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Filing Details

Accession Number:: 0001209191-23-058708
Form Type:: 4
Zero Holdings:: No
Publication Time:: 2023-12-14 20:14:42
Reporting Period:: 2023-12-12

Accepted Time:: 2023-12-14 20:14:42
SEC Url:: Form 4 Filing

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1816736	Disc Medicine Inc.	IRON	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1591747	Kevin Bitterman	C/O Disc Medicine, Inc. 321 Arsenal Street, Suite 101 Watertown MA 02472		Yes	No	No	No

Reported Non-Derivative Transactions

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Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2023-12-12	20,823	$59.87	861,401	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	422	$60.99	860,979	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	4,155	$62.42	856,824	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	665	$62.90	856,159	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	688	$63.78	855,471	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	18,615	$65.10	836,856	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-12	6,599	$65.77	830,257	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-13	3,508	$59.99	826,749	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-13	40	$60.50	826,709	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-14	20,429	$58.27	806,280	No	4	S	Indirect	See footnote
Common Stock	Disposition	2023-12-14	120	$59.74	806,160	No	4	S	Indirect	See footnote

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote
No	4	S	Indirect	See footnote

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	218,326	Indirect	See footnote
Common Stock	51,000	Indirect	See footnote

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.50 to $60.497 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (3), (4), (5), (6), (7), (8), (9), (10) and (11).
These shares are held by Atlas Venture Opportunity 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.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.51 to $61.50 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.5297 to $62.5175 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.6436 to $63.3256 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.70 to $64.67 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.7499 to $65.735 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.745 to $66.32 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.50 to $60.4381 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $58.25 to $58.65 inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $59.53 to $60.17 inclusive.
These shares are held by Atlas Venture Opportunity II, LP ("Opportunity II"). The general partner of Opportunity II is Atlas Venture Associates Opportunity II, LP ("Associates II"). Atlas Venture Associates Opportunity II, LLC ("Associates II LLC") is the general partner of Associates II. The Reporting Person is a member of Associates II LLC and disclaims beneficial ownership of such securities held by Opportunity II, except to the extent of his pecuniary interest therein, if any.
These shares are held by Atlas Venture Fund XII, L.P. ("Atlas XII"). The general partner of Atlas XII is Atlas Venture Associates XII, L.P. ("Associates XII"). Atlas Venture Associates XII, LLC ("Associates XII LLC") is the general partner of Associates XII. The Reporting Person is a member of Associates XII LLC and disclaims beneficial ownership of such securities held by Atlas XII, except to the extent of his pecuniary interest therein, if any.