Wellington Management Group
GOSS icon

Wellington Management Group’s Gossamer Bio GOSS Stock Holding History

Wellington Management Group’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
2026
Q1 		– Sell
-601,323
Closed -$1.86M – 1934
2025
Q4 		$1.86M Sell
601,323
-40,392
-6% -$115K ﹤0.01% 1612
2025
Q3 		$1.69M Buy
+641,715
New +$1.41M ﹤0.01% 1679
2019
Q2 		– Sell
-99,750
Closed -$2.16M – 2079
2019
Q1 		$2.16M Buy
+99,750
New +$2.08M ﹤0.01% 1601

Other funds holding GOSS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $141M AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
AVM
Arch Venture Management Chicago, Illinois $677M AUM 322.07% 1-Year Est. Return
OCA
Octagon Capital Advisors New York $904M AUM 737.04% 1-Year Est. Return
SB
Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

Wellington Management Group's GOSS Position: Q1 2026 in Review

Wellington Management Group sold out of Gossamer Bio (GOSS) in Q1 2026, closing a stake of 601,323 shares — an estimated $1.86M sold.

Wellington Management Group first reported a position in GOSS in Q1 2019 and held it in 3 quarters. The position peaked at $2.16M in Q1 2019. 185 funds tracked by Wall St. Rank hold GOSS as of Q1 2026.

  • Wellington Management Group reported no remaining Gossamer Bio position as of Q1 2026 after selling out during the quarter.
  • Wellington Management Group sold 601,323 Gossamer Bio shares in Q1 2026, an estimated $1.86M.
  • Wellington Management Group first reported a position in Gossamer Bio in Q1 2019 and held it in 3 quarters.
  • Wellington Management Group's Gossamer Bio position peaked at $2.16M in Q1 2019.
  • 185 funds tracked by Wall St. Rank held Gossamer Bio as of Q1 2026.

Based on Wellington Management Group's 13F filing for Q1 2026, filed 15 May 2026.