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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.

Q2 2023 vs. Q1 2023

How the institutions holding Altimmune, Inc. changed between Q1 2023 and Q2 2023.

All holders in Q2 2023All holders in Q1 2023

13F holders of ALT: Q1 2023 compared with Q2 2023
MeasureQ1 2023Of which not filed for Q2 2023Q2 2023Change
Holders1331120−12
Shares43.4M16.4K35.3M−8.12M (−18.7%)
Value$205.4M$69.0K$124.5M−$80.9M (−39.4%)

1 institution that held it in Q1 2023 haven't filed for Q2 2023 yet. Not filing isn't selling, so the changes leave them out.

New holders (30)

Institutions that held Altimmune, Inc. at the end of Q2 2023 but not at the end of Q1 2023.

Institutions new to ALT in Q2 2023
InstitutionSharesValue% of portfolio
D. E. Shaw & Co., Inc.504,238$1.78M0.00%
Graham Capital Management, L.P.143,429$506.3K0.02%
Bridgeway Capital Management, LLC131,700$464.9K0.01%
Rhumbline Advisers75,072$265.0K0.00%
Simplex Trading, LLC48,336$170.0K0.01%
Alliancebernstein L.P.47,140$166.4K0.00%
Corton Capital Inc.41,113$145.1K0.07%
Invesco Ltd.28,073$99.1K0.00%
Engineers Gate Manager LP27,475$97.0K0.00%
MetLife Investment Management26,315$92.9K0.00%
EWG Elevate Inc.26,000$91.8K0.04%
New York State Common Retirement Fund24,100$85.1K0.00%
American International Group, Inc.23,791$84.0K0.00%
Aviva PLC22,954$81.0K0.00%
Tudor Investment Corp Et Al22,501$79.4K0.00%
Delphia (USA) Inc.21,205$74.9K0.12%
Manufacturers Life Insurance Company, The20,569$72.6K0.00%
Allspring Global Investments Holdings, LLC19,842$70.0K0.00%
Voya Investment Management LLC19,629$69.3K0.00%
State Board of Administration of Florida Retirement System14,030$49.5K0.00%
Aigen Investment Management, LP11,712$41.3K0.01%
American Century Companies Inc11,171$39.4K0.00%
Wolverine Trading, LLC10,553$36.9K0.00%
Amalgamated Bank4,808$17.0K0.00%
Ameritas Investment Partners, Inc.4,082$14.4K0.00%
Metropolitan Life Insurance Co2,727$9.63K0.00%
Umb Bank N A2,368$8.36K0.00%
Proequities, Inc.100$3530.00%
Harbour Investments, Inc.100$3530.00%
Sofos Investments, Inc.4$90.00%

Sold out (42)

Institutions that held Altimmune, Inc. at the end of Q1 2023 and filed for Q2 2023 without it.

Institutions that sold out of ALT in Q2 2023
InstitutionShares, Q1 2023Value, Q1 2023
Ikarian Capital, LLC677,300$2.86M
Tri Locum Partners LP528,814$2.23M
Rafferty Asset Management, LLC516,563$2.18M
Sectoral Asset Management Inc479,100$2.02M
Occudo Quantitative Strategies LP434,048$1.83M
Caption Management, LLC400,000$1.69M
Boothbay Fund Management, LLC175,860$742.1K
HRT Financial LP164,768$695.0K
Swiss National Bank106,100$447.7K
Profund Advisors LLC93,919$396.3K
LMR Partners LLP76,976$324.8K
Arete Wealth Advisors, LLC28,427$322.0K
Verition Fund Management LLC60,657$256.0K
NinePointTwo Capital60,482$255.0K
HAP Trading, LLC52,113$220.0K
Brookfield Asset Management Inc.47,785$201.7K
Ergoteles LLC42,122$177.8K
Credit Suisse AG41,372$174.6K
Two Sigma Securities, LLC33,495$141.3K
Y-Intercept (Hong Kong) Ltd32,695$138.0K
Fox Run Management, L.L.C.30,435$128.4K
Landscape Capital Management, L.L.C.30,066$126.9K
E Fund Management Co., Ltd.29,334$124.0K
SeaCrest Wealth Management, LLC27,353$115.4K
Janus Henderson Group PLC23,986$101.5K
AQR Capital Management LLC21,662$91.4K
Vahanian & Associates Financial Planning Inc.21,430$90.4K
XTX Topco Ltd21,271$89.8K
Diametric Capital, LP19,356$81.7K
Teacher Retirement System of Texas15,144$64.0K
Arizona State Retirement System14,244$60.1K
683 Capital Management, LLC14,000$59.1K
Point72 Asset Management, L.P.13,987$59.0K
Boulder Hill Capital Management LP11,800$49.8K
Virtus ETF Advisers LLC9,389$39.6K
PEAK6 Investments LLC2,600$11.0K
Great West Life Assurance Co2,465$10.0K
Quantbot Technologies LP2,077$8.77K
US Bancorp500$2.11K
TCI Wealth Advisors, Inc.166$701
Capstone Investment Advisors, LLC86$363
Acadian Asset Management LLC1$0

Not filed for Q2 2023 yet (1)

Institutions that held Altimmune, Inc. at the end of Q1 2023 and haven't filed a 13F for Q2 2023. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALT in Q1 2023 that haven't filed for Q2 2023
InstitutionShares, Q1 2023Value, Q1 2023
ETF Managers Group, LLC16,361$69.0K