Martha Goldberg Aronson is Director at CONMED CORP (CNMD). They have made 12 open-market trades across 6 companies since 2010, most recently 2026-05-06.
CIK 0001429832
11 open-market purchases totalling $1.1M since 2010, against 1 sale. Across 8 scored buys the stock is up 3.7% at ninety days, and 2.6 points ahead of the S&P over the same stretch.
8 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 88% | 50% | 50% |
| Avg Move | +2.3% | +3.2% | +3.7% |
| Alpha | +3.6% | +3.3% | +2.6% |
| Scored | 8 | 8 | 8 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| MMSI | BUY | 2026-05-06 | 2026-05-07 | $60.44 | $121K | +3.2% | +6.9% | +41.2% |
| CNMD | BUY | 2024-05-06 | 2024-05-08 | $70.98 | $142K | +7.3% | +8.9% | -6.8% |
| CSII | BUY | 2022-02-07 | 2022-02-09 | $18.43 | $46K | +0.1% | -2.1% | -23.5% |
| CSII | BUY | 2021-05-10 | 2021-05-11 | $34.59 | $104K | +7.7% | +11.6% | +6.3% |
| CSII | BUY | 2020-08-13 | 2020-08-17 | $32.22 | $97K | +1.1% | +7.5% | +9.4% |
| CSII | BUY | 2018-11-01 | 2018-11-05 | $28.72 | $86K | -3.2% | -5.3% | +4.8% |
| ECL | SELL | 2015-06-17 | 2015-06-18 | $115.00 | $115K | -8.7% | -0.4% | -0.4% |
| HTCH | BUY | 2013-05-08 | 2013-05-09 | $3.21 | $48K | N/A | N/A | N/A |
| HTCH | BUY | 2012-08-28 | 2012-08-29 | $1.65 | $17K | N/A | N/A | N/A |
| HTCH | BUY | 2012-05-08 | 2012-05-08 | $2.24 | $45K | N/A | N/A | N/A |
| HRC | BUY | 2011-08-16 | 2011-08-18 | $30.49 | $152K | +1.2% | -1.0% | -1.0% |
| HRC | BUY | 2010-11-03 | 2010-11-03 | $39.00 | $195K | +1.2% | -1.0% | -1.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| HTCH |
| 50,000 |
| — |
| Total | $15.1M |
Shares reported on the most recent Form 4, priced at the 2026-05-07 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.