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Nasdaq · CIK 0000874716

IDXX IDEXX LABORATORIES INC /DE

Insider trading from SEC Form 4. Last filing 33 d ago. Close $518.00 on Oct 9, 2026, +3% from the 52-week low and -32% from the high.

Last 90 days

Net insider value
-$1.2M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
1
$1.2M by 1 insider
Insiders on file
16
with a Form 4 at this company

Price and insider trades, last year

IDXXOct 9, 2026 · close 518.00

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at IDEXX LABORATORIES INC /DE, scored.

ScoreInsiderValueHoldingsPrice contextFiled
30WeakLawrence D Kingsley
director
sell
$1.2M
2,203 shares
-19%-
53ModerateGeorge Fennell
Executive Vice President
sell
$4.6M
9,986 shares
-55%-
58ModerateM Anne Szostak
director
sell
$1.4M
3,000 shares
-49%-
36WeakSophie V. Vandebroek
director
sell
$145k
344 shares
-28%-

Congressional trades

17 trades in IDXX disclosed by members of Congress under the STOCK Act. All congressional trades.

MemberTradeAssetReported rangeTrade / filing dateSource
SaleIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kJan 13 / Feb 2
20 days after the trade
Clerk
Partial saleIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kOct 16, 2025 / Nov 4, 2025
19 days after the trade
Clerk
Byron Donalds
House · R-FL
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kSep 4, 2025 / Oct 7, 2025
33 days after the trade
Clerk
Byron Donalds
House · R-FL
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kSep 4, 2025 / Oct 7, 2025
33 days after the trade
Clerk
Partial saleIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kAug 7, 2025 / Sep 2, 2025
26 days after the trade
Clerk
Partial saleIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kJul 9, 2025 / Aug 5, 2025
27 days after the trade
Clerk
Jefferson Shreve
House · R-IN
SaleIDXX
IDEXX Laboratories, Inc. - Common Stock
$100k to $250kMay 12, 2025 / Jun 22, 2025
41 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kMay 15, 2025 / Jun 9, 2025
25 days after the trade
Clerk
Jefferson Shreve
House · R-IN
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$50k to $100kApr 7, 2025 / May 8, 2025
31 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kApr 7, 2025 / May 2, 2025
25 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kApr 4, 2025 / May 2, 2025
28 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kApr 1, 2025 / May 2, 2025
31 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kApr 9, 2025 / May 2, 2025
23 days after the trade
Clerk
SaleIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kApr 8, 2025 / Apr 28, 2025
20 days after the trade
Clerk
Jefferson Shreve
House · R-IN
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$15k to $50kMar 13, 2025 / Apr 11, 2025
29 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kMar 14, 2025 / Apr 2, 2025
19 days after the trade
Clerk
PurchaseIDXX
IDEXX Laboratories, Inc. - Common Stock
$1,001 to $15kFeb 25, 2025 / Mar 27, 2025
30 days after the trade
Clerk

