WJS
GRAL

William John Sempolinski’s GRAIL Inc GRAL Stock Holding History

William John Sempolinski’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 		$488K Buy
+7,150
New +$421K 0.2% 71
2026
Q1 		– Sell
-17,975
Closed -$1.54M – 99
2025
Q4 		$1.54M Buy
+17,975
New +$1.55M 0.76% 29

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 $3.38T AUM 44.17% 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

William John Sempolinski's GRAL Position: Q2 2026 in Review

William John Sempolinski opened a new position in GRAIL Inc (GRAL) in Q2 2026: 7,150 shares worth $488K. The stake represents 0.2% of the portfolio and ranks #71 among its holdings. This is a return to the name: William John Sempolinski previously reported a position in GRAL as recently as Q4 2025.

William John Sempolinski first reported a position in GRAL in Q4 2025 and has held it in 2 quarters since. The position peaked at $1.54M in Q4 2025. 375 funds tracked by Wall St. Rank hold GRAL as of Q2 2026.

  • William John Sempolinski held 7,150 shares of GRAIL Inc worth $488K as of Q2 2026.
  • GRAIL Inc was a new William John Sempolinski position in Q2 2026.
  • GRAIL Inc made up 0.2% of William John Sempolinski's portfolio in Q2 2026, its #71 holding.
  • William John Sempolinski first reported a position in GRAIL Inc in Q4 2025 and has held it in 2 quarters since.
  • William John Sempolinski's GRAIL Inc position peaked at $1.54M in Q4 2025.
  • 375 funds tracked by Wall St. Rank held GRAIL Inc as of Q2 2026.

Based on William John Sempolinski's 13F filing for Q2 2026, filed 14 Aug 2026.