William Blair & Company
OKLO

William Blair & Company’s Oklo OKLO Stock Holding History

William Blair & Company’s Portfolio OKLO Stock Details OKLO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$4.15M Buy
79,266
+27,836
+54% +$1.74M 0.01% 569
2026
Q1 		$2.55M Sell
51,430
-10,466
-17% -$752K 0.01% 665
2025
Q4 		$4.44M Sell
61,896
-333
-0.5% -$37.1K 0.01% 552
2025
Q3 		$6.95M Buy
62,229
+20,689
+50% +$1.62M 0.02% 443
2025
Q2 		$2.33M Buy
+41,540
New +$1.6M 0.01% 686

Other funds holding OKLO

Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM

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

William Blair & Company increased its Oklo (OKLO) stake by 54% in Q2 2026, buying an estimated $1.74M and bringing the position to 79,266 shares worth $4.15M. The position accounts for 0.01% of the portfolio, ranked #569.

William Blair & Company first reported a position in OKLO in Q2 2025 and has held it in 5 quarters since. The position peaked at $6.95M in Q3 2025. 672 funds tracked by Wall St. Rank hold OKLO as of Q2 2026.

  • William Blair & Company held 79,266 shares of Oklo worth $4.15M as of Q2 2026.
  • William Blair & Company bought 27,836 Oklo shares in Q2 2026, an estimated $1.74M.
  • Oklo made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #569 holding.
  • William Blair & Company first reported a position in Oklo in Q2 2025 and has held it in 5 quarters since.
  • William Blair & Company's Oklo position peaked at $6.95M in Q3 2025.
  • 672 funds tracked by Wall St. Rank held Oklo as of Q2 2026.

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