Thomas L. Kempner files SEC Form 4 disclosures for DYAX CORP. They have made 30 open-market trades across 5 companies since 2006, most recently 2018-03-17.
CIK 0001091925
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.
12 open-market purchases totalling $5.8M since 2006, against 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| INTX | BUY | 2015-11-20 | 2015-11-24 | $2.50 | $5.0M | -14.1% | +1.4% | -17.3% |
| DYAX | SELL | 2015-09-08 | 2015-09-10 | $22.49 | $90K | N/A | N/A | N/A |
| DYAX | SELL | 2015-08-27 | 2015-08-31 | $23.82 | $428K | N/A | N/A | N/A |
| DYAX | SELL | 2015-08-18 | 2015-08-19 | $23.83 | $430K | N/A | N/A | N/A |
| DYAX | SELL | 2015-08-12 | 2015-08-14 | $23.81 | $115K | N/A | N/A | N/A |
| DYAX | SELL | 2015-08-07 | 2015-08-11 | $23.81 | $2.0M | N/A | N/A | N/A |
| DYAX | SELL | 2015-08-04 | 2015-08-06 | $24.24 | $102K | N/A | N/A | N/A |
| DYAX | SELL | 2014-12-05 | 2014-12-08 | $13.79 | $204K | N/A | N/A | N/A |
| DYAX | SELL | 2014-11-21 | 2014-11-24 | $13.20 | $1.3M | N/A | N/A | N/A |
| DYAX | SELL | 2014-09-11 | 2014-09-15 | $11.00 | $136K | N/A | N/A | N/A |
| DYAX | SELL | 2014-08-26 | 2014-08-27 | $10.39 | $384K | N/A | N/A | N/A |
| DYAX | SELL | 2014-08-07 | 2014-08-11 | $9.25 | $307K | N/A | N/A | N/A |
| DYAX | SELL | 2014-08-06 | 2014-08-21 | $9.67 | $1.1M | N/A | N/A | N/A |
| DYAX | SELL | 2014-03-04 | 2014-03-06 | $10.55 | $1.6M | N/A | N/A | N/A |
| DYAX | SELL | 2013-12-04 | 2013-12-06 | $8.37 | $3.3M | N/A | N/A | N/A |
| DYAX | SELL | 2012-12-11 | 2012-12-13 | $3.47 | $16K | N/A | N/A | N/A |
| DYAX | BUY | 2011-08-22 | 2011-08-24 | $1.10 | $4K | N/A | N/A | N/A |
| DYAX | BUY | 2011-08-18 | 2011-08-22 | $1.20 | $13K | N/A | N/A | N/A |
| DYAX | BUY | 2011-08-08 | 2011-08-10 | $1.27 | $37K | N/A | N/A | N/A |
| DYAX | BUY | 2011-08-05 | 2011-08-09 | $1.40 | $28K | N/A | N/A | N/A |
| DYAX | BUY | 2011-03-11 | 2011-03-16 | $1.50 | $30K | N/A | N/A | N/A |
| FCEL | BUY | 2010-06-25 | 2010-06-28 | $1.25 | $625K | -5.5% | +1.5% | +1.5% |
| DYAX | BUY | 2008-11-21 | 2008-11-25 | $2.00 | $6K | N/A | N/A | N/A |
| IGNE | BUY | 2006-12-19 | 2006-12-22 | $0.03 | $3K | N/A | N/A | N/A |
| IGNE | BUY | 2006-12-19 | 2006-12-22 | $0.25 | $25K | 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.