Gerald M Chizever
Insider
First SEC filing: Oct. 20, 2016 · Latest: Oct. 20, 2016
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 20, 2026 | OSIS | F | 88 | $220.92 | $19,441 | 2,696 Direct | -3.16% | Disposed | -11.4% (price as of 2026-10-05) |
| Aug. 14, 2026 | OSIS | F | 141 | $228.56 | $32,227 | 2,914 Direct | -4.62% | Disposed | -14.4% (price as of 2026-10-05) |
| July 28, 2026 | OSIS | F | 166 | $217.30 | $36,072 | 3,265 Direct | -4.84% | Disposed | -9.9% (price as of 2026-10-05) |
| July 20, 2026 | OSIS | A | 924 | $216.65 | $200,185 | 3,679 Direct | +33.54% | Acquired | -9.6% (price as of 2026-10-05) |
| July 6, 2026 | OSIS | F | 231 | $221.76 | $51,227 | 2,755 Direct | -7.74% | Disposed | -11.7% (price as of 2026-10-05) |
| Aug. 20, 2025 | OSIS | A | 873 | $223.39 | $195,019 | 5,873 Indirect | +17.46% | Acquired | -12.4% (price as of 2026-10-05) |
| Jan. 27, 2025 | OSIS | S | 2,701 | $195.83 | $528,937 | 5,000 Indirect | -35.07% | Disposed | 0.0% (price as of 2026-10-05) |
| Nov. 7, 2024 | OSIS | S | 2,000 | $148.16 | $296,320 | 7,701 Indirect | -20.62% | Disposed | 32.1% (price as of 2026-10-05) |
| Sept. 11, 2024 | OSIS | S | 3,000 | $138.41 | $415,230 | 3,462 Direct | -46.43% | Disposed | 41.4% (price as of 2026-10-05) |
| Aug. 14, 2024 | OSIS | A | 1,403 | $139.02 | $195,045 | 6,462 Direct | +27.73% | Acquired | 40.8% (price as of 2026-10-05) |
| May 8, 2024 | OSIS | S | 3,000 | $134.11 | $402,330 | 10,515 Indirect | -22.20% | Disposed | 46.0% (price as of 2026-10-05) |
| July 28, 2023 | OSIS | A | 1,658 | $117.63 | $195,031 | 5,059 Direct | +48.75% | Acquired | 66.4% (price as of 2026-10-05) |
| June 1, 2023 | OSIS | S | 1,500 | $118.59 | $177,885 | 9,274 Indirect | -13.92% | Disposed | 65.1% (price as of 2026-10-05) |
| May 17, 2023 | OSIS | S | 1,500 | $117.04 | $175,560 | 6,142 Direct | -19.63% | Disposed | 67.3% (price as of 2026-10-05) |
| July 6, 2022 | OSIS | A | 2,302 | · | · | 7,642 Direct | +43.11% | Acquired | (price as of 2026-10-05) |
| July 8, 2021 | OSIS | A | 1,910 | · | · | 5,914 Direct | +47.70% | Acquired | (price as of 2026-10-05) |
| July 8, 2020 | OSIS | A | 2,723 | · | · | 6,680 Direct | +68.81% | Acquired | (price as of 2026-10-05) |
| Aug. 23, 2019 | OSIS | A | 149 | · | · | 6,470 Direct | +2.36% | Acquired | (price as of 2026-10-05) |
| July 3, 2019 | OSIS | A | 1,510 | · | · | 6,321 Direct | +31.39% | Acquired | (price as of 2026-10-05) |
| July 6, 2018 | OSIS | A | 2,225 | · | · | 5,835 Direct | +61.63% | Acquired | (price as of 2026-10-05) |
| Aug. 22, 2017 | OSIS | A | 2,147 | · | · | 4,097 Direct | +110.10% | Acquired | (price as of 2026-10-05) |
| Oct. 26, 2016 | OSIS | A | 1,950 | · | · | 1,950 Direct | · | Acquired | (price as of 2026-10-05) |
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 |