Mike Burns is CFO at Gigamon Inc. (GIMO). They have made 2 open-market trades across 2 companies since 2009, most recently 2026-06-09.
CIK 0001409173
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 $28K since 2025, against 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| IMPV | 58,701 | $3.3M |
| GIMO | 78,705 | $3.0M |
| RPD | 31,405 | $474K |
| VLTR | 3,712 | — |
| Total | $6.8M |
Shares reported on the most recent Form 4, priced at the 2026-06-10 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| RPD | BUY | 2025-11-20 | 2025-11-24 | $13.80 | $28K | +7.5% | +3.2% | -58.8% |
| GIMO | SELL · 10b5-1 | 2016-09-22 | 2016-09-23 | $54.24 | $112K | -2.8% | -3.8% | -11.4% |
| GIMO | SELL · 10b5-1 | 2016-09-19 | 2016-09-20 | $52.10 | $52K | +5.1% | -2.9% | -8.6% |
| GIMO | SELL · 10b5-1 | 2016-08-22 | 2016-08-23 | $45.00 | $93K | -1.9% | +19.0% | +32.3% |
| GIMO | SELL · 10b5-1 | 2016-08-17 | 2016-08-19 | $45.16 | $157K | -1.8% | +19.3% | +28.8% |
| GIMO | SELL · 10b5-1 | 2016-08-01 | 2016-08-03 | $45.41 | $139K | +5.4% | +0.2% | +22.9% |
| GIMO | SELL · 10b5-1 | 2016-07-08 | 2016-07-11 | $40.00 | $640K | -3.5% | +11.2% | +29.3% |
| GIMO | SELL · 10b5-1 | 2016-06-22 | 2016-06-23 | $37.27 | $77K | +2.3% | +15.6% | +46.1% |
| GIMO | SELL · 10b5-1 | 2016-06-20 | 2016-06-21 | $37.00 | $306K | +0.6% | +6.8% | +44.5% |
| GIMO | SELL · 10b5-1 | 2016-06-09 | 2016-06-10 | $33.88 | $707K | +14.4% | +23.0% | +38.9% |
| GIMO | SELL · 10b5-1 | 2016-05-23 | 2016-05-24 | $30.00 | $69K | +5.9% | +23.5% | +44.1% |
| GIMO | SELL · 10b5-1 | 2016-03-14 | 2016-03-15 | $30.01 | $654K | +6.3% | +5.5% | +13.6% |
| GIMO | SELL · 10b5-1 | 2015-11-03 | 2015-11-04 | $28.09 | $121K | -14.3% | +0.2% | -1.7% |
| GIMO | SELL · 10b5-1 | 2015-10-28 | 2015-10-30 | $28.02 | $216K | -14.3% | +0.2% | -15.5% |
| GIMO | SELL · 10b5-1 | 2015-10-26 | 2015-10-28 | $26.38 | $121K | -14.3% | +0.2% | -5.9% |
| VLTR | SELL | 2012-05-02 | 2012-05-03 | $32.52 | $141K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2012-03-26 | 2012-03-27 | $34.00 | $340K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2012-03-01 | 2012-03-05 | $30.78 | $914K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2012-01-23 | 2012-01-25 | $29.00 | $381K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2010-06-03 | 2010-06-03 | $24.00 | $150K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2010-05-03 | 2010-05-04 | $24.19 | $83K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2010-03-02 | 2010-03-04 | $24.00 | $750K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2010-02-01 | 2010-02-02 | $19.48 | $213K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2010-01-26 | 2010-01-27 | $20.04 | $501K | N/A | N/A | N/A |
| VLTR | SELL · 10b5-1 | 2009-11-16 | 2009-11-18 | $16.00 | $15K | 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.