MERRIMACK PHARMACEUTICALS INC

PrivateCIK: 1274792
Location

CAMBRIDGE, MA

ARYEH JASON

4
LIGAND PHARMACEUTICALS INC
Jun 12, 2026·Jun 12, 2026
5 txn

ARYEH JASON

144
LIGAND PHARMACEUTICALS INC
Jun 11, 2026·Jun 11, 2026
-2

ARYEH JASON

144
LIGAND PHARMACEUTICALS INC
Jun 10, 2026·Jun 10, 2026

ARYEH JASON

144
LIGAND PHARMACEUTICALS INC
Jun 10, 2026·Jun 10, 2026

ARYEH JASON

4
LIFECORE BIOMEDICAL, INC. \DE\
Jun 5, 2026·Jun 5, 2026
1 txn

22NW, LP

13F-HR

Holdings

May 15, 2026·May 15, 2026

NEWTYN MANAGEMENT, LLC

13F-HR

Holdings

May 15, 2026·May 15, 2026

WESTERN STANDARD LLC

13F-HR

Holdings

May 5, 2026·May 5, 2026

ENGLISH ARON R.

4
FOSTER L B CO
Apr 2, 2026·Apr 2, 2026
3 txn

ENGLISH ARON R.

4
FOSTER L B CO
Mar 30, 2026·Mar 30, 2026
4 txn

ENGLISH ARON R.

4
FOSTER L B CO
Mar 25, 2026·Mar 25, 2026
4 txn

ENGLISH ARON R.

4
STONERIDGE INC
Mar 18, 2026·Mar 18, 2026
1 txn

ENGLISH ARON R.

4
FOSTER L B CO
Mar 6, 2026·Mar 6, 2026
2 txn

NEWTYN MANAGEMENT, LLC

13F-HR

Holdings

Feb 17, 2026·Feb 17, 2026

22NW, LP

13F-HR

Holdings

Feb 13, 2026·Feb 13, 2026

WESTERN STANDARD LLC

13F-HR

Holdings

Feb 3, 2026·Feb 3, 2026

22NW FUND, LP

144
FOSTER L B CO
Dec 12, 2025·Dec 12, 2025
-2

ENGLISH ARON R.

4
FOSTER L B CO
Dec 12, 2025·Dec 12, 2025
3 txn

ENGLISH ARON R.

4
FOSTER L B CO
Dec 10, 2025·Dec 10, 2025
4 txn

ARYEH JASON

4
LIGAND PHARMACEUTICALS INC
Dec 8, 2025·Dec 8, 2025
4 txn

ENGLISH ARON R.

4
FOSTER L B CO
Dec 2, 2025·Dec 2, 2025
3 txn

ENGLISH ARON R.

4
FOSTER L B CO
Nov 25, 2025·Nov 25, 2025
4 txn

ENGLISH ARON R.

4
FOSTER L B CO
Nov 18, 2025·Nov 18, 2025
3 txn

NEWTYN MANAGEMENT, LLC

13F-HR

Holdings

Nov 14, 2025·Nov 14, 2025

22NW, LP

13F-HR

Holdings

Nov 14, 2025·Nov 14, 2025
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