SIG Brokerage’s Altimmune ALT Stock Holding History

SIG Brokerage’s Portfolio ALT Stock Details ALT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-34,502	Closed	-$130K	–	665
2025 Q3	$130K	Buy	+34,502	New	+$133K	﹤0.01%	693

Other funds holding ALT

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

TCM

Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

SIG Brokerage's ALT Position: Q4 2025 in Review

SIG Brokerage sold out of Altimmune (ALT) in Q4 2025, closing a stake of 34,502 shares — an estimated $130K sold.

SIG Brokerage first reported a position in ALT in Q3 2025 and held it in 1 quarter. The position peaked at $130K in Q3 2025. 181 funds tracked by Wall St. Rank hold ALT as of Q4 2025.

SIG Brokerage reported no remaining Altimmune position as of Q4 2025 after selling out during the quarter.
SIG Brokerage sold 34,502 Altimmune shares in Q4 2025, an estimated $130K.
SIG Brokerage first reported a position in Altimmune in Q3 2025 and held it in 1 quarter.
SIG Brokerage's Altimmune position peaked at $130K in Q3 2025.
181 funds tracked by Wall St. Rank held Altimmune as of Q4 2025.

Based on SIG Brokerage's 13F filing for Q4 2025, filed 17 Feb 2026.