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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, Q2 2024

Institutional positions in Altimmune, Inc. as of Jun 30, 2024. 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
173
+5 vs. Q1 2024
Shares held
42.4M
−1.81M (−4.1%) vs. Q1 2024
Total value
$282.1M
−$168.1M (−37.3%) vs. Q1 2024
New holders
45
53 more added
Sold out
40
47 more reduced

3 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2024: 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 holdersQ2 2024: 173 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 heldQ2 2024: $282.1M
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, Q2 2024

Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q1 2024.

Institutions holding ALT in Q2 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Cornerstone Planning Group LLC1$60.00%00.0%Unchanged
Huntington National Bank2$130.00%00.0%Unchanged
First Horizon Advisors, Inc.3$200.00%00.0%Unchanged
Rothschild Investment LLC20$1330.00%+20New
Farther Finance Advisors, LLC19$1370.00%−77−80.2%Reduced
Parallel Advisors, LLC40$2660.00%00.0%Unchanged
CoreCap Advisors, LLC71$4720.00%+71New
Proequities, Inc.100$6650.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co100$6650.00%00.0%Unchanged
AdvisorNet Financial, Inc100$6650.00%00.0%Unchanged
Innealta Capital, LLC110$7320.00%+110New
Planning Capital Management Corp110$7320.00%+110New
SRS Capital Advisors, Inc.133$8850.00%+133New
CWM, LLC224$1.00K0.00%+220+5,500.0%Added
Nisa Investment Advisors, LLC177$1.18K0.00%+35+24.6%Added
IFP Advisors, Inc200$1.33K0.00%+200New
Fifth Third Bancorp250$1.66K0.00%00.0%Unchanged
First Command Advisory Services, Inc.250$1.66K0.00%+250New
Main Street Group, LTD277$1.99K0.00%−170−38.0%Reduced
Stone House Investment Management, LLC500$3.33K0.00%00.0%Unchanged
US Bancorp750$4.99K0.00%−19,067−96.2%Reduced
Banque Cantonale Vaudoise800$5.00K0.00%00.0%Unchanged
Hollencrest Capital Management770$5.12K0.00%+770New
Optiver Holding B.V.890$5.92K0.00%+890New
Penserra Capital Management LLC882$6.00K0.00%+882New
Citadel Advisors LLC1,021$6.79K0.00%−75,046−98.7%Reduced
Sunbelt Securities, Inc.1,140$7.58K0.00%+1,140New
Pacer Advisors, Inc.1,260$8.38K0.00%−2,899−69.7%Reduced
Amalgamated Bank1,667$11.0K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.1,993$13.3K0.00%−216−9.8%Reduced
Activest Wealth Management2,001$13.3K0.00%+2,001New
Global Retirement Partners, LLC2,100$14.0K0.00%+2,000+2,000.0%Added
GAMMA Investing LLC3,219$21.4K0.00%+3,153+4,777.3%Added
Advisor Group Holdings, Inc.3,270$21.7K0.00%−63,965−95.1%Reduced
STRS Ohio4,300$28.6K0.00%00.0%Unchanged
Great West Life Assurance Co4,354$29.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.5,470$36.4K0.00%00.0%Unchanged
HighTower Advisors, LLC5,864$39.0K0.00%+5,864New
Catalyst Funds Management Pty Ltd6,500$43.2K0.01%−7,300−52.9%Reduced
FMR LLC7,894$52.5K0.00%−3,218−29.0%Reduced
Russell Investments Group, Ltd.8,484$56.4K0.00%+4,107+93.8%Added
Wealth Enhancement Advisory Services, LLC9,640$64.1K0.00%+9,640New
Brave Asset Management Inc10,000$66.5K0.02%00.0%Unchanged
Horizon Wealth Management, LLC10,000$66.5K0.02%+10,000New
Stifel Financial Corp10,006$66.5K0.00%+10,006New
BNP Paribas Arbitrage, SA10,068$67.0K0.00%−22,357−68.9%Reduced
