GLSI · Greenwich LifeSciences, Inc.

$14.02 +1.22 (+9.53%) At close · Jul 30

Market Cap

$205.79M

14.68M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.

Report Date:

Holders: 63

Total Value: $39,817,673

Total Shares: 1,658,236

Institutional Ownership Trend

24 quarters

Holder Concentration

Across 63 13F filers

Top Holder

26.2%

of institutional value

Top 5

67.1%

of institutional value

Top 10

82.0%

of institutional value

HHI

1,265

Broadly held

Showing 63 of 63

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

Mega BlackRock, Inc.

$10,421,313

26.17%

433,860

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	2,281	$54,789	0.5%	Sole
BlackRock Investment Management, LLC	18,587	$446,459	4.3%	Sole
BLACKROCK ADVISORS LLC	13,749	$330,250	3.2%	Sole
BlackRock Fund Advisors	226,055	$5,429,841	52.1%	Sole
BlackRock Institutional Trust Company, N.A.	165,639	$3,978,648	38.2%	Sole
Aperio Group, LLC	7,549	$181,326	1.7%	Sole

Mega VANGUARD CAPITAL MANAGEMENT LLC

$7,164,349

17.99%

298,266

Mega GEODE CAPITAL MANAGEMENT, LLC

$3,734,292

9.38%

155,466

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	22,679	$544,749	14.6%	Defined
Held directly	132,787	$3,189,543	85.4%	Defined

Mega STATE STREET CORP

$3,215,677

8.08%

133,875

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	133,875	$3,215,677	100.0%	Defined

Mega Nuveen, LLC

$2,130,981

5.35%

88,717

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TIAA CREF INVESTMENT MANAGEMENT LLC joint	80,595	$1,935,891	90.8%	Defined
TEACHERS ADVISORS, LLC joint	8,122	$195,090	9.2%	Defined

Mega NORTHERN TRUST CORP Bank

$1,804,501

4.53%

75,125

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	60,949	$1,463,994	81.1%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	13,217	$317,472	17.6%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	959	$23,035	1.3%	Other

Mega Bank of New York Mellon Corp Bank

$1,117,480

2.81%

46,523

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	4,790	$115,055	10.3%	Defined
The Bank of New York Mellon	8,841	$212,360	19.0%	Defined
BNY Mellon, NA joint	105	$2,522	0.2%	Defined
Newton Investment Management North America, LLC	32,786	$787,519	70.5%	Defined
Held directly	1	$24	0.0%	Defined

Mega VANGUARD FIDUCIARY TRUST CO Bank

$1,078,690

2.71%

44,908

Large Russell Investments Group, Ltd.

$953,519

2.39%

39,697

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	18,393	$441,799	46.3%	Defined
Russell Investments Capital, LLC	9,045	$217,260	22.8%	Defined
Russell Investments France SAS	4,113	$98,794	10.4%	Defined
Russell Investments Trust Company	8,146	$195,666	20.5%	Defined

Mega GOLDMAN SACHS GROUP INC

$949,293

2.38%

39,521

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	10,277	$246,853	26.0%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	29,244	$702,440	74.0%	Defined

Mid Ancora Advisors LLC

$900,750

2.26%

37,500

Mega MORGAN STANLEY

$716,441

1.80%

29,827

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	220	$5,284	0.7%	Defined
MORGAN STANLEY & CO. LLC	1,583	$38,023	5.3%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	17,698	$425,105	59.3%	Defined
MORGAN STANLEY SMITH BARNEY LLC	8,530	$204,890	28.6%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	1,796	$43,139	6.0%	Defined

Large SEI INVESTMENTS CO

$626,633

1.57%

26,088

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	26,088	$626,633	100.0%	Sole

Large MARSHALL WACE, LLP

$616,304

1.55%

25,658

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	25,658	$616,304	100.0%	Other

Small Informed Momentum Co LLC

$514,748

1.29%

21,430

Mega UBS Group AG

$507,205

1.27%

21,116

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	68	$1,633	0.3%	Defined
UBS AG	19,039	$457,316	90.2%	Defined
UBS Switzerland AG	2,009	$48,256	9.5%	Defined

Large STATE OF WISCONSIN INVESTMENT BOARD

$488,542

1.23%

20,339

Mega MILLENNIUM MANAGEMENT LLC

$417,899

1.05%

17,398

Large STRS OHIO

$417,588

1.05%

17,800

Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$398,804

1.00%

16,603

Mega Vanguard Global Advisers, LLC

$248,246

0.62%

10,335

Mega RAYMOND JAMES FINANCIAL INC

$236,284

0.59%

9,837

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	3,837	$92,164	39.0%	Defined
Raymond James Financial Services Advisors, Inc.	6,000	$144,120	61.0%	Defined

