QUANTUM CORP /DE/ (QTM) has 51 open-market insider trades by 26 insiders since 2007. The most active filer is Edward M. Esber, Director.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Jeffrey C. Smith | 10% Owner | — | 5 | $16.7M | 2016-12-05 |
| Mark R. Mitchell | 10% Owner | — | 1 | $14.3M | 2016-12-06 |
| Starboard VALUE & Opportunity S LLC via Mark R. Mitchell | 10% Owner | — | 1 | $7.2M | 2016-12-06 |
| Starboard Principal Co GP LLC via Jeffrey C. Smith | 10% Owner | — | 2 | $4.3M | 2016-03-18 |
| Starboard Value R GP LLC via Jeffrey C. Smith | 10% Owner | — | 1 | $3.1M | 2016-12-05 |
| Peter A. Feld | 10% | — | 1 | $1.8M | 2013-04-03 |
| Starboard Principal Co LP | 10% | — | 1 | $1.2M | 2013-03-13 |
| Dialectic Antithesis Partners, LP via John Fichthorn | 10% Owner | — | 1 | $1.1M | 2018-12-28 |
| BRC Partners Management GP, LLC | 10% Owner | — | 1 | $795K | 2019-01-09 |
| Robert S. Clark | VP | — | 2 | $619K | 2017-07-10 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| BRC Partners Management GP, LLC | 10% Owner | Buy | $795K | 2019-01-09 |
| BR Dialectic Capital Management, LLC | 10% Owner | Buy | $121K | 2018-12-31 |
| Dialectic Antithesis Partners, LP | 10% Owner | Buy | $1.1M | 2018-12-27 |
| Fuad Ahmad | CFO & SVP | Sell | $4K | 2018-03-19 |
| Jon W. Gacek | President | Sell | $36K | 2017-10-02 |
| Jon W. Gacek | CEO & President | Sell | $67K |
Companies that share insiders with QTM, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| 2017-09-01 |
| Fuad Ahmad | CFO & VP | Sell | $144K | 2017-07-17 |
| Robert S. Clark | VP | Sell | $1.0M | 2017-07-10 |
| Shawn D. Hall | VP & Secretary | Sell | $78K | 2017-07-03 |
| Starboard VALUE & Opportunity S LLC | 10% | Sell | $7.2M | 2016-12-06 |
| Mark R. Mitchell | 10% Owner | Sell | $14.3M | 2016-12-06 |
| Jeffrey C. Smith | 10% Owner | Sell | $6.4M | 2016-12-01 |
| Starboard Value R GP LLC | 10% | Sell | $3.1M | 2016-12-01 |
| Jeffrey C. Smith | 10% Owner | Sell | $1.7M | 2016-03-16 |
| Starboard Principal Co GP LLC | 10% | Sell | $723K | 2016-03-16 |