Jonathan Jay Mazelsky

CIK 1556270 · View on SEC EDGAR ↗

Insider

First SEC filing: June 5, 2026 · Latest: June 5, 2026

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Insider at

Insider transactions

1 buys (P) 13 sells (S) Net: $-15,236,689 + 75 non-open-market transactions below Avg return of open purchases vs now: 7.9% 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

75 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 12, 2026 XRAY P 10,000 $10.14 $101,400 61,669 Direct +19.35% Acquired 7.9% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,343 $656.85 $882,150 97,774 Direct -1.35% Disposed -14.4% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 2,860 $657.84 $1,881,422 94,914 Direct -2.93% Disposed -14.5% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 3,660 $658.92 $2,411,647 91,254 Direct -3.86% Disposed -14.6% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 2,859 $659.75 $1,886,225 88,395 Direct -3.13% Disposed -14.7% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,000 $662.16 $662,160 86,195 Direct -1.15% Disposed -15.0% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 2,589 $663.04 $1,716,611 83,606 Direct -3.00% Disposed -15.2% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,200 $661.10 $793,320 87,195 Direct -1.36% Disposed -14.9% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,488 $655.85 $975,905 99,117 Direct -1.48% Disposed -14.2% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,111 $654.63 $727,294 100,605 Direct -1.09% Disposed -14.1% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,171 $653.68 $765,459 101,716 Direct -1.14% Disposed -13.9% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,669 $652.49 $1,089,006 102,887 Direct -1.60% Disposed -13.8% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,095 $651.49 $713,382 104,556 Direct -1.04% Disposed -13.6% (price as of 2026-08-20)
Feb. 26, 2026 IDXX S 1,281 $650.67 $833,508 105,651 Direct -1.20% Disposed -13.5% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 660 $639.37 $421,984 83,311 Direct -0.79% Disposed -12.0% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 880 $636.81 $560,393 83,971 Direct -1.04% Disposed -11.7% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 1,822 $636.15 $1,159,065 84,851 Direct -2.10% Disposed -11.6% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 3,526 $635.13 $2,239,468 86,673 Direct -3.91% Disposed -11.4% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 3,000 $632.56 $1,897,680 90,199 Direct -3.22% Disposed -11.1% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 7,299 $631.61 $4,610,121 93,199 Direct -7.26% Disposed -10.9% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 6,056 $630.59 $3,818,853 100,498 Direct -5.68% Disposed -10.8% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 3,397 $629.82 $2,139,499 106,554 Direct -3.09% Disposed -10.7% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 1,525 $628.27 $958,112 109,951 Direct -1.37% Disposed -10.5% (price as of 2026-08-20)
Aug. 6, 2025 IDXX S 1,095 $626.90 $686,456 111,476 Direct -0.97% Disposed -10.3% (price as of 2026-08-20)
Feb. 7, 2024 IDXX S 705 $575.48 $405,713 79,247 Direct -0.88% Disposed -2.2% (price as of 2026-08-20)

