Atossa Therapeutics Inc (ATOSEUR)

Q4 2025 vs Q1 2026

Comparing institutional holders between quarters

Compare Detailed Historical Funds Options Short Interest 13D/13G Peers Targeting Trading Summary Profile

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Renaissance Technologies LLC

CLOSED

Shares0 from 2,062,838

Change-2,062,838 (-100%)

Value$0 (-$1.2M)

Filed 2026-05-14

BlackRock, Inc.

CLOSED

Shares0 from 1,997,627

Change-1,997,627 (-100%)

Value$0 (-$1.2M)

Filed 2026-05-13

Geode Capital Management, LLC

CLOSED

Shares0 from 1,371,909

Change-1,371,909 (-100%)

Value$0 (-$809.6K)

Filed 2026-05-15

Millennium Management LLC

CLOSED

Shares0 from 1,242,868

Change-1,242,868 (-100%)

Value$0 (-$733.3K)

Filed 2026-05-15

Jacobs Levy Equity Management, Inc

CLOSED

Shares0 from 1,048,289

Change-1,048,289 (-100%)

Value$0 (-$618.5K)

Filed 2026-05-15

Citadel Advisors LLC

CLOSED

Shares0 from 648,115

Change-648,115 (-100%)

Value$0 (-$382.4K)

Filed 2026-05-15

State Street Corp

CLOSED

Shares0 from 596,485

Change-596,485 (-100%)

Value$0 (-$351.9K)

Filed 2026-05-15

Susquehanna International Group, LLP

CLOSED

Shares0 from 582,587

Change-582,587 (-100%)

Value$0 (-$343.7K)

Filed 2026-05-15

UBS Group AG

CLOSED

Shares0 from 390,008

Change-390,008 (-100%)

Value$0 (-$230.1K)

Filed 2026-05-05

Northern Trust Corp

CLOSED

Shares0 from 288,399

Change-288,399 (-100%)

Value$0 (-$170.2K)

Filed 2026-05-14

Connor, Clark & Lunn Investment Management Ltd.

CLOSED

Shares0 from 266,010

Change-266,010 (-100%)

Value$0 (-$156.9K)

Filed 2026-05-11

Jane Street Group, LLC

CLOSED

Shares0 from 245,998

Change-245,998 (-100%)

Value$0 (-$145.1K)

Filed 2026-05-12

Graham Capital Management, L.P.

CLOSED

Shares0 from 211,369

Change-211,369 (-100%)

Value$0 (-$124.7K)

Filed 2026-05-15

XTX Topco Ltd

CLOSED

Shares0 from 169,261

Change-169,261 (-100%)

Value$0 (-$99.9K)

Filed 2026-05-15

Charles Schwab Investment Management Inc

CLOSED

Shares0 from 80,000

Change-80,000 (-100%)

Value$0 (-$47.2K)

Filed 2026-05-15

Acadian Asset Management LLC

CLOSED

Shares0 from 79,414

Change-79,414 (-100%)

Value$0 (-$46)

Filed 2026-05-13

Qube Research & Technologies Ltd

CLOSED

Shares0 from 72,802

Change-72,802 (-100%)

Value$0 (-$43.0K)

Filed 2026-05-15

Bank of America Corp

CLOSED

Shares0 from 67,654

Change-67,654 (-100%)

Value$0 (-$39.9K)

Filed 2026-05-18

Morgan Stanley

CLOSED

Shares0 from 61,500

Change-61,500 (-100%)

Value$0 (-$36.3K)

Filed 2026-05-15

Point72 Asset Management, L.P.

