2024 | Gansberg David (CEO) 10K shares $96.64 +2.8% since trade filed May 7, 2024 | Discretionary sale | 10K | $96.64 | $966K | +2.8% | May 7, 2024 |
| Mar 7, 2024 | Papadopoulo Nicolas (Officer) 60K shares $87.52 +13.5% since trade filed Mar 8, 2024 | Discretionary sale | 60K | $87.52 | $5.3M | +13.5% | Mar 8, 2024 |
| Mar 7, 2024 | Morin Francois (CFO) 26K shares $87.47 +13.6% since trade filed Mar 7, 2024 | Discretionary sale | 26K | $87.47 | $2.2M | +13.6% | Mar 7, 2024 |
| Mar 5, 2024 | Rajeh Maamoun (CEO) 50K shares $87.48 +13.5% since trade filed Mar 7, 2024 | Discretionary sale | 50K | $87.48 | $4.4M | +13.5% | Mar 7, 2024 |
| Nov 22, 2023 | Papadopoulo Nicolas (Officer) 60K shares $85.80 +15.8% since trade filed Nov 27, 2023 | Discretionary sale | 60K | $85.80 | $5.1M | +15.8% | Nov 27, 2023 |
| Nov 6, 2023 | GRANDISSON MARC (CEO) 103K shares $85.01 +16.8% since trade filed Nov 7, 2023 | Discretionary sale | 103K | $85.01 | $8.8M | +16.8% | Nov 7, 2023 |
| Nov 3, 2023 | GRANDISSON MARC (CEO) 247K shares $85.62 +16.0% since trade filed Nov 7, 2023 | Discretionary sale | 247K | $85.62 | $21M | +16.0% | Nov 7, 2023 |
| Nov 2, 2023 | Gansberg David (CEO) 7,350 shares $89.49 +11.0% since trade filed Nov 6, 2023 | Discretionary sale | 7,350 | $89.49 | $658K | +11.0% | Nov 6, 2023 |
| May 19, 2023 | GRANDISSON MARC (CEO) 200K shares $76.10 +30.5% since trade filed May 23, 2023 | Discretionary sale | 200K | $76.10 | $15M | +30.5% | May 23, 2023 |
| May 10, 2023 | PETRILLO LOUIS T (Officer) 15K shares $76.79 +29.3% since trade filed May 10, 2023 | Discretionary sale | 15K | $76.79 | $1.2M | +29.3% | May 10, 2023 |
| May 9, 2023 | Rajeh Maamoun (CEO) 40K shares $76.41 +30.0% since trade filed May 10, 2023 | Discretionary sale | 40K | $76.41 | $3.1M | +30.0% | May 10, 2023 |
| May 8, 2023 | Morin Francois (CFO) 10K shares $76.11 +30.5% since trade filed May 10, 2023 | Discretionary sale | 10K | $76.11 | $761K | +30.5% | May 10, 2023 |
| May 3, 2023 | Papadopoulo Nicolas (Officer) 70K shares $75.48 +31.6% since trade filed May 5, 2023 | Discretionary sale | 70K | $75.48 | $5.3M | +31.6% | May 5, 2023 |
| May 1, 2023 | Rajeh Maamoun (CEO) 16K shares $76.07 +30.6% since trade filed May 3, 2023 | Discretionary sale | 16K | $76.07 | $1.2M | +30.6% | May 3, 2023 |
| May 1, 2023 | Rajeh Maamoun (CEO) 20K shares $76.07 +30.6% since trade filed May 3, 2023 | Discretionary sale | 20K | $76.07 | $1.5M | +30.6% | May 3, 2023 |
| Mar 2, 2023 | Papadopoulo Nicolas (Officer) 30K shares $70.16 +41.6% since trade filed Mar 6, 2023 | Discretionary sale | 30K | $70.16 | $2.1M | +41.6% | Mar 6, 2023 |
| Feb 21, 2023 | Morin Francois (CFO) 16K shares $67.61 +46.9% since trade filed Feb 21, 2023 | Discretionary sale | 16K | $67.61 | $1.1M | +46.9% | Feb 21, 2023 |
| Feb 15, 2023 | PASQUESI JOHN M (Director) 26K shares $67.01 +48.2% since trade filed Feb 17, 2023 | Discretionary sale | 26K | $67.01 | $1.8M | +48.2% | Feb 17, 2023 |
| Nov 15, 2022 | BUNCE JOHN L JR (Director) 250K shares filed Nov 17, 2022 | Discretionary sale | 250K | – | $0 | – | Nov 17, 2022 |
| Nov 10, 2022 | Gansberg David (CEO) 31K shares filed Nov 14, 2022 | Discretionary sale | 31K | – | $0 | – | Nov 14, 2022 |