Showing latest 100 of 220 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.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Dec. 31, 2026 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (2,638) — — 2,638 Acquired
June 30, 2026 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (2,842) — — 2,842 Acquired
March 31, 2026 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (2,645) — — 2,645 Acquired
Feb. 27, 2026 IDXX Incentive Stock Option (right-to-buy) Common Stock (197) $505.53 Feb. 13, 2032 197 Disposed
Feb. 26, 2026 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (23,326) $141.60 Feb. 13, 2027 23,326 Disposed
Feb. 14, 2026 IDXX Restricted Stock Unit Common Stock (1,099) — — 1,099 Disposed
Feb. 14, 2026 IDXX Restricted Stock Unit Common Stock (958) — — 958 Disposed
Feb. 12, 2026 IDXX Restricted Stock Unit Common Stock (13,407) — — 13,407 Acquired
Jan. 9, 2026 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (154) — — 154 Acquired
Oct. 10, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (123) — — 123 Acquired
Sept. 30, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (2,386) — — 2,386 Acquired
Aug. 8, 2025 IDXX Premium Incentive Stock Option (right-to-buy) Common Stock (183) $598.49 Feb. 13, 2031 183 Disposed
Aug. 6, 2025 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (29,260) $67.85 Feb. 13, 2026 29,260 Disposed
July 11, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (75) — — 75 Acquired
July 1, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (1,561) — — 1,561 Acquired
April 11, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (75) — — 75 Acquired
March 31, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (1,687) — — 1,687 Acquired
Feb. 14, 2025 IDXX Restricted Stock Unit Common Stock (1,100) — — 1,100 Disposed
Feb. 14, 2025 IDXX Restricted Stock Unit Common Stock (958) — — 958 Disposed
Feb. 14, 2025 IDXX Restricted Stock Unit Common Stock (689) — — 689 Disposed
Feb. 13, 2025 IDXX Incentive Stock Option (right-to-buy) Common Stock (217) $459.76 Feb. 12, 2035 217 Acquired
Feb. 13, 2025 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (25,932) $459.76 Feb. 12, 2035 25,932 Acquired
Jan. 10, 2025 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (39) — — 39 Acquired
Dec. 30, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (1,340) — — 1,340 Acquired
Oct. 11, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (23) — — 23 Acquired
Sept. 30, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (936) — — 936 Acquired
Aug. 5, 2024 IDXX Restricted Stock Unit Common Stock (384) — — 384 Disposed
July 12, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (22) — — 22 Acquired
June 28, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (995) — — 995 Acquired
April 12, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (13) — — 13 Acquired
March 28, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (761) — — 761 Acquired
Feb. 21, 2024 IDXX Incentive Stock Option (right-to-buy) Common Stock (483) $206.94 Feb. 13, 2029 483 Disposed
Feb. 14, 2024 IDXX Restricted Stock Unit Common Stock (1,100) — — 1,100 Disposed
Feb. 14, 2024 IDXX Restricted Stock Unit Common Stock (958) — — 958 Disposed
Feb. 14, 2024 IDXX Restricted Stock Unit Common Stock (689) — — 689 Disposed
Feb. 14, 2024 IDXX Restricted Stock Unit Common Stock (974) — — 974 Disposed
Feb. 14, 2024 IDXX Restricted Stock Unit Common Stock (435) — — 435 Disposed
Feb. 14, 2024 IDXX Incentive Stock Option (right-to-buy) Common Stock (178) $560.56 Feb. 13, 2034 178 Acquired
Feb. 14, 2024 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (21,335) $560.56 Feb. 13, 2034 21,335 Acquired
Feb. 14, 2024 IDXX Incentive Stock Option (right to buy) Common Stock (806) $124.00 Feb. 13, 2024 806 Acquired
Feb. 7, 2024 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (12,000) $67.85 Feb. 13, 2026 12,000 Disposed
Jan. 12, 2024 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (6) — — 6 Acquired
Dec. 29, 2023 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (703) — — 703 Acquired
Dec. 4, 2023 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (13,424) $79.54 Feb. 13, 2025 13,424 Disposed
Oct. 13, 2023 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (5) — — 5 Acquired
Sept. 29, 2023 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (729) — — 729 Acquired
Aug. 31, 2023 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (13,424) $79.54 Feb. 13, 2025 13,424 Disposed
Aug. 5, 2023 IDXX Restricted Stock Unit Common Stock (384) — — 384 Disposed
July 14, 2023 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (1) — — 1 Acquired
June 28, 2023 XRAY Phantom Stock (Directors' Deferred Compensation) DDC Common Stock (264) — — 264 Acquired
May 4, 2023 IDXX Incentive Stock Option (right-to-buy) Common Stock (560) $178.26 Feb. 13, 2028 560 Disposed