CLOSED

Shares0 from 48,092

Change-48,092 (-100%)

Value$0 (-$28.4K)

Filed 2026-05-15

&partners

CLOSED

Shares0 from 43,000

Change-43,000 (-100%)

Value$0 (-$25.4K)

Filed 2026-05-15

JPMorgan Chase & Co

CLOSED

Shares0 from 38,067

Change-38,067 (-100%)

Value$0 (-$22.5K)

Filed 2026-05-13

Regions Financial Corp

CLOSED

Shares0 from 30,000

Change-30,000 (-100%)

Value$0 (-$17.7K)

Filed 2026-05-05

LPL Financial LLC

CLOSED

Shares0 from 29,469

Change-29,469 (-100%)

Value$0 (-$17.4K)

Filed 2026-05-06

R Squared Ltd

CLOSED

Shares0 from 28,099

Change-28,099 (-100%)

Value$0 (-$16.6K)

Filed 2026-04-29

Two Sigma Securities, LLC

CLOSED

Shares0 from 24,508

Change-24,508 (-100%)

Value$0 (-$14.5K)

Filed 2026-05-15

Sigma Planning Corp

CLOSED

Shares0 from 24,000

Change-24,000 (-100%)

Value$0 (-$14.2K)

Filed 2026-05-04

Two Sigma Investments, LP

CLOSED

Shares0 from 23,452

Change-23,452 (-100%)

Value$0 (-$13.8K)

Filed 2026-05-15

PFG Investments, LLC

CLOSED

Shares0 from 21,750

Change-21,750 (-100%)

Value$0 (-$12.8K)

Filed 2026-04-27

Baader Bank Aktiengesellschaft

CLOSED

Shares0 from 21,364

Change-21,364 (-100%)

Value$0 (-$7.8K)

Filed 2026-05-08

LVM Capital Management LTD

CLOSED

Shares0 from 21,000

Change-21,000 (-100%)

Value$0 (-$12)

Filed 2026-04-02

StoneX Group Inc.

CLOSED

Shares0 from 19,871

Change-19,871 (-100%)

Value$0 (-$11.7K)

Filed 2026-05-14

Two Sigma Advisers, LP

CLOSED

Shares0 from 18,300

Change-18,300 (-100%)

Value$0 (-$10.8K)

Filed 2026-05-15

DnB Asset Management AS

CLOSED

Shares0 from 15,600

Change-15,600 (-100%)

Value$0 (-$9.2K)

Filed 2026-05-14

Raymond James Financial Inc

CLOSED

Shares0 from 11,323

Change-11,323 (-100%)

Value$0 (-$6.7K)

Filed 2026-05-14

Bank of New York Mellon Corp

CLOSED

Shares0 from 11,147

Change-11,147 (-100%)

Value$0 (-$6.6K)

Filed 2026-05-05

J. L. Bainbridge & Co., Inc.

CLOSED

Shares0 from 11,121

Change-11,121 (-100%)

Value$0 (-$6.6K)

Filed 2026-04-22

Focus Financial Network, Inc.

CLOSED

Shares0 from 10,350

Change-10,350 (-100%)

Value$0 (-$6.1K)

Filed 2026-04-14

Janney Montgomery Scott LLC

CLOSED

Shares0 from 10,000

Change-10,000 (-100%)

Value$0 (-$6)

Filed 2026-04-22

Osaic Holdings, Inc.

CLOSED

Shares0 from 8,847

Change-8,847 (-100%)

Value$0 (-$5.2K)

Filed 2026-05-15

FMR LLC

CLOSED

Shares0 from 7,365

Change-7,365 (-100%)

Value$0 (-$4.3K)

Filed 2026-05-15

Group One Trading LLC

CLOSED

Shares0 from 6,662

Change-6,662 (-100%)

Value$0 (-$3.9K)

Filed 2026-05-13

NewEdge Advisors, LLC

CLOSED

Shares0 from 5,000

Change-5,000 (-100%)

Value$0 (-$3.0K)

Filed 2026-06-03

Rockefeller Capital Management L.P.

CLOSED

Shares0 from 5,000

Change-5,000 (-100%)

Value$0 (-$3.0K)

Filed 2026-05-14

Tower Research Capital LLC (TRC)

CLOSED

Shares0 from 3,999

Change-3,999 (-100%)

Value$0 (-$2.4K)

Filed 2026-05-15

Huntington National Bank

CLOSED

Shares0 from 3,000

Change-3,000 (-100%)

Value$0 (-$1.8K)

Filed 2026-05-15

Robinswood Financial LLC

CLOSED

Shares0 from 2,557

Change-2,557 (-100%)

Value$0 (-$1.5K)

Filed 2026-07-13

Harbour Investments, Inc.