Transactions

The last 100 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Sep 4, 2026Lawrence D Kingsley
director
MOption exercise
Common Stock
+2,203$114.17$252k11,77133 d ago
Sep 4, 2026Lawrence D Kingsley
director
SOpen-market sale
Common Stock
-2,203$532.08$1.2M9,56833 d ago
Sep 4, 2026Lawrence D Kingsley
director
MOption exercise
Non-Qualified Stock Option (right-to-buy)derivative
-2,203--033 d ago
May 7, 2025Bruce L. Claflin
director
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+600$0.00$0600May 8, 2025
May 7, 2025Irene Chang Britt
director
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+600$0.00$0600May 8, 2025
May 6, 2025Stuart Essig
director
MOption exercise
Common Stock
+262$0.00$02,236May 8, 2025
May 7, 2025Irene Chang Britt
director
AGrant or award
Deferred Stock Unitderivative
+257$0.00$0257May 8, 2025
May 6, 2025Stuart Essig
director
MOption exercise
Restricted Stock Unitderivative
-262$0.00$00May 8, 2025
May 7, 2025Bruce L. Claflin
director
AGrant or award
Deferred Stock Unitderivative
+257$0.00$0257May 8, 2025
May 7, 2025Stuart Essig
director
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+600$0.00$0600May 8, 2025
May 7, 2025Stuart Essig
director
AGrant or award
Deferred Stock Unitderivative
+257$0.00$0257May 8, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Common Stock
+689$0.00$082,447Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
MOption exercise
Common Stock
+69$0.00$020,905Feb 18, 2025
Feb 14, 2025Michael Perkins Johnson
Executive Vice President
MOption exercise
Common Stock
+176$0.00$0406Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
MOption exercise
Common Stock
+148$0.00$0683Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Common Stock
+137$0.00$05,779Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Common Stock
+80$0.00$01,018Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Common Stock
+252$0.00$031,209Feb 18, 2025
Feb 14, 2025Michael Lane
Executive Vice President
MOption exercise
Common Stock
+160$0.00$06,650Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
MOption exercise
Common Stock
+51$0.00$08,227Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
MOption exercise
Common Stock
+160$0.00$011,883Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
MOption exercise
Common Stock
+593$0.00$01,276Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
MOption exercise
Common Stock
+56$0.00$08,283Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
MOption exercise
Common Stock
+204$0.00$012,087Feb 18, 2025
Feb 14, 2025Michael Lane
Executive Vice President
MOption exercise
Common Stock
+204$0.00$06,854Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Common Stock
+303$0.00$031,512Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
MOption exercise
Common Stock
+93$0.00$020,998Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Common Stock
+173$0.00$05,952Feb 18, 2025
Feb 14, 2025Michael Perkins Johnson
Executive Vice President
MOption exercise
Common Stock
+179$0.00$0585Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Common Stock
+958$0.00$083,405Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Common Stock
+117$0.00$01,135Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
MOption exercise
Common Stock
+207$0.00$012,294Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Common Stock
+176$0.00$06,128Feb 18, 2025
Feb 14, 2025Michael Lane
Executive Vice President
MOption exercise
Common Stock
+220$0.00$07,074Feb 18, 2025
Feb 14, 2025Michael Perkins Johnson
Executive Vice President
FTax withholding
Common Stock
-118$444.53$52k467Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
MOption exercise
Common Stock
+189$0.00$01,465Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Common Stock
+308$0.00$031,820Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
MOption exercise
Common Stock
+57$0.00$08,340Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Common Stock
+1,100$0.00$084,505Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
MOption exercise
Common Stock
+94$0.00$021,092Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Common Stock
+791$0.00$01,926Feb 18, 2025
Feb 13, 2025Michael Perkins Johnson
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+3,657$0.00$03,657Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
MOption exercise
Common Stock
+301$0.00$012,595Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
MOption exercise
Common Stock
+301$0.00$01,766Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
MOption exercise
Common Stock
+140$0.00$08,480Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Common Stock
+218$0.00$06,346Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Common Stock
+299$0.00$032,119Feb 18, 2025
Feb 14, 2025Michael Lane
Executive Vice President
MOption exercise
Common Stock
+301$0.00$07,375Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
FTax withholding
Common Stock
-1,222$444.53$543k83,283Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
MOption exercise
Common Stock
+301$0.00$021,393Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Common Stock
+170$0.00$02,096Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Common Stock
+301$0.00$02,397Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
