Stuart Essig is Director at INTEGRA LIFESCIENCES HOLDINGS CORP (IART). They have made 45 open-market trades across 5 companies since 2006, most recently 2026-05-20.
CIK 0001187574
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.
7 open-market purchases totalling $6.3M since 2006, against 38 sales. Across 7 scored buys the stock is up 1.6% at ninety days, and 0.9 points ahead of the S&P over the same stretch.
7 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 43% | 43% | 29% |
| Avg Move | -2.6% | +2.5% | +1.6% |
| Alpha | -0.4% | +2.7% | +0.9% |
| Scored | 7 | 7 | 7 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IART | BUY | 2024-05-23 | 2024-05-24 | $28.49 | $3.0M | +7.5% | +3.1% | -29.6% |
| IART | SELL | 2021-03-18 | 2021-03-22 | $68.14 | $29.2M | +2.3% | +11.8% | +5.2% |
| IART | SELL | 2020-05-26 | 2020-05-28 | $52.14 | $15.4M | +0.4% | -10.2% | -9.2% |
| IART | SELL | 2020-05-12 | 2020-05-14 | $52.07 | $217K | +10.9% | +4.1% | +8.2% |
| SPNE | SELL | 2019-02-14 | 2019-02-15 | $16.08 | $401K | -6.3% | -11.7% | -11.7% |
| SPNE | SELL | 2019-02-11 | 2019-02-13 | $16.10 | $485K | +3.5% | -7.4% | -7.6% |
| SPNE | SELL | 2018-08-02 | 2018-08-03 | $14.00 | $609K | -1.5% | +9.2% | +25.2% |
| IART | SELL | 2018-07-23 | 2018-07-25 | $63.55 | $7.6M | +2.8% | -4.7% | +0.2% |
| IART | SELL | 2018-07-17 | 2018-07-19 | $63.50 | $4.0M | -1.6% | -7.9% | +0.5% |
| IART | SELL | 2018-07-09 | 2018-07-11 | $63.96 | $12.8M | +0.3% | -0.6% | -3.5% |
| DYNT | BUY | 2018-01-03 | 2018-01-04 | $2.77 | $139K | -3.2% | -14.3% | -6.5% |
| DYNT | BUY | 2017-11-30 | 2017-12-01 | $2.50 | $995K | +1.9% | +13.5% | +1.9% |
| IART | SELL | 2017-05-25 | 2017-05-26 | $49.90 | $6.7M | +6.1% | +9.8% | +1.7% |
| IART | SELL | 2017-05-23 | 2017-05-24 | $48.01 | $4.6M | +4.8% | +11.1% | +3.4% |
| IART | SELL | 2017-05-22 | 2017-05-24 | $48.01 | $13.4M | +4.8% | +11.1% | +3.4% |
| IART | SELL | 2017-05-22 | 2017-05-24 | $48.01 | $2.1M | +4.8% | +11.1% | +3.4% |
| SPNE | BUY | 2017-03-13 | 2017-03-14 | $6.67 | $334K | +8.7% | +18.5% | +48.5% |
| IART | SELL | 2016-04-27 | 2016-04-28 | $70.15 | $14.6M | +3.9% | +6.4% | +12.5% |
| IART | SELL | 2016-04-06 | 2016-04-07 | $66.19 | $1.4M | -0.3% | +10.0% | +19.1% |
| IART | SELL | 2016-04-05 | 2016-04-06 | $66.08 | $2.7M | +1.8% | +9.1% | +20.2% |
| IART | SELL | 2016-04-04 | 2016-04-06 | $66.48 | $8.3M | +1.8% | +9.1% | +20.2% |
| IART | SELL | 2016-04-04 | 2016-04-06 | $67.26 | $2.8M | +1.8% | +9.1% | +20.2% |
| SPNE | BUY | 2015-08-18 | 2015-08-20 | $15.33 | $998K | -17.6% | -1.9% | -1.9% |
| IART | SELL | 2015-05-07 | 2015-05-08 | $64.32 | $4.8M | -6.5% | -1.3% | -1.3% |
| IART | SELL | 2015-05-05 | 2015-05-07 | $64.83 | $8.1M | -6.5% | -1.3% | -1.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| OMI |
| 27,585 |
| $77K |
| Total | $28.1M |
Shares reported on the most recent Form 4, priced at the 2026-05-21 close.