# EDGAR Filing Document

**Accession Number:** 0001104506
**File Stem:** 0001140361-25-021810
**Filing Date:** 2025-6
**Character Count:** 4793
**Document Hash:** 1170dff8b509763d06755c21708efbb9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001140361-25-021810.hdr.sgml**: 20250606

**ACCESSION NUMBER**: 0001140361-25-021810

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 12

**CONFORMED PERIOD OF REPORT**: 20250606

**ITEM INFORMATION**: Other Events

**FILED AS OF DATE**: 20250606

**DATE AS OF CHANGE**: 20250606

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** INSMED Inc
- **CENTRAL INDEX KEY:** 0001104506
- **STANDARD INDUSTRIAL CLASSIFICATION:** PHARMACEUTICAL PREPARATIONS [2834]
- **ORGANIZATION NAME:** 03 Life Sciences
- **EIN:** 541972729
- **STATE OF INCORPORATION:** VA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-30739
- **FILM NUMBER:** 251031875

**BUSINESS ADDRESS:**
- **STREET 1:** 700 US HIGHWAY 202/206
- **CITY:** BRIDGEWATER
- **STATE:** NJ
- **ZIP:** 08807
- **BUSINESS PHONE:** 908-977-9900

**MAIL ADDRESS:**
- **STREET 1:** 700 US HIGHWAY 202/206
- **CITY:** BRIDGEWATER
- **STATE:** NJ
- **ZIP:** 08807

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** INSMED INC
- **DATE OF NAME CHANGE:** 20000128

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### 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 6, 2025

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

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| | | |
|:---|:---|:---|
| **Virginia**<br>| **000-30739**<br>| **54-1972729**<br>|
| *(State or other jurisdiction of incorporation)* | *(Commission File Number)* | *(IRS Employer Identification No.)* |

---

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| | |
|:---|:---|
| **700 US Highway 202/206**<br>**Bridgewater, New Jersey** | **08807**<br>*(Zip Code)* |
| *(Address of principal executive offices)* |  |

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Registrant's telephone number, including area code: **(908) 977-9900**

#### Not Applicable
*(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 (see General Instruction A.2. below):

☐ 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 Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock, par value $0.01 per share<br>| INSM<br>| Nasdaq Global Select Market<br>|

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Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

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 8.01 - Other Events

On June 6, 2025 (the "Redemption Date"), Insmed Incorporated (the "Company") completed its previously announced redemption of all of the aggregate principal amount outstanding of its 0.75% Convertible Senior Notes due 2028 (the "Notes"). Outstanding Notes in the aggregate principal amount of $1,965,204.69 that had not already been converted by holders thereof were redeemed for cash at a redemption price equal to 100% of the principal amount of such Notes, plus accrued and unpaid interest on such Notes to, but excluding, the Redemption Date.

The redemption was effected pursuant to the terms of the Indenture, dated as of January 26, 2018, as supplemented by the Second Supplemental Indenture, dated as of May 13, 2021, between the Company and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association.

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#### 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.

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| | | |
|:---|:---|:---|
| Dated: June 6, 2025 | INSMED INCORPORATED | INSMED INCORPORATED |
|  | By: | /s/ Michael A. Smith |
|  | Name: | Michael A. Smith |
|  | Title: | Chief Legal Officer and Corporate Secretary |

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