Collegium Pharmaceutical (COLL): Principal Global Investors discloses 5% equity stake

Rhea-AI Filing Summary

Principal Global Investors filed a Schedule 13G reporting a passive ownership position in Collegium Pharmaceutical, Inc. common stock. The firm reports beneficial ownership of 1,632,360 shares of common stock, par value $0.001 per share, representing 5% of the outstanding class.

Principal Global Investors has no sole voting or dispositive power over these shares but reports shared voting and shared dispositive power over 1,632,360 shares. The filing identifies Principal Global Investors as a Delaware entity, with its principal office in Des Moines, Iowa, and Collegium Pharmaceutical’s principal executive offices in Stoughton, Massachusetts.

Key Figures

Shares beneficially owned: 1,632,360 shares Percent of class: 5% Shared voting power: 1,632,360 shares +3 more

6 metrics

Shares beneficially owned 1,632,360 shares Common stock of Collegium Pharmaceutical, Inc.

Percent of class 5% Percentage of Collegium Pharmaceutical common stock class

Shared voting power 1,632,360 shares Shares over which Principal Global Investors has shared voting power

Shared dispositive power 1,632,360 shares Shares over which Principal Global Investors has shared dispositive power

Par value $0.001 per share Par value of Collegium Pharmaceutical common stock

Signature date 07/31/2026 Date the Schedule 13G was signed by Principal Global Investors

Key Terms

beneficially owned, shared voting power, shared dispositive power, Schedule 13G, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 1,632,360"

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.

shared voting power financial

"Shared Voting Power 1,632,360.00"

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.

shared dispositive power financial

"Shared Dispositive Power 1,632,360.00"

Schedule 13G regulatory

"form_type: "SCHEDULE 13G""

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

percent of class financial

"(b) | Percent of class: 5 %"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

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

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Available on EDGAR 08/05/2026 - 12:11 PM Accepted by SEC EDGAR 08/05/2026 - 12:10 PM Learn about SEC filing dates

FAQ

What stake in Collegium Pharmaceutical (COLL) does Principal Global Investors report?

Principal Global Investors reports beneficial ownership of 1,632,360 shares of Collegium Pharmaceutical common stock, representing 5% of the class, according to the Schedule 13G ownership disclosure.

Does Principal Global Investors have voting power over COLL shares?

Principal Global Investors reports 0 shares with sole voting power and 1,632,360 shares with shared voting power, indicating all reported voting authority is held on a shared basis.

What dispositive power over Collegium Pharmaceutical (COLL) shares is reported?

The filing states 0 shares with sole dispositive power and 1,632,360 shares with shared dispositive power, meaning Principal Global Investors’ ability to dispose of the shares is entirely shared.

What is the nature of Principal Global Investors’ ownership in COLL?

Principal Global Investors reports beneficial ownership of Collegium Pharmaceutical stock on a Schedule 13G, indicating a passive ownership filing, with 5% of the common stock class reported.

Where are Collegium Pharmaceutical (COLL) and Principal Global Investors based?

Collegium Pharmaceutical’s principal executive offices are at 100 Technology Center Drive, Stoughton, MA 02072. Principal Global Investors’ principal business office is at 711 High Street, Des Moines, Iowa 50392-0300.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

COLLEGIUM PHARMACEUTICAL, INC

(Name of Issuer)

Common stock, par value $0.001 per share

(Title of Class of Securities)

19459J104

(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): 19459J104

1

Names of Reporting Persons

PRINCIPAL GLOBAL INVESTORS

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 0.00
6	Shared Voting Power 1,632,360.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,632,360.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,632,360.00

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)

5 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: COLLEGIUM PHARMACEUTICAL, INC
(b)	Address of issuer's principal executive offices: 100 TECHNOLOGY CENTER DRIVE, STOUGHTON, MASSACHUSETTS 02072
Item 2.
(a)	Name of person filing: PRINCIPAL GLOBAL INVESTORS
(b)	Address or principal business office or, if none, residence: 711 HIGH STREET DES MOINES, Iowa 50392-0300
(c)	Citizenship: PRINCIPAL GLOBAL INVESTORS - DELAWARE
(d)	Title of class of securities: Common stock, par value $0.001 per share
(e)	CUSIP Number(s): 19459J104
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: 1,632,360
(b)	Percent of class: 5 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: PRINCIPAL GLOBAL INVESTORS - 0
	(ii) Shared power to vote or to direct the vote: PRINCIPAL GLOBAL INVESTORS - 1,632,360
	(iii) Sole power to dispose or to direct the disposition of: PRINCIPAL GLOBAL INVESTORS - 0
	(iv) Shared power to dispose or to direct the disposition of: PRINCIPAL GLOBAL INVESTORS - 1,632,360
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	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.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	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.

PRINCIPAL GLOBAL INVESTORS

Signature:	/s/ J. Markham Penrod
Name/Title:	J. Markham Penrod, Chief Compliance Officer - North America, Principal Asset Management
Date:	07/31/2026