Glenn Grindstaff
Insider
First SEC filing: Feb. 25, 2020 · Latest: Feb. 25, 2020
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. 24, 2026 | OSIS | A | 1,969 | $206.73 | $407,051 | 11,901 Direct | +19.82% | Acquired | -4.0% (price as of 2026-10-06) |
| Aug. 24, 2026 | OSIS | F | 1,708 | $206.73 | $353,095 | 10,193 Direct | -14.35% | Disposed | -4.0% (price as of 2026-10-06) |
| July 31, 2026 | OSIS | A | 610 | $221.39 | $135,048 | 9,932 Direct | +6.54% | Acquired | -10.3% (price as of 2026-10-06) |
| June 30, 2026 | OSIS | A | 17 | $185.90 | $3,160 | 9,322 Direct | +0.18% | Acquired | 6.8% (price as of 2026-10-06) |
| Aug. 26, 2025 | OSIS | A | 2,595 | $225.19 | $584,368 | 11,518 Direct | +29.08% | Acquired | -11.8% (price as of 2026-10-06) |
| Aug. 26, 2025 | OSIS | F | 2,213 | $225.19 | $498,345 | 9,305 Direct | -19.21% | Disposed | -11.8% (price as of 2026-10-06) |
| Aug. 1, 2025 | OSIS | A | 569 | $219.57 | $124,935 | 8,923 Direct | +6.81% | Acquired | -9.6% (price as of 2026-10-06) |
| May 8, 2025 | OSIS | S | 688 | $224.89 | $154,724 | 8,354 Direct | -7.61% | Disposed | -11.7% (price as of 2026-10-06) |
| Aug. 30, 2024 | OSIS | F | 463 | $148.83 | $68,908 | 7,402 Direct | -5.89% | Disposed | 33.4% (price as of 2026-10-06) |
| Aug. 30, 2024 | OSIS | A | 2,509 | $148.83 | $373,414 | 9,911 Direct | +33.90% | Acquired | 33.4% (price as of 2026-10-06) |
| Aug. 30, 2024 | OSIS | F | 869 | $148.83 | $129,333 | 9,042 Direct | -8.77% | Disposed | 33.4% (price as of 2026-10-06) |
| Aug. 14, 2024 | OSIS | A | 1,439 | $139.02 | $200,050 | 7,865 Direct | +22.39% | Acquired | 42.8% (price as of 2026-10-06) |
| June 24, 2024 | OSIS | F | 61 | $136.19 | $8,308 | 6,426 Direct | -0.94% | Disposed | 45.8% (price as of 2026-10-06) |
| Sept. 13, 2023 | OSIS | S | 1,373 | $120.61 | $165,598 | 6,487 Direct | -17.47% | Disposed | 64.6% (price as of 2026-10-06) |
| Sept. 5, 2023 | OSIS | F | 632 | $133.85 | $84,593 | 6,275 Direct | -9.15% | Disposed | 48.3% (price as of 2026-10-06) |
| Sept. 5, 2023 | OSIS | A | 2,425 | · | · | 8,700 Direct | +38.65% | Acquired | (price as of 2026-10-06) |
| Sept. 5, 2023 | OSIS | F | 840 | $133.85 | $112,434 | 7,860 Direct | -9.66% | Disposed | 48.3% (price as of 2026-10-06) |
| July 28, 2023 | OSIS | A | 1,275 | $117.63 | $149,978 | 6,907 Direct | +22.64% | Acquired | 68.8% (price as of 2026-10-06) |
| June 26, 2023 | OSIS | F | 61 | $116.94 | $7,133 | 5,632 Direct | -1.07% | Disposed | 69.8% (price as of 2026-10-06) |
| Nov. 7, 2022 | OSIS | S | 802 | $84.77 | $67,986 | 5,693 Direct | -12.35% | Disposed | 134.2% (price as of 2026-10-06) |
| Aug. 24, 2022 | OSIS | A | 1,518 | · | · | 7,039 Direct | +27.50% | Acquired | (price as of 2026-10-06) |
| Aug. 24, 2022 | OSIS | F | 544 | $89.14 | $48,492 | 6,495 Direct | -7.73% | Disposed | 122.8% (price as of 2026-10-06) |
| July 6, 2022 | OSIS | A | 1,611 | · | · | 5,521 Direct | +41.20% | Acquired | (price as of 2026-10-06) |
| June 30, 2022 | OSIS | A | 19 | $72.62 | $1,380 | 3,910 Direct | +0.49% | Acquired | 173.4% (price as of 2026-10-06) |
| June 24, 2022 | OSIS | F | 63 | $84.39 | $5,317 | 3,891 Direct | -1.59% | Disposed | 135.3% (price as of 2026-10-06) |
| May 27, 2022 | OSIS | S | 47 | $83.18 | $3,909 | 3,954 Direct | -1.17% | Disposed | 138.7% (price as of 2026-10-06) |
| Dec. 31, 2021 | OSIS | A | 30 | $77.84 | $2,335 | 4,001 Direct | +0.76% | Acquired | 155.1% (price as of 2026-10-06) |
| Sept. 8, 2021 | OSIS | S | 355 | $97.40 | $34,577 | 3,971 Direct | -8.21% | Disposed | 103.9% (price as of 2026-10-06) |
| Aug. 24, 2021 | OSIS | F | 307 | $98.33 | $30,187 | 4,326 Direct | -6.63% | Disposed | 101.9% (price as of 2026-10-06) |
| Aug. 24, 2021 | OSIS | A | 898 | · | · | 4,633 Direct | +24.04% | Acquired | (price as of 2026-10-06) |
| July 8, 2021 | OSIS | A | 1,307 | · | · | 3,735 Direct | +53.83% | Acquired | (price as of 2026-10-06) |
| June 30, 2021 | OSIS | A | 17 | $77.84 | $1,323 | 2,428 Direct | +0.71% | Acquired | 155.1% (price as of 2026-10-06) |
| June 24, 2021 | OSIS | F | 71 | $97.72 | $6,938 | 2,411 Direct | -2.86% | Disposed | 103.2% (price as of 2026-10-06) |
| July 8, 2020 | OSIS | A | 1,792 | · | · | 2,482 Direct | +259.71% | Acquired | (price as of 2026-10-06) |
| June 24, 2020 | OSIS | A | 690 | · | · | 690 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|
| Feb. 25, 2020 | OSIS | No securities are beneficially owned. | 0 | Direct |