BCSF
BAIN CAPITAL SPECIALTY FINANCE, INC.Marquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Citadel Advisors re-entered | Q3 2024(8Q snapshot) | 7Q | $0.00 | — | — |
| Two Sigma Investments | Q3 2024(8Q snapshot) | 7Q | $0.00 | — | — |
| Millennium Management re-entered | Q3 2024(8Q snapshot) | 7Q | $0.00 | — | — |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at Bain Capital Specialty Finance, Inc.. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Mar 3, 2026 — the most recent Form 4 on file — not from today.
- Form 40001669006-26-000001Mar 3, 2026
- Form 40001451084-25-000001Mar 17, 2025
- Form 40001415889-22-008462Aug 10, 2022
- Form 40001179110-22-002414Mar 25, 2022
- Form 40001104659-22-030504Mar 4, 2022
- Form 40001179110-22-001659Feb 25, 2022
- Form 40001179110-21-005166May 11, 2021
- Form 40001179110-20-011610Dec 3, 2020
- Form 40001179110-20-011586Dec 3, 2020
- Form 40001179110-20-009173Aug 19, 2020
- Form 40001179110-20-007759Jun 25, 2020
- Form 40001179110-20-007561Jun 18, 2020
- Form 40001179110-20-007500Jun 17, 2020
- Form 40001179110-20-007113Jun 8, 2020
- Form 40001179110-20-007108Jun 8, 2020
Fundamentals
XBRL · BAIN CAPITAL SPECIALTY FINANCE, INC.Annual figures sourced directly from BAIN CAPITAL SPECIALTY FINANCE, INC.'s 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for Bain Capital Specialty Finance, Inc. — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventMay 22, 2026
- 8-KMaterial eventMay 12, 2026
- 10-QQuarterly reportMay 11, 2026
- 8-KMaterial eventApr 29, 2026
- DEF 14AProxy statementApr 20, 2026
- 8-KMaterial eventFeb 27, 2026
- 10-KAnnual reportFeb 27, 2026
- 8-KMaterial eventFeb 12, 2026
- 8-KMaterial eventJan 29, 2026
- 8-KMaterial eventJan 23, 2026
- 8-KMaterial eventDec 22, 2025
- 8-KMaterial eventNov 10, 2025
- 10-QQuarterly reportNov 10, 2025
- 8-KMaterial eventNov 6, 2025
- 8-KMaterial eventOct 28, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Citadel Advisors | Q2 2026 | open | $0.00 | — | +0% |
| Citadel Advisors | Q2 2025 | Q4 2025 | $0.00 | — | +0% |
| Millennium Management | Q2 2025 | open | $0.00 | — | +0% |
| Citadel Advisors | Q3 2024 | Q1 2025 | $0.00 | — | +0% |
| Two Sigma Investments | Q3 2024 | open | $0.00 | — | +0% |
| Millennium Management | Q3 2024 | Q1 2025 | $0.00 | — | +0% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.