Insider at

04

Insider transactions

05
0 buys (P) 3 sells (S) Net: $-16,369,800 + 45 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

45 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
May 4, 2026 OSIS S 10b5-1 20,000 $281.84 $5,636,800 253,044 Direct -7.32% Disposed -30.5% (price as of 2026-10-05)
Feb. 2, 2026 OSIS S 10b5-1 20,000 $250.91 $5,018,200 273,044 Direct -6.82% Disposed -22.0% (price as of 2026-10-05)
Nov. 10, 2025 OSIS S 10b5-1 20,000 $285.74 $5,714,800 292,969 Direct -6.39% Disposed -31.5% (price as of 2026-10-05)
Oct. 1, 2025 OSIS S 10b5-1 20,000 $245.80 $4,916,000 312,969 Direct -6.01% Disposed -20.4% (price as of 2026-10-05)
May 6, 2025 OSIS S 10b5-1 5,000 $220.11 $1,100,550 0 Indirect -100.00% Disposed -11.1% (price as of 2026-10-05)
May 5, 2025 OSIS S 10b5-1 20,000 $221.79 $4,435,800 339,478 Direct -5.56% Disposed -11.7% (price as of 2026-10-05)
Feb. 4, 2025 OSIS S 10b5-1 20,000 $198.26 $3,965,200 364,478 Direct -5.20% Disposed -1.3% (price as of 2026-10-05)
Feb. 3, 2025 OSIS S 10b5-1 20,000 $193.55 $3,871,000 384,478 Direct -4.94% Disposed 1.1% (price as of 2026-10-05)
Dec. 12, 2024 OSIS S 20,000 $187.66 $3,753,200 404,323 Direct -4.71% Disposed 4.3% (price as of 2026-10-05)
Nov. 12, 2024 OSIS S 10b5-1 20,000 $153.87 $3,077,400 424,323 Direct -4.50% Disposed 27.2% (price as of 2026-10-05)
Nov. 11, 2024 OSIS S 10b5-1 10,000 $153.39 $1,533,900 5,000 Indirect -66.67% Disposed 27.6% (price as of 2026-10-05)
Nov. 11, 2024 OSIS S 10b5-1 5,000 $153.47 $767,350 0 Indirect -100.00% Disposed 27.5% (price as of 2026-10-05)
Sept. 16, 2024 OSIS S 10b5-1 20,000 $144.92 $2,898,400 459,033 Direct -4.18% Disposed 35.1% (price as of 2026-10-05)
May 15, 2024 OSIS S 5,403 $138.43 $747,937 463,212 Direct -1.15% Disposed 41.4% (price as of 2026-10-05)
May 15, 2024 OSIS S 5,527 $139.22 $769,469 457,685 Direct -1.19% Disposed 40.6% (price as of 2026-10-05)
May 15, 2024 OSIS S 29,070 $140.09 $4,072,416 428,615 Direct -6.35% Disposed 39.7% (price as of 2026-10-05)
Jan. 31, 2024 OSIS S 10b5-1 20,000 $129.11 $2,582,200 468,615 Direct -4.09% Disposed 51.6% (price as of 2026-10-05)
Nov. 2, 2023 OSIS S 10b5-1 1,972 $106.08 $209,190 496,183 Direct -0.40% Disposed 84.5% (price as of 2026-10-05)
Nov. 1, 2023 OSIS S 10b5-1 18,028 $104.34 $1,881,042 498,155 Direct -3.49% Disposed 87.6% (price as of 2026-10-05)
Aug. 31, 2023 OSIS S 10b5-1 871 $135.95 $118,412 476,388 Direct -0.18% Disposed 44.0% (price as of 2026-10-05)
Aug. 30, 2023 OSIS S 10b5-1 19,129 $135.49 $2,591,788 477,259 Direct -3.85% Disposed 44.5% (price as of 2026-10-05)
June 1, 2023 OSIS S 10b5-1 1,597 $118.95 $189,963 473,251 Direct -0.34% Disposed 64.6% (price as of 2026-10-05)
June 1, 2023 OSIS S 10b5-1 6,895 $119.96 $827,124 466,356 Direct -1.46% Disposed 63.2% (price as of 2026-10-05)
June 1, 2023 OSIS S 10b5-1 4,128 $120.57 $497,713 462,228 Direct -0.89% Disposed 62.4% (price as of 2026-10-05)
May 31, 2023 OSIS S 10b5-1 1,691 $117.80 $199,200 500,537 Direct -0.34% Disposed 66.2% (price as of 2026-10-05)
May 31, 2023 OSIS S 10b5-1 20,752 $118.89 $2,467,205 479,785 Direct -4.15% Disposed 64.6% (price as of 2026-10-05)
