Simplex Trading
GRAL

Simplex Trading’s GRAIL Inc GRAL Stock Holding History

Simplex Trading’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 		$526K Sell
7,700
-1,400
-15% -$82.4K ﹤0.01% 3541
2026
Q1 		$470K Sell
9,100
-27,300
-75% -$2.11M ﹤0.01% 3336
2025
Q4 		$3.12M Buy
36,400
+25,300
+228% +$2.19M ﹤0.01% 1628
2025
Q3 		$656K Sell
11,100
-4,500
-29% -$172K ﹤0.01% 3506
2025
Q2 		$802K Sell
15,600
-18,000
-54% -$652K ﹤0.01% 3010
2025
Q1 		$858K Buy
33,600
+3,700
+12% +$114K ﹤0.01% 2853
2024
Q4 		$533K Buy
29,900
+4,700
+19% +$76.4K ﹤0.01% 3471
2024
Q3 		$346K Buy
+25,200
New +$382K ﹤0.01% 3989

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 $190M AUM 50.42% 1-Year Est. Return

Simplex Trading's GRAL Position: Q2 2026 in Review

Simplex Trading increased its GRAIL Inc (GRAL) stake by 72% in Q2 2026, buying an estimated $107K and bringing the position to 4,362 shares worth $298K. The position accounts for ﹤0.01% of the portfolio, ranked #4229.

Simplex Trading first reported a position in GRAL in Q4 2024 and has held it in 5 quarters since. The position peaked at $1.37M in Q4 2025. 375 funds tracked by Wall St. Rank hold GRAL as of Q2 2026.

  • Simplex Trading held 4,362 shares of GRAIL Inc worth $298K as of Q2 2026.
  • Simplex Trading bought 1,821 GRAIL Inc shares in Q2 2026, an estimated $107K.
  • GRAIL Inc made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #4229 holding.
  • Simplex Trading first reported a position in GRAIL Inc in Q4 2024 and has held it in 5 quarters since.
  • Simplex Trading's GRAIL Inc position peaked at $1.37M in Q4 2025.
  • 375 funds tracked by Wall St. Rank held GRAIL Inc as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.