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See how Context works →On the price, the facts of the public record■Insider buy□Insider sell◇Significant stake declared (13D)●Results filed
With an account, also○dividends▲splits◌next earningswith an account
End-of-day prices provided by Twelve Data · One close per session; the series does not update during the trading day.
Latest on record
The most recent facts, as filed.
Up to three of the most recent, checkable facts already loaded on this page, each linked to its source.
- Sep 11, 2026Reported sale · Form 4Kevin Bitterman · $1.9MOpen the filing ↗
- Sep 11, 2026Notice of sale · Form 144KEVIN J BITTERMAN · Officer · $1.9MOpen the filing ↗
- Sep 10, 2026Material event · 8-KFiled by the company itself.Open the filing ↗
In numbers
What this profile holds, counted.
Closes · 1 year250
SEC filings on record72928 flagged findings
Reported transactions (Form 4)80since Dec 15, 2025 · and 36 other holdings
Corporate events (8-K)30since Apr 5, 2022
What the record says
Description, identity and filings, each with its source.
Every block cites its source. The colour of a finding marks its category — which document, who filed it — not how much it matters.
Identity
Formerly traded as GMTX.
Regulatory history
Topics detected in its SEC reports, with the original excerpt.
Each topic is assigned by a classifier over the full filing; the excerpts show where it was detected and are not always enough to verify it. Open the filing to read it in full.
- 2026-05-05share offering or dilution eventrecentOpen filing ↗“…the Company’s common stock, at a purchase price of $ 22.9999 per pre-funded warrant, for aggregate net proceeds of $ 62.4 million,…”
+1 more passage from the same document
- “…the Company sold an aggregate of 1,488,166 shares of the Company’s common stock, at a purchase price of $ 23.00 per share, and with…”
- 2026-05-05export control restrictionsrecentOpen filing ↗“…could cause a disruption to the development of our product candidates.” In addition, the impact of geopolitical tension, such as a…”
- 2026-05-05regulatory investigationrecentOpen filing ↗“…civil or administrative sanctions or enforcement actions. We cannot ensure that our compliance controls, policies, and procedures…”
- 2026-05-05merger or acquisition eventrecentOpen filing ↗“…the affirmative defense conditions of Securities Exchange Act Rule 10b5-1(c) Adoption ( March 19, 2026 ) End Date ( December 31,…”
+1 more passage from the same document
- “…Company received an upfront payment of $ 0.2 million with additional consideration receivable upon the achievement of certain…”
- 2026-02-26share offering or dilution eventrecentOpen filing ↗“…of the Company’s common stock, at a purchase price of $ 22.9999 per pre-funded warrant, for aggregate net proceeds of $ 62.4 million,…”
+1 more passage from the same document
- “…the Company sold an aggregate of 1,488,166 shares of the Company’s common stock, at a purchase price of $ 23.00 per share, and with…”
- 2026-02-26export control restrictionsrecentOpen filing ↗“…affect our business and financial results and could cause a disruption to the development of our product candidates.” In…”
- 2026-02-26capital return (buybacks/dividends)recentOpen filing ↗“…stock options typically vested over a four-year period. The Board could have assigned vesting terms to the stock options grants as…”
+1 more passage from the same document
- “…stock restrictions related to the sale and transferability of the stock and lapsed over the defined vesting period in the…”
- 2026-02-26regulatory investigationrecentOpen filing ↗“…civil or administrative sanctions or enforcement actions. We cannot ensure that our compliance controls, policies, and procedures…”
3 older entries not shown
Original excerpts from SEC filings, untranslated. Not advice and not a prediction.
Reverse splits in 5 years
1 reverse split in 5 years (1:30 on Dec 30, 2022) · 1:30 cumulative
The other times: of 818 securities that did their first reverse split in 5 years, a year later the median was worth 0.53× the price on the day of the split; 382 lost more than half and 209 rose (809 with a price a year later).
Our own series, not the whole market: based on the splits we have on record (provider and SEC); an unrecorded one does not count. Historical distribution, not a prediction.
The 25 most recent filings (of 729)
Every SEC filing, newest first, with what it is. Below, each type with its own explanation.
