Ulrik B. Nielsen is Director at MERRIMACK PHARMACEUTICALS INC (MACK). They have made 6 open-market trades across 1 company since 2012, most recently 2022-01-24.
CIK 0001531962
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $121K since 2022, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| MACK | 36,968 | $559K |
Shares reported on the most recent Form 4, priced at the 2022-01-25 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MACK | BUY | 2022-01-24 | 2022-01-25 | $4.24 | $121K | +39.7% | +34.7% | +18.5% |
| MACK | SELL | 2017-09-15 | 2017-09-15 | $14.23 | $111K | +3.6% | -5.8% | -28.5% |
| MACK | SELL | 2017-09-14 | 2017-09-15 | $14.23 | $112K | +3.6% | -5.8% | -28.5% |
| MACK | SELL | 2017-09-11 | 2017-09-13 | $14.46 | $213K | +4.2% | -3.9% | -27.4% |
| MACK | SELL | 2017-09-11 | 2017-09-13 | $14.40 | $310K | +4.2% | -3.9% | -27.4% |
| MACK | SELL · 10b5-1 | 2015-07-20 | 2015-07-22 | $10.71 | $214K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-06-19 | 2015-06-19 | $12.02 | $481K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-05-19 | 2015-05-19 | $13.04 | $522K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-04-20 | 2015-04-20 | $12.88 | $515K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-03-19 | 2015-03-20 | $11.97 | $479K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-03-04 | 2015-03-06 | $12.01 | $240K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2015-02-23 | 2015-02-24 | $10.91 | $218K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2014-05-27 | 2014-05-29 | $8.01 | $841K | -22.2% | +0.7% | +0.7% |
| MACK | SELL · 10b5-1 | 2013-04-24 | 2013-04-26 | $5.40 | $57K | -22.2% | +0.7% | +0.7% |
| MACK | SELL | 2012-12-03 | 2012-12-04 | $7.37 | $553K | -22.2% | +0.7% | +0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.