DISC MEDICINE, INC.
DISC MEDICINE, INC. is a Public Limited Company registered in United States under 001533478, and its current status with Massachusetts Secretary of the Commonwealth is active. The company was incorporated on 21 September 2021 and lists its registered address as United States. 5 shareholders are on record for DISC MEDICINE, INC., including at least one natural person recorded as a direct holder; the filing carries no beneficial-ownership flag, so that holder is noted here as a recorded shareholder rather than a confirmed ultimate beneficial owner (UBO). This profile is sourced directly from Massachusetts Secretary of the Commonwealth and was last updated on 4 October 2026.
- Company fundamentals
- Corporate linkage & group structures
- Digitized company financials
- Firmographics — websites, social profiles, revenue and employee estimates
Shareholders
5
Five shareholders are currently on record for DISC MEDICINE, INC., reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing.
The largest of these is Atlas Venture Life Science Advisors, LLC , holding 8.1% — the largest recorded stake — followed by Vanguard Group Inc at 6.9%; the remaining 3 shareholders shown hold smaller stakes.
The register reports 9 shareholders in total, though only the top 5 by holding are shown in this view.
4 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.
| Shareholder | Type | Holding | Source Document |
|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | 8.1% | Massachusetts Secretary of the Commonwealth | |
| Vanguard Group Inc | 6.9% | Massachusetts Secretary of the Commonwealth | |
| Frazier Life Sciences Management, L.P. | 6% | Massachusetts Secretary of the Commonwealth | |
| Fidelity Rutland Square TRT II-Strategic Advisers Fidelity U.S. Total | 4.8% | Massachusetts Secretary of the Commonwealth | |
| iShares Trust-iShares Russell 2000 ETF | 2.5% | Massachusetts Secretary of the Commonwealth |
Officers
5
The Founder & Chair Of Scientific Advisory Board of DISC MEDICINE, INC. currently on record is Brian Macdonald Chb, Mb, Ph.d.; five officers are currently on record for DISC MEDICINE, INC., filed with Massachusetts Secretary of the Commonwealth.
The register reports 37 officers in total, including past appointments, though only the 5 most relevant records are shown here.
Management authority at DISC MEDICINE, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
The source filing doesn't specify representation authority — whether officers can act individually or must sign jointly to bind the company — so that detail isn't available here.
Group Structure
DISC MEDICINE, INC. has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 1 jurisdiction. Each of these downward relationships is derived rather than filed: resolved by matching entities across the registry network, not stated directly in a single document.
Those 3 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
DISC MEDICINE, INC.
United States
Get complete shareholder and officer records, ultimate beneficial owner resolution, and ongoing ownership monitoring.
Frequently Asked Questions
Who owns DISC MEDICINE, INC.?
Five shareholders are currently on record for DISC MEDICINE, INC., reflecting the stock ledger maintained under state corporate law (e.g. §219 of the Delaware General Corporation Law) rather than a public filing. The largest of these is Atlas Venture Life Science Advisors, LLC , holding 8.1% — the largest recorded stake — followed by Vanguard Group Inc at 6.9%; the remaining 3 shareholders shown hold smaller stakes. 4 shareholders shown are companies, so the ownership chain continues above this level for those holdings; the other 1 is recorded as direct individual holder, though the record carries no UBO/PSC flag confirming beneficial-owner status.
Who is DISC MEDICINE, INC.'s UBO (Ultimate Beneficial Owner)?
At least one shareholder recorded for DISC MEDICINE, INC. is a natural person. The record carries no dedicated UBO/PSC flag, so that holder is stated here as a recorded shareholder rather than a confirmed Ultimate Beneficial Owner (UBO).
How many shareholders does DISC MEDICINE, INC. have on record?
5 shareholders are shown on record for DISC MEDICINE, INC.. The register reports 9 in total; only the top 5 by holding are shown here.
What is DISC MEDICINE, INC.'s company registration number?
DISC MEDICINE, INC.'s registration number is 001533478, filed with Massachusetts Secretary of the Commonwealth in United States. Its current status on the register is active.
Is DISC MEDICINE, INC. still an active company?
DISC MEDICINE, INC.'s status on Massachusetts Secretary of the Commonwealth is listed as active.
When was DISC MEDICINE, INC. incorporated?
DISC MEDICINE, INC. was incorporated on 21 September 2021, according to Massachusetts Secretary of the Commonwealth.
What is DISC MEDICINE, INC.'s registered address?
The registered address on file for DISC MEDICINE, INC. is United States.
What legal structure is DISC MEDICINE, INC. registered as?
DISC MEDICINE, INC. is registered as a Public Limited Company in United States.
Who are the officers/directors of DISC MEDICINE, INC.?
The Founder & Chair Of Scientific Advisory Board of DISC MEDICINE, INC. currently on record is Brian Macdonald Chb, Mb, Ph.d.; five officers are currently on record for DISC MEDICINE, INC., filed with Massachusetts Secretary of the Commonwealth. Management authority at DISC MEDICINE, INC. sits with these individuals, not with shareholders, who are covered separately and hold ownership rather than control.
Does DISC MEDICINE, INC. have a parent company or subsidiaries?
DISC MEDICINE, INC. has no recorded parent company — it sits at the top of its own group structure, with 3 subsidiaries recorded beneath it across 1 jurisdiction. Those 3 subsidiaries span United States jurisdiction, though this list should not be read as complete — subsidiaries only become visible here where shareholder data has actually been filed with a register, so holdings in jurisdictions without that filing simply won't appear.
Can Zavia monitor changes to DISC MEDICINE, INC.'s ownership over time?
This profile reflects a point-in-time snapshot from Massachusetts Secretary of the Commonwealth. Zavia's monitoring API can track changes to DISC MEDICINE, INC.'s registered shareholders, officers, and group structure going forward, flagging updates as they're filed rather than requiring a manual recheck.
Can I access DISC MEDICINE, INC.'s data through an API?
Yes. Zavia's API connects directly to official government ownership registries across 195 countries and territories, including United States, so records like DISC MEDICINE, INC.'s registration, shareholder, UBO, and group-structure data can be queried programmatically instead of viewed one page at a time.
Where does this company information come from, and how current is it?
This record is sourced directly from Massachusetts Secretary of the Commonwealth and was last synced on 4 October 2026.