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Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (54 ops.)
Latest filing published 02 Oct 2026 for INSULET CORP, €16k.
Filing timeline
BuySaleJonathan Jay Mazelsky
Insider track record
Disclosed buys
0
Disclosed sells
54
Signal history
Jonathan Jay Mazelsky: trading record in brief
Jonathan Jay Mazelsky has filed trades across 3 companies (mainly through SEC (Form 4)), most often in Idexx Laboratories INC /de, DENTSPLY SIRONA Inc. and Insulet Corp. We count 136 filings; the first trade dates from 15 January 2020 and the latest from 30 September 2026.
Sales make up the whole of the open-market record (54 sales, €39.3M). Outside the open market, there are 27 share grants and 49 option exercises.
The latest filing, published on 2 October 2026, reports a share grant of €16k in Insulet Corp. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Jonathan Jay Mazelsky
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations135 total
141 shares@ US$130.470.0002% mcap100.0% of flowCommon StockSEC:0001145197-26-000184:0
10,000 sharesCommon StockSEC:0000818479-26-000210:0
22,822 shares0Common StockSEC:0000818479-26-000188:0
23,326 shares@ US$141.6023.4% of flowCommon StockSEC:0000874716-26-000043:0
958 shares0Common StockSEC:0000874716-26-000024:0
395.158 shares0Common StockSEC:0000818479-26-000035:0
359.576 shares0Common StockSEC:0000818479-25-000215:0
1,051 shares0Common StockSEC:0000874716-25-000152:0
183 shares@ US$598.4880.8% of flowCommon StockSEC:0000874716-25-000134:0
29,260 shares@ US$67.8514.2% of flowCommon StockSEC:0000874716-25-000126:0
279.347 shares0Common StockSEC:0000818479-25-000129:0
13,880 shares0Common StockSEC:0001127602-25-015713:0
147.727 shares0Common StockSEC:0001127602-25-012078:0
689 shares0Common StockSEC:0000874716-25-000027:0
115.474 shares0Common StockSEC:0001127602-25-001224:0
80.378 shares0Common StockSEC:0001127602-24-025512:0
170 shares@ US$455.08Common StockSEC:0000874716-24-000122:1
384 shares0Common StockSEC:0000874716-24-000122:0
86.725 shares0Common StockSEC:0001127602-24-020398:0
7,994 shares0Common StockSEC:0001127602-24-016577:0
26.426 shares0Common StockSEC:0001127602-24-012906:0
550 shares0Common StockSEC:0000874716-24-000061:0
483 shares@ US$206.940.8% of flowCommon StockSEC:0000874716-24-000058:0
974 shares0Common StockSEC:0000874716-24-000039:1
689 shares0Common StockSEC:0000874716-24-000039:2
25 of 135 declarations
