# EDGAR Filing Document

**Accession Number:** 0001649904
**File Stem:** 0001628280-26-045569
**Filing Date:** 2026-6
**Character Count:** 6341
**Document Hash:** 91be78c4280d9d5dcfda199dc4e29af0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-045569.hdr.sgml**: 20260625

**ACCESSION NUMBER**: 0001628280-26-045569

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260624

**ITEM INFORMATION**: Submission of Matters to a Vote of Security Holders

**FILED AS OF DATE**: 20260625

**DATE AS OF CHANGE**: 20260625

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RHYTHM PHARMACEUTICALS, INC.
- **CENTRAL INDEX KEY:** 0001649904
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 462159271
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38223
- **FILM NUMBER:** 261122610

**BUSINESS ADDRESS:**
- **STREET 1:** 222 BERKELEY STREET
- **STREET 2:** 12TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116
- **BUSINESS PHONE:** 857-264-4280

**MAIL ADDRESS:**
- **STREET 1:** 222 BERKELEY STREET
- **STREET 2:** 12TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02116

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RHYTHM METABOLIC, INC.
- **DATE OF NAME CHANGE:** 20150803

?xml version='1.0' encoding='ASCII'? rytm-20260624

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d)**

of **the Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): June 24, 2026

**RHYTHM PHARMACEUTICALS, INC.**

(Exact name of registrant as specified in its charter)

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| | | |
|:---|:---|:---|
| **Delaware** | **001-38223** | **46-2159271** |
| (State or other jurisdiction<br>of incorporation) | (Commission<br>File Number) | (IRS Employer<br>Identification Number) |

---

**222 Berkeley Street**

**12th Floor**

**Boston, MA 02116**

(Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: **(857) 264-4280**

**N/A**

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| Title of each class | Trading<br>Symbol(s) | Name of each exchange on which registered |
| Common Stock, $0.001 par value per share | RYTM | The Nasdaq Stock Market LLC (Nasdaq Global Market) |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 5.07. Submission of Matters to a Vote of Security Holders.**

On June 24, 2026, Rhythm Pharmaceuticals, Inc. (the "Company") held its Annual Meeting of Stockholders (the "Annual Meeting"). At the close of business on the April 27, 2026 record date (the "Record Date") for the Annual Meeting, there were (i) 68,530,107 shares of the Company's common stock outstanding, of which each share of common stock was entitled to one vote; and (ii) 115,000 shares of the Company's Series A convertible preferred stock ("Convertible Preferred Stock") outstanding, of which 55,000 shares were entitled to vote, each share of Convertible Preferred Stock being entitled to a number of votes equal to 20.8333 shares of common stock per $1,000 liquidation preference of Series A convertible preferred stock (or 1,145,831 total votes). As a result, there were a total of 69,675,938 eligible votes as of the record date. A total of 64,146,146 votes were present online or represented by proxy at the Annual Meeting, representing approximately 92% of the total eligible votes as of the Record Date. The following are the voting results for the proposals considered and voted upon at the meeting, all of which were described in the Definitive Proxy Statement.

Item 1 - Election of two Class III Directors to serve until the 2029 Annual Meeting of Stockholders, and until their respective successors have been duly elected and qualified.

---

| | | | |
|:---|:---|:---|:---|
| NOMINEE | Votes FOR | Votes WITHHELD | Broker Non-Votes |
| David W. J. McGirr | 53,167,971 | 8,704,527 | 2,273,648 |
| David P. Meeker, MD | 59,961,848 | 1,910,650 | 2,273,648 |

---

Item 2 - Ratification of the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for the year ending December 31, 2026.

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| | | | |
|:---|:---|:---|:---|
| Votes FOR | Votes AGAINST | Votes ABSTAINED | Broker Non-Votes |
| 63,924,852 | 197,701 | 23,593 | 0 |

---

Item 3 - Approval, on an advisory (non-binding) basis, of the compensation of the Company's named executive officers.

---

| | | | |
|:---|:---|:---|:---|
| Votes FOR | Votes AGAINST | Votes ABSTAINED | Broker Non-Votes |
| 50,368,659 | 11,467,157 | 36,682 | 2,273,648 |

---

Based on the foregoing votes, David W. J. McGirr and David P. Meeker, MD were elected as Class III Directors, and Items 2 and 3 were approved.

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**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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| | | |
|:---|:---|:---|
| | **RHYTHM PHARMACEUTICALS, INC.** | **RHYTHM PHARMACEUTICALS, INC.** |
| Date: June 25, 2026 | By: | /s/ Hunter Smith |
|  |  | Hunter Smith |
|  |  | Chief Financial Officer |

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