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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 2021

Institutional positions in Altimmune, Inc. as of Jun 30, 2021. 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
109
+11 vs. Q1 2021
Shares held
27.3M
+3.43M (+14.4%) vs. Q1 2021
Total value
$269.2M
−$67.4M (−20.0%) vs. Q1 2021
New holders
42
29 more added
Sold out
31
21 more reduced

Compare with Q1 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 holdersQ2 2021: 109 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 2021: $269.2M
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 2021

Shares, value and share of portfolio for each institution holding Altimmune, Inc.; share changes are against Q1 2021.

Institutions holding ALT in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Harbour Investments, Inc.2$00.00%00.0%Unchanged
FMR LLC1$00.00%+1New
First Horizon Advisors, Inc.42$00.00%+42New
Panagora Asset Management Inc122$1.00K0.00%00.0%Unchanged
Providence Capital Advisors, LLC125$1.00K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co100$1.00K0.00%00.0%Unchanged
Daiwa Securities Group Inc.62$1.00K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc137$1.00K0.00%+137New
Proequities, Inc.200$2.00K0.00%00.0%Unchanged
Fifth Third Bancorp250$2.00K0.00%+250New
State of Wyoming232$2.00K0.00%+232New
Toth Financial Advisory Corp300$3.00K0.00%00.0%Unchanged
Cutler Group LP320$3.00K0.00%00.0%Unchanged
Atlas Private Wealth Advisors300$3.00K0.00%00.0%Unchanged
Huntington National Bank334$3.00K0.00%+334New
Godsey & Gibb Associates611$6.00K0.00%+611New
Private Capital Group, LLC593$6.00K0.00%+593New
Parallel Advisors, LLC734$7.00K0.00%00.0%Unchanged
American Portfolios Advisors750$7.39K0.00%00.0%Unchanged
Penserra Capital Management LLC875$8.00K0.00%+30+3.6%Added
The PNC Financial Services Group, Inc.867$9.00K0.00%+495+133.1%Added
CWM, LLC1,025$10.0K0.00%00.0%Unchanged
IFP Advisors, Inc2,227$20.0K0.00%−2,372−51.6%Reduced
Banque Cantonale Vaudoise1,500$24.0K0.00%00.0%Unchanged
Ameritas Investment Partners, Inc.2,548$25.0K0.00%+2,548New
Legal & General Group Plc2,594$26.0K0.00%+2,594New
Advisor Group Holdings, Inc.2,965$29.0K0.00%−8,898−75.0%Reduced
SG3 Management, LLC3,000$30.0K0.01%+500+20.0%Added
Patriot Financial Group Insurance Agency, LLC3,350$33.0K0.01%−7,100−67.9%Reduced
BNP Paribas Arbitrage, SA3,421$33.7K0.00%−35,541−91.2%Reduced
Royal Bank of Canada3,987$39.0K0.00%+3,800+2,032.1%Added
Global Retirement Partners, LLC4,362$43.0K0.00%00.0%Unchanged
Emfo, LLC5,000$49.0K0.04%+5,000New
Simplex Trading, LLC6,985$68.0K0.00%+6,985New
Metropolitan Life Insurance Co9,799$96.5K0.00%+9,799New
Argent Trust Co10,000$99.0K0.01%+10,000New
Squarepoint Ops LLC10,352$102.0K0.00%+10,352New
Invesco Ltd.10,438$103.0K0.00%−402,385−97.5%Reduced
ExodusPoint Capital Management, LP11,641$115.0K0.00%−65,007−84.8%Reduced
Raymond James & Associates11,786$116.0K0.00%+11,786New
Harvest Investment Services, LLC12,022$118.0K0.05%−683−5.4%Reduced
Voya Investment Management LLC12,793$126.0K0.00%+12,793New
MetLife Investment Management12,799$126.1K0.00%+12,799New
Engineers Gate Manager LP13,929$137.0K0.01%+1,113+8.7%Added
JPMorgan Chase & Co14,281$141.0K0.00%+14,269+118,908.3%Added
ProShare Advisors LLC15,320$151.0K0.00%+15,320New