| Nov 4, 2022 | Papadopoulo Nicolas (Officer) 36K shares filed Nov 8, 2022 | Discretionary sale | 36K | – | $0 | – | Nov 8, 2022 |
| Oct 31, 2022 | Rajeh Maamoun (CEO) 50K shares $57.09 +74.0% since trade filed Nov 2, 2022 | Discretionary sale | 50K | $57.09 | $2.9M | +74.0% | Nov 2, 2022 |
| Oct 28, 2022 | Posner Brian S (Director) 2,000 shares $17.60 +464.3% since trade filed Nov 1, 2022 | Open-market buy | 2,000 | $17.60 | $35K | +464.3% | Nov 1, 2022 |
| Aug 19, 2022 | BUNCE JOHN L JR (Director) 112K shares filed Aug 19, 2022 | Discretionary sale | 112K | – | $0 | – | Aug 19, 2022 |
| Aug 19, 2022 | Rajeh Maamoun (CEO) 40K shares filed Aug 22, 2022 | Discretionary sale | 40K | – | $0 | – | Aug 22, 2022 |
| Aug 18, 2022 | BUNCE JOHN L JR (Director) 113K shares filed Aug 19, 2022 | Discretionary sale | 113K | – | $0 | – | Aug 19, 2022 |
| Aug 17, 2022 | BUNCE JOHN L JR (Director) 75K shares filed Aug 19, 2022 | Discretionary sale | 75K | – | $0 | – | Aug 19, 2022 |
| Aug 15, 2022 | PETRILLO LOUIS T (Officer) 7,638 shares $46.68 +112.8% since trade filed Aug 15, 2022 | Discretionary sale | 7,638 | $46.68 | $357K | +112.8% | Aug 15, 2022 |
| Aug 12, 2022 | Morin Francois (CFO) 17K shares $46.92 +111.7% since trade filed Aug 12, 2022 | Discretionary sale | 17K | $46.92 | $792K | +111.7% | Aug 12, 2022 |
| Aug 11, 2022 | PETRILLO LOUIS T (Officer) 16K shares $45.83 +116.7% since trade filed Aug 15, 2022 | Discretionary sale | 16K | $45.83 | $734K | +116.7% | Aug 15, 2022 |
| Jun 7, 2022 | Rajeh Maamoun (CEO) 12K shares $47.06 +111.1% since trade filed Jun 7, 2022 | Discretionary sale | 12K | $47.06 | $576K | +111.1% | Jun 7, 2022 |
| Apr 29, 2022 | Posner Brian S (Director) 2,000 shares $19.23 +416.5% since trade filed May 2, 2022 | Open-market buy | 2,000 | $19.23 | $38K | +416.5% | May 2, 2022 |
| Mar 14, 2022 | Morin Francois (CFO) 12K shares $46.36 +114.2% since trade filed Mar 15, 2022 | Discretionary sale | 12K | $46.36 | $573K | +114.2% | Mar 15, 2022 |
| Nov 18, 2021 | PETRILLO LOUIS T (Officer) 13K shares $42.00 +136.5% since trade filed Nov 18, 2021 | Discretionary sale | 13K | $42.00 | $528K | +136.5% | Nov 18, 2021 |
| Nov 16, 2021 | Morin Francois (CFO) 17K shares $43.24 +129.7% since trade filed Nov 18, 2021 | Discretionary sale | 17K | $43.24 | $733K | +129.7% | Nov 18, 2021 |
| Nov 12, 2021 | Rajeh Maamoun (CEO) 32K shares $42.15 +135.6% since trade filed Nov 12, 2021 | Discretionary sale | 32K | $42.15 | $1.3M | +135.6% | Nov 12, 2021 |
| Nov 11, 2021 | PASQUESI JOHN M (Director) 48K shares $41.23 +140.9% since trade filed Nov 12, 2021 | Open-market buy | 48K | $41.23 | $2.0M | +140.9% | Nov 12, 2021 |
| Nov 11, 2021 | PASQUESI JOHN M (Director) 437K shares $41.23 +140.9% since trade filed Nov 12, 2021 | Open-market buy | 437K | $41.23 | $18M | +140.9% | Nov 12, 2021 |
“Since trade” compares with the latest insider-implied price, not a market quote: these pages are built from filings alone. A role here is the one on that day's Form 4, so somebody promoted since appears under both titles.
Filing hygiene
121 Forms 4, 3 years
2 filed late
1 amendments
1.9 avg. days to file
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.