CapitolRadar tracks every publicly disclosed ACGL trade by US congress members and corporate insiders: 11 disclosed trades (6 buys, 5 sells) by 2 tracked traders, from 2021-01-13 to 2026-09-04. Updated daily from official filings.
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Arch Capital Group Ltd. (ACGL) — Financial Services · Insurance - Diversified, market cap about $34.0B.
CapitolRadar analysis
10 trades split 6 buys to 4 sells
ACGL’s tracked record contains 10 trades by 2 distinct traders from January 13, 2021 through May 1, 2026. Buys account for 6 transactions, compared with 4 sells. The activity is therefore buy-leaning by transaction count, but the sample is small and does not support broad conclusions about congressional sentiment toward Arch Capital Group or the diversified insurance industry.
The series began with 3 buys in 2021 Q1, the only quarter containing more than one tracked ACGL trade. The remaining 7 transactions were spread one per quarter across 2021 Q4, 2022 Q2, 2022 Q3, 2023 Q1, 2024 Q1, 2025 Q3 and 2026 Q2. The single trades in 2021 Q4 through 2023 Q1 were sells, while the entries in 2024 Q1, 2025 Q3 and 2026 Q2 were buys.
2 buyers account for every recorded purchase
Ro Khanna and Michael McCaul each recorded 3 ACGL buys, together accounting for all 6 purchases in the dataset. Khanna’s most recent buy was dated May 1, 2026. McCaul’s most recent buy was dated January 14, 2021. With only 3 purchases attributed to each buyer, recency differs substantially, and neither individual history is large enough to establish a durable trading pattern.
6 shared holdings appear in both buyers’ activity
Both tracked ACGL buyers also bought TER, BSX, DHR, MA, WDAY and META. This overlap shows that each of the 2 buyers had purchases in the same six additional tickers; it does not by itself establish a common strategy, timing relationship or motive.
Congressional transaction disclosures can lag the underlying trade by 45 days, so reported activity may not be timely. Disclosed transaction amounts are generally presented as ranges, and any amount-based totals or comparisons derived from those ranges are estimates. No transaction amounts are provided here, and all counts should be read in light of the small 10-trade, 2-trader sample.
Analysis written from the tracked record on 2026-09-04; it is refreshed whenever the underlying numbers change.
Activity by quarter
| Quarter | Disclosed trades | Buys | Sells |
|---|---|---|---|
| 2026 Q3 | 1 | 0 | 1 |
| 2026 Q2 | 1 | 1 | 0 |
| 2025 Q3 | 1 | 1 | 0 |
| 2024 Q1 | 1 | 1 | 0 |
| 2023 Q1 | 1 | 0 | 1 |
| 2022 Q3 | 1 | 0 | 1 |
| 2022 Q2 | 1 | 0 | 1 |
| 2021 Q4 | 1 | 0 | 1 |
Who is buying ACGL?
| Trader | Disclosed buys | Last buy | Grade |
|---|---|---|---|
| Ro Khanna | 3 | 2026-05-01 | — |
| Michael McCaul | 3 | 2021-01-14 | — |
Disclosed trades in ACGL
| Date | Who | Type | Amount | 30d vs SPY |
|---|---|---|---|---|
| 2026-09-04 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2026-05-01 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2025-09-29 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2024-01-10 | Ro Khanna | buy | $1,001 - $15,000 | — |
| 2023-01-11 | Ro Khanna | sell | $1,001 - $15,000 | — |
| 2022-09-02 | Michael McCaul | sell | $50,001 - $100,000 | — |
| 2022-05-05 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2021-12-14 | Michael McCaul | sell | $1,001 - $15,000 | — |
| 2021-01-14 | Michael McCaul | buy | $15,001 - $50,000 | — |
| 2021-01-13 | Michael McCaul | buy | $15,001 - $50,000 | — |
| 2021-01-13 | Michael McCaul | buy | $1,001 - $15,000 | — |
These buyers also bought
Other stocks the tracked buyers of ACGL disclosed buying in the last six months: TSM (2) · DHR (2) · MA (2) · META (2) · TER (2) · P (2).
About Arch Capital Group Ltd.
Arch Capital Group Ltd., together with its subsidiaries, provides insurance, reinsurance, and mortgage insurance products in the United States, Canada, Bermuda, the United Kingdom, Europe, and Australia. The company operates through three segments: Insurance, Reinsurance, and Mortgage. The Insurance segment offers commercial automobile; commercial multiperil; financial and professional line liability; admitted, excess, and surplus casualty lines; property and short-tail specialty; workers compensation; and casualty insurance. Its Reinsurance segment provides reinsurance products for casualty; …
Frequently asked questions
Which politicians bought ACGL most?
Ro Khanna leads with 3 disclosed buys, followed by Michael McCaul.
How current is this page?
It re-renders from the tracked record on every view and new filings are ingested daily — but STOCK Act disclosures can lag the trade by up to 45 days, so the most recent weeks are always incomplete.
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CapitolRadar tracks publicly disclosed trades (STOCK Act filings and SEC Form 4). Disclosures can lag the trade by up to 45 days. Backtests measure past disclosed buys against the S&P 500 and do not predict future results. Everything on this page is impersonal information for your own research — not investment advice.