State of Wisconsin Investment Board’s Gossamer Bio GOSS Stock Holding History

State of Wisconsin Investment Board’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	-26,304	Closed	-$81.5K	–	2545
2025 Q4	$81.5K	Buy	+26,304	New	+$75.1K	﹤0.01%	2332
2022 Q4	–	Sell	-50,825	Closed	-$609K	–	2565
2022 Q3	$609K	Sell	50,825 -1,441	-3%	-$17.9K	﹤0.01%	1861
2022 Q2	$437K	Sell	52,266 -24,034	-31%	-$186K	﹤0.01%	2135
2022 Q1	$662K	Hold	76,300	–	–	﹤0.01%	1733
2021 Q4	$863K	Hold	76,300	–	–	﹤0.01%	1502
2021 Q3	$959K	Hold	76,300	–	–	﹤0.01%	1459
2021 Q2	$620K	Hold	76,300	–	–	﹤0.01%	1620
2021 Q1	$706K	Sell	76,300 -3,200	-4%	-$32.3K	﹤0.01%	1468
2020 Q4	$769K	Hold	79,500	–	–	﹤0.01%	1404
2020 Q3	$987K	Buy	79,500 +11,000	+16%	+$146K	﹤0.01%	1297
2020 Q2	$890K	Buy	68,500 +2,300	+3%	+$28.9K	﹤0.01%	1263
2020 Q1	$672K	Buy	66,200 +36,200	+121%	+$473K	﹤0.01%	1274
2019 Q4	$469K	Hold	30,000	–	–	﹤0.01%	1467
2019 Q3	$504K	Buy	30,000 +13,900	+86%	+$276K	﹤0.01%	1323
2019 Q2	$357K	Buy	+16,100	New	+$308K	﹤0.01%	1404

Other funds holding GOSS

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

KCM

Kalehua Capital Management Dallas, Texas $141M AUM

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

Samsara BioCapital Palo Alto, California $1.03B AUM 214.94% 1-Year Est. Return

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return

State of Wisconsin Investment Board's GOSS Position: Q1 2026 in Review

State of Wisconsin Investment Board sold out of Gossamer Bio (GOSS) in Q1 2026, closing a stake of 26,304 shares — an estimated $81.5K sold.

State of Wisconsin Investment Board first reported a position in GOSS in Q2 2019 and held it in 15 quarters. The position peaked at $987K in Q3 2020. 184 funds tracked by Wall St. Rank hold GOSS as of Q1 2026.

State of Wisconsin Investment Board reported no remaining Gossamer Bio position as of Q1 2026 after selling out during the quarter.
State of Wisconsin Investment Board sold 26,304 Gossamer Bio shares in Q1 2026, an estimated $81.5K.
State of Wisconsin Investment Board first reported a position in Gossamer Bio in Q2 2019 and held it in 15 quarters.
State of Wisconsin Investment Board's Gossamer Bio position peaked at $987K in Q3 2020.
184 funds tracked by Wall St. Rank held Gossamer Bio as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.