MRKR · Marker Therapeutics, Inc.

$1.37 -0.09 (-6.16%) At close · Aug 28

Market Cap

$22.84M

16.67M

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.

Quarter:

Holders: 35

Total Value: $5,835,896

Total Shares: 3,970,010

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 35 13F filers · Δ vs Mar 31, 2026

Top Holder

40.9%

−0.7 pts

Top 5

80.1%

+1.5 pts

Top 10

92.5%

+1.3 pts

HHI

2,132

Moderately concentrated−35

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: -1

Institutional value: +15.0%

Shares held: +1.7%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Large RENAISSANCE TECHNOLOGIES LLC	+74,129	249,423
Mega VANGUARD CAPITAL MANAGEMENT LLC	+36,850	426,169
Large OSAIC HOLDINGS, INC.	+19,528	112,649
Mega NORTHERN TRUST CORP	+8,620	34,629
Mega LPL Financial LLC	+100	83,147

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega UBS Group AG	−24,219	8,150
Mega GEODE CAPITAL MANAGEMENT, LLC	−21,094	139,816
Mega JANE STREET GROUP, LLC	−19,471	16,832
Mid XTX Topco Ltd	−18,210	45,357
Small Invst, LLC	−11,000	18,000

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mid Concurrent Investment Advisors, LLC	67,963	$99,905
Mega CITADEL ADVISORS LLC	32,517	$47,799
Mid Virtu Financial LLC	11,574	$17,013
Mega BARCLAYS PLC	63	$92

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP	48,780	$63,414
Mid MATRIX ASSET ADVISORS INC/NY	15,000	$19,500
Large HRT FINANCIAL LP	11,852	$15,407
Small TWO SIGMA SECURITIES, LLC	11,460	$14,898
Mid Western Wealth Management, LLC	368	$478

Filter: New 4 Increased 6 Reduced 7 Sold out 5 Unchanged 18

Showing 35 of 35

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

NEA Management Company, LLC

$2,389,746

40.95%

1,625,678

Blue Owl Capital Holdings LP

$814,747

13.96%

554,250

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

Manager	Shares	Value (USD)	% of position	Discretion
Blue Owl Healthcare Opportunities Advisors LLC	554,250	$814,747	100.0%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$626,468

10.73%

426,169

Aisling Capital Management LP

$478,293

8.20%

325,370

RENAISSANCE TECHNOLOGIES LLC

$366,651

6.28%

249,423

GEODE CAPITAL MANAGEMENT, LLC

$205,529

3.52%

139,816

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	31,818	$46,772	22.8%	Defined
Held directly	107,998	$158,757	77.2%	Defined

OSAIC HOLDINGS, INC.

$165,593

2.84%

112,649

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	100,847	$148,245	89.5%	Defined
Osaic Advisory Services, LLC	11,802	$17,348	10.5%	Defined

VANGUARD FIDUCIARY TRUST CO

$128,285

2.20%

87,269

LPL Financial LLC

$122,226

2.09%

83,147

Concurrent Investment Advisors, LLC

$99,905

1.71%

67,963

TWO SIGMA INVESTMENTS, LP

$88,495

1.52%

60,201

XTX Topco Ltd

$66,674

1.14%

45,357

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	45,357	$66,674	100.0%	Defined

NORTHERN TRUST CORP

$50,904

0.87%

34,629

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	34,629	$50,904	100.0%	Defined

CITADEL ADVISORS LLC

$47,799

0.82%

32,517

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	32,517	$47,799	100.0%	Defined

STATE STREET CORP

$30,793

0.53%

20,948

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 TRUST COMPANY	20,948	$30,793	100.0%	Defined

Invst, LLC

$26,460

0.45%

18,000

Creative Planning

$25,448

0.44%

17,312

JANE STREET GROUP, LLC

$24,742

0.42%

16,832

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

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	9,480	$13,935	56.3%	Defined
Jane Street Global Trading, LLC	7,352	$10,807	43.7%	Defined

Ashton Thomas Private Wealth, LLC

$24,108

0.41%

16,400

Virtu Financial LLC

$17,013

0.29%

11,574

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

Manager	Shares	Value (USD)	% of position	Discretion
Virtu Americas LLC	11,574	$17,013	100.0%	Defined

FIFTH THIRD BANCORP

$14,700

0.25%

10,000

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

Manager	Shares	Value (USD)	% of position	Discretion
Fifth Third Bank, National Association	10,000	$14,700	100.0%	Defined

UBS Group AG

$11,980

0.21%

8,150

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

Manager	Shares	Value (USD)	% of position	Discretion
UBS AG	8,150	$11,980	100.0%	Defined

Vanguard Global Advisers, LLC

$3,692

0.06%

2,512

INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC

$2,940

0.05%

2,000

Tower Research Capital LLC (TRC)

$1,190

0.02%

810

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)	810	$1,190	100.0%	Defined

WELLS FARGO & COMPANY/MN

$341

0.01%

232

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

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	232	$341	100.0%	Defined

SIGNATUREFD, LLC

$335

0.01%

228

SBI Securities Co., Ltd.

$298

0.01%

203

GROUP ONE TRADING LLC

$261

0.00%

178

Hilltop National Bank

$107

0.00%

BARCLAYS PLC

$92

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS CAPITAL INC.	63	$92	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$33

0.00%

JPMORGAN CHASE & CO

$33

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	23	$33	100.0%	Defined

Caitong International Asset Management Co., Ltd

$13

0.00%

MORGAN STANLEY

0.00%

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

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO. LLC	1	$1	50.0%	Defined
MORGAN STANLEY SMITH BARNEY LLC	1	$1	50.0%	Defined

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

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	48,780	$63,414	100.0%	Other

Key facts CIK 1094038 CUSIP 57055L206 13F (30d) 29 filings 29 filers Visit website Investor relations