John J. Mistretta is VP at BLACKBAUD INC (BLKB). They have made 17 open-market trades across 1 company since 2009, most recently 2026-08-31.
CIK 0001280058
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 $914 since 2009, against 16 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BLKB | 474,629 | $24.5M |
Shares reported on the most recent Form 4, priced at the 2026-09-04 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 |
|---|---|---|---|---|---|---|---|---|
| BLKB | SELL | 2026-08-31 | 2026-09-02 | $48.27 | $101K | -6.5% | -13.3% | — |
| BLKB | SELL | 2017-05-25 | 2017-05-30 | $83.00 | $333K | +2.4% | +2.4% | +0.6% |
| BLKB | SELL | 2017-05-22 | 2017-05-24 | $82.00 | $303K | +5.8% | +8.3% | +2.7% |
| BLKB | SELL | 2017-04-28 | 2017-05-02 | $80.00 | $200K | +1.2% | +7.6% | +17.1% |
| BLKB | SELL | 2017-04-05 | 2017-04-07 | $78.00 | $195K | +2.8% | +3.5% | +11.1% |
| BLKB | SELL | 2017-03-17 | 2017-03-21 | $77.00 | $193K | +2.4% | +5.3% | +16.8% |
| BLKB | SELL | 2017-03-15 | 2017-03-16 | $76.00 | $190K | -0.5% | +0.6% | +12.0% |
| BLKB | SELL | 2017-02-09 | 2017-02-13 | $70.67 | $971K | +2.9% | +7.2% | +12.6% |
| BLKB | SELL | 2016-07-12 | 2016-07-14 | $70.00 | $158K | -0.5% | -3.3% | -10.2% |
| BLKB | SELL | 2016-07-01 | 2016-07-05 | $67.88 | $168K | +5.1% | +0.3% | -1.6% |
| BLKB | SELL | 2016-07-01 | 2016-07-05 | $67.88 | $168K | +5.1% | +0.3% | -1.6% |
| BLKB | SELL | 2016-05-31 | 2016-06-02 | $62.10 | $487K | +3.6% | +4.9% | +5.0% |
| BLKB | SELL | 2016-05-24 | 2016-05-26 | $61.59 | $468K | +7.1% | +3.5% | +10.5% |
| BLKB | SELL | 2015-02-27 | 2015-03-03 | $45.48 | $103K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2014-12-23 | 2014-12-23 | $44.95 | $116K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2013-09-24 | 2013-09-26 | $39.49 | $138K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2013-09-10 | 2013-09-12 | $38.03 | $247K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL | 2013-08-29 | 2013-09-03 | $36.42 | $364K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2013-05-01 | 2013-05-03 | $30.90 | $65K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2013-03-13 | 2013-03-15 | $30.29 | $185K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL | 2013-02-25 | 2013-02-27 | $28.25 | $61K | -11.6% | -1.7% | -1.7% |
| BLKB | SELL · 10b5-1 | 2011-10-27 | 2011-10-31 | $29.00 | $37K | -11.6% | -1.7% | -1.7% |
| BLKB | BUY | 2009-03-16 | 2009-04-17 | $10.27 | $914 | -11.6% | -1.7% | -1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.