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Palo Alto Investors’s Gossamer Bio GOSS Stock Holding History

Palo Alto Investors’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
-4,471,592
Closed -$13.9M – 54
2025
Q4 		$13.9M Sell
4,471,592
-992,757
-18% -$2.83M 1.93% 14
2025
Q3 		$14.4M Sell
5,464,349
-274,664
-5% -$605K 2.66% 14
2025
Q2 		$7.06M Sell
5,739,013
-537,880
-9% -$587K 1.5% 16
2025
Q1 		$6.9M Sell
6,276,893
-200
-0% -$231 1.31% 18
2024
Q4 		$5.68M Hold
6,277,093
– – 0.88% 18
2024
Q3 		$6.19M Hold
6,277,093
– – 0.8% 22
2024
Q2 		$5.66M Sell
6,277,093
-114,682
-2% -$85.8K 0.66% 23
2024
Q1 		$7.54M Buy
6,391,775
+432,887
+7% +$476K 0.85% 25
2023
Q4 		$6.53M Sell
5,958,888
-571,400
-9% -$422K 0.59% 23
2023
Q3 		$5.44M Buy
6,530,288
+3,065,136
+88% +$3.53M 0.51% 20
2023
Q2 		$4.16M Hold
3,465,152
– – 0.34% 20
2023
Q1 		$4.37M Buy
3,465,152
+3,427,402
+9,079% +$6.56M 0.36% 18
2022
Q4 		$81.9K Sell
37,750
-1,712,901
-98% -$14.1M 0.01% 29
2022
Q3 		$21M Hold
1,750,651
– – 1.66% 14
2022
Q2 		$14.7M Sell
1,750,651
-6,106
-0.3% -$47.3K 1.28% 16
2022
Q1 		$15.2M Sell
1,756,757
-16,193
-0.9% -$156K 1.18% 17
2021
Q4 		$20.1M Hold
1,772,950
– – 1.28% 17
2021
Q3 		$22.3M Hold
1,772,950
– – 1.35% 18
2021
Q2 		$14.4M Hold
1,772,950
– – 0.79% 20
2021
Q1 		$16.4M Buy
1,772,950
+33,900
+2% +$342K 0.93% 20
2020
Q4 		$16.8M Buy
1,739,050
+661,850
+61% +$6.52M 0.88% 19
2020
Q3 		$13.4M Buy
1,077,200
+872,986
+427% +$11.6M 0.73% 20
2020
Q2 		$2.65M Buy
+204,214
New +$2.57M 0.16% 27

Other funds holding GOSS

BlackRock
BlackRock New York $5.72T AUM 30.48% 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

Palo Alto Investors's GOSS Position: Q1 2026 in Review

Palo Alto Investors sold out of Gossamer Bio (GOSS) in Q1 2026, closing a stake of 4,471,592 shares — an estimated $13.9M sold.

Palo Alto Investors first reported a position in GOSS in Q2 2020 and held it in 23 quarters. The position peaked at $22.3M in Q3 2021. 184 funds tracked by Wall St. Rank hold GOSS as of Q1 2026.

  • Palo Alto Investors reported no remaining Gossamer Bio position as of Q1 2026 after selling out during the quarter.
  • Palo Alto Investors sold 4,471,592 Gossamer Bio shares in Q1 2026, an estimated $13.9M.
  • Palo Alto Investors first reported a position in Gossamer Bio in Q2 2020 and held it in 23 quarters.
  • Palo Alto Investors's Gossamer Bio position peaked at $22.3M in Q3 2021.
  • 184 funds tracked by Wall St. Rank held Gossamer Bio as of Q1 2026.

Based on Palo Alto Investors's 13F filing for Q1 2026, filed 15 May 2026.