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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.

13F holders, Q1 2022

Institutional positions in Altimmune, Inc. as of Mar 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
103
+1 vs. Q4 2021
Shares held
33.7M
+1.18M (+3.6%) vs. Q4 2021
Total value
$207.4M
−$88.4M (−29.9%) vs. Q4 2021
New holders
20
35 more added
Sold out
19
31 more reduced

Compare with Q4 2021: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ALT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2022: 103 institutions
Q1 2021: 98 institutionsQ2 2021: 109 institutionsQ3 2021: 119 institutionsQ4 2021: 102 institutionsQ1 2022: 103 institutionsQ2 2022: 111 institutionsQ3 2022: 122 institutionsQ4 2022: 128 institutionsQ1 2023: 133 institutionsQ2 2023: 120 institutionsQ3 2023: 113 institutionsQ4 2023: 143 institutionsQ1 2024: 171 institutionsQ2 2024: 173 institutionsQ3 2024: 169 institutionsQ4 2024: 183 institutionsQ1 2025: 177 institutionsQ2 2025: 180 institutionsQ3 2025: 159 institutionsQ4 2025: 183 institutionsQ1 2026: 173 institutionsQ2 2026: 210 institutions
Value heldQ1 2022: $207.4M
Q1 2021: $336.5MQ2 2021: $269.2MQ3 2021: $375.3MQ4 2021: $295.8MQ1 2022: $207.4MQ2 2022: $466.9MQ3 2022: $588.1MQ4 2022: $769.9MQ1 2023: $205.4MQ2 2023: $124.5MQ3 2023: $79.2MQ4 2023: $377.1MQ1 2024: $452.2MQ2 2024: $282.1MQ3 2024: $243.0MQ4 2024: $292.3MQ1 2025: $191.2MQ2 2025: $145.5MQ3 2025: $156.4MQ4 2025: $198.8MQ1 2026: $213.5MQ2 2026: $456.1M
Institutions holding ALT and their total value by quarter
QuarterHoldersValue
Q2 2026210$456.1M
Q1 2026173$213.5M
Q4 2025183$198.8M
Q3 2025159$156.4M
Q2 2025180$145.5M
Q1 2025177$191.2M
Q4 2024183$292.3M
Q3 2024169$243.0M
Q2 2024173$282.1M
Q1 2024171$452.2M
Q4 2023143$377.1M
Q3 2023113$79.2M
Q2 2023120$124.5M
Q1 2023133$205.4M
Q4 2022128$769.9M
Q3 2022122$588.1M
Q2 2022111$466.9M
Q1 2022103$207.4M
Q4 2021102$295.8M
Q3 2021119$375.3M
Q2 2021109$269.2M
Q1 202198$336.5M

Institutions, Q1 2022

Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q4 2021.