May 31, 2023 OSIS S 10b5-1 4,937 $119.57 $590,317 474,848 Direct -1.03% Disposed 63.7% (price as of 2026-10-05)
May 18, 2023 OSIS S 8,675 $116.91 $1,014,194 16,325 Indirect -34.70% Disposed 67.4% (price as of 2026-10-05)
May 18, 2023 OSIS S 1,325 $118.04 $156,403 15,000 Indirect -8.12% Disposed 65.8% (price as of 2026-10-05)
May 18, 2023 OSIS S 3,500 $116.93 $409,255 6,500 Indirect -35.00% Disposed 67.4% (price as of 2026-10-05)
May 18, 2023 OSIS S 1,500 $118.12 $177,180 5,000 Indirect -23.08% Disposed 65.7% (price as of 2026-10-05)
Jan. 31, 2023 OSIS S 20,000 $92.89 $1,857,800 510,728 Direct -3.77% Disposed 110.7% (price as of 2026-10-05)
Nov. 7, 2022 OSIS S 10,000 $85.48 $854,800 530,584 Direct -1.85% Disposed 129.0% (price as of 2026-10-05)
Nov. 4, 2022 OSIS S 10b5-1 4,871 $85.06 $414,327 540,584 Direct -0.89% Disposed 130.1% (price as of 2026-10-05)
Nov. 2, 2022 OSIS S 10b5-1 400 $85.00 $34,000 545,455 Direct -0.07% Disposed 130.3% (price as of 2026-10-05)
Nov. 1, 2022 OSIS S 10b5-1 5,000 $81.91 $409,550 545,855 Direct -0.91% Disposed 139.0% (price as of 2026-10-05)
Sept. 8, 2022 OSIS S 6,503 $76.48 $497,349 554,352 Direct -1.16% Disposed 155.9% (price as of 2026-10-05)
Sept. 8, 2022 OSIS S 3,497 $77.01 $269,304 550,855 Direct -0.63% Disposed 154.2% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 8,599 $78.84 $677,945 562,256 Direct -1.51% Disposed 148.3% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 1 $80.01 $80 562,255 Direct 0.00% Disposed 144.7% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 400 $78.86 $31,544 561,855 Direct -0.07% Disposed 148.2% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 500 $79.01 $39,505 561,355 Direct -0.09% Disposed 147.8% (price as of 2026-10-05)
Sept. 7, 2022 OSIS S 500 $79.65 $39,825 560,855 Direct -0.09% Disposed 145.8% (price as of 2026-10-05)
Aug. 30, 2022 OSIS S 10b5-1 100 $85.07 $8,507 570,855 Direct -0.02% Disposed 130.1% (price as of 2026-10-05)
Aug. 29, 2022 OSIS S 10b5-1 11,904 $85.08 $1,012,792 570,955 Direct -2.04% Disposed 130.1% (price as of 2026-10-05)
May 4, 2022 OSIS S 10b5-1 5,000 $80.66 $403,300 480,916 Direct -1.03% Disposed 142.7% (price as of 2026-10-05)
Feb. 1, 2022 OSIS S 10b5-1 5,000 $82.26 $411,300 485,916 Direct -1.02% Disposed 138.0% (price as of 2026-10-05)
Nov. 1, 2021 OSIS S 10b5-1 25,000 $92.37 $2,309,250 500,780 Direct -4.75% Disposed 111.9% (price as of 2026-10-05)
Sept. 13, 2021 OSIS S 10b5-1 25,000 $94.64 $2,366,000 525,780 Direct -4.54% Disposed 106.8% (price as of 2026-10-05)
May 3, 2021 OSIS S 10b5-1 25,000 $95.86 $2,396,500 439,094 Direct -5.39% Disposed 104.2% (price as of 2026-10-05)
March 9, 2021 OSIS S 10,000 $97.57 $975,700 464,094 Direct -2.11% Disposed 100.6% (price as of 2026-10-05)
March 2, 2021 OSIS S 25,000 $93.22 $2,330,500 474,094 Direct -5.01% Disposed 110.0% (price as of 2026-10-05)
Nov. 10, 2020 OSIS S 10b5-1 20,000 $86.10 $1,722,000 504,921 Direct -3.81% Disposed 127.4% (price as of 2026-10-05)
Sept. 23, 2020 OSIS S 14,522 $77.56 $1,126,326 524,921 Direct -2.69% Disposed 152.4% (price as of 2026-10-05)
Sept. 22, 2020 OSIS S 25,478 $78.26 $1,993,908 539,443 Direct -4.51% Disposed 150.1% (price as of 2026-10-05)

