Canada Pension Plan Investment Board’s Altimmune ALT Stock Holding History

Canada Pension Plan Investment Board’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	$265K	Buy	87,300 +34,000	+64%	+$102K	﹤0.01%	1503
2026 Q1	$164K	Buy	53,300 +23,300	+78%	+$98.9K	﹤0.01%	1601
2025 Q4	$108K	Buy	+30,000	New	+$131K	﹤0.01%	1795
2022 Q2	–	Sell	-182,000	Closed	-$1.11M	–	1248
2022 Q1	$1.11M	Buy	+182,000	New	+$1.34M	﹤0.01%	826
2021 Q4	–	Sell	-300,000	Closed	-$3.39M	–	1441
2021 Q3	$3.39M	Buy	+300,000	New	+$3.65M	﹤0.01%	749

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 $3.38T AUM 44.17% 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

Canada Pension Plan Investment Board's ALT Position: Q2 2026 in Review

Canada Pension Plan Investment Board increased its Altimmune (ALT) stake by 64% in Q2 2026, buying an estimated $102K and bringing the position to 87,300 shares worth $265K. The position accounts for ﹤0.01% of the portfolio, ranked #1503.

Canada Pension Plan Investment Board first reported a position in ALT in Q3 2021 and has held it in 5 quarters since. The position peaked at $3.39M in Q3 2021. 210 funds tracked by Wall St. Rank hold ALT as of Q2 2026.

Canada Pension Plan Investment Board held 87,300 shares of Altimmune worth $265K as of Q2 2026.
Canada Pension Plan Investment Board bought 34,000 Altimmune shares in Q2 2026, an estimated $102K.
Altimmune made up ﹤0.01% of Canada Pension Plan Investment Board's portfolio in Q2 2026, its #1503 holding.
Canada Pension Plan Investment Board first reported a position in Altimmune in Q3 2021 and has held it in 5 quarters since.
Canada Pension Plan Investment Board's Altimmune position peaked at $3.39M in Q3 2021.
210 funds tracked by Wall St. Rank held Altimmune as of Q2 2026.

Based on Canada Pension Plan Investment Board's 13F filing for Q2 2026, filed 14 Aug 2026.