Institutions holding ALT in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Advisor Group Holdings, Inc.6$00.00%−544−98.9%Reduced
Parallel Advisors, LLC54$00.00%−371−87.3%Reduced
Huntington National Bank2$00.00%00.0%Unchanged
Glassman Wealth Services1$00.00%+1New
TCWP LLC120$00.00%+120New
Northwestern Mutual Wealth Management Co100$1.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.136$1.00K0.00%00.0%Unchanged
Providence Capital Advisors, LLC125$1.00K0.00%00.0%Unchanged
American Portfolios Advisors250$1.52K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.372$2.00K0.00%00.0%Unchanged
Fifth Third Bancorp250$2.00K0.00%00.0%Unchanged
FMR LLC508$3.00K0.00%+508New
First Horizon Advisors, Inc.1,038$6.00K0.00%+927+835.1%Added
US Bancorp1,093$7.00K0.00%+1,093New
Banque Cantonale Vaudoise1,500$9.00K0.00%00.0%Unchanged
Toronto Dominion Bank1,631$10.0K0.00%+1,631New
UBS Group AG2,008$12.0K0.00%−172,840−98.9%Reduced
Royal Bank of Canada2,594$16.0K0.00%−6,018−69.9%Reduced
Metropolitan Life Insurance Co2,806$17.1K0.00%−8,245−74.6%Reduced
Legal & General Group Plc3,166$19.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.3,098$19.0K0.00%00.0%Unchanged
Point72 Hong Kong Ltd4,218$26.0K0.00%−1,178−21.8%Reduced
Amalgamated Bank4,793$29.0K0.00%+4,793New
Amalgamated Financial Corp.4,793$29.0K0.00%+4,793New
AdvisorNet Financial, Inc6,089$37.0K0.00%−8,552−58.4%Reduced
BNP Paribas Arbitrage, SA8,836$53.8K0.00%−50,751−85.2%Reduced
Argent Trust Co10,000$61.0K0.00%00.0%Unchanged
Jump Financial, LLC10,200$62.0K0.00%−35,200−77.5%Reduced
Atom Investors LP10,109$62.0K0.03%+10,109New
Graham Capital Management, L.P.10,345$63.0K0.00%+10,345New
State Board of Administration of Florida Retirement System10,752$65.0K0.00%00.0%Unchanged
ProShare Advisors LLC11,650$71.0K0.00%−3,627−23.7%Reduced
Wells Fargo & Company11,822$72.0K0.00%−16,058−57.6%Reduced
ETF Managers Group, LLC12,054$73.0K0.00%−13−0.1%Reduced
Invesco Ltd.12,318$75.0K0.00%+487+4.1%Added
Engineers Gate Manager LP14,365$87.0K0.00%+14,365New
Voya Investment Management LLC14,510$88.0K0.00%00.0%Unchanged
Schonfeld Strategic Advisors LLC16,500$101.0K0.00%−1,400−7.8%Reduced
Bayesian Capital Management, LP16,800$102.0K0.02%+16,800New
California State Teachers Retirement System16,943$103.0K0.00%−4,475−20.9%Reduced
Dynamic Technology Lab Private Ltd17,355$106.0K0.01%+17,355New
Manufacturers Life Insurance Company, The17,640$107.4K0.00%−3,972−18.4%Reduced
Tower Research Capital LLC (TRC)17,825$108.0K0.00%−6,855−27.8%Reduced
Cetera Advisors LLC18,500$113.0K0.00%+18,500New
American International Group, Inc.19,680$120.0K0.00%−1,386−6.6%Reduced
XTX Topco Ltd19,665$120.0K0.05%+4,898+33.2%Added
MML Investors Services, LLC20,000$122.0K0.00%00.0%Unchanged
MetLife Investment Management21,184$129.0K0.00%+8,385+65.5%Added
Deutsche Bank AG21,646$132.0K0.00%−2,438−10.1%Reduced
New York State Common Retirement Fund21,631$132.0K0.00%+60.0%Added
Bank of America Corp22,838$140.0K0.00%−202,732−89.9%Reduced
ExodusPoint Capital Management, LP26,351$160.0K0.00%+26,351New
Apollon Wealth Management, LLC26,483$161.0K0.01%−14,100−34.7%Reduced
Gsa Capital Partners LLP29,483$180.0K0.02%−19,514−39.8%Reduced
Vahanian & Associates Financial Planning Inc.31,426$191.0K0.44%+31,426New
Price T Rowe Associates Inc39,053$238.0K0.00%+834+2.2%Added
Alps Advisors Inc40,836$249.0K0.00%−5,148−11.2%Reduced
Jane Street Group, LLC46,734$285.0K0.00%+8,680+22.8%Added
Group One Trading, L.P.49,406$301.0K0.01%+1,602+3.4%Added
Rhumbline Advisers50,234$306.0K0.00%+2,094+4.3%Added
Silvercrest Asset Management Group LLC62,500$381.0K0.00%+62,500New
Dimensional Fund Advisors LP72,702$443.0K0.00%−5,768−7.4%Reduced
Cubist Systematic Strategies, LLC89,485$545.0K0.00%−1,906−2.1%Reduced
Squarepoint Ops LLC94,627$576.0K0.00%+80,246+558.0%Added
Trexquant Investment LP99,269$605.0K0.03%+15,134+18.0%Added
Charles Schwab Investment Management Inc104,222$635.0K0.00%+3,402+3.4%Added
PDT Partners, LLC124,377$757.0K0.07%+5,501+4.6%Added
Susquehanna International Group, LLP125,219$763.0K0.00%−11,432−8.4%Reduced
Knoll Capital Management, LLC132,978$810.0K0.51%00.0%Unchanged
Canada Pension Plan Investment Board182,000$1.11M0.00%+182,000New
Beirne Wealth Consulting Services, LLC183,840$1.12M0.62%+47,000+34.3%Added
Norges Bank189,600$1.15M0.00%00.0%Unchanged
Bank of New York Mellon Corp197,247$1.20M0.00%−2,949−1.5%Reduced
Walleye Capital LLC211,753$1.29M0.04%+139,449+192.9%Added
HRT Financial LP222,368$1.35M0.01%+222,368New
JPMorgan Chase & Co307,589$1.87M0.00%+122,021+65.8%Added
Parkman Healthcare Partners LLC309,586$1.89M0.55%+46,112+17.5%Added
DCF Advisers, LLC316,000$1.92M1.13%+35,300+12.6%Added
Altium Capital Management LP322,000$1.96M0.68%+322,000New
Northern Trust Corp360,127$2.19M0.00%−16,357−4.3%Reduced
Renaissance Technologies LLC388,700$2.37M0.00%+321,900+481.9%Added
Alliancebernstein L.P.495,061$3.02M0.00%+140,664+39.7%Added
Two Sigma Investments, LP604,420$3.68M0.01%+27,998+4.9%Added
Geode Capital Management, LLC641,821$3.91M0.00%+8,777+1.4%Added
Two Sigma Advisers, LP690,800$4.21M0.01%+133,600+24.0%Added
State Street Corp691,141$4.21M0.00%−3,730,400−84.4%Reduced
Millennium Management LLC697,160$4.25M0.01%+588,302+540.4%Added
Goldman Sachs Group Inc728,869$4.44M0.00%+243,450+50.2%Added
VR Adviser, LLC759,719$4.63M0.75%+759,719New
Citigroup Inc790,127$4.81M0.01%−276,268−25.9%Reduced
Woodline Partners LP846,618$5.16M0.09%+225,940+36.4%Added
D. E. Shaw & Co., Inc.967,736$5.89M0.01%−213,501−18.1%Reduced
Baker Bros. Advisors LP1,072,038$6.53M0.04%00.0%Unchanged
Citadel Advisors LLC1,124,407$6.85M0.01%+86,453+8.3%Added
Barclays PLC1,155,281$7.04M0.01%+60,221+5.5%Added
Sphera Funds Management Ltd.1,306,953$7.96M1.33%+62,712+5.0%Added
Ardsley Advisory Partners LP1,353,000$8.24M1.70%+299,000+28.4%Added
Morgan Stanley1,407,939$8.57M0.00%+255,596+22.2%Added
Vanguard Group Inc1,816,915$11.1M0.00%+83,160+4.8%Added
Tang Capital Management LLC2,573,744$15.7M3.17%+973,744+60.9%Added