Marker TherapeuticsMRKR

13F holders, Q1 2026 (March 31)
35holders −1
4new positions
7sold out
1famous investor
$1.30avg. 13F price*

At the end of Q1 2026, 35 institutions reported holding Marker Therapeutics Inc. (MRKR) in their 13F filings, down 1 from Q4 2025. 4 opened new positions and 7 sold out. The largest holders were NEA Management Company, LLC ($2.1M), Blue Owl Capital Holdings LP ($721K) and Vanguard Capital Management LLC ($506K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Marker Therapeutics Inc.
CUSIP
57055L206
Latest filing quarter
Q2 2026

History

Number of 13F holders

010203040 Q1 2024: 27Q1 2024Q2 2024: 27Q2 2024Q3 2024: 27Q3 2024Q4 2024: 32Q4 2024Q1 2025: 31Q1 2025Q2 2025: 31Q2 2025Q3 2025: 32Q3 2025Q4 2025: 36Q4 2025Q1 2026: 35Q1 2026Q2 2026: 35Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions4$79K
Exits7$370K

All 13F filers, Q4 2025 → Q1 2026: 159,030 shares bought and 433,658 shares sold, net −274,628 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 35 holders

NEA Management Company, LLC 0.12% No change 1,625,678 $2.1M
Blue Owl Capital Holdings LP 0.19% No change 554,250 $721K
Vanguard Capital Management LLC 0.00% — 389,319 $506K
Aisling Capital Management LP 0.09% No change 325,370 $423K
Renaissance Technologies 0.00% Add +41.8% 175,294 $228K
Geode Capital Management, LLC 0.00% Add +23.4% 160,910 $209K
Osaic Holdings, Inc. 0.00% Reduce -1.4% 93,121 $121K
Vanguard Fiduciary Trust Co. 0.00% — 87,269 $113K
LPL Financial LLC 0.00% Reduce -0.2% 83,047 $108K
XTX Topco Ltd 0.00% Add +9.5% 63,567 $83K
Two Sigma Investments, LP 0.00% Reduce -37.8% 61,001 $79K
Susquehanna International Group, LLP 0.00% New 48,780 $63K
Jane Street Group, LLC 0.00% Reduce -10.4% 36,303 $47K
UBS Group AG 0.00% Reduce -81.4% 32,369 $42K
Invst, LLC 0.00% Add +7.4% 29,000 $38K
Northern Trust Corp. 0.00% No change 26,009 $34K
State Street Corp. 0.00% No change 20,948 $27K
Creative Planning 0.00% No change 17,312 $23K
Ashton Thomas Private Wealth, LLC 0.00% Add +64.0% 16,400 $21K
Matrix Asset Advisors Inc. 0.00% No change 15,000 $20K
HRT Financial LP 0.00% Reduce -15.0% 11,852 $15K
Two Sigma Securities, LLC 0.00% New 11,460 $15K
Fifth Third Bancorp 0.00% No change 10,000 $13K
Tower Research Capital LLC (TRC) 0.00% Add +339.4% 3,137 $4K
Vanguard Global Advisers, LLC 0.00% — 2,512 $3K
International Assets Investment Management, LLC 0.00% No change 2,000 $3K
Wells Fargo & Company 0.00% Reduce -4.1% 232 $302
Signaturefd, LLC 0.00% New 228 $296
SBI Securities Co., Ltd. 0.00% No change 203 $264
Group One Trading LLC 0.00% No change 178 $231
Hilltop National Bank 0.00% No change 73 $95
BNP Paribas Financial Markets 0.00% No change 23 $30
JPMorgan Chase & Co. 0.00% No change 23 $29
Caitong International Asset Management Co., Ltd 0.00% New 3 $4
Morgan Stanley 0.00% Reduce -86.7% 2 $2

"% of holder's portfolio" is MRKR's weight in each manager's 13F, not the share of Marker Therapeutics Inc. the manager owns.