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Disclosery

ALT ALTIMMUNE INC

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COM NEW (common), issuer CIK 1326190

180 managers (184 13F filers) reported a position in ALT shares at 2025-12-31, 55,062,160 shares in all. 44 filers opened a position and 20 filers sold out during the quarter.

Managers
180
13F filers
184
New
44
Added
74
Reduced
29
Sold out
20
Shares held by filers
55,062,160

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.9,704,298$35M<0.01%+3,331,03913F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC9,491,159$34.3M<0.01%+3,117,52113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP5,119,703$18.5M<0.01%+1,518,44813F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,292,410$8.28M<0.01%+275,02513F-HRTimelineGroup
TANG CAPITAL MANAGEMENT LLCin group TANG CAPITAL MANAGEMENT LLC2,131,307$7.69M0.38%013F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding2,059,583$7.44M-1,365,665Timeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC1,783,950$6.44M0.01%+1,503,75113F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding1,504,187$5.43M-55,222Timeline
MORGAN STANLEYin group MORGAN STANLEY1,359,885$4.91M<0.01%-131,16413F-HR/ATimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC1,349,293$4.87M<0.01%+787,03613F-HR/ATimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.1,343,583$4.85M<0.01%+983,18813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC1,337,927$4.83M<0.01%+55,91313F-HRTimelineGroup
Nuveen, LLCin group TIAA1,244,211$4.49M<0.01%+1,041,85613F-HRTimelineGroup
Knoll Capital Management, LLC1,121,524$4.05M1.86%013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP922,777$3.33M<0.01%new13F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP715,991$2.58M<0.01%+58,97513F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding642,720$2.32M-117Timeline
FMR LLCin group FMR LLC564,093$2.04M<0.01%+118,95613F-HRTimelineGroup
SCHRODER INVESTMENT MANAGEMENT GROUP469,013$1.69M<0.01%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC400,595$1.45M<0.01%+60,31213F-HRTimelineGroup
Soviero Asset Management, LP400,000$1.44M0.75%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/383,783$1.39M<0.01%+63,34313F-HRTimelineGroup
Beirne Wealth Consulting Services, LLC376,458$1.36M0.39%-34,00013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp354,201$1.28M<0.01%+12,21613F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP283,703$1.02M<0.01%-14,08613F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co283,669$1.02M<0.01%+79,22013F-HRTimelineGroup
Sculptor Capital LPin group Sculptor Capital LP276,700$999K0.01%013F-HRTimelineGroup
BROWN WEALTH MANAGEMENT, LLC258,673$934K0.25%+25,00013F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…257,271$929K<0.01%-7,53113F-HRTimelineGroup
Steward Partners Investment Advisory, L…245,393$886K<0.01%+26,08413F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC242,017$874K0.01%+126,21713F-HRTimelineGroup
Pavaki Capital Management LLC215,400$778K0.54%13F-HR/ATimeline
Invesco Ltd.in group Invesco Ltd.214,824$776K<0.01%+52,88113F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.214,632$775K0.03%+29,05713F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC207,383$749K<0.01%-160,19913F-HRTimelineGroup
Rafferty Asset Management, LLC195,766$707K<0.01%+39,57213F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC181,483$655K<0.01%+7,38613F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS177,305$640K<0.01%+102,77213F-HRTimelineGroup
IMC-Chicago, LLC173,130$625K0.01%+57,77013F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC172,559$623K<0.01%new13F-HRTimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.157,800$570K<0.01%+107,80013F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC128,529$523K<0.01%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN141,282$510K<0.01%+48,37513F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC132,221$474K<0.01%+59,09513F-HR/ATimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC124,821$451K<0.01%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP123,416$446K<0.01%+63,00513F-HRTimelineGroup
RHUMBLINE ADVISERS121,513$439K<0.01%-9,23013F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.119,440$431K<0.01%013F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…114,128$412K0.01%-108,81413F-HRTimelineGroup
WEALTH EFFECTS LLC111,750$403K0.13%+51,90013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO104,532$377K<0.01%+5,34113F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC103,500$374K<0.01%013F-HRTimeline
