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Insider Trading Intelligence
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NP

Nicolas Papadopoulo

ACGL
CEO · ARCH CAPITAL GROUP LTD. · CIK 0001345284
FILING MIX · LIFETIME68%/32%
BUYS
25
SELLS
12
TOTAL VALUE
$21.60M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
871,594
AVG SELL PX
$82.69
TRADE KIND
SHOWING 37 / 37
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
7 backtested trades · 8 horizons · 4 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Nicolas Papadopoulo, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d7+57.14%-0.23%+0.58%-0.81%-0.92%—
14d7+57.14%-1.82%+1.37%-3.19%-3.80%—
30d7+42.86%-0.78%+3.55%-4.33%-2.11%—
60d7+57.14%+2.23%+5.84%-3.62%-10.04%—
90d7+57.14%+1.29%+9.03%-7.74%-10.29%—
180d7(1 pending)+16.67%+14.66%+12.04%+2.62%+3.11%—
1y7(1 pending)+0.00%+19.86%+24.41%-4.54%-8.73%—
2y7(2 pending)+0.00%+27.77%+46.51%-18.74%-21.82%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ACGL · 871,594 shares · as of Mar 10, 2026
0223,381446,762670,143893,524202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 25 buys / 12 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASE
CEO
21,930$18.90$414.5K893,524Mar 10, 2026Mar 12, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
21,930——0Mar 10, 2026Mar 12, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
21,930$96.31$2.11M871,594Mar 10, 2026Mar 12, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
76,243——76,243Mar 3, 2026Mar 5, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
21,318——871,594Mar 3, 2026Mar 5, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
46,674——850,276Feb 24, 2026Feb 26, 2026 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASE
CEO
9,213$15.84$145.9K804,931May 2, 2025May 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
9,213——0May 2, 2025May 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
1,577$92.48$145.8K803,354May 2, 2025May 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
7,636$92.48$706.2K795,718May 2, 2025May 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
1,577$92.48$145.8K803,354May 2, 2025May 8, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASE
CEO
9,213$15.84$145.9K804,931May 2, 2025May 8, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
CEO
9,213——0May 2, 2025May 8, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
15,848——795,718Mar 4, 2025Mar 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
56,073——56,073Mar 4, 2025Mar 6, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
55,532——779,870Feb 27, 2025Mar 3, 2025 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
72,108——724,338Nov 19, 2024Nov 21, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
562,867——562,867Nov 19, 2024Nov 21, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
OFFICER OF SUBSIDIARY
60,000$87.52$5.25M651,931Mar 7, 2024Mar 8, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
27,833——27,833Feb 27, 2024Feb 29, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
7,842——711,931Feb 27, 2024Feb 29, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
73,702——704,089Feb 23, 2024Feb 27, 2024 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
OFFICER OF SUBSIDIARY
60,000$85.80$5.15M630,387Nov 22, 2023Nov 27, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
OFFICER OF SUBSIDIARY
70,000$75.48$5.28M689,970May 3, 2023May 4, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
OFFICER OF SUBSIDIARY
30,000$70.16$2.10M759,970Mar 2, 2023Mar 6, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
31,264——31,264Feb 24, 2023Feb 28, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
8,486——789,970Feb 24, 2023Feb 28, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
14,703——781,484Feb 24, 2023Feb 28, 2023 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
SALE
OFFICER OF SUBSIDIARY
35,625——766,178Nov 4, 2022Nov 8, 2022 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
10,097——801,803Feb 25, 2022Feb 28, 2022 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
46,162——791,706Feb 25, 2022Feb 28, 2022 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
45,695——45,695Feb 25, 2022Feb 28, 2022 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
65,202——65,202Feb 26, 2021Mar 1, 2021 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
13,400——693,083Feb 26, 2021Mar 1, 2021 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
51,696——744,779Feb 26, 2021Mar 2, 2021 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
46,015——46,015Feb 27, 2020Feb 29, 2020 ↗View →
ACGL
ARCH CAPITAL GROUP LTD.
PURCHASEGRANT
Stock grant
7,072——678,809Feb 27, 2020Feb 29, 2020 ↗View →
Other insiders · ACGL
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About this filer
CIK 0001345284
ROLE
CEO
PRIMARY
ACGL
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001345284DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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