Mega RHUMBLINE ADVISERS

$193,264

0.49%

8,046

Mega DEUTSCHE BANK AG\ Bank

$123,991

0.31%

5,162

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	111	$2,666	2.2%	Defined
DWS Investments UK Ltd	5,051	$121,325	97.8%	Defined

Mega FMR LLC

$98,649

0.25%

4,107

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	4,077	$97,929	99.3%	Defined
STRATEGIC ADVISERS LLC	30	$720	0.7%	Defined

Large MetLife Investment Management, LLC

$91,612

0.23%

3,814

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	3,814	$91,612	100.0%	Defined

Large JONES FINANCIAL COMPANIES LLLP

$76,864

0.19%

3,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Edward D. Jones & Co., L.P.	3,200	$76,864	100.0%	Sole

Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund

$75,230

0.19%

3,132

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Global X Management CO LLC joint	3,132	$75,230	100.0%	Defined

Large Police & Firemen's Retirement System of New Jersey Pension

$64,937

0.16%

2,768

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Capital	2,768	$64,937	100.0%	Defined

Mega JPMORGAN CHASE & CO

$62,547

0.16%

2,604

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	2,586	$62,115	99.3%	Defined
J.P. Morgan Securities plc	18	$432	0.7%	Defined

Mega WELLS FARGO & COMPANY/MN

$58,608

0.15%

2,440

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	2,310	$55,486	94.7%	Defined
WELLS FARGO CLEARING SERVICES, LLC	130	$3,122	5.3%	Defined

Small NFSG Corp

$50,442

0.13%

2,100

Mega BNP PARIBAS ARBITRAGE, SA

$41,602

0.10%

1,732

Mid Tower Research Capital LLC (TRC)

$34,108

0.09%

1,420

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Tower Research Capital Investments LLC	1	$24	0.1%	Other
Latour Trading LLC (Latour)	1,419	$34,084	99.9%	Defined

Mid Farther Finance Advisors, LLC

$30,498

0.08%

1,300

Large NISA INVESTMENT ADVISORS, LLC

$28,824

0.07%

1,200

Large NEW YORK STATE COMMON RETIREMENT FUND Pension

$28,152

0.07%

1,200

Mega BARCLAYS PLC

$27,839

0.07%

1,159

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	1,054	$25,317	90.9%	Defined
BARCLAYS CAPITAL INC.	105	$2,522	9.1%	Defined

Mid Ameritas Investment Partners, Inc.

$14,051

0.04%

585

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
EATON VANCE MANAGEMENT	585	$14,051	100.0%	Other

Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$12,514

0.03%

521

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	521	$12,514	100.0%	Defined

Mega Legal & General Group Plc

$12,394

0.03%

516

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	516	$12,394	100.0%	Defined

Mega CITIGROUP INC

$8,165

0.02%

340

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	340	$8,165	100.0%	Defined

Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension

$8,142

0.02%

339

Mid Washington Trust Advisors, Inc.

$4,692

0.01%

200

Mid Optiver Holding B.V.

$2,305

0.01%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Optiver VOF	96	$2,305	100.0%	Defined

Mid Geneos Wealth Management Inc.

$2,113

0.01%

Mid GAMMA Investing LLC

$1,360

0.00%

Large CWM, LLC

$1,249

0.00%

Mid North Star Investment Management Corp.

$1,196

0.00%

Mid Sterling Capital Management LLC

$563

0.00%

Large US BANCORP \DE\ Bank

$360

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
US BANK NATIONAL ASSOCIATION	15	$360	100.0%	Defined

Large Federation des caisses Desjardins du Quebec

$312

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Desjardins Securities inc.	13	$312	100.0%	Defined

Mid Allworth Financial LP

$288

0.00%

Small SJS Investment Consulting Inc.

$258

0.00%

Mega PNC FINANCIAL SERVICES GROUP, INC.

$240

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	10	$240	100.0%	Defined

Small CVA Family Office, LLC Family Office

$240

0.00%

Large OSAIC HOLDINGS, INC.

$144

0.00%

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	6	$144	100.0%	Defined

Mega ROYAL BANK OF CANADA Bank

$144

0.00%

Mid EverSource Wealth Advisors, LLC

$117

0.00%

Small Sunbelt Securities, Inc. Broker-Dealer

$48

0.00%

Mid MAI Capital Management

$24

0.00%

Mid Arax Advisory Partners

$24

0.00%

Mid ROTHSCHILD INVESTMENT LLC

$24

0.00%

Key facts CIK 1799788 CUSIP 396879108 13F (30d) 10 filings 10 filers Visit website Investor relations