Staar Surgical Co
A maker of implantable lenses for the eye, STAAR Surgical is best known for its EVO ICL — a tiny, foldable lens surgically placed behind the iris to correct nearsightedness as an alternative to glasses, contacts, or LASIK. Founded in 1982 by Tom Waggoner and Dr. Thomas Mazzocco, the company pioneered the first foldable intraocular lens for cataract surgery. Its lenses are made from Collamer, a proprietary material whose name blends "collagen" and "polymer," helping the eye accept the implant as its own.
Bought 7.53M
Granted 299.0K · Sold 210.0K
Granted 70.0K · Sold 95.2K
Granted 99.0K
Granted 77.1K
Granted 89.6K
Granted 59.0K · Sold 5.1K
Granted 10.6K
Granted 18.1K · Sold 15.0K
Granted 28.4K · Sold 36.6K
Granted 63.8K
Granted 20.1K
Granted 28.9K
Granted 30.9K · Sold 23.4K
Granted 27.8K
Granted 11.6K · Bought 3.8K
Granted 10.7K
Granted 15.7K
Granted 7.5K
Granted 8.2K · Bought 1.3K
Granted 7.3K · Bought 850
Granted 2.6K · Bought 2.5K
Granted 2.1K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Bradsher Neal C +2 co-filersDirector, 10% owner, 10% owner · 166 transactions | — | 72.38M | — | 7.53M | — |
| Mason Caren LPresident & CEO, Director · 17 transactions | +140.5% | 152.4Kas of Jun 2022 | 299.0K | — | 210.0K |
| Blickensdoerfer Hans-MartinSr. VP, Comm. Ops, China · 13 transactions | -59.1% | 83.1Kas of Mar 2022 | 70.0K | — | 95.2K |
| Foust WarrenInterim Co-CEO and Pres. & COO · 15 transactions | — | 81.5K | 99.0K | — | — |
| Jiang WeiDirector · 6 transactions | — | 77.1K | 77.1K | — | — |
| Frinzi Thomas GPresident & CEO, Director · 6 transactions | +2311.7% | 70.5Kas of Jan 2025 | 89.6K | — | — |
| Williams Patrick F.Chief Financial Officer · 16 transactions | +83% | 56.2Kas of Mar 2025 | 59.0K | — | 5.1K |
| Studholme RobertSenior VP, Operations · 2 transactions | — | 53.3Kas of Mar 2023 | 10.6K | — | — |
| Gesten Samuel JChief Legal Officer · 7 transactions | -18.8% | 43.7Kas of Mar 2023 | 18.1K | — | 15.0K |
| Francese James ESr. VP, Comm. Ops., NA, APAC · 12 transactions | -18.9% | 42.7Kas of Mar 2023 | 28.4K | — | 36.6K |
| Michna MagdaChief Development Officer · 19 transactions | — | 42.2K | 63.8K | — | — |
| Barnes Scott DChief Medical Officer · 6 transactions | +16.5% | 41.5Kas of Mar 2023 | 20.1K | — | — |
| Farrell Stephen CPresident & CEO, Director · 8 transactions | +465.9% | 35.2Kas of Mar 2025 | 28.9K | — | — |
| Holliday KeithChief Technology Officer · 13 transactions | +23.9% | 28.2Kas of Mar 2023 | 30.9K | — | 23.4K |
| Sisitsky NathanielChief Legal Officer · 4 transactions | — | 22.8K | 27.8K | — | — |
| Weisner Aimee SDirector · 6 transactions | — | 15.4Kas of Jun 2024 | 11.6K | 3.8K | — |
| Silverman LouDirector · 1 transaction | +281.6% | 11.2K | 10.7K | — | — |
| Andrews Deborah JInterim Co-CEO and CFO · 4 transactions | -66.5% | 10.5K | 15.7K | — | — |
| Kliman Gilbert HDirector · 5 transactions | +250.3% | 10.5Kas of Dec 2023 | 7.5K | — | — |
| Butcher Arthur CDirector · 4 transactions | — | 9.5K | 8.2K | 1.3K | — |
| Zhou Lilian YanshengDirector · 4 transactions | — | 8.1K | 7.3K | 850 | — |
| Lin Elizabeth YeuDirector · 3 transactions | — | 5.1Kas of Jun 2024 | 2.6K | 2.5K | — |
| Yu K PeonyDirector · 2 transactions | +285.9% | 2.8Kas of Jun 2023 | 2.1K | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 5 years: +7.15M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.