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Altimmune, Inc.

ALT
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001326190

In the last 90 days, Altimmune, Inc. insiders filed 1 open-market purchase and 0 sales; 210 institutions reported holding it in 13F filings for Q2 2026, worth $456.1M in total; Viking Global Investors is the only superinvestor holding it.

Q3 2021 vs. Q2 2021

How the institutions holding Altimmune, Inc. changed between Q2 2021 and Q3 2021.

All holders in Q3 2021All holders in Q2 2021

13F holders of ALT: Q2 2021 compared with Q3 2021
MeasureQ2 2021Of which not filed for Q3 2021Q3 2021Change
Holders1091119+11
Shares27.3M1.02K32.9M+5.63M (+20.7%)
Value$269.2M$10.0K$375.3M+$106.2M (+39.5%)

1 institution that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (26)

Institutions that held Altimmune, Inc. at the end of Q3 2021 but not at the end of Q2 2021.

Institutions new to ALT in Q3 2021
InstitutionSharesValue% of portfolio
Avidity Partners Management LP2,167,900$24.5M0.63%
Marshall Wace North America L.P.791,606$8.95M0.04%
Logos Global Management LP700,000$7.92M0.57%
Woodline Partners LP348,823$3.94M0.07%
Canada Pension Plan Investment Board300,000$3.39M0.00%
Acuta Capital Partners, LLC150,000$1.70M0.60%
Millennium Management LLC138,254$1.56M0.00%
HAP Trading, LLC104,491$1.18M0.09%
State Board of Administration of Florida Retirement System85,759$970.0K0.00%
Schonfeld Strategic Advisors LLC66,600$754.0K0.01%
ETF Managers Group, LLC52,012$664.0K0.01%
Parallax Volatility Advisers, L.P.57,130$646.0K0.01%
DekaBank Deutsche Girozentrale50,000$626.0K0.00%
Connor, Clark & Lunn Investment Management Ltd.40,435$457.0K0.00%
LMR Partners LLP40,249$455.0K0.01%
SG Americas Securities, LLC26,981$305.0K0.00%
Brookfield Asset Management Inc.26,593$301.0K0.00%
Campbell & CO Investment Adviser LLC23,300$264.0K0.09%
Belvedere Trading LLC20,005$244.0K0.07%
Trexquant Investment LP18,044$204.0K0.02%
Atom Investors LP16,977$192.0K0.04%
Winton Group Ltd15,751$178.0K0.01%
Envestnet Asset Management Inc15,168$172.0K0.00%
Caption Management, LLC15,000$170.0K0.01%
Fox Run Management, L.L.C.11,165$126.0K0.08%
Ellevest, Inc.5$00.00%

Sold out (15)

Institutions that held Altimmune, Inc. at the end of Q2 2021 and filed for Q3 2021 without it.

Institutions that sold out of ALT in Q3 2021
InstitutionShares, Q2 2021Value, Q2 2021
Point72 Asset Management, L.P.1,564,654$15.4M
Capital World Investors692,604$6.82M
Integral Health Asset Management, LLC160,000$1.58M
Cubist Systematic Strategies, LLC69,300$683.0K
MYDA Advisors LLC60,000$591.0K
CSS LLC35,073$345.0K
AXA S.A.32,600$321.0K
Engineers Gate Manager LP13,929$137.0K
Raymond James & Associates11,786$116.0K
Simplex Trading, LLC6,985$68.0K
Global Retirement Partners, LLC4,362$43.0K
SG3 Management, LLC3,000$30.0K
IFP Advisors, Inc2,227$20.0K
Panagora Asset Management Inc122$1.00K
FMR LLC1$0

Not filed for Q3 2021 yet (1)

Institutions that held Altimmune, Inc. at the end of Q2 2021 and haven't filed a 13F for Q3 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALT in Q2 2021 that haven't filed for Q3 2021
InstitutionShares, Q2 2021Value, Q2 2021
CWM, LLC1,025$10.0K