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 $6.73T AUM 46.02% 1-Year Est. Return

DTC

Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

TCM

TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Caption Management's ALT Position: Q2 2026 in Review

Caption Management reduced its Altimmune (ALT) stake by 37% in Q2 2026, selling an estimated $83.1K and leaving 46,617 shares worth $142K. The position accounts for ﹤0.01% of the portfolio, ranked #1501.

Caption Management first reported a position in ALT in Q3 2021 and has held it in 12 quarters since. The position peaked at $3.8M in Q2 2025. 210 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

Caption Management held 46,617 shares of Altimmune worth $142K as of Q2 2026.
Caption Management sold 27,821 Altimmune shares in Q2 2026, an estimated $83.1K.
Altimmune made up ﹤0.01% of Caption Management's portfolio in Q2 2026, its #1501 holding.
Caption Management first reported a position in Altimmune in Q3 2021 and has held it in 12 quarters since.
Caption Management's Altimmune position peaked at $3.8M in Q2 2025.
210 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on Caption Management's 13F filing for Q2 2026, filed 14 Aug 2026.