Jack L. Acosta is Director at Five9, Inc. (FIVN). They have made 12 open-market trades across 2 companies since 2007, most recently 2026-06-02.
CIK 0001225954
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.
4 open-market purchases totalling $1.1M since 2007, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FIVN | SELL | 2023-01-11 | 2023-01-12 | $70.70 | $354K | +10.6% | +11.6% | -0.3% |
| FIVN | SELL | 2022-12-12 | 2022-12-13 | $68.80 | $660K | -7.1% | +0.5% | -14.0% |
| FIVN | SELL | 2022-11-11 | 2022-11-14 | $63.16 | $316K | -6.1% | +13.4% | +21.0% |
| FIVN | SELL | 2020-08-14 | 2020-08-18 | $120.74 | $3.5M | -0.1% | -4.5% | +12.0% |
| FIVN | SELL | 2020-08-10 | 2020-08-12 | $118.48 | $2.1M | +6.4% | +0.8% | +20.0% |
| FIVN | SELL | 2019-12-18 | 2019-12-20 | $65.92 | $4.9M | +0.5% | +9.7% | -5.8% |
| FIVN | SELL | 2019-03-01 | 2019-03-05 | $54.16 | $5.4M | +5.2% | -3.8% | -9.4% |
| FIVN | SELL | 2018-02-20 | 2018-02-22 | $26.96 | $8.1M | +1.1% | +2.2% | +5.7% |
| FIVN | BUY | 2015-03-12 | 2015-03-16 | $4.50 | $900K | -9.2% | -4.0% | -4.0% |
| SUMT | BUY | 2007-11-07 | 2007-11-08 | $5.00 | $118K | N/A | N/A | N/A |
| SUMT | BUY | 2007-11-06 | 2007-11-07 | $5.00 | $44K | N/A | N/A | N/A |
| SUMT | BUY | 2007-11-05 | 2007-11-06 | $5.00 | $89K | 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.