Insider Trading for MRKR
View recent insider trading activity including purchases, sales, and awards. Insider trading can provide insights into how executives view their company's prospects.
Insider Trading Summary
Shares Acquired
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Shares Disposed
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Net Position
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Recent Activity (30 Days)
No insider transactions in the past 30 days.
Quarterly Activity (3 Months)
No insider transactions in the past 3 months.
Key Insider Activity: Feb 15, 2020 to Nov 17, 2025
New Enterprise Associates 16, L.P.
Other10 Percent Owner
+6.3M shares
2 transactions
Walker Paul Edward
Other10 Percent Owner
+5.7M shares
1 transactions
Sonsini Peter W.
Other10 Percent Owner
+5.7M shares
1 transactions
SANDELL SCOTT D
Other10 Percent Owner
+5.7M shares
1 transactions
MAKOWER JOSHUA
Other10 Percent Owner
+5.7M shares
1 transactions
Transaction Details
| Date | Insider | Role | Transaction | Shares | Price | Value | Owned After | SEC Filing |
|---|---|---|---|---|---|---|---|---|
| Nov 17, 2025 | Knobil Katharine | DDirector | Award/Grant | 137.3K | $0.95 | $131,122.68 | 137.3K | View |
| Nov 17, 2025 | Knobil Katharine | DDirector | Award/Grant | 84.4K | $0.95 | $80,595.62 | 84.4K | View |
| Nov 17, 2025 | Eansor Norman David | DDirector | Award/Grant | 137.3K | $0.95 | $131,122.68 | 137.3K | View |
Nov 17, 2025 | Locked | — | — | — | — | — | — | — |
Nov 17, 2025 | Locked | — | — | — | — | — | — | — |
Nov 17, 2025 | Locked | — | — | — | — | — | — | — |
Oct 31, 2025 | Locked | — | — | — | — | — | — | — |
Oct 31, 2025 | Locked | — | — | — | — | — | — | — |
Oct 31, 2025 | Locked | — | — | — | — | — | — | — |
Feb 12, 2025 | Locked | — | — | — | — | — | — | — |
Feb 12, 2025 | Locked | — | — | — | — | — | — | — |
Feb 12, 2025 | Locked | — | — | — | — | — | — | — |
Feb 12, 2025 | Locked | — | — | — | — | — | — | — |
Dec 23, 2024 | Locked | — | — | — | — | — | — | — |
Dec 23, 2024 | Locked | — | — | — | — | — | — | — |
Jun 30, 2023 | Locked | — | — | — | — | — | — | — |
Jun 6, 2023 | Locked | — | — | — | — | — | — | — |
Jun 6, 2023 | Locked | — | — | — | — | — | — | — |
Jun 6, 2023 | Locked | — | — | — | — | — | — | — |
Jun 6, 2023 | Locked | — | — | — | — | — | — | — |
May 10, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
Feb 27, 2023 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
May 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Mar 24, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Feb 17, 2022 | Locked | — | — | — | — | — | — | — |
Dec 8, 2021 | Locked | — | — | — | — | — | — | — |
Dec 8, 2021 | Locked | — | — | — | — | — | — | — |
Jun 8, 2021 | Locked | — | — | — | — | — | — | — |
Jun 8, 2021 | Locked | — | — | — | — | — | — | — |
Jun 8, 2021 | Locked | — | — | — | — | — | — | — |
Jun 8, 2021 | Locked | — | — | — | — | — | — | — |
Jun 8, 2021 | Locked | — | — | — | — | — | — | — |
May 18, 2021 | Locked | — | — | — | — | — | — | — |
Mar 25, 2021 | Locked | — | — | — | — | — | — | — |
Mar 25, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Mar 16, 2021 | Locked | — | — | — | — | — | — | — |
Feb 11, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Feb 10, 2021 | Locked | — | — | — | — | — | — | — |
Dec 31, 2020 | Locked | — | — | — | — | — | — | — |
Dec 31, 2020 | Locked | — | — | — | — | — | — | — |
Dec 31, 2020 | Locked | — | — | — | — | — | — | — |
Dec 31, 2020 | Locked | — | — | — | — | — | — | — |
Dec 31, 2020 | Locked | — | — | — | — | — | — | — |
Nov 9, 2020 | Locked | — | — | — | — | — | — | — |
Jun 16, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Mar 10, 2020 | Locked | — | — | — | — | — | — | — |
Feb 15, 2020 | Locked | — | — | — | — | — | — | — |
Click "View" in the SEC Filing column to access the detailed SEC form submission for each transaction.
Executive Activity:
Executives have been net buyers of MRKR stock, which is typically a strong positive signal.