Insider at

04

Insider transactions

05
0 buys (P) 1 sells (S) Net: $-116,106 + 49 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

49 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Nov. 7, 2025 OSIS S 416 $279.10 $116,106 8,540 Direct -4.64% Disposed -29.1% (price as of 2026-10-05)
Sept. 4, 2025 OSIS S 1,671 $236.76 $395,626 8,749 Direct -16.04% Disposed -16.4% (price as of 2026-10-05)
Jan. 30, 2025 OSIS S 155 $199.36 $30,901 10,077 Direct -1.51% Disposed -0.7% (price as of 2026-10-05)
Sept. 13, 2024 OSIS S 1,107 $145.04 $160,559 10,077 Direct -9.90% Disposed 36.4% (price as of 2026-10-05)
April 30, 2024 OSIS S 310 $133.02 $41,236 8,834 Direct -3.39% Disposed 48.8% (price as of 2026-10-05)
Sept. 12, 2023 OSIS S 1,307 $122.63 $160,277 8,989 Direct -12.69% Disposed 61.4% (price as of 2026-10-05)
May 3, 2023 OSIS S 565 $118.39 $66,890 7,424 Direct -7.07% Disposed 67.1% (price as of 2026-10-05)
Feb. 8, 2023 OSIS S 464 $94.01 $43,621 7,989 Direct -5.49% Disposed 110.5% (price as of 2026-10-05)
Nov. 2, 2022 OSIS S 967 $83.44 $80,686 8,309 Direct -10.42% Disposed 137.1% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 1,135 $78.59 $89,200 9,276 Direct -10.90% Disposed 151.8% (price as of 2026-10-05)
Sept. 17, 2015 OSIS S 2,956 $78.84 $233,051 12,482 Direct -19.15% Disposed 151.0% (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) 2 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Oct. 8, 2019 OSIS No securities are beneficially owned. 0 Direct
Dec. 19, 2014 OSIS Common Stock 12,687 Direct