William W. Ericson is Director & 10% Owner at Adamas Pharmaceuticals Inc (ADMS). They have made 20 open-market trades across 4 companies since 2013, most recently 2024-06-18.
CIK 0001503381
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.
15 open-market purchases totalling $17.1M since 2014, against 5 sales. Across 15 scored buys the stock is up 0.1% at ninety days, and 1.5 points behind the S&P over the same stretch.
15 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 20% | 80% | 80% |
| Avg Move | -0.5% | -0.4% | +0.1% |
| Alpha | +3.7% | -0.6% | -1.5% |
| Scored | 15 | 15 | 15 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PACB | SELL | 2023-03-15 | 2023-03-17 | $8.90 | $134K | +15.1% | +32.3% | +60.0% |
| PACB | SELL | 2021-05-25 | 2021-05-26 | $25.89 | $971K | +8.6% | +28.4% | +12.4% |
| ADMS | BUY | 2016-09-14 | 2016-09-16 | $16.48 | $2.1M | -0.9% | -17.5% | -11.5% |
| ADMS | BUY | 2016-09-12 | 2016-09-14 | $15.58 | $2.6M | +6.4% | -12.9% | -5.6% |
| ADMS | BUY | 2016-09-07 | 2016-09-09 | $15.68 | $1.9M | +17.8% | +9.9% | +5.2% |
| ADMS | BUY | 2016-09-02 | 2016-09-07 | $14.77 | $1.4M | +8.7% | -2.0% | -3.1% |
| ADMS | SELL · 10b5-1 | 2015-07-10 | 2015-07-14 | $27.53 | $238K | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-07-07 | 2015-07-09 | $27.55 | $794K | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-06-18 | 2015-06-22 | $27.54 | $436K | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-05-28 | 2015-06-01 | $18.02 | $2.2M | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-05-18 | 2015-05-20 | $18.04 | $30K | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-04-10 | 2015-04-14 | $18.56 | $688K | -13.8% | +0.8% | +0.8% |
| ADMS | SELL · 10b5-1 | 2015-03-17 | 2015-03-19 | $18.02 | $211K | -13.8% | +0.8% | +0.8% |
| PACB | BUY | 2014-08-19 | 2014-08-21 | $5.14 | $202K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-18 | 2014-08-20 | $5.09 | $688K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-14 | 2014-08-18 | $5.00 | $389K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-13 | 2014-08-15 | $4.93 | $145K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-12 | 2014-08-14 | $4.89 | $604K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-11 | 2014-08-21 | $4.87 | $698K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-08 | 2014-08-21 | $4.90 | $252K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-07 | 2014-08-21 | $4.77 | $698K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-06 | 2014-08-21 | $4.74 | $117K | -2.6% | +1.5% | +1.5% |
| PACB | BUY | 2014-08-05 | 2014-08-21 | $4.64 | $530K | -2.6% | +1.5% | +1.5% |
| ADMS | BUY | 2014-04-15 | 2014-04-15 | $16.00 | $4.8M | -13.8% | +0.8% | +0.8% |
| FUEL | SELL | 2014-01-30 | 2014-02-03 | $61.00 | $101.1M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.