CLOSED

Shares0 from 1,656

Change-1,656 (-100%)

Value$0 (-$977)

Filed 2026-05-15

SBI Securities Co., Ltd.

CLOSED

Shares0 from 1,565

Change-1,565 (-100%)

Value$0 (-$923)

Filed 2026-04-28

TD Waterhouse Canada Inc.

CLOSED

Shares0 from 1,555

Change-1,555 (-100%)

Value$0 (-$910)

Filed 2026-05-12

BNP Paribas Financial Markets

CLOSED

Shares0 from 1,497

Change-1,497 (-100%)

Value$0 (-$883)

Filed 2026-05-12

Royal Bank of Canada

CLOSED

Shares0 from 943

Change-943 (-100%)

Value$0 (-$1.0K)

Filed 2026-05-15

Optiver Holding B.V.

CLOSED

Shares0 from 838

Change-838 (-100%)

Value$0 (-$494)

Filed 2026-06-02

Allworth Financial LP

CLOSED

Shares0 from 702

Change-702 (-100%)

Value$0 (-$415)

Filed 2026-05-15

Jones Financial Companies Lllp

CLOSED

Shares0 from 700

Change-700 (-100%)

Value$0 (-$413)

Filed 2026-05-15

Northwestern Mutual Wealth Management Co

CLOSED

Shares0 from 500

Change-500 (-100%)

Value$0 (-$295)

Filed 2026-05-07

Nisa Investment Advisors, LLC

CLOSED

Shares0 from 350

Change-350 (-100%)

Value$0 (-$207)

Filed 2026-04-30

Lanark Financial, Inc.

CLOSED

Shares0 from 150

Change-150 (-100%)

Value$0 (-$88)

Filed 2026-04-14

Wells Fargo & Company

CLOSED

Shares0 from 83

Change-83 (-100%)

Value$0 (-$49)

Filed 2026-07-08

Hantz Financial Services, Inc.

CLOSED

Shares0 from 82

Change-82 (-100%)

Value$0 ($0)

Filed 2026-05-01

Clearstead Advisors, LLC

CLOSED

Shares0 from 70

Change-70 (-100%)

Value$0 (-$42)

Filed 2026-05-06

CWM, LLC

CLOSED

Shares0 from 50

Change-50 (-100%)

Value$0 ($0)

Filed 2026-05-14

Arax Advisory Partners

CLOSED

Shares0 from 42

Change-42 (-100%)

Value$0 (-$25)

Filed 2026-05-13

Vanguard Group Inc

DECREASED

Shares0 from 6,147,838

Change-6,147,838 (-100%)

Value$0 (-$3.6M)

Filed 2026-05-14

Greenberg Financial Group

N/A

Shares— from 18,216

Change-18,216 (-100%)

