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 Q2	$142K	Sell	46,617 -27,821	-37%	-$83.1K	﹤0.01%	1501
2026 Q1	$229K	Hold	74,438	–	–	﹤0.01%	1328
2025 Q4	$269K	Sell	74,438 -55,562	-43%	-$242K	﹤0.01%	1340
2025 Q3	$490K	Sell	130,000 -850,781	-87%	-$3.28M	﹤0.01%	1306
2025 Q2	$3.8M	Buy	980,781 +941,917	+2,424%	+$5.1M	0.04%	487
2025 Q1	$194K	Buy	+38,864	New	+$246K	﹤0.01%	1277
2023 Q2	–	Sell	-400,000	Closed	-$1.69M	–	1078
2023 Q1	$1.69M	Buy	400,000 +347,896	+668%	+$4.13M	0.03%	493
2022 Q4	$857K	Sell	52,104 -2,896	-5%	-$32.5K	0.01%	800
2022 Q3	$703K	Buy	55,000 +36,193	+192%	+$534K	0.01%	983
2022 Q2	$220K	Buy	+18,807	New	+$116K	﹤0.01%	1219
2022 Q1	–	Sell	-15,519	Closed	-$114K	–	1431
2021 Q4	$142K	Buy	15,519 +519	+3%	+$5.51K	﹤0.01%	1452
2021 Q3	$170K	Buy	+15,000	New	+$182K	﹤0.01%	1366

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.