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OMERS Administration Corp’s Gossamer Bio GOSS Stock Holding History

OMERS Administration Corp’s Portfolio GOSS Stock Details GOSS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-59,100
Closed -$155K – 1175
2025
Q3 		$155K Buy
+59,100
New +$130K ﹤0.01% 1006
2025
Q2 		– Sell
-351,600
Closed -$387K – 971
2025
Q1 		$387K Buy
+351,600
New +$406K ﹤0.01% 805
2024
Q2 		– Sell
-64,600
Closed -$76.2K – 1118
2024
Q1 		$76.2K Buy
+64,600
New +$71.1K ﹤0.01% 349

Other funds holding GOSS

NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $904M AUM 737.04% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
AVM
Arch Venture Management Chicago, Illinois $677M AUM 322.07% 1-Year Est. Return
Corient Private Wealth
Corient Private Wealth Miami, Florida $69.9B AUM 22.19% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return

OMERS Administration Corp's GOSS Position: Q4 2025 in Review

OMERS Administration Corp sold out of Gossamer Bio (GOSS) in Q4 2025, closing a stake of 59,100 shares — an estimated $155K sold.

OMERS Administration Corp first reported a position in GOSS in Q1 2024 and held it in 3 quarters. The position peaked at $387K in Q1 2025. 195 funds tracked by Wall St. Rank hold GOSS as of Q4 2025.

  • OMERS Administration Corp reported no remaining Gossamer Bio position as of Q4 2025 after selling out during the quarter.
  • OMERS Administration Corp sold 59,100 Gossamer Bio shares in Q4 2025, an estimated $155K.
  • OMERS Administration Corp first reported a position in Gossamer Bio in Q1 2024 and held it in 3 quarters.
  • OMERS Administration Corp's Gossamer Bio position peaked at $387K in Q1 2025.
  • 195 funds tracked by Wall St. Rank held Gossamer Bio as of Q4 2025.

Based on OMERS Administration Corp's 13F filing for Q4 2025, filed 13 Feb 2026.