Mariner
OKLO

Mariner’s Oklo OKLO Stock Holding History

Mariner’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 		$527K Sell
10,065
-41,680
-81% -$2.6M ﹤0.01% 2419
2026
Q1 		$2.57M Sell
51,745
-10,995
-18% -$790K ﹤0.01% 1400
2025
Q4 		$4.5M Sell
62,740
-704
-1% -$78.5K 0.01% 1055
2025
Q3 		$7.08M Buy
63,444
+9,823
+18% +$769K 0.01% 768
2025
Q2 		$3M Buy
53,621
+13,337
+33% +$514K ﹤0.01% 1101
2025
Q1 		$871K Buy
40,284
+8,923
+28% +$302K ﹤0.01% 1791
2024
Q4 		$666K Sell
31,361
-25,283
-45% -$490K ﹤0.01% 1949
2024
Q3 		$458K Sell
56,644
-900
-2% -$6.78K ﹤0.01% 2207
2024
Q2 		$487K Buy
+57,544
New +$647K ﹤0.01% 2072

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

Mariner's OKLO Position: Q2 2026 in Review

Mariner reduced its Oklo (OKLO) stake by 81% in Q2 2026, selling an estimated $2.6M and leaving 10,065 shares worth $527K. The position accounts for ﹤0.01% of the portfolio, ranked #2419.

Mariner first reported a position in OKLO in Q2 2024 and has held it in 9 quarters since. The position peaked at $7.08M in Q3 2025. 671 funds tracked by Wall St. Rank hold OKLO as of Q2 2026.

  • Mariner held 10,065 shares of Oklo worth $527K as of Q2 2026.
  • Mariner sold 41,680 Oklo shares in Q2 2026, an estimated $2.6M.
  • Oklo made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #2419 holding.
  • Mariner first reported a position in Oklo in Q2 2024 and has held it in 9 quarters since.
  • Mariner's Oklo position peaked at $7.08M in Q3 2025.
  • 671 funds tracked by Wall St. Rank held Oklo as of Q2 2026.

Based on Mariner's 13F filing for Q2 2026, filed 13 Aug 2026.