Karl E. Johnsen is President & CFO +1 at ASPEN TECHNOLOGY INC /DE/ (AZPN). They have made 21 open-market trades across 1 company since 2016, most recently 2026-06-17.
CIK 0001560263
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 21 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AZPN | SELL | 2021-01-25 | 2021-01-27 | $141.88 | $366K | +16.7% | +11.9% | +13.4% |
| AZPN | SELL | 2020-10-26 | 2020-10-28 | $128.01 | $330K | +3.5% | +18.4% | +25.6% |
| AZPN | SELL | 2020-08-24 | 2020-08-26 | $124.98 | $501K | -3.5% | -0.3% | +3.8% |
| AZPN | SELL | 2020-05-20 | 2020-05-21 | $95.07 | $5.6M | +18.8% | +8.5% | +29.4% |
| AZPN | SELL | 2020-04-27 | 2020-04-29 | $94.66 | $391K | -1.9% | +3.8% | -5.7% |
| AZPN | SELL | 2020-01-27 | 2020-01-29 | $136.45 | $443K | +3.9% | -14.9% | -22.8% |
| AZPN | SELL | 2019-10-28 | 2019-10-30 | $116.82 | $540K | +2.5% | +10.0% | +21.8% |
| AZPN | SELL | 2019-08-12 | 2019-08-14 | $136.80 | $813K | +2.5% | -7.4% | -10.0% |
| AZPN | SELL | 2019-04-29 | 2019-05-01 | $121.38 | $737K | -7.0% | -5.4% | +11.6% |
| AZPN | SELL | 2019-01-31 | 2019-02-04 | $96.50 | $230K | +1.1% | -0.4% | +22.5% |
| AZPN | SELL | 2018-10-30 | 2018-11-01 | $80.69 | $385K | -5.8% | +2.2% | +11.5% |
| AZPN | SELL | 2018-08-13 | 2018-08-15 | $108.07 | $2.0M | +4.3% | +9.8% | -25.0% |
| AZPN | SELL | 2018-05-04 | 2018-05-08 | $90.39 | $235K | +4.1% | +5.7% | +12.9% |
| AZPN | SELL | 2018-04-30 | 2018-05-02 | $89.17 | $1.3M | +6.3% | +7.8% | +9.6% |
| AZPN | SELL | 2018-02-12 | 2018-02-14 | $72.88 | $1.3M | +2.7% | +6.2% | +21.3% |
| AZPN | SELL | 2018-02-07 | 2018-02-09 | $75.00 | $173K | +7.9% | +13.5% | +30.3% |
| AZPN | SELL | 2017-10-31 | 2017-11-02 | $64.41 | $337K | +1.2% | +2.3% | +18.9% |
| AZPN | SELL | 2017-08-15 | 2017-08-17 | $59.14 | $233K | +5.6% | +10.0% | +13.8% |
| AZPN | SELL | 2017-06-13 | 2017-06-15 | $57.01 | $340K | +0.5% | +3.4% | +17.8% |
| AZPN | SELL | 2017-01-31 | 2017-02-01 | $53.00 | $200K | +4.8% | +10.7% | +15.7% |
| AZPN | SELL | 2016-11-01 | 2016-11-03 | $48.68 | $102K | +5.6% | +8.6% | +10.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.