Value—

	Status
Renaissance Technologies LLC	CLOSED	0	2,062,838	-2,062,838	-100%	$1.2M	$0	-$1.2M	2026-05-14
BlackRock, Inc.	CLOSED	0	1,997,627	-1,997,627	-100%	$1.2M	$0	-$1.2M	2026-05-13
Geode Capital Management, LLC	CLOSED	0	1,371,909	-1,371,909	-100%	$809.6K	$0	-$809.6K	2026-05-15
Millennium Management LLC	CLOSED	0	1,242,868	-1,242,868	-100%	$733.3K	$0	-$733.3K	2026-05-15
Jacobs Levy Equity Management, Inc	CLOSED	0	1,048,289	-1,048,289	-100%	$618.5K	$0	-$618.5K	2026-05-15
Citadel Advisors LLC	CLOSED	0	648,115	-648,115	-100%	$382.4K	$0	-$382.4K	2026-05-15
State Street Corp	CLOSED	0	596,485	-596,485	-100%	$351.9K	$0	-$351.9K	2026-05-15
Susquehanna International Group, LLP	CLOSED	0	582,587	-582,587	-100%	$343.7K	$0	-$343.7K	2026-05-15
UBS Group AG	CLOSED	0	390,008	-390,008	-100%	$230.1K	$0	-$230.1K	2026-05-05
Northern Trust Corp	CLOSED	0	288,399	-288,399	-100%	$170.2K	$0	-$170.2K	2026-05-14
Connor, Clark & Lunn Investment Management Ltd.	CLOSED	0	266,010	-266,010	-100%	$156.9K	$0	-$156.9K	2026-05-11
Jane Street Group, LLC	CLOSED	0	245,998	-245,998	-100%	$145.1K	$0	-$145.1K	2026-05-12
Graham Capital Management, L.P.	CLOSED	0	211,369	-211,369	-100%	$124.7K	$0	-$124.7K	2026-05-15
XTX Topco Ltd	CLOSED	0	169,261	-169,261	-100%	$99.9K	$0	-$99.9K	2026-05-15
Charles Schwab Investment Management Inc	CLOSED	0	80,000	-80,000	-100%	$47.2K	$0	-$47.2K	2026-05-15
Acadian Asset Management LLC	CLOSED	0	79,414	-79,414	-100%	$46	$0	-$46	2026-05-13
Qube Research & Technologies Ltd	CLOSED	0	72,802	-72,802	-100%	$43.0K	$0	-$43.0K	2026-05-15
Bank of America Corp	CLOSED	0	67,654	-67,654	-100%	$39.9K	$0	-$39.9K	2026-05-18
Morgan Stanley	CLOSED	0	61,500	-61,500	-100%	$36.3K	$0	-$36.3K	2026-05-15
Point72 Asset Management, L.P.	CLOSED	0	48,092	-48,092	-100%	$28.4K	$0	-$28.4K	2026-05-15
&partners	CLOSED	0	43,000	-43,000	-100%	$25.4K	$0	-$25.4K	2026-05-15
JPMorgan Chase & Co	CLOSED	0	38,067	-38,067	-100%	$22.5K	$0	-$22.5K	2026-05-13
Regions Financial Corp	CLOSED	0	30,000	-30,000	-100%	$17.7K	$0	-$17.7K	2026-05-05
LPL Financial LLC	CLOSED	0	29,469	-29,469	-100%	$17.4K	$0	-$17.4K	2026-05-06
R Squared Ltd	CLOSED	0	28,099	-28,099	-100%	$16.6K	$0	-$16.6K	2026-04-29
Two Sigma Securities, LLC	CLOSED	0	24,508	-24,508	-100%	$14.5K	$0	-$14.5K	2026-05-15
Sigma Planning Corp	CLOSED	0	24,000	-24,000	-100%	$14.2K	$0	-$14.2K	2026-05-04
Two Sigma Investments, LP	CLOSED	0	23,452	-23,452	-100%	$13.8K	$0	-$13.8K	2026-05-15
PFG Investments, LLC	CLOSED	0	21,750	-21,750	-100%	$12.8K	$0	-$12.8K	2026-04-27
Baader Bank Aktiengesellschaft	CLOSED	0	21,364	-21,364	-100%	$7.8K	$0	-$7.8K	2026-05-08
LVM Capital Management LTD	CLOSED	0	21,000	-21,000	-100%	$12	$0	-$12	2026-04-02