PFG Investments, LLC10,100$67.2K0.00%+10,100New
Sequoia Financial Advisors, LLC10,155$67.5K0.00%00.0%Unchanged
WealthPLAN Partners, LLC10,204$67.9K0.01%00.0%Unchanged
Principal Financial Group Inc10,590$70.4K0.00%+10,590New
Private Portfolio Partners LLC11,600$77.1K0.06%+11,600New
Kestra Advisory Services, LLC11,979$79.7K0.00%+11,979New
Creative Planning12,279$81.7K0.00%+500+4.2%Added
Teza Capital Management LLC12,370$82.3K0.01%+44+0.4%Added
Cetera Investment Advisers13,032$86.7K0.00%−52,304−80.1%Reduced
Atria Investments LLC13,060$86.8K0.00%+13,060New
North Star Investment Management Corp.13,100$87.1K0.01%+10,100+336.7%Added
American Century Companies Inc13,193$87.7K0.00%−65,461−83.2%Reduced
Millennium Management LLC13,355$88.8K0.00%−1,576,795−99.2%Reduced
Steward Partners Investment Advisory, LLC13,450$89.4K0.00%+6,300+88.1%Added
E Fund Management Co., Ltd.13,458$89.5K0.00%−28,251−67.7%Reduced
State Board of Administration of Florida Retirement System13,724$91.3K0.00%+13,724New
XTX Topco Ltd14,378$95.6K0.01%+14,378New
Zurcher Kantonalbank (Zurich Cantonalbank)14,688$97.7K0.00%+9,635+190.7%Added
Teacher Retirement System of Texas15,512$103.0K0.00%+3,550+29.7%Added
DRW Securities, LLC16,771$111.5K0.01%+16,771New
Miracle Mile Advisors, LLC17,000$113.0K0.00%00.0%Unchanged
ExodusPoint Capital Management, LP17,510$116.0K0.00%−63,403−78.4%Reduced
PEAK6 Investments LLC18,400$122.4K0.01%+18,400New
Connor, Clark & Lunn Investment Management Ltd.18,517$123.1K0.00%+18,517New
Janney Montgomery Scott LLC19,480$130.0K0.00%+19,480New
Arizona State Retirement System19,847$132.0K0.00%+5,081+34.4%Added
Integrated Wealth Concepts LLC20,000$133.0K0.00%00.0%Unchanged
Jefferies Financial Group Inc.20,000$133.0K0.00%+20,000New
Vivaldi Capital Management, LLC20,000$133.0K0.04%+20,000New
Tower Research Capital LLC (TRC)20,591$136.9K0.00%+9,906+92.7%Added
National Asset Management, Inc.20,767$138.1K0.00%+20,767New
Independent Advisor Alliance21,200$141.0K0.00%−800−3.6%Reduced
New York State Common Retirement Fund21,447$142.6K0.00%+104+0.5%Added
Raymond James & Associates21,991$146.2K0.00%−99,146−81.8%Reduced
Price T Rowe Associates Inc22,668$151.0K0.00%+7,430+48.8%Added
Schonfeld Strategic Advisors LLC22,738$151.2K0.00%−78,688−77.6%Reduced
GWM Advisors LLC22,932$152.5K0.00%−18,518−44.7%Reduced
Aviva PLC22,954$152.6K0.00%00.0%Unchanged
Walleye Capital LLC23,000$152.9K0.00%−11,813−33.9%Reduced
PVG Asset Management Corp23,121$153.8K0.61%+23,121New
Entropy Technologies, LP24,635$163.8K0.02%−9,892−28.7%Reduced
Manufacturers Life Insurance Company, The26,973$179.4K0.00%+6,339+30.7%Added
Wolverine Trading, LLC27,434$182.4K0.00%−4,495−14.1%Reduced
Farallon Capital Management, L.L.C.27,600$183.5K0.00%−442,400−94.1%Reduced
Summit Financial Wealth Advisors, LLC27,805$184.9K0.04%+27,805New
Envestnet Asset Management Inc27,816$185.0K0.00%−8,717−23.9%Reduced
Invesco Ltd.30,743$204.4K0.00%+2,986+10.8%Added
Royal Bank of Canada31,012$205.0K0.00%−8,863−22.2%Reduced
Janus Henderson Group PLC32,000$212.5K0.00%+32,000New
Brevan Howard Capital Management LP32,454$215.8K0.01%+32,454New
Trexquant Investment LP35,113$233.5K0.00%+35,113New
Mirae Asset Global ETFs Holdings Ltd.36,002$237.2K0.00%+36,002New
Citigroup Inc36,385$242.0K0.00%−706,528−95.1%Reduced
Wealth Effects LLC37,550$249.7K0.09%+22,850+155.4%Added