Mary Lake Ph D. Polan is Director at QuidelOrtho Corp (QDEL). They have made 14 open-market trades across 1 company since 2010, most recently 2026-06-06.
CIK 0001187716
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.
2 open-market purchases totalling $53K since 2012, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| QDEL | 20,218 | $290K |
| CEMI | 7,772 | $4K |
| WYE | 13,460 | — |
| Total | $294K |
Shares reported on the most recent Form 4, priced at the 2026-06-09 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.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| QDEL | BUY | 2025-11-21 | 2025-11-24 | $22.43 | $22K | +2.2% | +6.4% | -22.0% |
| QDEL | SELL | 2022-03-18 | 2022-03-22 | $113.59 | $346K | +0.9% | -2.5% | -11.5% |
| QDEL | SELL | 2021-09-03 | 2021-09-08 | $141.70 | $1.7M | +9.8% | -0.8% | +2.9% |
| QDEL | SELL | 2020-12-01 | 2020-12-03 | $192.25 | $2.1M | +1.2% | -4.1% | -23.6% |
| QDEL | SELL | 2020-11-06 | 2020-11-06 | $284.17 | $853K | -7.5% | -4.2% | +13.0% |
| QDEL | SELL | 2020-10-12 | 2020-10-14 | $275.83 | $6.5M | -0.9% | -25.2% | -23.5% |
| QDEL | SELL | 2020-05-11 | 2020-05-12 | $204.27 | $1.4M | -7.2% | -15.3% | +22.8% |
| QDEL | SELL | 2019-02-20 | 2019-02-22 | $70.17 | $2.0M | -4.8% | -6.5% | -20.6% |
| QDEL | SELL | 2019-02-15 | 2019-02-19 | $65.12 | $1.8M | +1.3% | +1.2% | -16.9% |
| QDEL | SELL | 2018-08-28 | 2018-08-30 | $70.80 | $334K | -4.3% | -16.5% | -18.9% |
| QDEL | SELL | 2018-08-23 | 2018-08-27 | $70.03 | $2.2M | +0.6% | -11.7% | -17.5% |
| QDEL | SELL | 2014-11-14 | 2014-11-18 | $28.24 | $56K | -12.7% | +1.6% | +1.6% |
| QDEL | BUY | 2012-03-05 | 2012-03-06 | $15.12 | $30K | -12.7% | +1.6% | +1.6% |
| QDEL | SELL | 2010-03-04 | 2010-03-08 | $13.66 | $251K | -12.7% | +1.6% | +1.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.