Karen M. Anderson is CHRO at Mimecast Ltd (MIME). They have made 9 open-market trades across 2 companies since 2021, most recently 2026-03-26.
CIK 0001762176
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.
0 open-market purchases, against 9 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CNTA | 62,085 | $2.5M |
| MIME | 8,649 | $691K |
| Total | $3.2M |
Shares reported on the most recent Form 4, priced at the 2026-03-27 close.
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 |
|---|---|---|---|---|---|---|---|---|
| CNTA | SELL · 10b5-1 | 2026-03-26 | 2026-03-27 | $30.12 | $2.5M | +38.9% | +38.0% | N/A |
| CNTA | SELL · 10b5-1 | 2026-03-16 | 2026-03-18 | $28.19 | $4.2M | -3.7% | +38.5% | +38.9% |
| CNTA | SELL | 2026-03-13 | 2026-03-13 | $26.25 | $3.2M | +6.5% | +49.4% | +50.1% |
| CNTA | SELL · 10b5-1 | 2026-03-13 | 2026-03-16 | $26.25 | $3.2M | +5.1% | +41.6% | +42.1% |
| CNTA | SELL · 10b5-1 | 2025-02-07 | 2025-02-10 | $19.03 | $1.2M | -5.0% | -2.6% | -24.9% |
| CNTA | SELL · 10b5-1 | 2025-02-03 | 2025-02-04 | $16.86 | $218K | +5.0% | +3.1% | -16.5% |
| CNTA | SELL · 10b5-1 | 2024-12-13 | 2024-12-17 | $17.21 | $568K | -6.4% | -14.9% | -1.5% |
| CNTA | SELL · 10b5-1 | 2024-03-25 | 2024-03-26 | $11.89 | $1.2M | -0.1% | -17.0% | -17.4% |
| MIME | SELL | 2021-11-01 | 2021-11-03 | $75.06 | $1.1M | +4.7% | -6.5% | +0.9% |
| MIME | SELL | 2021-10-01 | 2021-10-04 | $64.87 | $178K | +4.6% | +24.4% | +24.4% |
| MIME | SELL | 2021-08-10 | 2021-08-12 | $58.57 | $2.0M | +6.0% | +16.8% | +31.6% |
| MIME | SELL | 2021-06-14 | 2021-06-16 | $52.13 | $3.6M | +2.9% | +2.9% | +29.4% |
| MIME | SELL | 2021-06-10 | 2021-06-14 | $52.15 | $3.7M | +4.4% | +6.6% | +33.8% |
| MIME | SELL | 2021-06-09 | 2021-06-10 | $51.99 | $449K | +4.4% | +7.8% | +31.8% |
| MIME | SELL | 2021-04-05 | 2021-04-07 | $40.75 | $92K | +2.5% | +5.7% | +34.8% |
| MIME | SELL | 2021-02-02 | 2021-02-03 | $45.15 | $386K | -1.8% | -3.8% | -2.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.