Summit Financial Wealth Advisors, LLC103,288$373K0.05%+7,00013F-HRTimeline
Janney Montgomery Scott LLC102,610$370K<0.01%+44,05013F-HRTimeline
NOMURA ASSET MANAGEMENT INTERNATIONAL I…in group NOMURA ASSET MANAGEMENT CO LTD100,000$361K<0.01%13F-HRTimelineGroup
Engineers Gate Manager LP87,264$315K<0.01%+46,22113F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC85,677$309K<0.01%new13F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\79,940$289K<0.01%+3,04713F-HRTimelineGroup
Caption Management, LLC74,438$269K0.01%-55,56213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC73,838$267K<0.01%-47413F-HRTimelineGroup
PROFUND ADVISORS LLC72,298$261K0.01%+38,58613F-HRTimeline
ALLIANCEBERNSTEIN L.P.71,760$259K<0.01%013F-HRTimeline
Verition Fund Management LLC69,476$251K<0.01%+38,32213F-HRTimeline
Walleye Capital LLCgroup of 2 filers holding65,665$237K+35,388Timeline
LMR Partners LLPin group LMR Partners LLP61,300$221K<0.01%new13F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management60,109$217K<0.01%new13F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC58,477$211K0.01%+10,40913F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding57,636$208K+8,319Timeline
BLAIR WILLIAM & CO/IL56,434$204K<0.01%new13F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC55,859$202K<0.01%+28,18713F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC52,557$190K<0.01%+13,91813F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC50,600$183K<0.01%013F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…50,482$182K0.05%+34,56813F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/49,879$181K<0.01%+8,38613F-HRTimeline
LPL Financial LLC48,626$176K<0.01%-12,89813F-HRTimeline
Voleon Capital Management LP47,055$170K<0.01%new13F-HRTimeline
Creative Planningin group Creative Planning46,886$169K<0.01%+10,50813F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…43,167$156K<0.01%+43,11313F-HR/ATimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…38,193$138K<0.01%-6,34113F-HRTimelineGroup
KINGSWOOD WEALTH ADVISORS, LLC36,000$130K0.01%+20,60013F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC35,732$128K<0.01%new13F-HRTimelineGroup
Kovack Advisors, Inc.35,215$127K0.01%new13F-HR/ATimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC34,949$126K<0.01%-549,74713F-HRTimelineGroup
MML INVESTORS SERVICES, LLC34,550$125K<0.01%013F-HRTimeline
GROUP ONE TRADING LLC31,372$113K<0.01%-108,88313F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.30,603$110K0.02%new13F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD30,000$108K<0.01%new13F-HRTimeline
Cetera Investment Advisers29,687$107K<0.01%+9,48113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC28,324$102K<0.01%+18,55013F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.27,600$99.6K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …27,596$99.6K<0.01%+1,60913F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA27,414$99K<0.01%-39,31913F-HRTimelineGroup
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…26,508$95.7K<0.01%+2,50013F-HRTimelineGroup
AXQ CAPITAL, LP25,701$92.8K0.02%+5,26613F-HRTimeline
Police & Firemen's Retirement System of…23,573$85.1K<0.01%013F-HRTimeline
DRW Securities, LLC22,469$81.1K0.01%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND21,447$77.4K<0.01%013F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC21,147$76.3K<0.01%new13F-HRTimelineGroup
ProShare Advisors LLC20,816$75.1K<0.01%+3,73513F-HRTimeline
AlphaQuest LLC19,820$71.5K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.18,941$68.4K<0.01%+1,19313F-HRTimelineGroup
Man Group plcin group Man Group plc18,936$68.4K<0.01%new13F-HRTimelineGroup
DCF Advisers, LLC18,700$67.5K0.02%new13F-HRTimeline
Keudell/Morrison Wealth Management18,500$66.8K0.01%13F-HRTimeline
Vines Capital Management, LLC17,884$64.6K0.06%13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…17,683$63.8K<0.01%+1,65013F-HRTimelineGroup
Composition Wealth, LLC17,020$61.4K<0.01%013F-HRTimeline
China Universal Asset Management Co., L…17,003$61.4K<0.01%+1,53313F-HRTimeline
EFG International AGin group EFG International AG16,500$59.6K<0.01%13F-HRTimelineGroup
Advisory Services Network, LLC15,160$54.7K<0.01%+6,20013F-HRTimeline
PKS Advisory Services, LLC15,100$54.5K0.01%new13F-HRTimeline
&PARTNERS15,035$54.3K<0.01%new13F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.15,000$54.1K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…14,537$52.5K<0.01%+60813F-HRTimelineGroup
