SEC CIK 1134261

CHIZEVER GERALD M

Reported ownership across 1 company, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
OSISview stock →2,6962026-08-20

Position History — OSIS

Reported shares owned immediately after each Form 4 transaction, over time.

03,5057,01010,5152016-102018-072020-072023-052024-052024-112026-072026-082026-08

Recent Filings — OSIS

DateActivitySharesPriceOwned After
2026-08-20Tax withholding88$220.922,696
2026-08-14Tax withholding141$228.562,914
2026-07-28Tax withholding166$217.303,265
2026-07-20Grant / award924$216.653,679
2026-07-06Tax withholding231$221.762,755
2025-08-20Grant / award873$223.395,873
2025-01-27Open-market sale2,701$195.835,000
2024-11-07Open-market sale2,000$148.167,701
2024-09-11Open-market sale3,000$138.413,462
2024-08-14Grant / award1,403$139.026,462
2024-05-08Open-market sale3,000$134.1110,515
2023-07-28Grant / award1,658$117.635,059
2023-06-01Open-market sale1,500$118.599,274
2023-05-17Open-market sale1,500$117.046,142
2022-07-06Grant / award2,302$0.007,642
2021-07-08Grant / award1,910$0.005,914
2020-07-08Grant / award2,723$0.006,680
2019-08-23Grant / award149$0.006,470
2019-07-03Grant / award1,510$0.006,321
2018-07-06Grant / award2,225$0.005,835
2017-08-22Grant / award2,147$0.004,097
2016-10-26Grant / award1,950$0.001,950
2016-10-10———5,000

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.