Arrowstreet Capital’s Gossamer Bio GOSS Stock Holding History

Arrowstreet Capital’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 Q2	$1.25M	Buy	+7,573,388	New	+$2.11M	﹤0.01%	1611
2026 Q1	–	Sell	-750,308	Closed	-$2.33M	–	1953
2025 Q4	$2.33M	Buy	750,308 +114,911	+18%	+$328K	﹤0.01%	1365
2025 Q3	$1.67M	Sell	635,397 -482,575	-43%	-$1.06M	﹤0.01%	1487
2025 Q2	$1.38M	Buy	1,117,972 +314,157	+39%	+$343K	﹤0.01%	1537
2025 Q1	$884K	Buy	+803,815	New	+$929K	﹤0.01%	1495
2022 Q2	–	Sell	-35,253	Closed	-$306K	–	1305
2022 Q1	$306K	Buy	+35,253	New	+$340K	﹤0.01%	1072
2020 Q4	–	Sell	-108,236	Closed	-$1.34M	–	2383
2020 Q3	$1.34M	Buy	108,236 +28,208	+35%	+$374K	﹤0.01%	1722
2020 Q2	$1.04M	Buy	80,028 +67,428	+535%	+$848K	﹤0.01%	1758
2020 Q1	$128K	Sell	12,600 -127,252	-91%	-$1.66M	﹤0.01%	1771
2019 Q4	$2.19M	Buy	+139,852	New	+$2.82M	0.01%	1114

Other funds holding GOSS

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

6CM

683 Capital Management New York $2.04B AUM 94.26% 1-Year Est. Return

DIG

DeepCurrents Investment Group New York $3.3B AUM 12.57% 1-Year Est. Return

CCM

Context Capital Management Lajolla, California $5.15B AUM 1.28% 1-Year Est. Return

WVP

Worth Venture Partners Fort Lee, New Jersey $44.3M AUM 34.55% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

GCP

GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return

WAM

Wolverine Asset Management Chicago, Illinois $11.4B AUM 5.65% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

KCM

Kalehua Capital Management Dallas, Texas $174M AUM

Arrowstreet Capital's GOSS Position: Q2 2026 in Review

Arrowstreet Capital opened a new position in Gossamer Bio (GOSS) in Q2 2026: 7,573,388 shares worth $1.25M. The stake represents ﹤0.01% of the portfolio and ranks #1611 among its holdings. This is a return to the name: Arrowstreet Capital previously reported a position in GOSS as recently as Q4 2025.

Arrowstreet Capital first reported a position in GOSS in Q4 2019 and has held it in 10 quarters since. The position peaked at $2.33M in Q4 2025. 170 funds tracked by Wall St. Rank hold GOSS as of Q2 2026.

Arrowstreet Capital held 7,573,388 shares of Gossamer Bio worth $1.25M as of Q2 2026.
Gossamer Bio was a new Arrowstreet Capital position in Q2 2026.
Gossamer Bio made up ﹤0.01% of Arrowstreet Capital's portfolio in Q2 2026, its #1611 holding.
Arrowstreet Capital first reported a position in Gossamer Bio in Q4 2019 and has held it in 10 quarters since.
Arrowstreet Capital's Gossamer Bio position peaked at $2.33M in Q4 2025.
170 funds tracked by Wall St. Rank held Gossamer Bio as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.