JPMorgan Chase & Co. (INSM) reports 10.37M Insmed shares, a 4.7% stake

Rhea-AI Filing Summary

JPMorgan Chase & Co. reports beneficial ownership of common stock of Insmed Incorporated. The firm holds 10,365,622 shares beneficially owned, representing 4.7% of the class. JPMorgan reports sole voting power over 9,988,182 shares and shared voting power over 14,547 shares.

It also reports sole dispositive power over 10,353,378 shares and shared dispositive power over 11,624 shares. Several JPMorgan subsidiaries, including J.P. Morgan Securities LLC and JPMorgan Chase Bank, National Association, are identified as entities through which these holdings are maintained.

Key Figures

Beneficial ownership: 10,365,622 shares Percent of class: 4.7% Sole voting power: 9,988,182 shares +3 more

6 metrics

Beneficial ownership 10,365,622 shares Insmed common stock beneficially owned by JPMorgan Chase & Co.

Percent of class 4.7% Percentage of Insmed common stock class reported as beneficially owned

Sole voting power 9,988,182 shares Shares of Insmed over which JPMorgan has sole power to vote

Shared voting power 14,547 shares Shares of Insmed over which JPMorgan has shared power to vote

Sole dispositive power 10,353,378 shares Shares of Insmed over which JPMorgan has sole dispositive power

Shared dispositive power 11,624 shares Shares of Insmed over which JPMorgan has shared dispositive power

Key Terms

beneficially owned, Sole Voting Power, Shared Voting Power, Sole Dispositive Power, +2 more

6 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 10365622"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole Voting Power financial

"5 | Sole Voting Power 9,988,182.00 6 | Shared Voting Power"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

Shared Voting Power financial

"6 | Shared Voting Power 14,547.00 7 | Sole Dispositive Power"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

Sole Dispositive Power financial

"7 | Sole Dispositive Power 10,353,378.00 8 | Shared Dispositive Power"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Shared Dispositive Power financial

"8 | Shared Dispositive Power 11,624.00 9 10,365,622.00"

Ownership of 5 Percent or Less of a Class regulatory

"Item 5. | Ownership of 5 Percent or Less of a Class."

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/22/2026 - 01:39 PM Accepted by SEC EDGAR 07/22/2026 - 01:39 PM Learn about SEC filing dates

FAQ

What percentage of Insmed (INSM) does JPMorgan Chase & Co. report owning?

JPMorgan Chase & Co. reports beneficial ownership of 4.7% of Insmed’s common stock class. This percentage reflects 10,365,622 shares of common stock reported as beneficially owned in the Schedule 13G/A amendment.

How many Insmed (INSM) shares does JPMorgan Chase & Co. beneficially own?

JPMorgan Chase & Co. reports beneficial ownership of 10,365,622 Insmed common shares. This total includes shares over which it has varying levels of voting and dispositive power through its affiliates.

What voting power does JPMorgan have over Insmed (INSM) shares?

JPMorgan reports sole voting power over 9,988,182 shares and shared voting power over 14,547 shares of Insmed common stock. These figures indicate how many shares it can vote or direct the voting of.

What dispositive power does JPMorgan hold over Insmed (INSM) stock?

JPMorgan reports sole dispositive power over 10,353,378 Insmed shares and shared dispositive power over 11,624 shares. Dispositive power reflects its ability to dispose of or direct the disposition of these shares.

Which JPMorgan subsidiaries are involved in the Insmed (INSM) holdings?

The filing lists several entities, including J.P. Morgan Securities LLC, JPMorgan Chase Bank, National Association, J.P. Morgan Trust Company of Delaware, and others as subsidiaries through which the Insmed holdings are maintained.

Is JPMorgan reporting ownership above or below 5% of Insmed (INSM)?

JPMorgan reports ownership of 4.7% of Insmed’s common stock, which is 5 percent or less of the class. The filing includes an item noting ownership of 5 percent or less of the class.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

INSMED INCORPORATED

(Name of Issuer)

Common stock, par value $0.01 per share

(Title of Class of Securities)

457669307

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 457669307

1

Names of Reporting Persons

JPMORGAN CHASE & CO.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 9,988,182.00
6	Shared Voting Power 14,547.00
7	Sole Dispositive Power 10,353,378.00
8	Shared Dispositive Power 11,624.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10,365,622.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

4.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: INSMED INCORPORATED
(b)	Address of issuer's principal executive offices: 700 US Highway 202/206 Bridgewater NJ 08807
Item 2.
(a)	Name of person filing: JPMORGAN CHASE & CO.
(b)	Address or principal business office or, if none, residence: 270 Park Avenue,,New York, NY 10017
(c)	Citizenship: DE
(d)	Title of class of securities: Common stock, par value $0.01 per share
(e)	CUSIP No.: 457669307
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 10365622
(b)	Percent of class: 4.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 9988182
	(ii) Shared power to vote or to direct the vote: 14547
	(iii) Sole power to dispose or to direct the disposition of: 10353378
	(iv) Shared power to dispose or to direct the disposition of: 11624
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. J.P. Morgan Trust Company of Delaware; J.P. Morgan Securities LLC; JPMorgan Chase Bank, National Association; JPMorgan Asset Management (UK) Limited; J.P. MORGAN SE; J.P. Morgan (Suisse) SA; J.P. Morgan Investment Management Inc.; J.P. Morgan Wealth Management Solutions Inc.; 55I, LLC
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. Not Applicable
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

JPMORGAN CHASE & CO.

Signature:	Rachel Tsvaygoft
Name/Title:	Vice President
Date:	07/22/2026