IDXX insider transactions
IDEXX Laboratories Inc. (IDXX) Form 4 insider transactions - real-time wire coverage of every officer, director, and 10% owner trade.
IDXX insiders
Everyone who has filed a Form 3, 4, 5 or 144 at IDEXX Laboratories Inc., latest first. Follow anyone to get their next filing.
- Sharon E. UnderbergEVP, GC & Corporate Secretary-$9.68M
- Jonathan Jay MazelskyExecutive Chair of the Board, Director-$90M
- Michael LaneExecutive Vice President-$17.1M
- Daniel M JuniusDirector-$8.62M
- Joseph L HooleyDirector, since July 2025
- Lawrence D KingsleyDirector-$1.17M
- Andrew EmersonEVP, CFO and Treasurer, since March 2025
- George FennellExecutive Vice President, since January 2024-$16.7M
- Sam SamadDirector
- Sophie V. VandebroekDirector-$5.15M
- Karen PeacockDirector, since October 2025
- Bruce L. ClaflinDirector-$4.04M
- Stuart EssigDirector
- Irene Chang BrittDirector, since July 2023
- M Anne SzostakDirector-$13.4M
- Nimrata HuntExecutive Vice President-$15.2M
- Michael G EricksonExecutive Vice President, since January 2024-$3.63M
- Martin Alexander SmithExecutive Vice President, since August 2021
- Michael SchreckExecutive Vice President, since January 2024
- Michael Perkins JohnsonExecutive Vice President, since March 2022
- Brian P MckeonEVP, CFO and Treasurer-$42.5M
- Jonathan W AyersDirector-$20.3M
- Asha CollinsDirector
- James F PolewaczykExecutive Vice President-$27.9M
- Kathy V TurnerOfficer-$14.8M
- Giovani TwiggeOfficer
- Rebecca M HendersonDirector-$1.56M
Recent Form 3, 4, and 5 filings for IDXX
- EVP, GC & Corporate Secretary Underberg Sharon E. exercised 8,906 shares at a strike of $288.78 and sold $6,132,605 worth of shares (8,906 units at $688.59) (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Lane Michael sold $2,740,069 worth of shares (3,979 units at $688.64), decreasing direct ownership by 49% to 4,076 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Chair of the Board Mazelsky Jonathan Jay exercised 25,140 shares at a strike of $178.26 and sold $17,678,195 worth of shares (25,140 units at $703.19) (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Junius Daniel M sold $844,888 worth of shares (1,200 units at $704.07), decreasing direct ownership by 34% to 2,361 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L was granted 48 shares, increasing direct ownership by 15% to 373 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Kingsley Lawrence D exercised 2,203 shares at a strike of $114.17 and sold $1,172,178 worth of shares (2,203 units at $532.08) (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, CFO and Treasurer Emerson Andrew exercised 265 shares at a strike of $178.26 and covered exercise/tax liability with 86 shares, increasing direct ownership by 4% to 4,421 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L was granted 49 shares, increasing direct ownership by 18% to 325 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Fennell George converted options into 639 shares and covered exercise/tax liability with 284 shares, increasing direct ownership by 4% to 10,433 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Samad Sam4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Vandebroek Sophie V.4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Peacock Karen4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Junius Daniel M4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Kingsley Lawrence D4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Hooley Joseph L4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Claflin Bruce L.4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Essig Stuart4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Britt Irene Chang4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Vandebroek Sophie V. converted options into 257 shares, increasing direct ownership by 40% to 905 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Szostak M Anne converted options into 257 shares, increasing direct ownership by 98% to 519 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Peacock Karen converted options into 101 shares, increasing direct ownership by 10,100% to 102 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Junius Daniel M converted options into 257 shares, increasing direct ownership by 8% to 3,561 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Kingsley Lawrence D converted options into 339 shares, increasing direct ownership by 4% to 9,568 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L converted options into 158 shares, increasing direct ownership by 134% to 276 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L was granted 43 shares, increasing direct ownership by 57% to 118 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, GC & Corporate Secretary Underberg Sharon E. exercised 197 shares at a strike of $505.53, increasing direct ownership by 3% to 7,138 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Hunt Nimrata sold $1,115,577 worth of shares (1,758 units at $634.57), decreasing direct ownership by 9% to 18,141 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Amendment: SEC Form 4 filed by Executive Vice President Erickson Michael G4/A - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- President and CEO Mazelsky Jonathan Jay exercised 23,523 shares at a strike of $144.65 and sold $15,338,081 worth of shares (23,326 units at $657.55), increasing direct ownership by 0.24% to 83,803 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Hunt Nimrata sold $1,781,531 worth of shares (2,693 units at $661.54), decreasing direct ownership by 12% to 19,899 