ALTIMMUNE INC (ALT) is held by 114 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q2 2026.

Are institutions buying or selling ALT?

In Q2 2026, 86 institutions opened or increased positions in ALTIMMUNE INC while 32 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on ALT?

HoldingsIntel scores ALTIMMUNE INC across four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) — with 3 of the 4 carrying data for ALT. In Q2 2026, the institutional leg showed net inflows: 86 buying versus 32 selling.

How many hedge funds hold ALT?

114 institutional investors report holding ALTIMMUNE INC (ALT) as of Q2 2026, based on SEC 13F filings.

Is institutional money flowing into ALT?

As of Q2 2026, tracked institutions in ALTIMMUNE INC show 86 buyers versus 32 sellers — net inflows.

ALTIMMUNE INC

ALT·02155H200·US·Common Stock·Healthcare - Biotechnology-13D/G

114

Holders

(10 Elite)

$323M

Total Value

73% (118)

Consensus

86 buying - 32 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Held by 114 funds

10 elite

Who's Trading

Source dates: Price Oct 15, 2026 · Insiders Oct 5, 2026 · Activists May 15, 2026 · Congress none

InsiderWLWEAVER GREGORY LExercise 14K shOct 1, 2026

InsiderACArbet-Engels ChristopheTax 13K shOct 1, 2026

InsiderWLWEAVER GREGORY LTax 4K shOct 1, 2026

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	Action
BlackRock, Inc.	Increased	20.4M(+59.3%)	$62M	0.0%	-49.33%	42
STATE STREET CORP	Increased	12.1M(+69.3%)	$36.8M	0.0%	-59.11%	43
VAVANGUARD CAPITAL MANAGEMENT LLC	Increased	8.2M(+44.5%)	$24.9M	0.0%	-23.38%	39
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	7.3M(+36.2%)	$22.3M	0.0%	-23.38%	37
MWMARSHALL WACE, LLP	Increased	6.8M(+70.3%)	$20.8M	0.0%	-25.84%	42
VIKING GLOBAL INVESTORS LP	New	6.7M	$20.4M	0.1%	-22.37%	39
RA CAPITAL MANAGEMENT, L.P.	New	6.5M	$19.8M	0.2%	-22.37%	47
GEODE CAPITAL MANAGEMENT, LLC	Increased	5M(+61.3%)	$15.2M	0.0%	-54.04%	41
Woodline Partners LP	New	3.4M	$10.3M	0.0%	-22.37%	38
MILLENNIUM MANAGEMENT LLC	Increased	3.3M(+1.6%)	$10.1M	0.0%	-25.06%	28
Nuveen, LLC	Increased	2.4M(+3.0%)	$7.3M	0.0%	-32.24%	28
TWO SIGMA INVESTMENTS, LP	Decreased	2.4M(-3.9%)	$7.2M	0.0%	-35.79%	0
GOLDMAN SACHS GROUP INC	Increased	2.2M(+64.0%)	$6.7M	0.0%	-55.79%	40
NORTHERN TRUST CORP	Increased	1.6M(+60.5%)	$4.9M	0.0%	-53.84%	39
VFVANGUARD FIDUCIARY TRUST CO	Increased	1.3M(+48.7%)	$3.9M	0.0%	-23.38%	37
AQR CAPITAL MANAGEMENT LLC	Increased	1.2M(+1328.8%)	$3.7M	0.0%	-22.83%	43
CITADEL ADVISORS LLC	Increased	983,559(+119.1%)	$3M	0.0%	-33.74%	43
UBS Group AG	Decreased	866,385(-4.2%)	$2.6M	0.0%	-60.17%	0
MORGAN STANLEY	Decreased	758,435(-2.2%)	$2.3M	0.0%	-53.27%	0
BANK OF AMERICA CORP /DE/	Increased	757,919(+32.9%)	$2.3M	0.0%	-47.80%	33

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer

ALTIMMUNE INC

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