Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 14 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.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Aug. 20, 2026 OSIS F 78 $220.92 $17,232 10,781 Direct -0.72% Disposed -10.4% (price as of 2026-10-05)
Aug. 14, 2026 OSIS F 126 $228.56 $28,799 10,859 Direct -1.15% Disposed -13.4% (price as of 2026-10-05)
July 28, 2026 OSIS F 149 $217.30 $32,378 10,985 Direct -1.34% Disposed -8.9% (price as of 2026-10-05)
July 20, 2026 OSIS A 924 $216.65 $200,185 11,134 Direct +9.05% Acquired -8.7% (price as of 2026-10-05)
July 6, 2026 OSIS F 202 $221.76 $44,796 10,210 Direct -1.94% Disposed -10.8% (price as of 2026-10-05)
Aug. 20, 2025 OSIS A 783 $223.39 $174,914 10,412 Direct +8.13% Acquired -11.4% (price as of 2026-10-05)
Aug. 14, 2025 OSIS F 126 $236.05 $29,742 9,629 Direct -1.29% Disposed -16.2% (price as of 2026-10-05)
July 28, 2025 OSIS F 149 $226.08 $33,686 9,755 Direct -1.50% Disposed -12.5% (price as of 2026-10-05)
Aug. 14, 2024 OSIS A 1,259 $139.02 $175,026 9,904 Direct +14.56% Acquired 42.3% (price as of 2026-10-05)
July 28, 2023 OSIS A 1,488 $117.63 $175,033 8,645 Direct +20.79% Acquired 68.2% (price as of 2026-10-05)
July 6, 2022 OSIS A 2,014 · · 7,157 Direct +39.16% Acquired (price as of 2026-10-05)
July 8, 2021 OSIS A 1,759 · · 5,143 Direct +51.98% Acquired (price as of 2026-10-05)
July 8, 2020 OSIS A 2,508 · · 3,384 Direct +286.30% Acquired (price as of 2026-10-05)
Dec. 12, 2019 OSIS A 876 · · 876 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

07

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

DateTickerSecuritySharesOwnership
Dec. 16, 2019 OSIS No securities are beneficially owned. 0 Direct