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Erickson Michael G exercised 7,770 shares at a strike of $187.94 and sold $3,369,666 worth of shares (5,371 units at $627.38), increasing direct ownership by 19% to 15,092 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Vandebroek Sophie V. exercised 945 shares at a strike of $333.90 and sold $920,293 worth of shares (1,464 units at $628.62), decreasing direct ownership by 44% to 648 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, GC & Corporate Secretary Underberg Sharon E. converted options into 832 shares and covered exercise/tax liability with 251 shares, increasing direct ownership by 9% to 6,941 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Smith Martin Alexander converted options into 1,004 shares and covered exercise/tax liability with 302 shares, increasing direct ownership by 48% to 2,157 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Schreck Michael converted options into 1,959 shares and covered exercise/tax liability with 876 shares, increasing direct ownership by 54% to 3,089 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- President and CEO Mazelsky Jonathan Jay converted options into 2,057 shares and covered exercise/tax liability with 915 shares, increasing direct ownership by 1% to 83,606 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Lane Michael converted options into 1,092 shares and covered exercise/tax liability with 221 shares, increasing direct ownership by 12% to 8,024 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Johnson Michael Perkins converted options into 573 shares and covered exercise/tax liability with 178 shares, increasing direct ownership by 16% to 2,795 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Hunt Nimrata converted options into 2,587 shares and covered exercise/tax liability with 1,154 shares, increasing direct ownership by 7% to 22,592 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Fennell George covered exercise/tax liability with 199 shares and converted options into 454 shares, increasing direct ownership by 3% to 10,078 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Erickson Michael G converted options into 2,363 shares and covered exercise/tax liability with 974 shares, increasing direct ownership by 12% to 12,693 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, CFO and Treasurer Emerson Andrew converted options into 456 shares and covered exercise/tax liability with 123 shares, increasing direct ownership by 9% to 4,222 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Fennell George exercised 12,821 shares at a strike of $67.85 and sold $7,336,993 worth of shares (11,345 units at $646.72), increasing direct ownership by 18% to 9,823 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L was granted 36 shares, increasing direct ownership by 92% to 75 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Peacock Karen4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Hunt Nimrata sold $6,629,014 worth of shares (9,425 units at $703.34) and exercised 12,530 shares at a strike of $382.28, increasing direct ownership by 17% to 21,149 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Hooley Joseph L was granted 39 shares (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Amendment: New insider Peacock Karen claimed ownership of 1 shares (SEC Form 3)3/A - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- New insider Peacock Karen claimed no ownership of stock in the company (SEC Form 3)3 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- President and CEO Mazelsky Jonathan Jay gifted 1,051 shares, decreasing direct ownership by 1% to 82,443 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Smith Martin Alexander converted options into 18 shares and covered exercise/tax liability with 5 shares, increasing direct ownership by 0.92% to 1,434 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- SEC Form 4 filed by Director Hooley Joseph L4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Director Szostak M Anne exercised 2,187 shares at a strike of $206.62, sold $1,415,700 worth of shares (2,187 units at $647.33), gifted 259 shares and received a gift of 259 shares (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Erickson Michael G sold $263,813 worth of shares (406 units at $649.96), decreasing direct ownership by 3% to 11,287 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Amendment: SEC Form 5 filed by Erickson Michael G5/A - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Amendment: New insider Erickson Michael G claimed ownership of 9,377 shares (SEC Form 3)3/A - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- Executive Vice President Hunt Nimrata sold $787,840 worth of shares (1,200 units at $656.53) and exercised 1,226 shares at a strike of $244.16, increasing direct ownership by 0.14% to 18,033 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, GC & Corporate Secretary Underberg Sharon E. exercised 5,633 shares at a strike of $217.89 and sold $3,551,220 worth of shares (5,450 units at $651.60), increasing direct ownership by 3% to 6,339 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- President and CEO Mazelsky Jonathan Jay exercised 183 shares at a strike of $598.49, increasing direct ownership by 0.22% to 83,494 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)
- EVP, CFO and Treasurer Emerson Andrew exercised 1,849 shares at a strike of $141.60 and covered exercise/tax liability with 402 shares, increasing direct ownership by 60% to 3,871 units (SEC Form 4)4 - IDEXX LABORATORIES INC /DE (0000874716) (Issuer)