Michael J. Rossi

Mirion Technologies, Inc.Y-mAbs Therapeutics, Inc.

Insider activity · 24 months0 buys1 saleCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 1 saleApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Companies

▲ Purchases (0 ops.)

—

▼ Sales (1 ops.)

€19k

Latest filing published 18 Sept 2025 for Y-mAbs Therapeutics, Inc., €58k.

Filing timeline

BuySale

Michael J. Rossi

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Michael J. Rossi: trading record in brief

Michael J. Rossi has filed trades across 2 companies (mainly through SEC (Form 4)), most often in Y-mAbs Therapeutics, Inc. and Mirion Technologies, Inc. The record holds 8 filings, for trades running from 1 November 2022 to 16 September 2025.

Every open-market trade on record is a sale: 1 sale worth €19k. Other entries cover 5 share grants. 2025 to date brings no purchases and 1 sale.

The latest filing, published on 18 September 2025, reports a transaction in Y-mAbs Therapeutics, Inc. Filings reach the SEC (Form 4) feed a median of 2 days after the trade. Section 16 rules allow two business days to file each Form 4. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.