Jonathan Jay MazelskyFiled
Executive Chair of the BoardExecutiveDirectorCIK 1556270
Net · 12 months
-$33M
Open-market buys − sales
Sold · 12 months
$33M
$17.7M in 90d · 41 sales on record
Bought · 12 months
$0
$0 in 90d · 0 buys on record
Under 10b5-1
0%
Share of sale value under a trading plan
Last trade
Nov 4, 2026
Filed Nov 5, 2026 · 90 rows
Monthly open-market value · 24 months Filed
- Bought (open market)
- Sold (open market)
Unusual activity Estimated
Whale score 92Whale watch
- 65Insider overlapPublic Mar 9, 2026 · traded Feb 24, 2026
Rep. Ro Khanna's dependent child bought IDXX 2 days before its Chair sold $2.4M
Details
- Politician
- Ro Khanna
- Ticker
- IDXX
- Asset
- IDEXX LABORATORIES CMN
- Tx type
- buy
- Traded
- Feb 24, 2026
- Filed
- Mar 9, 2026
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 13
- Owner type
- dependent
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2026-02-26","shares":3660,"price":658.9166,"value":2411634.76,"is_10b5_1":false,"filing_date":"2026-03-02"}
- Days between
- -2
- Opposite side
- Yes
- Public from
- Mar 9, 2026
- Method version
- 2026-11-03
- 50Insider overlapPublic Mar 2, 2026 · traded Jan 29, 2026
Rep. Ro Khanna's spouse sold IDXX 28 days before its Chair sold $2.4M
Details
- Politician
- Ro Khanna
- Ticker
- IDXX
- Asset
- IDEXXLABORATORIESCMN
- Tx type
- sell
- Traded
- Jan 29, 2026
- Filed
- Feb 6, 2026
- Amount low
- $15,001
- Amount high
- $50,000
- Range midpoint (estimate)
- $32,501
- Disclosed range
- $15,001 - $50,000
- Reporting lag days
- 8
- Owner type
- spouse
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2026-02-26","shares":3660,"price":658.9166,"value":2411634.76,"is_10b5_1":false,"filing_date":"2026-03-02"}
- Days between
- -28
- Opposite side
- No
- Public from
- Mar 2, 2026
- Method version
- 2026-11-03
- 65Insider overlapPublic Oct 7, 2025 · traded Sep 4, 2025
Rep. Byron Donalds's spouse bought IDXX 29 days after its Chair sold $4.6M
Details
- Politician
- Byron Donalds
- Ticker
- IDXX
- Asset
- IDEXX Laboratories, Inc. - Common Stock (IDXX)
- Tx type
- buy
- Traded
- Sep 4, 2025
- Filed
- Oct 7, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 33
- Owner type
- spouse
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- 29
- Opposite side
- Yes
- Public from
- Oct 7, 2025
- Method version
- 2026-11-03
- 65Insider overlapPublic Oct 7, 2025 · traded Sep 4, 2025
Rep. Byron Donalds bought IDXX 29 days after its Chair sold $4.6M
Details
- Politician
- Byron Donalds
- Ticker
- IDXX
- Asset
- IDEXX Laboratories, Inc. - Common Stock (IDXX)
- Tx type
- buy
- Traded
- Sep 4, 2025
- Filed
- Oct 7, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 33
- Owner type
- self
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- 29
- Opposite side
- Yes
- Public from
- Oct 7, 2025
- Method version
- 2026-11-03
- 50Insider overlapPublic Oct 3, 2025 · traded Sep 5, 2025
Rep. Ro Khanna's spouse sold IDXX 30 days after its Chair sold $4.6M
Details
- Politician
- Ro Khanna
- Ticker
- IDXX
- Asset
- IDEXX LABORATORIES CMN
- Tx type
- sell
- Traded
- Sep 5, 2025
- Filed
- Oct 3, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 28
- Owner type
- spouse
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- 30
- Opposite side
- No
- Public from
- Oct 3, 2025
- Method version
- 2026-11-03
- 65Insider overlapPublic Sep 9, 2025 · traded Aug 4, 2025
Rep. Ro Khanna's spouse bought IDXX 2 days before its Chair sold $4.6M
Details
- Politician
- Ro Khanna
- Ticker
- IDXX
- Asset
- IDEXX LABORATORIES CMN
- Tx type
- buy
- Traded
- Aug 4, 2025
- Filed
- Sep 9, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 36
- Owner type
- spouse
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- -2
- Opposite side
- Yes
- Public from
- Sep 9, 2025
- Method version
- 2026-11-03
- 50Insider overlapPublic Sep 2, 2025 · traded Aug 1, 2025
Rep. April McClain Delaney's dependent child partially sold IDXX 5 days before its Chair sold $4.6M
Details
- Politician
- April McClain Delaney
- Ticker
- IDXX
- Asset
- IDEXX Laboratories, Inc. - Common Stock (IDXX)
- Tx type
- partial_sale
- Traded
- Aug 1, 2025
- Filed
- Sep 2, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 32
- Owner type
- dependent
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- -5
- Opposite side
- No
- Public from
- Sep 2, 2025
- Method version
- 2026-11-03
- 50Insider overlapPublic Sep 2, 2025 · traded Aug 7, 2025
Rep. April McClain Delaney's dependent child partially sold IDXX 1 day after its Chair sold $4.6M
Details
- Politician
- April McClain Delaney
- Ticker
- IDXX
- Asset
- IDEXX Laboratories, Inc. - Common Stock (IDXX)
- Tx type
- partial_sale
- Traded
- Aug 7, 2025
- Filed
- Sep 2, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 26
- Owner type
- dependent
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- 1
- Opposite side
- No
- Public from
- Sep 2, 2025
- Method version
- 2026-11-03
- 50Insider overlapPublic Aug 8, 2025 · traded Jul 9, 2025
Rep. April McClain Delaney's dependent child partially sold IDXX 28 days before its Chair sold $4.6M
Details
- Politician
- April McClain Delaney
- Ticker
- IDXX
- Asset
- IDEXX Laboratories, Inc. - Common Stock (IDXX)
- Tx type
- partial_sale
- Traded
- Jul 9, 2025
- Filed
- Aug 5, 2025
- Amount low
- $1,001
- Amount high
- $15,000
- Range midpoint (estimate)
- $8,001
- Disclosed range
- $1,001 - $15,000
- Reporting lag days
- 27
- Owner type
- dependent
- Is whale
- No
- Insider trade
- {"insider":{"slug":"jonathan-jay-mazelsky","name":"Jonathan Jay Mazelsky","title":"Executive Chair of the Board","short_title":"Chair"},"company":"IDEXX LABORATORIES INC /DE","ticker":"IDXX","tx_kind":"open_market_sale","tx_date":"2025-08-06","shares":7299,"price":631.6065,"value":4610095.84,"is_10b5_1":false,"filing_date":"2025-08-08"}
- Days between
- -28
- Opposite side
- No
- Public from
- Aug 8, 2025
- Method version
- 2026-11-03
Transactions
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