# EDGAR Filing Document

**Accession Number:** 0001783183
**File Stem:** 0001193125-26-234379
**Filing Date:** 2026-5
**Character Count:** 5974
**Document Hash:** af3a4b3266d8f6cd1b3dad7ca3650986
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-234379.hdr.sgml**: 20260521

**ACCESSION NUMBER**: 0001193125-26-234379

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 11

**CONFORMED PERIOD OF REPORT**: 20260519

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

**FILED AS OF DATE**: 20260521

**DATE AS OF CHANGE**: 20260521

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Phathom Pharmaceuticals, Inc.
- **CENTRAL INDEX KEY:** 0001783183
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 824151574
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39094
- **FILM NUMBER:** 261008235

**BUSINESS ADDRESS:**
- **STREET 1:** 100 CAMPUS DRIVE,
- **STREET 2:** SUITE 102
- **CITY:** FLORHAM PARK
- **STATE:** NJ
- **ZIP:** 07932
- **BUSINESS PHONE:** (877) 742-8466

**MAIL ADDRESS:**
- **STREET 1:** 100 CAMPUS DRIVE,
- **STREET 2:** SUITE 102
- **CITY:** FLORHAM PARK
- **STATE:** NJ
- **ZIP:** 07932

?xml version='1.0' encoding='ASCII'? 8-K

### 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): May 19, 2026

## PHATHOM PHARMACEUTICALS, INC.

#### (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Delaware** | **001-39094** | **82-4151574** |
| **(State or other jurisdiction<br>of incorporation or organization)** | **(Commission<br>File Number)** | **(I.R.S. Employer<br>Identification No.)** |

---

#### 100 Campus Drive, Suite 102

#### Florham Park, New Jersey 07932

#### (Address of principal executive offices) (Zip Code)
(877) 742-8466

#### (Registrant's telephone number, include area code)

#### 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:

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading<br>Symbol(s)** | **Name of each exchange<br>on which registered** |
| Common Stock, par value $0.0001 per share | PHAT | The Nasdaq Global Select 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 May 19, 2026, Phathom Pharmaceuticals, Inc. (the "Company") held its 2026 Annual Meeting of Stockholders (the "Annual Meeting"). At the Annual Meeting, stockholders voted on the matters disclosed in the Company's definitive Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on April 7, 2026 (the "Proxy Statement"). The final voting results for the matters submitted to a vote of stockholders were as follows:

#### Proposal No. 1 - Election of Class I Directors
At the Annual Meeting, the Company's stockholders elected the persons listed below as Class I directors for a three-year term expiring at the Company's 2029 Annual Meeting of Stockholders or until their respective successors are duly elected and qualified:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Directors** | **Votes For** | **Votes For** | **Withheld** | **Withheld** | **Broker Non-Votes** | **Broker Non-Votes** |
|  Steven Basta |  | 42656800 |  | 4490781 |  | 17487652 |
|  Theodore R. Schroeder |  | 42578532 |  | 4569049 |  | 17487652 |
|  Mark Stenhouse |  | 41249990 |  | 5897591 |  | 17487652 |

---

#### Proposal No. 2 - Ratification of Independent Registered Public Accounting Firm
The Company's stockholders ratified the appointment of Ernst & Young LLP as the Company's independent registered public accounting firm for fiscal 2026:

---

| | | |
|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** |
|  64,482,757 | 49661 | 102815 |

---

#### Proposal No. 3 – Approval of the Compensation of the Named Executive Officers ("say-on-pay")
The Company's stockholders voted and approved, on a non-binding, advisory basis, the compensation of the named executive officers:

---

| | | | |
|:---|:---|:---|:---|
| **Votes For** | **Votes Against** | **Abstentions** | **Broker Non-Votes** |
|  44,449,761 | 2532145 | 165675 | 17487652 |

---

No other matters were considered or voted upon at the Annual Meeting.

------

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

---

| | | |
|:---|:---|:---|
|  | PHATHOM PHARMACEUTICALS, INC. | PHATHOM PHARMACEUTICALS, INC. |
| Date: May 21, 2026 | By: | /s/ Anne Marie Cook |
|  |  | Anne Marie Cook |
|  |  | Chief Legal Officer and Secretary |

---