Caption Management’s Altimmune ALT Stock Holding History

Caption 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
2026 Q1	–	Sell	-21,200	Closed	-$76.5K	–	1512
2025 Q4	$76.5K	Buy	+21,200	New	+$92.4K	﹤0.01%	1453
2025 Q3	–	Sell	-322,800	Closed	-$1.25M	–	1634
2025 Q2	$1.25M	Sell	322,800 -187,000	-37%	-$1.01M	0.01%	874
2025 Q1	$2.55M	Buy	+509,800	New	+$3.23M	0.02%	608
2024 Q3	–	Sell	-25,000	Closed	-$166K	–	1243
2024 Q2	$166K	Buy	+25,000	New	+$184K	﹤0.01%	977
2023 Q2	–	Sell	-1,490,200	Closed	-$6.29M	–	1077
2023 Q1	$6.29M	Buy	1,490,200 +942,900	+172%	+$11.2M	0.12%	194
2022 Q4	$9M	Sell	547,300 -75,900	-12%	-$853K	0.14%	178
2022 Q3	$7.96M	Buy	+623,200	New	+$9.2M	0.11%	220
2022 Q2	–	Sell	-381,300	Closed	-$2.32M	–	1412
2022 Q1	$2.32M	Hold	381,300	–	–	0.03%	704
2021 Q4	$3.49M	Hold	381,300	–	–	0.04%	586
2021 Q3	$4.31M	Buy	+381,300	New	+$4.64M	0.05%	512

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

Millennium Management New York $240B AUM 35.51% 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

Caption Management's ALT Position: Q1 2026 in Review

Caption Management held its Altimmune (ALT) position steady in Q1 2026 at 74,438 shares worth $229K. The position accounts for ﹤0.01% of the portfolio, ranked #1328.

Caption Management first reported a position in ALT in Q3 2021 and has held it in 11 quarters since. The position peaked at $3.8M in Q2 2025. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

Caption Management held 74,438 shares of Altimmune worth $229K as of Q1 2026.
Caption Management left its Altimmune share count unchanged in Q1 2026.
Altimmune made up ﹤0.01% of Caption Management's portfolio in Q1 2026, its #1328 holding.
Caption Management first reported a position in Altimmune in Q3 2021 and has held it in 11 quarters since.
Caption Management's Altimmune position peaked at $3.8M in Q2 2025.
173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

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