IDEXX LABORATORIES INC /DE (IDXX)

Latest Insider Confidence Score

2026Q1

38.5
Bearish

Company insider confidence (by quarter)

2014Q1 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Ayers Jonathan W Director 122,605 Sep 9, 2024
Mazelsky Jonathan Jay CEO 82,443.3 Sep 4, 2025
McKeon Brian P CFO 46,360.64 Feb 10, 2023
End William T Director 31,786 May 11, 2018
Craig Thomas Director 24,471 May 1, 2017

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Mar 3, 2026 Mar 5, 2026 Underberg Sharon E. EVP, GC & Corporate Secretary Neutral 52.5 - 0.00% ✗ -
Mar 3, 2026 Mar 5, 2026 Hunt Nimrata President Sell 17.5 -1,758 -8.76% ✗ $1.1M
Feb 12, 2026 Mar 3, 2026 Erickson Michael G President Neutral 52.5 - 0.00% ✗ -
Feb 26, 2026 Mar 2, 2026 MAZELSKY JONATHAN JAY CEO Sell 15.0 -23,326 -21.81% ✗ $15.3M
Feb 26, 2026 Feb 27, 2026 Hunt Nimrata President Sell 17.5 -2,693 -11.84% ✗ $1.8M
Feb 17, 2026 Feb 19, 2026 Erickson Michael G President Sell 17.5 -5,371 -5.63% ✗ $3.4M
Feb 17, 2026 Feb 19, 2026 Vandebroek Sophie V. Director Sell 20.0 -1,464 -14.23% ✗ $920.3K
Feb 14, 2026 Feb 17, 2026 Underberg Sharon E. EVP, GC & Corporate Secretary Sell 22.5 -251 -3.49% ✗ $158K
Feb 14, 2026 Feb 17, 2026 Smith Martin Alexander President Sell 22.5 -302 -12.28% ✗ $190.1K
Feb 14, 2026 Feb 17, 2026 Schreck Michael President Sell 20.0 -876 -22.09% ✗ $551.3K
Feb 14, 2026 Feb 17, 2026 MAZELSKY JONATHAN JAY CEO Sell 20.0 -915 -1.08% ✗ $575.9K
Feb 14, 2026 Feb 17, 2026 Lane Michael President Sell 22.5 -221 -2.50% ✗ $139.1K
Feb 14, 2026 Feb 17, 2026 Johnson Michael Perkins President Sell 22.5 -178 -5.99% ✗ $112K
Feb 14, 2026 Feb 17, 2026 Hunt Nimrata President Sell 20.0 -1,154 -4.83% ✗ $726.3K
Feb 14, 2026 Feb 17, 2026 FENNELL GEORGE President Sell 22.5 -199 -1.94% ✗ $125.2K
Feb 14, 2026 Feb 17, 2026 Erickson Michael G President Sell 20.0 -974 -7.13% ✗ $613K
Feb 14, 2026 Feb 17, 2026 Emerson Andrew CFO Sell 22.5 -123 -2.83% ✗ $77.4K
Feb 9, 2026 Feb 11, 2026 FENNELL GEORGE President Sell 16.3 -11,345 -53.60% ✗ $7.3M
Jan 30, 2026 Feb 3, 2026 HOOLEY JOSEPH L Director Neutral 90.0 +36 92.31% ✗ -
Dec 1, 2025 Dec 3, 2025 Peacock Karen Director Neutral 52.5 - 0.00% ✗ -
Nov 7, 2025 Nov 10, 2025 Hunt Nimrata President Sell 16.3 -9,425 -30.67% ✗ $6.6M
Oct 30, 2025 Nov 3, 2025 HOOLEY JOSEPH L Director Neutral 90.0 +39 100.00% ✗ -
Oct 20, 2025 Peacock Karen Director Neutral 52.5 - 0.00% ✗ -
Oct 14, 2025 Peacock Karen Director Neutral 52.5 - 0.00% ✗ -
Aug 15, 2025 Sep 4, 2025 MAZELSKY JONATHAN JAY CEO Neutral 27.5 -1,051 -1.26% ✗ -
Sep 1, 2025 Sep 3, 2025 Smith Martin Alexander President Sell 45.0 -5 -0.35% ✗ $3.2K
Sep 1, 2025 Sep 3, 2025 HOOLEY JOSEPH L Director Neutral 52.5 - 0.00% ✗ -
Aug 22, 2025 Aug 26, 2025 SZOSTAK M ANNE Director Sell 17.5 -2,187 -51.46% ✗ $1.4M
Aug 12, 2025 Aug 14, 2025 Erickson Michael G President Sell 20.0 -405 -3.47% ✗ $263.8K
