Gerald M Chizever
CIK 1134261 · View on SEC EDGAR ↗
Insider
First SEC filing: Oct. 20, 2016 · Latest: Oct. 20, 2016
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 12 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 14, 2026 | OSIS | F | 141 | $228.56 | $32,227 | 2,914 Direct | -4.62% | Disposed | -4.0% (price as of 2026-08-20) |
| July 28, 2026 | OSIS | F | 166 | $217.30 | $36,072 | 3,265 Direct | -4.84% | Disposed | 1.0% (price as of 2026-08-20) |
| July 20, 2026 | OSIS | A | 924 | $216.65 | $200,185 | 3,679 Direct | +33.54% | Acquired | 1.3% (price as of 2026-08-20) |
| July 6, 2026 | OSIS | F | 231 | $221.76 | $51,227 | 2,755 Direct | -7.74% | Disposed | -1.0% (price as of 2026-08-20) |
| July 6, 2022 | OSIS | A | 2,302 | — | — | 7,642 Direct | +43.11% | Acquired | (price as of 2026-08-20) |
| July 8, 2021 | OSIS | A | 1,910 | — | — | 5,914 Direct | +47.70% | Acquired | (price as of 2026-08-20) |
| July 8, 2020 | OSIS | A | 2,723 | — | — | 6,680 Direct | +68.81% | Acquired | (price as of 2026-08-20) |
| Aug. 23, 2019 | OSIS | A | 149 | — | — | 6,470 Direct | +2.36% | Acquired | (price as of 2026-08-20) |
| July 3, 2019 | OSIS | A | 1,510 | — | — | 6,321 Direct | +31.39% | Acquired | (price as of 2026-08-20) |
| July 6, 2018 | OSIS | A | 2,225 | — | — | 5,835 Direct | +61.63% | Acquired | (price as of 2026-08-20) |
| Aug. 22, 2017 | OSIS | A | 2,147 | — | — | 4,097 Direct | +110.10% | Acquired | (price as of 2026-08-20) |
| Oct. 26, 2016 | OSIS | A | 1,950 | — | — | 1,950 Direct | — | Acquired | (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 20, 2016 | OSIS | Common Stock | 5,000 | Indirect |