Entegris (NASDAQ: ENTG) — T. Rowe Price reports 11.65M shares (7.7%)

Rhea-AI Filing Summary

Entegris Inc. ownership disclosure: T. Rowe Price Associates, Inc. reports beneficial ownership of 11,652,508 shares of Common Stock, representing 7.7% of the class as reported. The filing lists sole voting power of 11,346,867 shares and sole dispositive power of 11,652,508. The filing identifies the reporting person and principal office and is signed by a T. Rowe Price Vice President on 05/15/2026.

Insights

Institutional Ownership Specialist

T. Rowe Price reports a 7.7% stake in Entegris (11.65M shares).

The filing shows a substantial passive holding by T. Rowe Price Associates, Inc. with 11,652,508 shares reported as beneficially owned and 11,346,867 shares of sole voting power. The statement includes the reporting firm's address and CUSIP 29362U104.

Ownership is declared on a Schedule 13G/A amendment; the filing includes an express denial of beneficial ownership language signed on 05/15/2026. Subsequent public disclosures or amendments will show any changes to this stake.

Regulatory Compliance Analyst

The amendment clarifies reported voting and dispositive powers for regulatory recordkeeping.

The Schedule 13G/A lists exact voting and dispositive counts: sole voting power 11,346,867; sole dispositive power 11,652,508, and percent of class 7.7%. It also contains the filer’s declaration denying beneficial ownership.

As a Schedule 13G/A, this is a passive/investment-management disclosure rather than an active transaction; any material change would be reflected in future amendments.

Key Figures

Beneficial ownership: 11,652,508 shares Percent of class: 7.7% Sole voting power: 11,346,867 shares +3 more

6 metrics

Beneficial ownership 11,652,508 shares Schedule 13G/A amendment

Percent of class 7.7% reported percent of common stock

Sole voting power 11,346,867 shares voting power reported on the amendment

Sole dispositive power 11,652,508 shares dispositive power reported on the amendment

CUSIP 29362U104 identified for Entegris common stock

Signature date 05/15/2026 filing signed by T. Rowe Price Vice President

Key Terms

Schedule 13G/A, beneficially owned, sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 5 ENTEGRIS INC COMMON STOCK"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned regulatory

"Amount beneficially owned: 11652508"

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 dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 11652508"

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.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 5)

ENTEGRIS INC

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

29362U104

(CUSIP Number)

03/31/2026

(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): 29362U104

1

Names of Reporting Persons

T. Rowe Price Associates, Inc.

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

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 11,346,867.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 11,652,508.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,652,508.00

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)

7.7 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: ENTEGRIS INC
(b)	Address of issuer's principal executive offices: 129 CONCORD ROAD, BILLERICA, MA, 01821
Item 2.
(a)	Name of person filing: T. Rowe Price Associates, Inc.
(b)	Address or principal business office or, if none, residence: 1307 Point Street, Baltimore, MD 21231
(c)	Citizenship: Maryland
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP No.: 29362U104
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: 11652508
(b)	Percent of class: 7.7 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 11346867
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 11652508
	(iv) Shared power to dispose or to direct the disposition of: 0
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. T. Rowe Price Associates, Inc. hereby declares and affirms that the filing of Schedule 13G shall not be construed as an admission that Price Associates is the beneficial owner of the securities referred to, which beneficial ownership is expressly denied.

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.

T. Rowe Price Associates, Inc.

Signature:	Ellen York
Name/Title:	Vice President
Date:	05/15/2026

FAQ

What stake does T. Rowe Price report in ENTEGRIS (ENTG)?

T. Rowe Price reports beneficial ownership of 11,652,508 shares, equal to 7.7% of the class. This appears on a Schedule 13G/A amendment listing voting and dispositive powers and the filer’s contact details.

How many votes does T. Rowe Price have on ENTEGRIS shares?

The filing lists sole voting power for 11,346,867 shares. The Schedule 13G/A enumerates voting and dispositive counts reported by the filer's principal office.

When was the Schedule 13G/A by T. Rowe Price signed for ENTG?

The certificate is signed by a T. Rowe Price Vice President on 05/15/2026. The form identifies the reporting person and contains the CUSIP 29362U104.

Does the filing state T. Rowe Price is the beneficial owner of the ENTEGRIS shares?

The filing includes an express denial: T. Rowe Price "hereby declares and affirms" the filing "shall not be construed as an admission" of beneficial ownership. The statement appears verbatim in the amendment.