Aug 14, 2025 Erickson Michael G President Neutral 52.5 - 0.00% ✗ -
Aug 14, 2025 Erickson Michael G President Neutral 52.5 - 0.00% ✗ -
Aug 11, 2025 Aug 13, 2025 Hunt Nimrata President Sell 20.0 -1,200 -6.61% ✗ $787.8K
Aug 8, 2025 Aug 12, 2025 Underberg Sharon E. EVP, GC & Corporate Secretary Sell 17.5 -5,450 -46.96% ✗ $3.6M
Aug 8, 2025 Aug 12, 2025 MAZELSKY JONATHAN JAY CEO Neutral 52.5 - 0.00% ✗ -
Aug 7, 2025 Aug 11, 2025 Emerson Andrew CFO Sell 20.0 -402 -9.41% ✗ $261.3K
Aug 6, 2025 Aug 8, 2025 Hunt Nimrata President Sell 17.5 -7,143 -28.22% ✗ $4.5M
Aug 6, 2025 Aug 8, 2025 MAZELSKY JONATHAN JAY CEO Sell 15.0 -29,260 -25.99% ✗ $18.5M
Aug 6, 2025 Aug 8, 2025 Lane Michael President Sell 16.3 -8,411 -25.12% ✗ $5.3M
Jul 18, 2025 HOOLEY JOSEPH L Director Neutral 52.5 - 0.00% ✗ -
Jun 1, 2025 Jun 3, 2025 Johnson Michael Perkins President Sell 20.0 -1,499 -38.79% ✗ $769.5K
May 21, 2025 May 23, 2025 SZOSTAK M ANNE Director Sell 17.5 -2,306 -52.78% ✗ $1.2M
May 13, 2025 May 14, 2025 JUNIUS DANIEL M Director Sell 17.5 -2,683 -44.81% ✗ $1.4M
May 9, 2025 May 13, 2025 Vandebroek Sophie V. Director Sell 20.0 -1,279 -12.04% ✗ $628.4K
May 6, 2025 May 8, 2025 Vandebroek Sophie V. Director Neutral 52.5 - 0.00% ✗ -
May 6, 2025 May 8, 2025 SZOSTAK M ANNE Director Neutral 52.5 - 0.00% ✗ -
May 7, 2025 May 8, 2025 SAMAD SAM Director Neutral 52.5 - 0.00% ✗ -
May 6, 2025 May 8, 2025 Kingsley Lawrence D Director Neutral 52.5 - 0.00% ✗ -
May 6, 2025 May 8, 2025 JUNIUS DANIEL M Director Neutral 52.5 - 0.00% ✗ -
May 6, 2025 May 8, 2025 ESSIG STUART Director Neutral 52.5 - 0.00% ✗ -
May 7, 2025 May 8, 2025 Claflin Bruce L. Director Neutral 52.5 - 0.00% ✗ -
May 7, 2025 May 8, 2025 Britt Irene Chang Director Neutral 52.5 - 0.00% ✗ -
Mar 10, 2025 Emerson Andrew CFO Neutral 52.5 - 0.00% ✗ -
Feb 14, 2025 Feb 18, 2025 MCKEON BRIAN P CFO Sell 20.0 -569 -1.13% ✗ $252.9K
Feb 14, 2025 Feb 18, 2025 Underberg Sharon E. EVP, GC & Corporate Secretary Sell 90.0 +485 8.60% ✗ $97.4K
Feb 14, 2025 Feb 18, 2025 Smith Martin Alexander President Sell 22.5 -374 -21.18% ✗ $166.3K
Feb 14, 2025 Feb 18, 2025 Schreck Michael President Sell 22.5 -441 -18.40% ✗ $196K
Feb 14, 2025 Feb 18, 2025 MAZELSKY JONATHAN JAY CEO Sell 20.0 -1,222 -1.45% ✗ $543.2K
Feb 14, 2025 Feb 18, 2025 Lane Michael President Sell 22.5 -272 -3.41% ✗ $120.9K
Feb 14, 2025 Feb 18, 2025 Johnson Michael Perkins President Sell 22.5 -118 -20.16% ✗ $52.5K
Feb 14, 2025 Feb 18, 2025 Hunt Nimrata President Sell 22.5 -268 -2.10% ✗ $119.1K
Feb 14, 2025 Feb 18, 2025 FENNELL GEORGE President Sell 22.5 -133 -1.57% ✗ $59.1K
Feb 14, 2025 Feb 18, 2025 Erickson Michael G President Sell 32.5 -177 -0.83% ✗ $78.7K
Feb 11, 2025 Feb 12, 2025 Erickson Michael G President Neutral 52.5 - 0.00% ✗ -
Feb 7, 2025 Feb 11, 2025 FENNELL GEORGE President Sell 17.5 -9,986 -54.98% ✗ $4.6M
