Merrimack Pharmaceuticals Inc
MACKDelisted May 10, 2024- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001274792
Merrimack Pharmaceuticals Inc was delisted on May 10, 2024; its insiders filed their last Form 4 on Dec 28, 2023; 70 institutions reported holding it in 13F filings for Q1 2024, worth $137.1M in total; no superinvestor held it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Merrimack Pharmaceuticals Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Merrimack Pharmaceuticals Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Western Standard Partners LP | Other: See Remarks | 534,008Indirect | Dec 28, 2023 | 0 |
| Western Standard LLC | Other: See Remarks | 534,008Indirect | Dec 28, 2023 | 0 |
| Andersen Eric | Director, Other: See remarks | 534,008Indirect | Dec 28, 2023 | 0 |
| Western Standard Partners QP, L.P. | Other: See Remarks | 534,008Indirect | Dec 28, 2023 | 0 |
| Crocker Gary L | See Remarks | 133,105Indirect | Aug 14, 2023 | 0 |
| Nielsen Ulrik B. | Director | 36,968Indirect | Jun 8, 2023 | 0 |
| Radeljevic Ana | Director | 4,156 | Jun 8, 2023 | 0 |
| Newtyn Partners, LP | Other: See Remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Newtyn TE Partners, LP | Other: See Remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Newtyn Management, LLC | Other: See Remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Levy Noah G. | Director, Other: See remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Newtyn Capital Partners, LP | Other: See Remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Ledo Capital, LLC | Other: See Remarks | 1,119,586Indirect | Jan 17, 2023 | 0 |
| Ray Russell T | Director | 0 | Jan 4, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Nov 20, 2023 (view filing)6:59 PM ET | Nov 17 | 3 days | Andersen Eric and 3 othersDirector, Other: See remarks | PPurchase | +300 | $12.50 | +$3.75K | +0.1%459.8K after | 2 lots |
| Dec 11, 2023 (view filing)4:05 PM ET | Dec 7 | 4 days | Andersen Eric and 3 othersDirector, Other: See remarks | PPurchase | +101.0K | $12.85 | +$1.30M | +26.4%484.5K after | 2 lots |
| Dec 28, 2023 (view filing)4:05 PM ET | Dec 26-28 | 2 days | Andersen Eric and 3 othersDirector, Other: See remarks | PPurchase | +49.5K | $13.15 | +$651.8K | +10.2%534.0K after | 2 lots |