Bain Capital Specialty Finance, Inc.
US ˙ NYSE ˙ US05684B1070

SecurityBCSF / Bain Capital Specialty Finance, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership138,994 shares
Latest Disclosed Value $ 1,723,526
Trexquant Investment LP reports 35.08% increase in ownership of BCSF / Bain Capital Specialty Finance, Inc.

On May 15, 2026 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 138,994 shares of Bain Capital Specialty Finance, Inc. (US:BCSF) valued at $1,723,526 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 102,897 shares of Bain Capital Specialty Finance, Inc.. This represents a change in shares of 35.08% during the quarter. The current value of the position is $1,777,733 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 138,994 36,097 35.08 1,724 20.41 0.0124
2026-02-17 2025-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 102,897 12,398 13.70 1,431 11.02 0.0128
2025-11-14 2025-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 90,499 56,554 166.60 1,290 152.75 0.0133
2025-08-12 2025-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 33,945 -26,519 -43.86 511 -49.15 0.0058
2025-05-14 2025-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 60,464 -19,404 -24.30 1,004 -28.31 0.0117
2025-02-12 2024-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 79,868 -50,005 -38.50 1,399 -35.08 0.0163
2024-11-12 2024-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 129,873 -1,919 -1.46 2,156 0.28 0.0273
2024-08-13 2024-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 131,792 66,992 103.38 2,150 111.52 0.0328
2024-05-14 2024-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 64,800 30,214 87.36 1,016 95.01 0.0203
2024-02-09 2023-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 34,586 10,528 43.76 521 41.58 0.0117
2023-11-13 2023-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 24,058 -8,640 -26.42 368 -16.55 0.0092
2023-08-11 2023-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 32,698 -5,153 -13.61 442 -2.22 0.0116
2023-05-15 2023-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 37,851 10,101 36.40 451 36.67 0.0124
2023-02-13 2022-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 27,750 27,750 330 0.0094
2022-05-13 2022-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 0 -19,399 -100.00 0 -100.00
2022-02-14 2021-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 19,399 19,399 295 0.0182
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.