William Blair & Company’s Bain Capital Specialty BCSF Stock Holding History

William Blair & Company’s Portfolio BCSF Stock Details BCSF Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$807K	Buy	+64,468	New	+$841K	﹤0.01%	1056
2025 Q4	–	Sell	-10,339	Closed	-$147K	–	1872
2025 Q3	$147K	Hold	10,339	–	–	﹤0.01%	1508
2025 Q2	$155K	Hold	10,339	–	–	﹤0.01%	1460
2025 Q1	$172K	Sell	10,339 -2,000	-16%	-$35.2K	﹤0.01%	1425
2024 Q4	$216K	Sell	12,339 -17,231	-58%	-$291K	﹤0.01%	1415
2024 Q3	$491K	Hold	29,570	–	–	﹤0.01%	1116
2024 Q2	$482K	Hold	29,570	–	–	﹤0.01%	1108
2024 Q1	$464K	Hold	29,570	–	–	﹤0.01%	1105
2023 Q4	$446K	Hold	29,570	–	–	﹤0.01%	1101
2023 Q3	$453K	Hold	29,570	–	–	﹤0.01%	1088
2023 Q2	$399K	Hold	29,570	–	–	﹤0.01%	1128
2023 Q1	$352K	Hold	29,570	–	–	﹤0.01%	1168
2022 Q4	$352K	Hold	29,570	–	–	﹤0.01%	1157
2022 Q3	$355K	Hold	29,570	–	–	﹤0.01%	1161
2022 Q2	$402K	Hold	29,570	–	–	﹤0.01%	1145
2022 Q1	$461K	Hold	29,570	–	–	﹤0.01%	1184
2021 Q4	$450K	Hold	29,570	–	–	﹤0.01%	1257
2021 Q3	$439K	Hold	29,570	–	–	﹤0.01%	1201
2021 Q2	$452K	Hold	29,570	–	–	﹤0.01%	1181
2021 Q1	$437K	Hold	29,570	–	–	﹤0.01%	1178
2020 Q4	$359K	Hold	29,570	–	–	﹤0.01%	1186
2020 Q3	$302K	Hold	29,570	–	–	﹤0.01%	1146
2020 Q2	$328K	Sell	29,570 -9,363	-24%	-$96.8K	﹤0.01%	1056
2020 Q1	$354K	Hold	38,933	–	–	﹤0.01%	968
2019 Q4	$755K	Hold	38,933	–	–	﹤0.01%	859
2019 Q3	$725K	Sell	38,933 -226,661	-85%	-$4.09M	﹤0.01%	835
2019 Q2	$4.85M	Buy	+265,594	New	+$5.05M	0.03%	385

Other funds holding BCSF

BCC

Bain Capital Credit Boston, Massachusetts $368M AUM 9.33% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

CAM

Cresset Asset Management Chicago, Illinois $27.6B AUM 31.92% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

DCM

Dimension Capital Management Coral Gables, Florida $854M AUM 21.01% 1-Year Est. Return

Melia Wealth Tulsa, Oklahoma $174M AUM 9.16% 1-Year Est. Return

Muzinich & Co New York $293M AUM 18.57% 1-Year Est. Return

William Blair & Company's BCSF Position: Q2 2026 in Review

William Blair & Company opened a new position in Bain Capital Specialty (BCSF) in Q2 2026: 64,468 shares worth $807K. The stake represents ﹤0.01% of the portfolio and ranks #1056 among its holdings. This is a return to the name: William Blair & Company previously reported a position in BCSF as recently as Q3 2025.

William Blair & Company first reported a position in BCSF in Q2 2019 and has held it in 27 quarters since. The position peaked at $4.85M in Q2 2019. 128 funds tracked by Wall St. Rank hold BCSF as of Q2 2026.

William Blair & Company held 64,468 shares of Bain Capital Specialty worth $807K as of Q2 2026.
Bain Capital Specialty was a new William Blair & Company position in Q2 2026.
Bain Capital Specialty made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1056 holding.
William Blair & Company first reported a position in Bain Capital Specialty in Q2 2019 and has held it in 27 quarters since.
William Blair & Company's Bain Capital Specialty position peaked at $4.85M in Q2 2019.
128 funds tracked by Wall St. Rank held Bain Capital Specialty as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.