Dana Investment Advisors, Inc.15,455$152.0K0.01%+15,455New
American International Group, Inc.18,209$179.0K0.00%+18,209New
Bank of America Corp18,397$181.0K0.00%−4,578−19.9%Reduced
Wolverine Trading, LLC11,573$184.0K0.00%−653−5.3%Reduced
Manufacturers Life Insurance Company, The18,767$185.0K0.00%+18,767New
Deutsche Bank AG19,294$190.0K0.00%+19,294New
Commonwealth Equity Services, LLC19,737$194.0K0.00%+7,802+65.4%Added
Keebeck Wealth Management, LLC20,000$197.0K0.03%00.0%Unchanged
MML Investors Services, LLC20,176$199.0K0.00%+176+0.9%Added
Goldman Sachs Group Inc21,845$215.0K0.00%−113,385−83.8%Reduced
Tower Research Capital LLC (TRC)22,935$226.0K0.01%+19,385+546.1%Added
AdvisorNet Financial, Inc23,439$231.0K0.02%+3,730+18.9%Added
Parametric Portfolio Associates LLC23,781$234.0K0.00%+5,719+31.7%Added
New York State Common Retirement Fund27,800$274.0K0.00%+27,800New
Price T Rowe Associates Inc31,985$315.0K0.00%−16,115−33.5%Reduced
AXA S.A.32,600$321.0K0.00%+19,800+154.7%Added
UBS Group AG34,185$337.0K0.00%−57,642−62.8%Reduced
CSS LLC35,073$345.0K0.02%+500+1.4%Added
State of Wisconsin Investment Board42,000$414.0K0.00%+42,000New
Rhumbline Advisers42,161$415.0K0.00%+42,161New
Apollon Wealth Management, LLC44,583$439.0K0.08%+44,583New
California State Teachers Retirement System44,837$442.0K0.00%+44,837New
Alliancebernstein L.P.45,300$446.0K0.00%+45,300New
Alps Advisors Inc50,573$498.0K0.00%−16,627−24.7%Reduced
National Asset Management, Inc.54,380$536.0K0.02%+20,830+62.1%Added
MYDA Advisors LLC60,000$591.0K0.16%+60,000New
Group One Trading, L.P.66,858$659.0K0.01%+17,828+36.4%Added
Barclays PLC67,972$670.0K0.00%+35,127+106.9%Added
Cubist Systematic Strategies, LLC69,300$683.0K0.01%−60,917−46.8%Reduced
PointState Capital LP100,000$985.0K0.02%+100,000New
Knoll Capital Management, LLC50,000$1.11M0.58%00.0%Unchanged
Principal Financial Group Inc115,491$1.14M0.00%−59,467−34.0%Reduced
Beirne Wealth Consulting Services, LLC133,770$1.32M0.72%+21,000+18.6%Added
Bank of New York Mellon Corp134,851$1.33M0.00%+79,494+143.6%Added
DCF Advisers, LLC145,750$1.44M0.72%+145,750New
Susquehanna International Group, LLP159,602$1.57M0.00%−169,382−51.5%Reduced
Integral Health Asset Management, LLC160,000$1.58M0.43%+160,000New
Wells Fargo & Company179,835$1.77M0.00%−24,798−12.1%Reduced
Rafferty Asset Management, LLC181,522$1.79M0.01%−17,276−8.7%Reduced
Jane Street Group, LLC184,804$1.82M0.00%+90,775+96.5%Added
Parkman Healthcare Partners LLC200,000$1.97M0.43%+200,000New
Charles Schwab Investment Management Inc212,550$2.09M0.00%+76,056+55.7%Added
Nuveen Asset Management, LLC238,567$2.35M0.00%+238,567New
Citigroup Inc275,959$2.72M0.00%+16,064+6.2%Added
Ardsley Advisory Partners LP301,500$2.98M0.50%+301,500New
Norges Bank329,800$3.25M0.00%+329,800New
Northern Trust Corp332,290$3.27M0.00%+241,637+266.6%Added
Geode Capital Management, LLC535,516$5.27M0.00%+286,386+115.0%Added
Sphera Funds Management Ltd.683,395$6.73M0.64%+683,395New
Capital World Investors692,604$6.82M0.00%−711,396−50.7%Reduced
Braun Stacey Associates Inc708,928$6.98M0.27%+708,928New
Morgan Stanley775,528$7.64M0.00%+697,988+900.2%Added
Tang Capital Management LLC783,407$7.72M1.54%+783,407New
D. E. Shaw & Co., Inc.827,756$8.15M0.01%−488,058−37.1%Reduced