- Sep 11, 26Form 144 ↗Notice of proposed sale
- Sep 10, 268-K ↗Current report · Communication to the market · Other events
- Sep 9, 26Form 4 ↗Insider transaction
Notice of proposed sale · 8 Form 144 filingsshow all 8hide
- Sep 4, 26Form 144 ↗Notice of proposed sale
- Sep 4, 26Form 144 ↗Notice of proposed sale
- Sep 4, 26Form 144 ↗Notice of proposed sale
- Sep 4, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 144 ↗Notice of proposed sale
- Sep 3, 26Form 4 ↗Insider transaction
Notice of proposed sale · 4 Form 144 filingsshow all 4hide
- Sep 2, 26Form 144 ↗Notice of proposed sale
- Sep 2, 26Form 144 ↗Notice of proposed sale
- Sep 2, 26Form 144 ↗Notice of proposed sale
- Sep 2, 26Form 144 ↗Notice of proposed sale
- Aug 17, 26Form 144 ↗Notice of proposed sale
- Aug 6, 26Form 144 ↗Notice of proposed sale
- Aug 6, 26SCHEDULE 13G/A ↗Passive stake · FMR LLC · 12.8% · event on Jun 30, 26 · amendment
729 filings on record, the oldest from Jul 24, 20.
Listing the 25 most recent filings of the 729 on record.
32721
- Jun 30, 26Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Feb 27, 26Restructuring plan with committed costs8-K 2.05 ↗
- Oct 22, 25Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Oct 6, 25A senior executive left or was appointed8-K 5.02 ↗
- Jul 14, 25A senior executive left or was appointed8-K 5.02 ↗
4 material agreements entered2024 – 2025show all 4hide
- Jan 24, 25Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Nov 15, 24Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Nov 8, 24Entered a material agreement+3 more in the same filing8-K 1.01 ↗
- Jun 14, 24Entered a material agreement+2 more in the same filing8-K 1.01 ↗
- Feb 7, 24A senior executive left or was appointed+2 more in the same filing8-K 5.02 ↗
- Dec 5, 23Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Oct 23, 23A senior executive left or was appointed+1 more in the same filing8-K 5.02 ↗
- Oct 10, 23Entered a material agreement+1 more in the same filing8-K 1.01 ↗
- Sep 29, 23A material agreement was terminated8-K 1.02 ↗
- Jun 16, 23Entered a material agreement+2 more in the same filing8-K 1.01 ↗
8 older filings not shown · The record reaches back to Aug 14, 20.
Stress disclosures older than the timeline above. They are individual events from the record, not a complete timeline: there may be more between them.
- Feb 28, 22Restructuring plan with committed costs+3 more in the same filing8-K 2.05 ↗
- Oct 6, 21Restructuring plan with committed costs+3 more in the same filing8-K 2.05 ↗
The full record holds 3 stress filings.
Corporate events are tracked from 2004-08-23, when the SEC renumbered 8-K items. Earlier filings use an incompatible numbering and are not classified here.
Schedule 13D: stake and stated purpose
Filed by holders above 5% of a share class who cannot use the short form. It includes the investor's stated purpose: read it before assuming they seek influence.
- AI DMI LLC8.0%Oct 20, 25SCHEDULE 13D/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
- ORBIMED ADVISORS LLC4.5%Mar 10, 25SCHEDULE 13D/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
- Atlas Venture Fund X, L.P.2.2%Dec 12, 25SCHEDULE 13D/A ↗12 co-filers on this document — the figure is the largest single stake, not their sum. · 1 earlier filing
Schedule 13G: short-form filing
The short form, for holders who meet specific requirements: institutional investors, passive investors without a control purpose, or exempt investors. Asset managers and index funds usually file it.
- FMR LLC12.8%Jun 30, 26SCHEDULE 13G/A ↗2 co-filers on this document — the figure is the largest single stake, not their sum. · 4 earlier filings
- RA Capital Management, L.P.5.9%Dec 30, 25SCHEDULE 13G ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
- Wellington Management Group LLP4.1%Jun 30, 25SCHEDULE 13G/A ↗3 co-filers on this document — the figure is the largest single stake, not their sum. · 2 earlier filings
- Paradigm BioCapital Advisors LP3.5%Mar 31, 25SCHEDULE 13G/A ↗4 co-filers on this document — the figure is the largest single stake, not their sum.
