13F

Stock

Atossa Therapeut

Ticker not mapped · held by 31 managers

Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025

Reported value

$6.52M

Holders

31

+28 new · −1 exited

Holders’ est. mark

—

Need a prior quarter

Largest holder

$1.84M

VANGUARD CAPITAL MANAGEMENT LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Q2 2025Q4 2025Q1 2026

Who holds it

Notable only
InvestorSharesValueEst. markChange
VANGUARD CAPITAL MANAGEMENT LLC349.1K$1.84M—Held
AMERIPRISE FINANCIAL INC255.1K$1.34M—New
BlackRock, Inc.133.2K$700.5K—New
Renaissance Technologies109K$573.4K—New
GEODE CAPITAL MANAGEMENT, LLC97.1K$510.7K—New
UBS Group AG92K$484.1K—New
MILLENNIUM MANAGEMENT LLC66.7K$351K—New
VANGUARD FIDUCIARY TRUST CO52.2K$274.8K—Held
State Street39.8K$209.1K—New
NORTHERN TRUST CORP19.2K$101.1K—New
MORGAN STANLEY16.2K$85.2K—New
Vanguard Global Advisers, LLC3.09K$16.2K—Held
JONES FINANCIAL COMPANIES LLLP2.06K$9.73K—New
Tower Research Capital LLC (TRC)863$4.54K—New
GROUP ONE TRADING LLC609$3.2K—New
OSAIC HOLDINGS, INC.587$3.09K—New
ROYAL BANK OF CANADA644$3K—New
Rockefeller Capital Management L.P.353$1.86K—New
JPMORGAN CHASE & CO383$1.8K—New
WELLS FARGO & COMPANY/MN296$1.56K—New
SBI Securities Co., Ltd.113$594—New
HARBOUR INVESTMENTS, INC.110$579—New
TD Waterhouse Canada Inc.103$525—New
BNP PARIBAS FINANCIAL MARKETS98$515—New
North Star Investment Management Corp.80$421—New
Allworth Financial LP46$242—New
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO46$242—New
Napier Financial, LLC6$32—New
Bogart Wealth, LLC5$26—New
Clearstead Advisors, LLC4$22—New
Avion Wealth318$1—New

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.