Mariner
SNDK

Mariner’s Sandisk SNDK Stock Holding History

Mariner’s Portfolio SNDK Stock Details SNDK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$106M Sell
46,742
-6,550
-12% -$9.35M 0.11% 148
2026
Q1 		$33.8M Buy
53,292
+2,089
+4% +$1.18M 0.04% 344
2025
Q4 		$12.2M Buy
51,203
+11,168
+28% +$2.24M 0.01% 622
2025
Q3 		$4.49M Buy
40,035
+21,131
+112% +$1.23M 0.01% 981
2025
Q2 		$857K Buy
18,904
+5,162
+38% +$197K ﹤0.01% 1913
2025
Q1 		$654K Buy
+13,742
New +$683K ﹤0.01% 1980

Other funds holding SNDK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
CS
Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $20.2B AUM 612.59% 1-Year Est. Return

Mariner's SNDK Position: Q2 2026 in Review

Mariner reduced its Sandisk (SNDK) stake by 12% in Q2 2026, selling an estimated $9.35M and leaving 46,742 shares worth $106M. The position accounts for 0.11% of the portfolio, ranked #148.

Mariner first reported a position in SNDK in Q1 2025 and has held it in 6 quarters since. 1,822 funds tracked by Wall St. Rank hold SNDK as of Q2 2026.

  • Mariner held 46,742 shares of Sandisk worth $106M as of Q2 2026.
  • Mariner sold 6,550 Sandisk shares in Q2 2026, an estimated $9.35M.
  • Sandisk made up 0.11% of Mariner's portfolio in Q2 2026, its #148 holding.
  • Mariner first reported a position in Sandisk in Q1 2025 and has held it in 6 quarters since.
  • 1,822 funds tracked by Wall St. Rank held Sandisk as of Q2 2026.

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