FTax withholding
Common Stock
-177$444.53$79k21,216Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
FTax withholding
Common Stock
-268$444.53$119k12,327Feb 18, 2025
Feb 13, 2025Michael Perkins Johnson
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
FTax withholding
Common Stock
-374$444.53$166k1,392Feb 18, 2025
Feb 13, 2025Jonathan Jay Mazelsky
President and CEO
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+25,932$0.00$025,932Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
FTax withholding
Common Stock
-219$444.53$97k6,127Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
FTax withholding
Common Stock
-569$444.53$253k31,550Feb 18, 2025
Feb 14, 2025Michael Lane
Executive Vice President
FTax withholding
Common Stock
-272$444.53$121k7,103Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
FTax withholding
Common Stock
-133$444.53$59k8,347Feb 18, 2025
Feb 13, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+4,504$0.00$04,504Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
FTax withholding
Common Stock
-441$444.53$196k1,956Feb 18, 2025
Feb 13, 2025Jonathan Jay Mazelsky
President and CEO
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025George Fennell
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+3,415$0.00$03,415Feb 18, 2025
Feb 13, 2025Michael Perkins Johnson
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+870$0.00$0870Feb 18, 2025
Feb 13, 2025Michael G Erickson
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+6,320$0.00$06,320Feb 18, 2025
Feb 13, 2025Martin Alexander Smith
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+6,320$0.00$06,320Feb 18, 2025
Feb 13, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025Michael Schreck
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+6,320$0.00$06,320Feb 18, 2025
Feb 13, 2025George Fennell
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 14, 2025Michael Perkins Johnson
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-176$0.00$0352Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Restricted Stock Unitderivative
-252$0.00$00Feb 18, 2025
Feb 13, 2025Michael G Erickson
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025Michael Lane
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+6,320$0.00$06,320Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Restricted Stock Unitderivative
-689$0.00$00Feb 18, 2025
Feb 13, 2025Martin Alexander Smith
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025Nimrata Hunt
Executive Vice President
AGrant or award
Non-Qualified Stock Option (right-to-buy)derivative
+6,320$0.00$06,320Feb 18, 2025
Feb 13, 2025Martin Alexander Smith
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+1,468$0.00$01,468Feb 18, 2025
Feb 13, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
AGrant or award
Restricted Stock Unitderivative
+1,060$0.00$01,060Feb 18, 2025
Feb 13, 2025Nimrata Hunt
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025Michael G Erickson
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+734$0.00$0734Feb 18, 2025
Feb 13, 2025Michael Schreck
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 14, 2025Michael Perkins Johnson
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-179$0.00$0535Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Restricted Stock Unitderivative
-303$0.00$0303Feb 18, 2025
Feb 13, 2025Michael Lane
Executive Vice President
AGrant or award
Incentive Stock Option (right-to-buy)derivative
+217$0.00$0217Feb 18, 2025
Feb 13, 2025George Fennell
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+816$0.00$0816Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Restricted Stock Unitderivative
-958$0.00$0958Feb 18, 2025
Feb 13, 2025Michael Lane
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+1,468$0.00$01,468Feb 18, 2025
Feb 14, 2025Martin Alexander Smith
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-148$0.00$0148Feb 18, 2025
Feb 14, 2025Sharon E. Underberg
EVP, GC & Corporate Secretary
MOption exercise
Restricted Stock Unitderivative
-137$0.00$00Feb 18, 2025
Feb 14, 2025Brian P McKeon
EVP, CFO and Treasurer
MOption exercise
Restricted Stock Unitderivative
-308$0.00$0615Feb 18, 2025
Feb 13, 2025Michael Schreck
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+1,468$0.00$01,468Feb 18, 2025
Feb 13, 2025Nimrata Hunt
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+1,468$0.00$01,468Feb 18, 2025
Feb 13, 2025Michael G Erickson
Executive Vice President
AGrant or award
Restricted Stock Unitderivative
+734$0.00$0734Feb 18, 2025
Feb 14, 2025George Fennell
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-51$0.00$00Feb 18, 2025
Feb 14, 2025Jonathan Jay Mazelsky
President and CEO
MOption exercise
Restricted Stock Unitderivative
-1,100$0.00$02,198Feb 18, 2025
Feb 14, 2025Michael Schreck
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-80$0.00$00Feb 18, 2025
Feb 14, 2025Michael G Erickson
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-69$0.00$00Feb 18, 2025
Feb 14, 2025Nimrata Hunt
Executive Vice President
MOption exercise
Restricted Stock Unitderivative
-160$0.00$00Feb 18, 2025

Insiders

Everyone who has filed a Form 4 here.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

IDXX insider trading: IDEXX LABORATORIES INC /DE | InsiderTell