Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON)
CUSIP: 254604101
Q4 2022 13F Holders as of 31 Dec 2022
- Type / Class
- Equity / Common Stock, $0.0001 par value per share
- Shares outstanding
- 37,778,373
- Total 13F shares
- 10,800,037
- Share change
- +10,189,549
- Total reported value
- $214,639,221
- Price per share
- $19.89
- Number of holders
- 30
- Value change
- +$202,496,221
- Number of buys
- 28
Quarterly Holders Quick Answers
What is CUSIP 254604101?
CUSIP 254604101 identifies IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share in SEC institutional holdings data.
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Jump to adjacent filing periods for faster comparison and easier crawl discovery.
- Newer quarter: Q1 2023
Recent filing periods for CUSIP 254604101:
Top shareholders of IRON - Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Braden M. Leonard |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
5,247,500
|
$354,993,375 | — | 26 Oct 2022 | |
| James B. Tananbaum |
3/4/5
|
Director, 10%+ Owner |
—
mixed-class rows
|
428,745
mixed-class rows
|
$27,837,975 | — | 04 Oct 2021 | |
| Atlas Venture Opportunity Fund II, L.P. |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
218,326
|
$14,769,754 | — | 29 Dec 2022 | |
| Brian Piekos |
3/4/5
|
CFO |
—
class O/S missing
|
17,615
|
$1,191,655 | — | 31 May 2022 | |
| Jason Patrick Meyenburg |
3/4/5
|
Chief Executive Officer, Director |
—
class O/S missing
|
123,600
|
— | — | 03 Jan 2022 | |
| Carl L. Gordon |
3/4/5
|
Director, 10%+ Owner |
—
class O/S missing
|
17,245
|
— | — | 04 Oct 2021 | |
| Jason P. Rhodes |
3/4/5
|
Director, 10%+ Owner |
—
class O/S missing
|
17,245
|
— | — | 04 Oct 2021 | |
| Tuyen Ong |
3/4/5
|
Director |
—
class O/S missing
|
15,528
|
— | — | 04 Oct 2021 | |
| Backstrom Jay T. |
3/4/5
|
Director |
—
class O/S missing
|
7,000
|
— | — | 29 Dec 2022 |
Institutional Holders of Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON) as of Q4 2022
As of 31 Dec 2022,
Disc Medicine, Inc. - Common Stock, $0.0001 par value per share (IRON) was held by
30 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
10,800,037 shares.
The largest 10 holders included
Atlas Venture Life Science Advisors, LLC, Novo Holdings A/S, ORBIMED ADVISORS LLC, 5AM Venture Management, LLC, BML Capital Management, LLC, ADAGE CAPITAL PARTNERS GP, L.L.C., Rock Springs Capital Management LP, Foresite Capital Management V, LLC, FMR LLC, and Nantahala Capital Management, LLC.
This page lists
30
institutional shareholders reporting positions in this security
for the Q4 2022 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q4 2022 vs Q4 2025 Across Filers
Q4 2025 holders
193
Q4 2022 holders
30
Holder diff
-163
| Investor | Q4 2025 Shares | Q4 2022 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q4 2022 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.