Aug. 5, 2020 IDXX Restricted Stock Unit Common Stock (385) — — 385 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (459) — — 459 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (737) — — 737 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (472) — — 472 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (403) — — 403 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (544) — — 544 Disposed
Feb. 14, 2018 IDXX Restricted Stock Unit Common Stock (2,524) — — 2,524 Acquired
Feb. 14, 2018 IDXX Incentive Stock Option (right-to-buy) Common Stock (560) $178.26 Feb. 13, 2028 560 Acquired
Feb. 14, 2018 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (25,140) $178.26 Feb. 13, 2028 25,140 Acquired
Dec. 5, 2017 IDXX Restricted Stock Unit Common Stock (961) — — 961 Disposed
Sept. 1, 2017 IDXX Restricted Stock Unit Common Stock (2,366) — — 2,366 Disposed
Feb. 14, 2017 IDXX Restricted Stock Unit Common Stock (737) — — 737 Disposed
Feb. 14, 2017 IDXX Restricted Stock Unit Common Stock (472) — — 472 Disposed
Feb. 14, 2017 IDXX Restricted Stock Unit Common Stock (403) — — 403 Disposed
Feb. 14, 2017 IDXX Restricted Stock Unit Common Stock (545) — — 545 Disposed
Feb. 14, 2017 IDXX Restricted Stock Unit Common Stock (2,295) — — 2,295 Acquired
Feb. 14, 2017 IDXX Incentive Stock Option (right-to-buy) Common Stock (706) $141.60 Feb. 13, 2027 706 Acquired
Feb. 14, 2017 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (23,326) $141.60 Feb. 13, 2027 23,326 Acquired
Dec. 5, 2016 IDXX Restricted Stock Unit Common Stock (962) — — 962 Disposed
Nov. 18, 2016 IDXX Incentive Stock Option (right-to-buy) Common Stock (2,204) $47.53 Aug. 31, 2019 2,204 Disposed
Sept. 1, 2016 IDXX Restricted Stock Unit Common Stock (2,366) — — 2,366 Disposed
Feb. 14, 2016 IDXX Restricted Stock Unit Common Stock (472) — — 472 Disposed
Feb. 14, 2016 IDXX Restricted Stock Unit Common Stock (403) — — 403 Disposed
Feb. 14, 2016 IDXX Restricted Stock Unit Common Stock (545) — — 545 Disposed
Feb. 14, 2016 IDXX Restricted Stock Unit Common Stock (3,685) — — 3,685 Acquired
Feb. 14, 2016 IDXX Incentive Stock Option (right-to-buy) Common Stock (1,475) $67.85 Feb. 13, 2026 1,475 Acquired
Feb. 14, 2016 IDXX Non-Qualified Stock Option (right-to-buy) Common Stock (41,260) $67.85 Feb. 13, 2026 41,260 Acquired
Dec. 5, 2015 IDXX Restricted Stock Unit Common Stock (962) — — 962 Disposed
Sept. 1, 2015 IDXX Restricted Stock Unit Common Stock (2,366) — — 2,366 Disposed
Feb. 14, 2015 IDXX Restricted Stock Unit Common Stock (273) — — 273 Disposed
Feb. 14, 2015 IDXX Restricted Stock Unit Common Stock (202) — — 202 Disposed
Feb. 14, 2015 IDXX Restricted Stock Unit Common Stock (1,179) — — 1,179 Acquired
Feb. 14, 2015 IDXX Incentive Stock Option (right to buy) Common Stock (628) $159.08 Feb. 13, 2025 628 Acquired
Feb. 14, 2015 IDXX Non-Qualified Stock Option (right to buy) Common Stock (13,424) $159.08 Feb. 13, 2025 13,424 Acquired
Dec. 23, 2014 IDXX Incentive Stock Option (right to buy) Common Stock (1,000) $95.06 Aug. 31, 2019 1,000 Disposed
Dec. 5, 2014 IDXX Restricted Stock Unit Common Stock (481) — — 481 Disposed
Sept. 1, 2014 IDXX Restricted Stock Unit Common Stock (1,184) — — 1,184 Disposed
Feb. 14, 2014 IDXX Restricted Stock Unit Common Stock (273) — — 273 Disposed
Feb. 14, 2014 IDXX Restricted Stock Unit Common Stock (1,008) — — 1,008 Acquired
Feb. 14, 2014 IDXX Non-Qualified Stock Option (right to buy) Common Stock (9,499) $124.00 Feb. 13, 2024 9,499 Acquired
Dec. 5, 2013 IDXX Restricted Stock Unit Common Stock (2,404) — — 2,404 Acquired
Dec. 5, 2013 IDXX Non-Qualified Stock Option (right to buy) Common Stock (24,501) $104.00 Dec. 4, 2023 24,501 Acquired
Sept. 1, 2013 IDXX Restricted Stock Unit Common Stock (1,184) — — 1,184 Disposed
Feb. 14, 2013 IDXX Restricted Stock Unit Common Stock (1,363) — — 1,363 Acquired
Feb. 14, 2013 IDXX Incentive Stock Option (right to buy) Common Stock (1,094) $91.68 Feb. 13, 2020 1,094 Acquired
Feb. 14, 2013 IDXX Non-Qualified Stock Option (right to buy) Common Stock (13,014) $91.68 Feb. 13, 2020 13,014 Acquired
Sept. 1, 2012 IDXX Restricted Stock Unit Common Stock (5,917) — — 5,917 Acquired
Sept. 1, 2012 IDXX Non-Qualified Stock Option (right to buy) Common Stock (1,424) $95.06 Aug. 31, 2019 1,424 Acquired
Sept. 1, 2012 IDXX Incentive Stock Option (right to buy) Common Stock (5,255) $95.06 Aug. 31, 2019 5,255 Acquired

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

Initial ownership (Form 3) 1 holding

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

Date Ticker Security Shares Ownership
July 2, 2026 PODD Common Stock 0 Direct

Compensation (DEF 14A)

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

IDXX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2023 $1,000,000 — $2,187,697 $6,562,842 $1,737,500 — $31,270 $11,519,309
2022 $1,000,000 — $1,937,696 $5,812,593 $1,012,500 — $25,599 $9,788,388
2021 $976,923 — $1,500,029 $4,499,229 $2,062,500 — $26,340 $9,065,021

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