William Blair & Company
BXSL icon

William Blair & Company’s Blackstone Secured Lending BXSL Stock Holding History

William Blair & Company’s Portfolio BXSL Stock Details BXSL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.56M Buy
107,984
+14,170
+15% +$338K 0.01% 699
2026
Q1 		$2.22M Buy
93,814
+2,544
+3% +$63.4K 0.01% 703
2025
Q4 		$2.4M Sell
91,270
-21,003
-19% -$564K 0.01% 699
2025
Q3 		$2.93M Buy
112,273
+7,226
+7% +$217K 0.01% 638
2025
Q2 		$3.23M Sell
105,047
-2,419
-2% -$73.8K 0.01% 608
2025
Q1 		$3.48M Buy
107,466
+48,917
+84% +$1.61M 0.01% 577
2024
Q4 		$1.89M Buy
58,549
+33,267
+132% +$1.04M 0.01% 725
2024
Q3 		$741K Buy
25,282
+3,681
+17% +$111K ﹤0.01% 998
2024
Q2 		$661K Buy
21,601
+11,134
+106% +$348K ﹤0.01% 1008
2024
Q1 		$326K Buy
+10,467
New +$307K ﹤0.01% 1224
2023
Q3 		– Sell
-22,317
Closed -$611K – 1796
2023
Q2 		$611K Buy
22,317
+6,028
+37% +$155K ﹤0.01% 991
2023
Q1 		$406K Sell
16,289
-2,683
-14% -$65.8K ﹤0.01% 1122
2022
Q4 		$424K Buy
18,972
+610
+3% +$14.3K ﹤0.01% 1097
2022
Q3 		$418K Buy
18,362
+8,019
+78% +$191K ﹤0.01% 1108
2022
Q2 		$244K Buy
+10,343
New +$268K ﹤0.01% 1345

Other funds holding BXSL

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
SO
STRS Ohio Columbus, Ohio $26.7B AUM 43.32% 1-Year Est. Return
Ensign Peak Advisors
Ensign Peak Advisors Salt Lake City, Utah $60.8B AUM 42.06% 1-Year Est. Return
Blackstone Inc
Blackstone Inc New York $32.9B AUM 23.66% 1-Year Est. Return
Nomura Asset Management
Nomura Asset Management Tokyo, Japan $46.7B AUM 50.59% 1-Year Est. Return
GAM
Generali Asset Management Trieste, Italy $5.53B AUM 35.1% 1-Year Est. Return
Corient Private Wealth
Corient Private Wealth Miami, Florida $72.2B AUM 27.85% 1-Year Est. Return

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

William Blair & Company increased its Blackstone Secured Lending (BXSL) stake by 15% in Q2 2026, buying an estimated $338K and bringing the position to 107,984 shares worth $2.56M. The position accounts for 0.01% of the portfolio, ranked #699.

William Blair & Company first reported a position in BXSL in Q2 2022 and has held it in 15 quarters since. The position peaked at $3.48M in Q1 2025. 359 funds tracked by Wall St. Rank hold BXSL as of Q2 2026.

  • William Blair & Company held 107,984 shares of Blackstone Secured Lending worth $2.56M as of Q2 2026.
  • William Blair & Company bought 14,170 Blackstone Secured Lending shares in Q2 2026, an estimated $338K.
  • Blackstone Secured Lending made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #699 holding.
  • William Blair & Company first reported a position in Blackstone Secured Lending in Q2 2022 and has held it in 15 quarters since.
  • William Blair & Company's Blackstone Secured Lending position peaked at $3.48M in Q1 2025.
  • 359 funds tracked by Wall St. Rank held Blackstone Secured Lending as of Q2 2026.

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