GTBP · GT Biopharma, Inc. · Holdings

$6.47 -0.41 (-5.89%) At close · Sep 30

Market Cap

$12.43M

1.80M

Volume · Sep 30 29.76K Avg daily vol (16 sessions) 145.1K

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.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

Quarter:

Holders: 59

Total Value: $1,029,556

Total Shares: 2,101,165

Institutional Ownership Trend

23 quarters

Holder Concentration

Across 59 13F filers · Δ vs Mar 31, 2026

Top Holder

17.9%

−10.4 pts

Top 5

51.2%

−19.7 pts

Top 10

69.3%

−13.0 pts

HHI

754

Broadly held−684

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +17

Institutional value: +58.1%

Shares held: +30.3%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large OSAIC HOLDINGS, INC.	+700	1,540
Mid StoneX Group Inc.	+340	930
Mega ROYAL BANK OF CANADA	+299	304
Mega LPL Financial LLC	+240	1,455
Mega MORGAN STANLEY	+239	903

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega VANGUARD CAPITAL MANAGEMENT LLC	−3,019	15,056
Mega UBS Group AG	−1,839	0
Mega GEODE CAPITAL MANAGEMENT, LLC	−1,106	10,672
Mid TWO SIGMA SECURITIES, LLC	−737	535
Mega BlackRock, Inc.	−4	332

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Large HRT FINANCIAL LP	4,286	$52,498
Mid Everhart Financial Group, Inc.	4,000	$49,000
Small Opal Wealth Advisors, LLC	3,272	$40,087
Mega NORTHERN TRUST CORP	3,018	$36,975
Small ALONGSIDE, LLC	2,560	$31,360

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mega CITADEL ADVISORS LLC	2,647	$26,995
Mid Invst, LLC	936	$9,547
Large Cerity Partners LLC	801	$8,169
Mid Virtu Financial LLC	595	$6,069
Mega FMR LLC	40	$408

Filter: New 22 Increased 8 Reduced 7 Sold out 5 Unchanged 22

Showing 59 of 59

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

VANGUARD CAPITAL MANAGEMENT LLC

$184,435

17.91%

376,399

GEODE CAPITAL MANAGEMENT, LLC

$130,725

12.70%

266,788

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	34,301	$16,807	12.9%	Defined
Held directly	232,487	$113,918	87.1%	Defined

VANGUARD FIDUCIARY TRUST CO

$110,709

10.75%

225,938

HRT FINANCIAL LP

$52,498

5.10%

107,140

Everhart Financial Group, Inc.

$49,000

4.76%

100,000

Arax Advisory Partners

$45,877

4.46%

93,627

Opal Wealth Advisors, LLC

$40,087

3.89%

81,811

NORTHERN TRUST CORP

$36,975

3.59%

75,461

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	75,461	$36,975	100.0%	Defined

ALONGSIDE, LLC

$31,360

3.05%

64,000

49 WEALTH MANAGEMENT, LLC

$31,360

3.05%

64,000

Cetera Investment Advisers

$27,408

2.66%

55,936

SeaCrest Wealth Management, LLC

$24,549

2.38%

50,100

KITCHING PARTNERS, LLC

$24,500

2.38%

50,000

PNC FINANCIAL SERVICES GROUP, INC.

$19,600

1.90%

40,000

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	40,000	$19,600	100.0%	Defined

OSAIC HOLDINGS, INC.

$18,865

1.83%

38,500

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	11,000	$5,390	28.6%	Defined
Osaic Advisory Services, LLC	27,500	$13,475	71.4%	Defined

LPL Financial LLC

$17,825

1.73%

36,379

StoneX Group Inc.

