Bitterman Kevin sold IRON

December 12, 2025 · Form 4 insider transaction

Bitterman Kevin sold 3,852 shares of Disc Medicine, Inc. at $92.58 per share, a transaction worth $356.6K. The trade was recorded as open-market sale and disclosed on an SEC Form 4, filed 4 days after the transaction.

Direction
Disposed (sell-side)
Shares
3,852
Price
$92.58
Total value
$356.6K
RoleDirector
SecurityCommon Stock
Transaction codeS: Open-market sale
Transaction dateDecember 12, 2025
Filing dateDecember 16, 2025
Shares owned after421,781
OwnershipIndirect
10b5-1 planNo
AmendedNo

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $92.52 to $93.3796 inclusive.; These shares are held by Atlas Venture Opportunity Fund I, LP ("Opportunity I"). The general partner of Opportunity I is Atlas Venture Associates Opportunity I, LP ("Associates I"). Atlas Venture Associates Opportunity I, LLC ("Associates I LLC") is the general partner of Associates I. The Reporting Person is a member of Associates I LLC and disclaims beneficial ownership of such securities held by Opportunity I, except to the extent of his pecuniary interest therein, if any.

View the original Form 4 on SEC EDGAR