Christopher B. Paisley is Director at Fortinet, Inc. (FTNT). They have made 79 open-market trades across 7 companies since 2008, most recently 2026-08-31.
CIK 0001189229
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.
8 open-market purchases totalling $920K since 2008, against 71 sales. Across 8 scored buys the stock is up 1.7% at ninety days, and 1.3 points ahead of the S&P over the same stretch.
8 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 25% | 63% | 75% |
| Avg Move | -6.8% | +0.2% | +1.7% |
| Alpha | -1.7% | +0.1% | +1.3% |
| Scored | 8 | 8 | 8 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FSLY | SELL · 10b5-1 | 2026-08-31 | 2026-09-02 | $23.00 | $69K | +22.4% | +30.0% | — |
| EQIX | SELL · 10b5-1 | 2026-08-18 | 2026-08-18 | $1103.58 | $138K | -4.5% | -6.1% | — |
| EQIX | SELL | 2026-08-03 | 2026-08-03 | $1019.28 | $4.1M | +5.8% | +0.4% | — |
| AMBA | SELL · 10b5-1 | 2026-06-26 | 2026-06-30 | $62.01 | $16K | -13.3% | -10.6% | -17.3% |
| FSLY | SELL · 10b5-1 | 2026-05-29 | 2026-06-02 | $16.96 | $17K | -8.1% | -10.4% | +12.9% |
| EQIX | SELL · 10b5-1 | 2026-05-18 | 2026-05-19 | $1060.29 | $133K | -0.0% | +3.9% | +4.5% |
| EQIX | SELL · 10b5-1 | 2026-02-18 | 2026-02-19 | $948.30 | $95K | +6.2% | +5.6% | +16.3% |
| AMBA | SELL | 2025-12-26 | 2025-12-29 | $72.18 | $36K | -3.0% | -6.5% | -31.8% |
| EQIX | SELL · 10b5-1 | 2025-11-18 | 2025-11-18 | $777.58 | $39K | -5.2% | -3.8% | +23.1% |
| EQIX | SELL · 10b5-1 | 2025-08-18 | 2025-08-19 | $781.50 | $117K | +1.6% | +1.5% | +0.4% |
| AMBA | SELL · 10b5-1 | 2025-06-25 | 2025-06-27 | $62.58 | $63K | +0.3% | +4.1% | +24.1% |
| EQIX | SELL · 10b5-1 | 2025-05-16 | 2025-05-19 | $869.41 | $87K | +2.4% | +2.1% | -11.4% |
| AMBA | SELL · 10b5-1 | 2025-03-25 | 2025-03-26 | $55.50 | $28K | -21.7% | -10.6% | +16.8% |
| EQIX | SELL · 10b5-1 | 2025-02-18 | 2025-02-19 | $912.21 | $228K | -3.0% | -11.1% | -6.7% |
| AMBA | SELL | 2024-12-26 | 2024-12-26 | $73.80 | $111K | +1.7% | -2.0% | -28.0% |
| EQIX | SELL · 10b5-1 | 2024-11-18 | 2024-11-18 | $891.00 | $89K | +7.7% | +1.7% | +2.3% |
| AMBA | SELL · 10b5-1 | 2024-09-25 | 2024-09-26 | $53.71 | $27K | -1.1% | +3.3% | +30.7% |
| EQIX | SELL · 10b5-1 | 2024-08-16 | 2024-08-16 | $825.80 | $83K | -0.9% | +6.8% | +9.4% |
| EQIX | SELL · 10b5-1 | 2024-05-16 | 2024-05-17 | $812.98 | $81K | -4.4% | -4.1% | +4.4% |
| FSLY | SELL · 10b5-1 | 2024-02-20 | 2024-02-22 | $15.60 | $16K | -7.5% | -13.0% | -40.0% |
| EQIX | SELL · 10b5-1 | 2024-02-16 | 2024-02-20 | $863.49 | $86K | +5.8% | -4.7% | -6.6% |
| AMBA | SELL · 10b5-1 | 2023-12-26 | 2023-12-27 | $63.14 | $32K | -7.4% | -12.4% | -19.5% |
| FSLY | SELL · 10b5-1 | 2023-11-20 | 2023-11-22 | $17.72 | $18K | -1.8% | +4.6% | -16.1% |
| EQIX | SELL | 2023-11-17 | 2023-11-20 | $786.56 | $118K | +5.0% | +1.2% | +8.9% |
| FSLY | SELL · 10b5-1 | 2023-08-22 | 2023-08-24 | $19.20 | $19K | +17.2% | -9.9% | -12.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| YUME |
| 92,469 |
| $342K |
| BBNK | 15,763 | — |
| VLTR | 25,800 | — |
| Total | $38.4M |
Shares reported on the most recent Form 4, priced at the 2026-09-02 close. 2 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.