Millennium Management’s Altimmune ALT Stock Holding History

Millennium Management’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 Q3	–	Sell	-100,000	Closed	-$387K	–	5991
2025 Q2	$387K	Buy	100,000 +50,000	+100%	+$271K	﹤0.01%	5061
2025 Q1	$250K	Buy	+50,000	New	+$317K	﹤0.01%	5190
2023 Q2	–	Sell	-30,000	Closed	-$127K	–	6066
2023 Q1	$127K	Buy	+30,000	New	+$356K	﹤0.01%	5338
2021 Q3	–	Sell	-175,000	Closed	-$1.72M	–	6733
2021 Q2	$1.72M	Buy	175,000 +35,000	+25%	+$479K	﹤0.01%	4135
2021 Q1	$1.98M	Buy	+140,000	New	+$2.26M	﹤0.01%	3547

Other funds holding ALT

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

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

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

Alyeska Investment Group Chicago, Illinois $35.4B AUM 33.54% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

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

Millennium Management's ALT Position: Q1 2026 in Review

Millennium Management increased its Altimmune (ALT) stake by 1,471% in Q1 2026, buying an estimated $13M and bringing the position to 3,258,191 shares worth $10M. The position accounts for ﹤0.01% of the portfolio, ranked #2165.

Millennium Management first reported a position in ALT in Q4 2016 and has held it in 28 quarters since. The position peaked at $16.2M in Q1 2024. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

Millennium Management held 3,258,191 shares of Altimmune worth $10M as of Q1 2026.
Millennium Management bought 3,050,808 Altimmune shares in Q1 2026, an estimated $13M.
Altimmune made up ﹤0.01% of Millennium Management's portfolio in Q1 2026, its #2165 holding.
Millennium Management first reported a position in Altimmune in Q4 2016 and has held it in 28 quarters since.
Millennium Management's Altimmune position peaked at $16.2M in Q1 2024.
173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

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