Skip to main content

Grey Michael G

In the past year, 3 open-market sale filings worth $11.1M and no purchases.

Current role at each company

Open-market trades in the past year

Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.

Bought
–
0 filings
Sold
$11.1M
3 filings
Net
−$11.1M
Bought minus sold
Companies
1
With open-market trades

Trades

Every Form 4 that lists Grey Michael G as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.

MIRM Mirum Pharmaceuticals, Inc.

Director6 trades

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 23, 2025 (view filing)Dec 194 daysGrey Michael GDirectorSSale−50.0K$78.00−$3.90M−100.0%0 after10b5-1
Dec 2, 2025 (view filing)Dec 11 dayGrey Michael GDirectorSSale−50.0K$74.00−$3.70M−100.0%0 after10b5-1
Nov 25, 2025 (view filing)Nov 214 daysGrey Michael GDirectorSSale−50.0K$70.00−$3.50M−100.0%0 after10b5-1
Sep 14, 2023 (view filing)Sep 13-141 dayGrey Michael GDirectorSSale−14.6K$32.00−$467.5K−100.0%0 after2 lots
Jun 9, 2023 (view filing)Jun 81 dayGrey Michael GDirectorSSale−14.6K$29.00−$423.6K−100.0%0 after10b5-1
May 4, 2023 (view filing)May 31 dayGrey Michael GDirectorSSale−14.6K$28.00−$409.0K−100.0%0 after10b5-1

HZNP Horizon Therapeutics Public Ltd Co

Director1 trade

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 23, 2021 (view filing)Jul 221 dayGrey Michael GDirectorSSale−5.00K$100.04−$500.2K−100.0%0 after2 lots