$11,396

1.11%

23,258

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

Manager	Shares	Value (USD)	% of position	Discretion
STONEX FINANCIAL INC.	23,258	$11,396	100.0%	Defined

MORGAN STANLEY

$11,060

1.07%

22,573

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	22,573	$11,060	100.0%	Defined

Keel Point, LLC

$10,176

0.99%

20,768

Integrated Wealth Concepts LLC

$9,802

0.95%

20,006

Private Wealth Management Group, LLC

$9,800

0.95%

20,000

Corient Private Wealth LLC

$9,800

0.95%

20,000

SAGESPRING WEALTH PARTNERS, LLC

$9,800

0.95%

20,000

Coston, McIsaac & Partners

$8,375

0.81%

17,092

Caitlin John, LLC

$8,085

0.79%

16,500

WELLS FARGO & COMPANY/MN

$7,833

0.76%

15,986

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

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	10,000	$4,900	62.6%	Defined
WELLS FARGO CLEARING SERVICES, LLC	5,986	$2,933	37.4%	Defined

AM INVESTMENT STRATEGIES LLC

$7,350

0.71%

15,000

Tempus Wealth Planning, LLC

$7,350

0.71%

15,000

TWO SIGMA SECURITIES, LLC

$6,559

0.64%

13,386

Prospera Financial Services Inc

$6,125

0.59%

12,500

Verdence Capital Advisors LLC

$5,880

0.57%

12,000

LaSalle St. Investment Advisors, LLC

$5,390

0.52%

11,000

Mayflower Financial Advisors, LLC

$5,390

0.52%

11,000

PARSONS CAPITAL MANAGEMENT INC/RI

$5,341

0.52%

10,900

HBK Sorce Advisory LLC

$4,900

0.48%

10,000

Koss-Olinger Consulting, LLC

$4,900

0.48%

10,000

NORTH STAR ASSET MANAGEMENT INC

$4,900

0.48%

10,000

BlackRock, Inc.

$4,072

0.40%

8,312

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

Manager	Shares	Value (USD)	% of position	Discretion
BlackRock Institutional Trust Company, N.A.	8,312	$4,072	100.0%	Sole

ROYAL BANK OF CANADA

$3,724

0.36%

7,600

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	7,600	$3,724	100.0%	Defined

Atlantic Union Bankshares Corp

$2,621

0.25%

5,351

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

Manager	Shares	Value (USD)	% of position	Discretion
Atlantic Union Bankshares Corp	5,351	$2,621	100.0%	Sole

Allworth Financial LP

$2,205

0.21%

4,501

NFSG Corp

$1,837

0.18%

3,750

Farther Finance Advisors, LLC

$1,470

0.14%

3,000

MassMutual Private Wealth & Trust, FSB

$1,470

0.14%

3,000

West Financial Advisors, LLC

$1,225

0.12%

2,500

Stone House Investment Management, LLC

$1,001

0.10%

2,043

Tower Research Capital LLC (TRC)

$831

0.08%

1,696

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

Manager	Shares	Value (USD)	% of position	Discretion
Latour Trading LLC (Latour)	1,696	$831	100.0%	Defined

Triumph Capital Management

$810

0.08%

1,655

JONES FINANCIAL COMPANIES LLLP

$735

0.07%

1,500

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.	1,500	$735	100.0%	Sole

BARCLAYS PLC

$706

0.07%

1,441

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	1,441	$706	100.0%	Defined

Reyes Financial Architecture, Inc.

$306

0.03%

625

HARBOUR INVESTMENTS, INC.

$245

0.02%

500

Global Retirement Partners, LLC

$245

0.02%

500

Hilltop National Bank

$49

0.00%

100

IFG Advisory, LLC

$16

0.00%

BNP PARIBAS ARBITRAGE, SA

0.00%

UBS Group AG

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	2	$1	100.0%	Defined

SBI Securities Co., Ltd.

0.00%

JPMORGAN CHASE & CO

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
J.P. Morgan Securities plc	1	$0	—	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	66,165	$26,995	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	14,876	$6,069	100.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
STRATEGIC ADVISERS LLC	1,000	$408	100.0%	Defined

Key facts CIK 109657 CUSIP 36254L308 13F (30d) 1 filings 1 filers Visit website Investor relations