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 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 $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

Canada Pension Plan Investment Board's ALT Position: Q1 2026 in Review

Canada Pension Plan Investment Board increased its Altimmune (ALT) stake by 78% in Q1 2026, buying an estimated $98.9K and bringing the position to 53,300 shares worth $164K. The position accounts for ﹤0.01% of the portfolio, ranked #1601.

Canada Pension Plan Investment Board first reported a position in ALT in Q3 2021 and has held it in 4 quarters since. The position peaked at $3.39M in Q3 2021. 173 funds tracked by Wall St. Rank hold ALT as of Q1 2026.

Canada Pension Plan Investment Board held 53,300 shares of Altimmune worth $164K as of Q1 2026.
Canada Pension Plan Investment Board bought 23,300 Altimmune shares in Q1 2026, an estimated $98.9K.
Altimmune made up ﹤0.01% of Canada Pension Plan Investment Board's portfolio in Q1 2026, its #1601 holding.
Canada Pension Plan Investment Board first reported a position in Altimmune in Q3 2021 and has held it in 4 quarters since.
Canada Pension Plan Investment Board's Altimmune position peaked at $3.39M in Q3 2021.
173 funds tracked by Wall St. Rank held Altimmune as of Q1 2026.

Based on Canada Pension Plan Investment Board's 13F filing for Q1 2026, filed 15 May 2026.