- Bain Capital Life Sciences Opportunities III, LP3.3%Dec 31, 24SCHEDULE 13G/A ↗
show one more holderhide
- Frazier Life Sciences Public Fund, L.P.3.0%Jun 30, 25SCHEDULE 13G/A ↗17 co-filers on this document — the figure is the largest single stake, not their sum.
Structured 13D/G data starts 2023-12, when the SEC moved these filings to a machine-readable format. Earlier filings exist but are not parsed here.
Sale intention announced
On Sep 11, KEVIN J BITTERMAN filed notice of intent to sell up to $1.9M. That is about 0.07% of shares outstanding.
A notice is not a sale: it may not go ahead, may happen in part, or at a different price.
After the notice, they sold $1.9M on Sep 11, per their Form 4. That is 100% of the shares announced so far, and the window is still open.
View notice (Form 144) ↗+9 more recent notices
- Sep 11, 26Sell$1.9MKevin Bitterman↗
- Sep 4, 26Sell$73KKevin Bitterman↗
- Sep 4, 26Sell$61KKevin Bitterman↗
- Sep 4, 26Sell$1KKevin Bitterman↗
- Sep 3, 26Sell$225KKevin Bitterman↗
- Sep 3, 26Sell$187KKevin Bitterman↗
- Sep 3, 26Sell$4KKevin Bitterman↗
- Sep 2, 26Sell$2.1MKevin Bitterman↗
- Sep 2, 26Sell$1.8MKevin Bitterman↗
- Sep 2, 26Sell$41KKevin Bitterman↗
- Sep 2, 26Sell$810Kevin Bitterman↗
- Sep 2, 26Sell$729Kevin Bitterman↗
There are 15 more transactions in this stretch.
Stock compensation, tax and giftsshow the 13 other transactionshide
Stock compensation, tax withholding, option exercises and gifts. They are listed separately and are not included in the purchase and sale totals. The type describes the transaction, not the filer's intent.
- Sep 15, 26Compensation$36KJohn D QuiselChief Executive Officer↗
- Sep 11, 26Compensation$326KKevin Bitterman↗
- Sep 11, 26Compensation$389KKevin Bitterman↗
- Sep 11, 26Compensation$509KKevin Bitterman↗
- Aug 25, 26Compensation$119KJonathan Yen-Wen YuChief Operating Officer↗
- Aug 24, 26Compensation$4KJonathan Yen-Wen YuChief Operating Officer↗
- Aug 17, 26Compensation$446KJohn D QuiselChief Executive Officer↗
- Aug 12, 26Compensation$11KJonathan Yen-Wen YuChief Operating Officer↗
- Aug 6, 26Compensation$73KRahul KharaChief Legal Officer↗
- Jul 13, 26Compensation$252KJohn D QuiselChief Executive Officer↗
- Jul 13, 26Compensation$100KJohn D QuiselChief Executive Officer↗
- Jul 7, 26Compensation$1KJonathan Yen-Wen YuChief Operating Officer↗
- Jun 29, 26Compensation$24KRahul KharaChief Legal Officer↗
The full record holds 461 transactions and goes back to Dec 29, 22.
Its sector and its market
Disc Medicine Inc. among Health Care companies
The profile shows what is on record. Context and Radar place the company among those of its sector and region.
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- 250 clean closes in the period.
- SEC records
- 729 documents on file, from Jul 24, 2020 to Sep 16, 2026.
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Which SEC documents appear here?
Those filed with the SEC by the company, its insiders and its major shareholders, within our coverage: periodic reports (10-K, 10-Q, 20-F), material events (8-K), proposed sale notices (Form 144), insider transactions (Form 4) and stakes above 5% (13D/13G). Each links to the original on EDGAR.
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It depends on the company: some European issuers file a 20-F or 6-K with the SEC and others don't. The profile shows whatever is on record; when there is nothing, it says so rather than guessing why. Europe does not yet have a common filing archive like EDGAR in the United States. The EU will open its own, ESAP, in July 2027 (managers' transactions arrive in January 2028), and we plan to add it once it is available.
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