As of November 6, 2026, Milestone Pharmaceuticals Inc. is a publicly traded company (Nasdaq: MIST); its largest reported holder is RTW Investments, with 9.9% on Schedule 13G/A of May 15, 2026, then Propel Bio Management, LLC (9.9%). The largest insider holding is Joseph Oliveto, the chief executive and president, with 446,244 shares (0.36% of shares outstanding), per Form 4 of April 20, 2026 (Schedule 13G/A, May 15, 2026).
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Is Milestone Pharmaceuticals Inc. a real, registered company?
- Milestone Pharmaceuticals Inc. files with the SEC under CIK 1408443 (its SEC filings).
- Its shares are listed under the ticker MIST on Nasdaq (SEC company record).
- Incorporated in A8; business address in Montreal, A8, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Milestone Pharmaceuticals Inc. in our court records and SEC 8-K records (as of 2026-11-06).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Pavaki Capital Management LLC (filed 2026-08-07).
Who are Milestone Pharmaceuticals Inc.'s owners and officers?
Milestone Pharmaceuticals Inc.: business address in Montreal, A8; industry Pharmaceutical Preparations (Schedule 13G, 2026-08-07).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-08-07 | Pavaki Capital Management LLC | 7.3% |
| Schedule 13G/A, 2026-05-15 | Rtw Investments, LP | 9.9% |
| Schedule 13G/A, 2026-05-13 | Adage Capital Management, L.P. | 6.37% |
| Schedule 13G/A, 2026-03-26 | Trails Edge Capital Partners, LP | 4.3% |
| Schedule 13G, 2025-12-23 | Propel Bio Management, LLC | 9.9% |
| Schedule 13G/A, 2025-11-14 | Rtw Investments, LP | 9.9% |
| Schedule 13G/A, 2025-11-14 | Trails Edge Capital Partners, LP | 9.9% |
| Schedule 13G, 2025-11-13 | Adage Capital Management, L.P. | 9.99% |
| Schedule 13G, 2025-07-21 | Trails Edge Capital Partners, LP | 9.9% |
Questions about who owns Milestone Pharmaceuticals Inc.
Who owns Milestone Pharmaceuticals Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of Milestone Pharmaceuticals Inc.: Rtw Investments, LP (9.9%, Schedule 13G/A, filed 2026-05-15), Propel Bio Management, LLC (9.9%, Schedule 13G, filed 2025-12-23), Pavaki Capital Management LLC (7.3%, Schedule 13G, filed 2026-08-07) and Adage Capital Management, L.P. (6.37%, Schedule 13G/A, filed 2026-05-13).
Who are the largest shareholders of Milestone Pharmaceuticals Inc.?
By the share each holder's latest filing reports, the largest holders of Milestone Pharmaceuticals Inc. on this page are Rtw Investments, LP (9.9%), Propel Bio Management, LLC (9.9%) and Pavaki Capital Management LLC (7.3%).
When did Rtw Investments, LP buy into Milestone Pharmaceuticals Inc.?
The filings give report dates, not purchase dates. The earliest filing from Rtw Investments, LP on this page is the Schedule 13G/A, filed 2025-11-14, reporting 9.9%; its latest, Schedule 13G/A filed 2026-05-15, reports 9.9%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 9 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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What the Full Report on Milestone Pharmaceuticals Inc. covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
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Which insiders own Milestone Pharmaceuticals Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and president: 446,244 shares (0.36% of shares outstanding) (Form 4, 2026-04-20).
- , the chief commercial officer: 205,406 shares (0.16% of shares outstanding) (Form 4, 2026-01-28).
- , the chief medical officer: 113,181 shares (0.09% of shares outstanding) (Form 4, 2026-01-28).
- , a director: 100,000 shares (0.08% of shares outstanding) (Form 4, 2025-07-15).
- , the chief financial officer and executive vice president of corp. development: 99,848 shares (0.08% of shares outstanding) (Form 4, 2026-01-28).
Shares outstanding: 124,497,980 as of 2026-08-12, from the company's latest SEC cover page.
How much has Milestone Pharmaceuticals Inc. raised?
No fundraising or offering filing from Milestone Pharmaceuticals Inc. is on file with us.
Keep reading
More on Milestone Pharmaceuticals Inc. and the records around it.
Milestone Pharmaceuticals Inc. elsewhere on the record
- 5%+ stake filings Aug 2026
Companies that share a holder
- Propel Bio Management, LLC also filed stake reports on 1 other company: Applied Therapeutics, Inc. (Dec 2025)
- Trails Edge Capital Partners, LP also filed stake reports on 16 other companies: Avalo Therapeutics, Inc. (Oct 2026), Sol-Gel Technologies Ltd. (Oct 2026), Contineum Therapeutics, Inc. (Oct 2026)
- RTW Investments, LP also filed stake reports on 43 other companies: CG Oncology, Inc. (Aug 2026), iRhythm Holdings, Inc. (Aug 2026), Kailera Therapeutics, Inc. (Aug 2026)
Related pages
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