StoneX Group Inc.	CLOSED	0	19,871	-19,871	-100%	$11.7K	$0	-$11.7K	2026-05-14
Two Sigma Advisers, LP	CLOSED	0	18,300	-18,300	-100%	$10.8K	$0	-$10.8K	2026-05-15
DnB Asset Management AS	CLOSED	0	15,600	-15,600	-100%	$9.2K	$0	-$9.2K	2026-05-14
Raymond James Financial Inc	CLOSED	0	11,323	-11,323	-100%	$6.7K	$0	-$6.7K	2026-05-14
Bank of New York Mellon Corp	CLOSED	0	11,147	-11,147	-100%	$6.6K	$0	-$6.6K	2026-05-05
J. L. Bainbridge & Co., Inc.	CLOSED	0	11,121	-11,121	-100%	$6.6K	$0	-$6.6K	2026-04-22
Focus Financial Network, Inc.	CLOSED	0	10,350	-10,350	-100%	$6.1K	$0	-$6.1K	2026-04-14
Janney Montgomery Scott LLC	CLOSED	0	10,000	-10,000	-100%	$6	$0	-$6	2026-04-22
Osaic Holdings, Inc.	CLOSED	0	8,847	-8,847	-100%	$5.2K	$0	-$5.2K	2026-05-15
FMR LLC	CLOSED	0	7,365	-7,365	-100%	$4.3K	$0	-$4.3K	2026-05-15
Group One Trading LLC	CLOSED	0	6,662	-6,662	-100%	$3.9K	$0	-$3.9K	2026-05-13
NewEdge Advisors, LLC	CLOSED	0	5,000	-5,000	-100%	$3.0K	$0	-$3.0K	2026-06-03
Rockefeller Capital Management L.P.	CLOSED	0	5,000	-5,000	-100%	$3.0K	$0	-$3.0K	2026-05-14
Tower Research Capital LLC (TRC)	CLOSED	0	3,999	-3,999	-100%	$2.4K	$0	-$2.4K	2026-05-15
Huntington National Bank	CLOSED	0	3,000	-3,000	-100%	$1.8K	$0	-$1.8K	2026-05-15
Robinswood Financial LLC	CLOSED	0	2,557	-2,557	-100%	$1.5K	$0	-$1.5K	2026-07-13
Harbour Investments, Inc.	CLOSED	0	1,656	-1,656	-100%	$977	$0	-$977	2026-05-15
SBI Securities Co., Ltd.	CLOSED	0	1,565	-1,565	-100%	$923	$0	-$923	2026-04-28
TD Waterhouse Canada Inc.	CLOSED	0	1,555	-1,555	-100%	$910	$0	-$910	2026-05-12
BNP Paribas Financial Markets	CLOSED	0	1,497	-1,497	-100%	$883	$0	-$883	2026-05-12
Royal Bank of Canada	CLOSED	0	943	-943	-100%	$1.0K	$0	-$1.0K	2026-05-15
Optiver Holding B.V.	CLOSED	0	838	-838	-100%	$494	$0	-$494	2026-06-02
Allworth Financial LP	CLOSED	0	702	-702	-100%	$415	$0	-$415	2026-05-15
Jones Financial Companies Lllp	CLOSED	0	700	-700	-100%	$413	$0	-$413	2026-05-15
Northwestern Mutual Wealth Management Co	CLOSED	0	500	-500	-100%	$295	$0	-$295	2026-05-07
Nisa Investment Advisors, LLC	CLOSED	0	350	-350	-100%	$207	$0	-$207	2026-04-30
Lanark Financial, Inc.	CLOSED	0	150	-150	-100%	$88	$0	-$88	2026-04-14
Wells Fargo & Company	CLOSED	0	83	-83	-100%	$49	$0	-$49	2026-07-08
Hantz Financial Services, Inc.	CLOSED	0	82	-82	-100%	$0	$0	$0	2026-05-01
Clearstead Advisors, LLC	CLOSED	0	70	-70	-100%	$42	$0	-$42	2026-05-06
CWM, LLC	CLOSED	0	50	-50	-100%	$0	$0	$0	2026-05-14
Arax Advisory Partners	CLOSED	0	42	-42	-100%	$25	$0	-$25	2026-05-13
Vanguard Group Inc	DECREASED	0	6,147,838	-6,147,838	-100%	$3.6M	$0	-$3.6M	2026-05-14
Greenberg Financial Group	N/A	—	18,216	-18,216	-100%	$10.7K	—	—	—

Showing 65 of 65 institutions