Marker Therapeutics MRKR Insider Ownership

NASDAQ MRKR
$1.11 -0.02 (-1.55%)
As of: Oct 22, 2026 · 12:52 PM EDT

Insider Holdings by Owner

2.28Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026
Insider Ownership
11.50%
■0% pp QoQ
Shares Held by Insiders
2.22Mn
filed for Sep 2026
■0.00% QoQ
Shares Outstanding
19.31Mn
19,314,742 shares
Direct Holdings
1.90Mn
Indirect: 325.37K
Net Shares Traded (QoQ)
0
no net change in Sep 2026
Insiders Holding Shares
5
with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding
Latest —
Average ownership —
Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold
Latest quarter —
Net over range —
Buying quarters —

Insider Ownership Summary

Over the past 12 months, Marker Therapeutics insiders made no open-market purchases or sales of the stock.

Form 4 Holdings

Insiders Holding MRKR

Insiders 5
Shares held 2.28Mn
Of outstanding 11.79%
# Insider Position Direct Indirect Total Share of Insiders Last Filed
1 Enterprise Associates 16, L.P. New TenPercentOwner 1,625,678 0 1,625,678 71.4% 23 Dec, 2024
2 Steve Elms Director 0 325,370 325,370 14.3% 26 Dec, 2024
3 Juan Vera Chief Scientific Officer Coo 267,185 0 267,185 11.7% 28 Mar, 2022
4 Peter L. Hoang President And Ceo 48,329 0 48,329 2.1% 28 Mar, 2022
5 Anthony H. Kim Chief Financial Officer 11,444 0 11,444 0.5% 28 Mar, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

176 Insider Transactions

Source SEC Form 4
Latest quarter Sep 2026
Download Data
Date Insider Position Transaction Shares Price Value Shares Held After Ownership
17 Nov, 2025 Norman David Eansor Director Acquired A 84,411 $0.00 $0 84,411 Direct
17 Nov, 2025 Katharine Knobil Director Acquired A 84,411 $0.00 $0 84,411 Direct
17 Nov, 2025 Steve Elms Director Acquired A 84,411 $0.00 $0 84,411 Direct
17 Nov, 2025 Katharine Knobil Director Acquired A 137,330 $0.00 $0 137,330 Direct
17 Nov, 2025 Steve Elms Director Acquired A 137,330 $0.00 $0 137,330 Direct
17 Nov, 2025 Norman David Eansor Director Acquired A 137,330 $0.00 $0 137,330 Direct
31 Oct, 2025 Juan Vera Chief Executive Officer Acquired A 250,000 $0.00 $0 250,000 Direct
31 Oct, 2025 Kathryn Penkus Corzo Director Acquired A 147,611 $0.00 $0 147,611 Direct
12 Feb, 2025 Juan Vera President And Ceo Acquired A 50,000 $0.00 $0 50,000 Direct
12 Feb, 2025 Katharine Knobil Director Acquired A 30,000 $0.00 $0 30,000 Direct
12 Feb, 2025 Norman David Eansor Director Acquired A 30,000 $0.00 $0 30,000 Direct
12 Feb, 2025 Steve Elms Director Acquired A 30,000 $0.00 $0 30,000 Direct
23 Dec, 2024 Steve Elms Director Acquired P 11,085 $3.20 $35.47K 325,370 Indirect
23 Dec, 2024 Enterprise Associates 16, L.P. New TenPercentOwner Acquired P 554,250 $3.20 $1.77Mn 1,625,678 Direct
06 Jun, 2023 Steve Elms Director Acquired A 8,000 $0.00 $0 8,000 Direct
06 Jun, 2023 John Robert Wilson Director Acquired A 8,000 $0.00 $0 8,000 Direct
06 Jun, 2023 Katharine Knobil Director Acquired A 8,000 $0.00 $0 8,000 Direct
10 May, 2023 Juan Vera President And Ceo Acquired A 100,000 $0.00 $0 100,000 Direct
27 Feb, 2023 Juan Vera Chief Scientific Officer Coo Acquired A 46,487 $0.00 $0 46,487 Direct
27 Feb, 2023 Anna Szymanska Vice President, Quality Acquired A 29,947 $0.00 $0 29,947 Direct