Feb 7, 2025 Feb 10, 2025 SZOSTAK M ANNE Director Sell 17.5 -3,000 -49.50% ✗ $1.4M
Jan 21, 2025 Erickson Michael G President Neutral 52.5 - 0.00% ✗ -
Nov 27, 2024 Nov 29, 2024 Vandebroek Sophie V. Director Sell 22.5 -568 -38.56% ✗ $144.6K
Sep 6, 2024 Sep 9, 2024 AYERS JONATHAN W Director Neutral 52.5 - 0.00% ✗ -
Sep 5, 2024 Sep 9, 2024 SZOSTAK M ANNE Director Sell 22.5 -500 -7.62% ✗ $234.7K
Sep 1, 2024 Sep 4, 2024 Schreck Michael President Sell 26.3 -48 -4.99% ✗ $23.1K
Sep 1, 2024 Sep 4, 2024 Smith Martin Alexander President Sell 37.5 -5 -0.97% ✗ $2.4K
Aug 5, 2024 Aug 7, 2024 MCKEON BRIAN P CFO Sell 40.0 -117 -0.24% ✗ $53.2K
Aug 5, 2024 Aug 7, 2024 MAZELSKY JONATHAN JAY CEO Sell 40.0 -170 -0.21% ✗ $77.4K
May 17, 2024 May 20, 2024 Claflin Bruce L. Director Sell 22.5 -200 -10.41% ✗ $108.2K
May 6, 2024 May 8, 2024 Vandebroek Sophie V. Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 SZOSTAK M ANNE Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 SAMAD SAM Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 Kingsley Lawrence D Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 JUNIUS DANIEL M Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 ESSIG STUART Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 COLLINS Asha Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 Claflin Bruce L. Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 Britt Irene Chang Director Neutral 52.5 - 0.00% ✗ -
May 6, 2024 May 8, 2024 AYERS JONATHAN W Director Neutral 52.5 - 0.00% ✗ -
Mar 6, 2024 Mar 7, 2024 POLEWACZYK JAMES F President Sell 17.5 -8,104 -43.07% ✗ $4.5M
Mar 5, 2024 Mar 7, 2024 Vandebroek Sophie V. Director Sell 20.0 -1,404 -13.01% ✗ $790.4K
Feb 29, 2024 Mar 4, 2024 MAZELSKY JONATHAN JAY CEO Neutral 37.5 -550 -0.67% ✗ -
Feb 21, 2024 Feb 22, 2024 MAZELSKY JONATHAN JAY CEO Neutral 52.5 - 0.00% ✗ -
Feb 16, 2024 Feb 20, 2024 Underberg Sharon E. EVP, GC & Corporate Secretary Neutral 52.5 - 0.00% ✗ -
Feb 15, 2024 Feb 20, 2024 MCKEON BRIAN P CFO Neutral 52.5 - 0.00% ✗ -
Feb 14, 2024 Feb 16, 2024 Underberg Sharon E. EVP, GC & Corporate Secretary Sell 95.0 +830 19.38% ✗ $199.6K
Feb 14, 2024 Feb 16, 2024 Smith Martin Alexander President Sell 22.5 -108 -18.53% ✗ $60.5K
Feb 14, 2024 Feb 16, 2024 Schreck Michael President Sell 22.5 -117 -12.96% ✗ $65.6K
Feb 14, 2024 Feb 16, 2024 POLEWACZYK JAMES F President Sell 22.5 -279 -2.54% ✗ $156.4K
Feb 14, 2024 Feb 16, 2024 MCKEON BRIAN P CFO Sell 20.0 -1,097 -2.22% ✗ $614.9K
Feb 14, 2024 Feb 16, 2024 MAZELSKY JONATHAN JAY CEO Sell 17.5 -1,839 -2.20% ✗ $1M
Feb 14, 2024 Feb 16, 2024 Lane Michael President Sell 22.5 -283 -3.87% ✗ $158.6K
Feb 14, 2024 Feb 16, 2024 Johnson Michael Perkins EVP and CHRO Sell 26.3 -60 -24.66% ✗ $33.6K
Feb 14, 2024 Feb 16, 2024 Hunt Nimrata President Sell 40.0 -55 -0.46% ✗ $147.4K
Feb 14, 2024 Feb 16, 2024 FENNELL GEORGE SVP, Chief Revenue Officer Sell 22.5 -162 -2.29% ✗ $90.8K