MARTEK BIOSCIENCES CORP (MATK) has 19 open-market insider trades by 11 insiders since 2006. The most active filer is Steve Dubin, CEO.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Dsm N.v. Royal | 10% | — | 2 | $503.2M | 2011-02-24 |
| Peter L. Buzy | CFOTreasurer | — | 2 | $1.2M | 2011-02-25 |
| Douglas J. MacMaster Jr. | Dir | — | 2 | $386K | 2011-02-25 |
| John H. Mahar | Dir | — | 2 | $261K | 2006-06-21 |
| Steve Dubin | CEO | — | 4 | $204K | 2011-02-25 |
| Robert J. Flanagan | Dir | — | 2 | $106K | 2011-02-25 |
| Harry J. D'Andrea | Dir | — | 1 | $51K | 2011-02-25 |
| Polly B. Kawalek | Dir | — | 1 | $28K | 2011-02-25 |
| David M. Abramson | Pres | — | 1 | $22K | 2011-02-25 |
| Peter A. Nitze | COO | — | 1 | $21K | 2011-02-25 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Dsm N.v. Royal | 10% | Buy | $8.3M | 2011-02-22 |
| Dsm N.v. Royal | 10% | Buy | $495.0M | 2011-02-22 |
| Steve Dubin | CEO | Buy | $42K | 2010-07-07 |
| Douglas J. MacMaster Jr. | Director | Sell | $117K | 2009-09-23 |
| Douglas J. MacMaster Jr. | Director | Sell | $269K | 2008-06-18 |
| Harry J. D'Andrea | Director | Sell | $51K | 2008-06-18 |
Companies that share insiders with MATK, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| James Beery | Director | Sell | $14K | 2007-12-21 |
| Steve Dubin | CEO | Buy | $28K | 2007-12-18 |
| Peter L. Buzy | CFO & Treasurer | Sell | $1.1M | 2007-12-18 |
| David M. Abramson | President | Buy | $22K | 2007-04-05 |
| Peter A. Nitze | COO | Buy | $21K | 2007-04-04 |
| Peter L. Buzy | CFO & Treasurer | Buy | $82K | 2007-04-04 |
| Steve Dubin | CEO | Buy | $51K | 2007-03-30 |
| Robert J. Flanagan | Director | Buy | $54K | 2006-09-12 |
| Robert J. Flanagan | Director | Buy | $52K | 2006-09-11 |