Rafferty Asset Management
GOSS icon

Rafferty Asset Management’s Gossamer Bio GOSS Stock Holding History

Rafferty Asset Management’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
-3,910
Closed -$970K – 1097
2025
Q4 		$970K Buy
+3,910
New +$893K ﹤0.01% 805
2023
Q1 		– Sell
-34,644
Closed -$6.01M – 1154
2022
Q4 		$6.01M Buy
34,644
+31,776
+1,108% +$20.9M 0.05% 340
2022
Q3 		$2.75M Buy
2,868
+1,046
+57% +$1.04M 0.03% 439
2022
Q2 		$1.22M Sell
1,822
-559
-23% -$347K 0.01% 586
2022
Q1 		$1.65M Buy
2,381
+83
+4% +$64K 0.01% 668
2021
Q4 		$2.08M Buy
2,298
+1,326
+136% +$1.26M 0.01% 646
2021
Q3 		$977K Sell
972
-439
-31% -$323K 0.01% 835
2021
Q2 		$916K Sell
1,411
-759
-35% -$526K 0.01% 947
2021
Q1 		$1.61M Buy
2,170
+1,857
+593% +$1.5M 0.01% 680
2020
Q4 		$242K Sell
313
-285
-48% -$225K ﹤0.01% 923
2020
Q3 		$594K Buy
598
+388
+185% +$412K 0.01% 667
2020
Q2 		$218K Buy
+210
New +$211K ﹤0.01% 909
2020
Q1 		– Sell
-534
Closed -$668K – 688
2019
Q4 		$668K Buy
+534
New +$860K 0.01% 638

Other funds holding GOSS

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
KCM
Kalehua Capital Management Dallas, Texas $174M AUM
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Arch Venture Management
Arch Venture Management Chicago, Illinois $1.1B AUM 356.62% 1-Year Est. Return
Octagon Capital Advisors
Octagon Capital Advisors New York $1.11B AUM 866.76% 1-Year Est. Return
Samsara BioCapital
Samsara BioCapital Palo Alto, California $1.22B AUM 242.83% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

Rafferty Asset Management's GOSS Position: Q1 2026 in Review

Rafferty Asset Management sold out of Gossamer Bio (GOSS) in Q1 2026, closing a stake of 3,910 shares — an estimated $970K sold.

Rafferty Asset Management first reported a position in GOSS in Q4 2019 and held it in 13 quarters. The position peaked at $6.01M in Q4 2022. 181 funds tracked by Wall St. Rank hold GOSS as of Q1 2026.

  • Rafferty Asset Management reported no remaining Gossamer Bio position as of Q1 2026 after selling out during the quarter.
  • Rafferty Asset Management sold 3,910 Gossamer Bio shares in Q1 2026, an estimated $970K.
  • Rafferty Asset Management first reported a position in Gossamer Bio in Q4 2019 and held it in 13 quarters.
  • Rafferty Asset Management's Gossamer Bio position peaked at $6.01M in Q4 2022.
  • 181 funds tracked by Wall St. Rank held Gossamer Bio as of Q1 2026.

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