MARTINGALE ASSET MANAGEMENT L P14,355$51.8K<0.01%new13F-HRTimeline
HUB Investment Partners, LLC14,218$51.3K<0.01%new13F-HRTimeline
SHERBROOKE PARK ADVISERS LLC14,152$51.1K0.13%-1,75213F-HRTimeline
B. Riley Wealth Advisors, Inc.13,955$50.4K<0.01%-6,52513F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC13,690$49.4K<0.01%013F-HRTimelineGroup
Northeast Financial Group, Inc.in group Northeast Financial Group, In…13,393$48.3K0.01%new13F-HRTimelineGroup
Schonfeld Strategic Advisors LLC13,021$47K<0.01%new13F-HRTimeline
Gotham Asset Management, LLC12,669$45.7K<0.01%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP12,526$45.2K<0.01%+5,90013F-HRTimelineGroup
Sequoia Financial Advisors, LLC12,428$44.9K<0.01%+35413F-HRTimeline
TWO SIGMA SECURITIES, LLC12,274$44.3K0.01%+1,02413F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC11,930$43.1K<0.01%+1,86913F-HRTimeline
ExodusPoint Capital Management, LP11,921$43K<0.01%-166,25613F-HRTimeline
Sunbelt Securities, Inc.10,844$39.1K<0.01%013F-HRTimeline
SG Americas Securities, LLC10,575$38K<0.01%-7,46513F-HRTimeline
CreativeOne Wealth, LLCin group CreativeOne Wealth, LLC10,500$37.9K<0.01%new13F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd10,101$36.5K<0.01%new13F-HRTimelineGroup
Geneos Wealth Management Inc.10,000$36.1K<0.01%013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc9,362$33.8K<0.01%+74213F-HRTimelineGroup
SBI Securities Co., Ltd.8,837$31.9K<0.01%+1,92813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…8,189$29.6K<0.01%-1,23213F-HRTimelineGroup
Arax Advisory Partners8,165$29.5K<0.01%+4,07613F-HRTimeline
North Star Investment Management Corp.8,000$28.9K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding6,955$25.1K-200Timeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…5,461$19.7K<0.01%+61713F-HRTimeline
Larson Financial Group LLC5,306$19.2K<0.01%+113F-HRTimeline
Activest Wealth Management5,001$18.1K<0.01%+3,00013F-HRTimeline
TD Waterhouse Canada Inc.3,500$12.6K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC3,082$11K<0.01%+81813F-HRTimelineGroup
AMALGAMATED BANK2,786$10K<0.01%+33513F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…2,412$8.71K<0.01%-46913F-HRTimelineGroup
GF FUND MANAGEMENT CO. LTD.2,049$7.4K<0.01%+15013F-HRTimeline
HighMark Wealth Management LLC2,000$7.22K<0.01%new13F-HRTimeline
Caitong International Asset Management …1,924$6.95K<0.01%new13F-HR/ATimeline
NewEdge Advisors, LLC1,888$6.82K<0.01%-1,30013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…1,125$4.06K<0.01%013F-HRTimeline
TRUST CO OF VERMONT1,000$3.61K<0.01%new13F-HRTimeline
COUNTRY TRUST BANK1,000$3.61K<0.01%013F-HRTimeline
Leonteq Securities AG1,000$3.61K<0.01%new13F-HRTimeline
MassMutual Private Wealth & Trust, FSB918$3.31K<0.01%+50013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\559$2.02K<0.01%+50813F-HRTimelineGroup
Sterling Capital Management LLC530$1.91K<0.01%+33313F-HRTimeline
Stone House Investment Management, LLC500$1.8K<0.01%013F-HRTimeline
SIGNATUREFD, LLC490$1.77K<0.01%new13F-HRTimeline
ELEVATION WEALTH PARTNERS, LLC286$1.03K<0.01%013F-HRTimeline
Daiwa Securities Group Inc.in group Daiwa Securities Group Inc.235$1K<0.01%013F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…250$903<0.01%013F-HRTimelineGroup
Legacy Wealth Managment, LLC/IDin group Legacy Wealth Managment, LLC/…250$903<0.01%new13F-HRTimelineGroup
TD PRIVATE CLIENT WEALTH LLC193$697<0.01%new13F-HRTimeline
MAI Capital Management150$542<0.01%013F-HRTimeline
LRI Investments, LLC123$444<0.01%new13F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…100$361<0.01%-113F-HR/ATimelineGroup
NISA INVESTMENT ADVISORS, LLC95$343<0.01%013F-HRTimeline
Allworth Financial LP89$322<0.01%new13F-HRTimeline
Farther Finance Advisors, LLC73$264<0.01%013F-HRTimeline
Parallel Advisors, LLC40$144<0.01%013F-HRTimeline
Clearstead Advisors, LLC40$143<0.01%new13F-HRTimeline
COMERICA BANK28$101<0.01%new13F-HRTimeline
Bernard Wealth Management Corp.15$55<0.01%013F-HRTimeline
FIRST HORIZON CORP3$11<0.01%013F-HRTimeline
HUNTINGTON NATIONAL BANKin group HUNTINGTON NATIONAL BANK2$7<0.01%013F-HRTimelineGroup
Cornerstone Planning Group LLC1$5<0.01%-2,56113F-HRTimeline
ROTHSCHILD INVESTMENT LLC1$4<0.01%new13F-HRTimeline
Commonwealth Retirement Investments LLC1$4<0.01%new13F-HRTimeline
Motiv8 Investments LLC67$00%new13F-HRTimelineValue filed as zero, left out of ratios.
BESSEMER GROUP INCin group BESSEMER GROUP INC0$00%-66013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.