Mazelsky Jonathan Jay's Form 4 filing
IDEXX Laboratories Inc (IDXX) · filed Mar 2, 2026
- Accession no.
- 0000874716-26-000043
- Filed
- Mar 2, 2026
- Trade date
- Feb 26-27, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Not checked
This filing lists 15 non-derivative transactions and 2 derivative transactions. Open-market sales total $15.3M. It was filed 4 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Mazelsky Jonathan JayCIK 0001556270 | Director, Officer (President and CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 26, 2026 | Common Stock | MOption exerciseAcquired | +23,326 | $141.60 | +$3,302,961.6 | 106,932.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,281 | $650.67F1 | −$833,508.27 | 105,651.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,095 | $651.49F2 | −$713,381.55 | 104,556.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,669 | $652.49F3 | −$1,089,005.81 | 102,887.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,171 | $653.68F4 | −$765,459.28 | 101,716.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,111 | $654.63F5 | −$727,293.93 | 100,605.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,488 | $655.85F6 | −$975,904.8 | 99,117.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,343 | $656.85F7 | −$882,149.55 | 97,774.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −2,860 | $657.84F8 | −$1,881,422.4 | 94,914.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −3,660 | $658.92F9 | −$2,411,647.2 | 91,254.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −2,859 | $659.75F10 | −$1,886,225.25 | 88,395.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,200 | $661.10F11 | −$793,320 | 87,195.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −1,000 | $662.16F12 | −$662,160 | 86,195.3 | Direct | |
| Feb 26, 2026 | Common Stock | SSaleDisposed | −2,589 | $663.04F13 | −$1,716,610.56 | 83,606.3 | Direct | |
| Feb 27, 2026 | Common Stock | MOption exerciseAcquired | +197 | $505.53 | +$99,589.41 | 83,803.3 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Feb 26, 2026 | Common Stock | MOption exerciseDisposed | −23,326 | $0.00 | $0 | 0 | Direct | |
| Feb 27, 2026 | Common Stock | MOption exerciseDisposed | −197 | $0.00 | $0 | 0 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F1
Represents the weighted average price of the shares sold ranging from a low of $650.00 to a high of $650.96 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F2
Represents the weighted average price of the shares sold ranging from a low of $651.06 to a high of $651.85 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F3
Represents the weighted average price of the shares sold ranging from a low of $652.105 to a high of $653.06 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F4
Represents the weighted average price of the shares sold ranging from a low of $653.19 to a high of $654.155 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F5
Represents the weighted average price of the shares sold ranging from a low of $654.24 to a high of $655.2175 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F6
Represents the weighted average price of the shares sold ranging from a low of $655.275 to a high of $656.205 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F7
Represents the weighted average price of the shares sold ranging from a low of $656.28 to a high of $657.27 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F8
Represents the weighted average price of the shares sold ranging from a low of $657.305 to a high of $658.275 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F9
Represents the weighted average price of the shares sold ranging from a low of $658.30 to a high of $659.24 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F10
Represents the weighted average price of the shares sold ranging from a low of $659.31 to a high of $660.275 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F11
Represents the weighted average price of the shares sold ranging from a low of $660.59 to a high of $661.55 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F12
Represents the weighted average price of the shares sold ranging from a low of $661.65 to a high of $662.55 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.
- F13
Represents the weighted average price of the shares sold ranging from a low of $662.72 to a high of $663.505 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.
Referenced by the price of 1 transaction in Table I.