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

SecurityBCSF / Bain Capital Specialty Finance, Inc.
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership98,012 shares
Latest Disclosed Value $ 1,363,350
Commonwealth Equity Services, Llc reports 1.45% decrease in ownership of BCSF / Bain Capital Specialty Finance, Inc.

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 98,012 shares of Bain Capital Specialty Finance, Inc. (US:BCSF) valued at $1,363,347 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 99,452 shares of Bain Capital Specialty Finance, Inc.. This represents a change in shares of -1.45% during the quarter. The current value of the position is $1,296,699 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)
2026-02-12 2025-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 98,012 -1,440 -1.45 1,363 136,200.00 0.0018
2025-10-22 2025-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 99,452 -3,142 -3.06 1 0.00 0.0018
2025-08-06 2025-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 102,594 800 0.79 2 0.00 0.0020
2025-05-09 2025-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 101,794 3,029 3.07 2 0.00 0.0024
2025-02-10 2024-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 98,765 15,494 18.61 2 0.00 0.0025
2024-10-18 2024-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 83,271 646 0.78 1 0.00 0.0021
2024-07-31 2024-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 82,625 1,025 1.26 1 0.00 0.0021
2024-04-29 2024-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 81,600 -13,550 -14.24 1 0.00 0.0021
2024-02-06 2023-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 95,150 -1,250 -1.30 1 0.00 0.0026
2023-10-23 2023-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 96,400 6,473 7.20 1 0.00 0.0031
2023-08-10 2023-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 89,927 439 0.49 1 0.00 0.0025
2023-05-11 2023-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 89,488 -13,868 -13.42 1 0.00 0.0022
2023-02-07 2022-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 103,356 -3,079 -2.89 1 -99.92 0.0030
2022-11-14 2022-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 106,435 1,777 1.70 1,277 -10.32 0.0033
2022-07-19 2022-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 104,658 -11,081 -9.57 1,424 -21.06 0.0037
2022-05-04 2022-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 115,739 76,677 196.30 1,804 203.70 0.0041
2022-01-31 2021-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 39,062 1,126 2.97 594 5.69 0.0013
2021-10-29 2021-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 37,936 155 0.41 562 -2.77 0.0014
2021-08-11 2021-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 37,781 420 1.12 578 4.71 0.0015
2021-05-04 2021-03-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 37,361 -43,425 -53.75 552 -43.62 0.0016
2021-02-11 2020-12-31 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 80,786 18,628 29.97 979 54.42 0.0029
2020-11-05 2020-09-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 62,158 13,638 28.11 634 18.06 0.0022
2020-08-12 2020-06-30 13F BAIN CAP SPECIALTY FIN COM STK 05684B107 48,520 29,542 155.66 537 206.86 0.0020
2020-05-11 2020-03-31 13F BAIN CAP SPECIALTY FIN COM 05684B107 18,978 18,978 175 0.0008
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.