Altimmune, Inc. (ALT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

89,418,028Shares Outstanding
54,832,619Shares held by institutions
$155,724,633Value of institutional holdings
61.32%Institutional ownership %
34.52%Shares Changed QoQ
180No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Altimmune, Inc. (NASDAQ:ALT) showed up in the 13F filings of 180 institutional investors as of December 2025.

169 Institutional Holders

54,832,619 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
BlackRock, Inc. 31 Mar, 2026 12,795,277 3,090,979 31.85% $39,409,453.00
State Street Corp 31 Mar, 2026 7,145,550 2,025,847 39.57% $22,008,294.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 5,658,049 5,658,049 0.00% $17,426,791.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 5,382,002 5,382,002 0.00% $16,576,566.00
MARSHALL WACE, LLP 31 Mar, 2026 4,017,901 3,095,124 335.41% $12,375,135.00
MILLENNIUM MANAGEMENT LLC 31 Mar, 2026 3,258,191 3,050,808 1,471.10% $10,035,228.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 3,107,096 814,686 35.54% $9,572,306.00
Alyeska Investment Group, L.P. 31 Mar, 2026 2,644,600 2,644,600 0.00% $8,145,368.00
TWO SIGMA INVESTMENTS, LP 31 Mar, 2026 2,478,900 1,213,217 95.85% $7,635,012.00
Nuveen, LLC 31 Mar, 2026 2,334,601 1,090,390 87.64% $7,190,571.00
Goldman Sachs Group Inc 31 Mar, 2026 1,350,649 -1,347,937 -49.95% $4,159,999.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP 31 Mar, 2026 1,325,956 -43,061 -3.15% $4,083,944.00
DIMENSIONAL FUND ADVISORS LP 31 Mar, 2026 1,045,926 762,223 268.67% $3,220,757.00
Northern Trust Corp 31 Mar, 2026 996,721 280,730 39.21% $3,069,900.00
UBS Group AG 31 Mar, 2026 904,768 262,720 40.92% $2,786,685.00
VANGUARD FIDUCIARY TRUST CO 31 Mar, 2026 869,318 869,318 0.00% $2,677,499.00
Morgan Stanley 31 Mar, 2026 775,258 -584,627 -42.99% $2,387,794.00
D. E. Shaw & Co., Inc. 31 Mar, 2026 727,001 -616,582 -45.89% $2,239,163.00
FMR LLC 31 Mar, 2026 673,964 109,871 19.48% $2,075,808.00
SCHRODER INVESTMENT MANAGEMENT GROUP 31 Mar, 2026 667,837 198,824 42.39% $1,923,371.00