Showing latest 100 of 302 transactions

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.

Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Sept. 7, 2021 OSIS Option to Purchase Common Stock Common Stock (60,000) $33.62 Sept. 8, 2021 60,000 Disposed
Sept. 13, 2017 OSIS Option to Purchase Common Stock Common Stock (60,000) $20.02 Sept. 16, 2017 60,000 Disposed
Aug. 15, 2012 OSIS Option to Purchase Common Stock Common Stock (80,000) $12.52 Jan. 11, 2019 80,000 Disposed
Nov. 11, 2011 OSIS Option to Purchase Common Stock Common Stock (9,756) $26.81 Nov. 21, 2011 9,756 Disposed
Sept. 9, 2011 OSIS Option to Purchase Common Stock Common Stock (60,000) $0.00 Sept. 8, 2021 60,000 Acquired
June 17, 2011 OSIS Option to Purchase Common Stock Common Stock (5,647) $17.90 June 22, 2011 5,647 Disposed
June 7, 2011 OSIS Option to Sell Common Stock Common Stock (53,565) $17.37 June 22, 2011 53,565 Disposed
June 6, 2011 OSIS Option to Sell Common Stock Common Stock (3,327) $17.37 June 22, 2011 3,327 Disposed
May 19, 2011 OSIS Option to Sell Common Stock Common Stock (29,277) $17.37 June 22, 2011 29,277 Disposed
May 19, 2011 OSIS Option to Sell Common Stock Common Stock (2,184) $17.90 June 23, 2011 2,184 Disposed
May 18, 2011 OSIS Option to Sell Common Stock Common Stock (42,169) $17.90 June 23, 2011 42,169 Disposed
Sept. 21, 2010 OSIS Option to Sell Common Stock Common Stock (28,000) $18.53 Nov. 10, 2010 28,000 Disposed
Sept. 20, 2010 OSIS Option to Sell Common Stock Common Stock (72,000) $18.53 Nov. 10, 2010 72,000 Disposed
June 22, 2010 OSIS Option to Sell Common Stock Common Stock (21,147) $25.91 July 10, 2010 21,147 Disposed
Oct. 25, 2009 OSIS Option to Purchase Common Stock Common Stock (21,202) $14.50 Oct. 25, 2009 21,202 Disposed
Jan. 12, 2009 OSIS Option to Purchase Common Stock Common Stock (80,000) $12.52 Jan. 11, 2019 80,000 Acquired
March 17, 2008 OSIS Option to Purchase Common Stock Common Stock (68,935) $17.37 June 22, 2011 68,935 Acquired
March 17, 2008 OSIS Option to Purchase Common Stock Common Stock (17,234) $17.37 June 22, 2011 17,234 Acquired
Jan. 22, 2008 OSIS Option to Purchase Common Stock Common Stock (9,756) $26.81 Nov. 21, 2011 9,756 Acquired
Jan. 22, 2008 OSIS Option to Purchase Common Stock Common Stock (21,147) $25.91 July 10, 2010 21,147 Acquired
Jan. 22, 2008 OSIS Option to Purchase Common Stock Common Stock (21,202) $14.50 Oct. 25, 2009 21,202 Acquired
Jan. 5, 2008 OSIS Option ot Purchase Common Stock Common Stock (100,000) $16.31 Jan. 7, 2008 100,000 Disposed
Sept. 17, 2007 OSIS Option to purchase common stock Common Stock (60,000) $20.02 June 29, 2013 60,000 Acquired
Aug. 21, 2006 OSIS Option to purchase common stock Common Stock (50,000) $3.77 Aug. 26, 2006 50,000 Disposed
June 23, 2006 OSIS Option to purchase common stock Common Stock (50,000) $17.90 June 23, 2011 50,000 Acquired
April 12, 2006 OSIS Employee Stock Option Common Stock (40,000) $3.44 April 18, 2006 40,000 Disposed
Nov. 11, 2005 OSIS Option to Purchase Common Stock Common Stock (100,000) $18.53 Nov. 11, 2010 100,000 Acquired
April 22, 2005 OSIS Employee Stock Option Common Stock (50,000) $7.70 April 24, 2005 50,000 Disposed
Nov. 26, 2004 OSIS Option to Purchase Common Stock Common Stock (80,000) $20.91 Nov. 26, 2009 80,000 Acquired
Feb. 13, 2004 OSIS Option to Purchase Common Stock Common Stock (100,000) $19.86 Feb. 13, 2009 100,000 Acquired
Nov. 17, 2003 OSIS Employee Stock Option Common Stock (5,200) $7.00 Nov. 18, 2003 5,200 Acquired
Nov. 13, 2003 OSIS Employee Stock Option Common Stock (5,200) $7.00 Nov. 18, 2003 5,200 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

08

Matched by name from proxy statements (DEF 14A) — verify against the filing.

OSIS

President & CEO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2019 $975,000 · $3,400,039 · $1,950,000 $302,451 $190,605 $6,818,095
2018 $1,000,000 · $4,348,546 · $1,750,000 $14,750 $196,944 $7,310,240
2017 $1,000,000 · $4,316,792 · $1,250,000 $302,189 $209,498 $7,078,479

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.