Atossa Therapeutics Ownership | Who Owns Atossa Therapeutics?


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Atossa Therapeutics Ownership Summary


Atossa Therapeutics is owned by 23.80% institutional investors, 0.07% insiders, and 76.13% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 7.76% of ATOS shares. Vanguard Total Stock Mkt Idx Inv is the top mutual fund, with 3.05% of its assets in Atossa Therapeutics shares.

ATOS Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockAtossa Therapeutics23.80%0.07%76.13%
SectorHealthcare Stocks 57.39%9.93%32.68%
IndustryBiotech Stocks 68.48%9.65%21.87%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de9.76M7.76%$9.21M
Blackrock9.20M7.34%$10.94M
Vanguard group6.62M5.26%$6.25M
Geode capital management2.81M2.24%$2.66M
State street1.76M1.40%$1.66M
Renaissance1.56M1.24%$1.47M
Ubs group1.12M0.89%$1.06M
Morgan stanley456.15K0.36%$542.82K
Jpmorgan chase361.30K0.29%$341.10K
Goldman sachs group344.86K0.27%$325.58K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Virtu financial208.20K0.01%$197.00K
Xtx topco79.18K0.01%$74.75K
Two sigma securities22.32K0.00%$21.08K
Renaissance1.56M0.00%$1.47M
Lvm capital management ltd/mi21.00K0.00%$20.00K
J. l. bainbridge11.12K0.00%$10.50K
Koss-olinger consulting12.00K0.00%$11.00K
Pfg investments14.90K0.00%$14.07K
Connor, clark & lunn investment management189.32K0.00%$178.74K
Planning capital management1.00K0.00%$1.19K

Top Buyers

HolderShares% AssetsChange
Blackrock9.20M0.00%6.45M
Ubs group1.12M0.00%1.05M
Renaissance1.56M0.00%247.56K
Jpmorgan chase361.30K-211.65K
Virtu financial208.20K0.01%157.55K

Top Sellers

HolderShares% AssetsChange
Laurion capital management lp---2.23M
Morgan stanley456.15K--309.26K
Point72 asia (singapore) pte.---140.86K
Y-intercept (hong kong)---114.34K
Mariner---105.91K

New Positions

HolderShares% AssetsChangeValue
Hrt financial lp31.50K0.00%31.50K$29.00K
Raymond james financial18.82K-18.82K$17.76K
Cibc world markets11.84K0.00%11.84K$11.18K
Sg americas securities11.81K0.00%11.81K$14.00K
Janney montgomery scott11.50K-11.50K$14.00K

Sold Out

HolderChange
Capital performance advisors llp-25.00
Delos wealth advisors-100.00
Nbc securities-150.00
Old point trust & financial services n a-250.00
Cwm-394.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202487-4.40%29,932,7169.47%235.04%4011.11%21-19.23%
Sep 30, 20249112.35%27,343,7514.42%214.98%37-22.92%2578.57%
Jun 30, 20248114.08%26,186,18535.76%208.82%4829.73%1344.44%
Mar 31, 20247142.00%19,288,84520.98%159.58%37236.36%9-43.75%
Dec 31, 202350-9.09%15,943,994-1.25%127.80%11-38.89%1614.29%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
Vanguard Total Stock Mkt Idx Inv3.94M3.05%-
Vanguard US Total Market Shares ETF3.94M3.05%-
iShares Russell 2000 ETF3.33M2.58%-28.88K
Vanguard Institutional Extnd Mkt Idx Tr1.67M1.29%-
Fidelity Small Cap Index1.28M0.99%-23.95K
iShares Russell 2000 Value ETF1.03M0.79%-
Fidelity Extended Market Index652.50K0.51%-4.16K
Vanguard Russell 2000 ETF578.03K0.45%13.46K
State St Russell Sm Cap® Indx SL Cl I549.72K0.43%-
Schwab Small Cap Index301.65K0.23%-

Recent Insider Transactions


DateNameRoleActivityValue
Mar 26, 2025Remmel H. Lawrence-Buy$7.00K
Apr 10, 2024Finn Jonathan-Buy$44.25K
Nov 15, 2023WEAVER GREGORY L Former EVP, CFO, & DirectorSell$32.50K
Jun 20, 2023WEAVER GREGORY L EVP & CFOBuy$48.50K
Jul 02, 2021WEAVER GREGORY L-Sell$599.83K

Insider Transactions Trends


DateBuySell
2025 Q11-
2024 Q21-
2024 Q1--
2023 Q4-1
2023 Q21-

ATOS Ownership FAQ


Who Owns Atossa Therapeutics?

Atossa Therapeutics shareholders are primarily institutional investors at 23.80%, followed by 0.07% insiders and 76.13% retail investors. The average institutional ownership in Atossa Therapeutics's industry, Biotech Stocks , is 68.48%, which Atossa Therapeutics falls below.

Who owns the most shares of Atossa Therapeutics?

Atossa Therapeutics’s largest shareholders are Blackrock funding, inc. /de (9.76M shares, 7.76%), Blackrock (9.2M shares, 7.34%), and Vanguard group (6.62M shares, 5.26%). Together, they hold 20.36% of Atossa Therapeutics’s total shares outstanding.

Does Blackrock own Atossa Therapeutics?

Yes, BlackRock owns 7.34% of Atossa Therapeutics, totaling 9.2M shares as of Jun 2024. This represents 0.00% of BlackRock's total assets, with a market value of 10.94M$. In the last quarter, BlackRock increased its holdings by 6.45M shares, a 234.28% change.

Who is Atossa Therapeutics’s biggest shareholder by percentage of total assets invested?

Virtu financial is Atossa Therapeutics’s biggest shareholder by percentage of total assets invested, with 0.01% of its assets in 208.2K Atossa Therapeutics shares, valued at 197K$.

Who is the top mutual fund holder of Atossa Therapeutics shares?

Vanguard Total Stock Mkt Idx Inv is the top mutual fund holder of Atossa Therapeutics shares, with 3.05% of its total shares outstanding invested in 3.94M Atossa Therapeutics shares.

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