Mariner
GRAL

Mariner’s GRAIL Inc GRAL Stock Holding History

Mariner’s Portfolio GRAL Stock Details GRAL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$940K Sell
13,775
-1,857
-12% -$109K ﹤0.01% 1998
2026
Q1 		$808K Sell
15,632
-6,127
-28% -$475K ﹤0.01% 2119
2025
Q4 		$1.86M Buy
21,759
+6,256
+40% +$540K ﹤0.01% 1544
2025
Q3 		$917K Sell
15,503
-805
-5% -$30.8K ﹤0.01% 1979
2025
Q2 		$838K Buy
+16,308
New +$590K ﹤0.01% 1935
2025
Q1 		– Sell
-10,619
Closed -$190K – 3609
2024
Q4 		$190K Buy
+10,619
New +$173K ﹤0.01% 3020

Other funds holding GRAL

FCM
Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
SC
Sessa Capital New York $5.98B AUM 99.85% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
APCM
Arbiter Partners Capital Management New York $197M AUM 47.99% 1-Year Est. Return

Mariner's GRAL Position: Q2 2026 in Review

Mariner reduced its GRAIL Inc (GRAL) stake by 12% in Q2 2026, selling an estimated $109K and leaving 13,775 shares worth $940K. The position accounts for ﹤0.01% of the portfolio, ranked #1998.

Mariner first reported a position in GRAL in Q4 2024 and has held it in 6 quarters since. The position peaked at $1.86M in Q4 2025. 375 funds tracked by Wall St. Rank hold GRAL as of Q2 2026.

  • Mariner held 13,775 shares of GRAIL Inc worth $940K as of Q2 2026.
  • Mariner sold 1,857 GRAIL Inc shares in Q2 2026, an estimated $109K.
  • GRAIL Inc made up ﹤0.01% of Mariner's portfolio in Q2 2026, its #1998 holding.
  • Mariner first reported a position in GRAIL Inc in Q4 2024 and has held it in 6 quarters since.
  • Mariner's GRAIL Inc position peaked at $1.86M in Q4 2025.
  • 375 funds tracked by Wall St. Rank held GRAIL Inc as of Q2 2026.

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