FMR LLC and Abigail P. Johnson reported beneficial ownership of 4,264,458.08 shares of Minerals Technologies Inc. common stock, representing 13.7% of the class as disclosed on this Amendment No. 4 to Schedule 13G/A. The cover lists CUSIP 603158106 and an as of date of 03/31/2026.
The filing shows FMR LLC with sole voting power of 4,260,129 shares and sole dispositive power of 4,264,458.08 shares. Signatures indicate a power of attorney effective 04/13/2026 and execution dated 05/05/2026.
Positive
None.
Negative
None.
Insights
FMR LLC reports a >10% passive stake in Minerals Technologies (13.7%).
Schedule 13G/A filings record large passive holdings; here FMR LLC reports beneficial ownership of 4,264,458.08 shares, with sole voting and dispositive figures shown on the cover. The filing cites Exhibit 99 and a power of attorney.
Implications depend on whether holdings are passive under Rule 13d-1(b); the filing type (13G/A amendment) suggests an institutional investor disclosure rather than an active acquisition. Subsequent amendments or a switch to Schedule 13D would signal a change in intent.
Key Figures
Beneficial ownership:4,264,458.08 sharesPercent of class:13.7%Sole voting power:4,260,129 shares+5 more
8 metrics
Beneficial ownership4,264,458.08 sharesAmount beneficially owned reported on Schedule 13G/A
Percent of class13.7%Percent of common stock reported as beneficially owned
Sole voting power4,260,129 sharesSole power to vote shown on the cover responses
Sole dispositive power4,264,458.08 sharesSole power to dispose reported in Item 4
CUSIP603158106Identifier for Minerals Technologies common stock
Cover 'as of' date03/31/2026Date listed on the cover page of the amendment
Power of attorney effective04/13/2026Power of attorney date referenced in signatures/exhibits
Signature date05/05/2026Execution date of the signatures on the amendment
Key Terms
Schedule 13G/A, Beneficially owned, Sole dispositive power, Exhibit 99, +1 more
5 terms
Schedule 13G/Aregulatory
"Amendment No. 4 to Schedule 13G/A reporting beneficial ownership"
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 ownedfinancial
"Amount beneficially owned: 4264458.08"
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 powerregulatory
"Sole power to dispose or to direct the disposition of: 4264458.08"
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.
Exhibit 99regulatory
"Please see Exhibit 99 for 13d-1(k)(1) agreement"
Power of Attorney (Exhibit 24)legal
"This power of attorney is incorporated herein by reference to Exhibit 24"
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 4)
MINERALS TECHNOLOGIES INC
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
603158106
(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):
603158106
1
Names of Reporting Persons
FMR LLC
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
4,260,129.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
4,264,458.08
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
4,264,458.08
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)
13.7 %
12
Type of Reporting Person (See Instructions)
HC
SCHEDULE 13G
CUSIP Number(s):
603158106
1
Names of Reporting Persons
Abigail P. Johnson
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
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
4,264,458.08
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
4,264,458.08
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)
13.7 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
MINERALS TECHNOLOGIES INC
(b)
Address of issuer's principal executive offices:
622 THIRD AVENUE,New York,NY,US,10017-6707
Item 2.
(a)
Name of person filing:
FMR LLC
(b)
Address or principal business office or, if none, residence:
245 Summer Street, Boston, Massachusetts 02210
(c)
Citizenship:
Not applicable
(d)
Title of class of securities:
COMMON STOCK
(e)
CUSIP No.:
603158106
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:
4264458.08
(b)
Percent of class:
13.7 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
Please see the responses to Items 5 and 6 on the cover page.
(ii) Shared power to vote or to direct the vote:
0.00
(iii) Sole power to dispose or to direct the disposition of:
4264458.08
(iv) Shared power to dispose or to direct the disposition of:
0.00
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.
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.
One or more other persons are known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the COMMON STOCK of MINERALS TECHNOLOGIES INC. No one other person's interest in the COMMON STOCK of MINERALS TECHNOLOGIES INC is more than five percent of the total outstanding COMMON STOCK.
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.
See attached Exhibit 99.
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.
FMR LLC
Signature:
Richard Bourgelas
Name/Title:
Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of FMR LLC and its direct and indirect subsidiaries*
Date:
05/05/2026
Abigail P. Johnson
Signature:
Richard Bourgelas
Name/Title:
Duly authorized under Power of Attorney effective as of April 13, 2026, by and on behalf of Abigail P. Johnson*
Date:
05/05/2026
Comments accompanying signature: *This power of attorney is incorporated herein by reference to Exhibit 24 to the Schedule 13G filed by FMR LLC on April 29,2026, accession number: 0000315066-26-000738.
What stake does FMR LLC report in Minerals Technologies (MTX)?
FMR LLC reports beneficial ownership of 4,264,458.08 shares, equal to 13.7% of the class. The amount and percentage are shown on Amendment No. 4 to Schedule 13G/A with CUSIP 603158106 and an as of date of 03/31/2026.
What voting and dispositive powers does FMR LLC claim for MTX shares?
The filing lists sole voting power of 4,260,129 shares and sole dispositive power of 4,264,458.08 shares. Shared voting and dispositive powers are reported as 0.00 in the cover responses.
Does this filing indicate an active acquisition or change in intent?
No explicit active acquisition is stated; this is an amended Schedule 13G/A, which typically reports large passive holdings. The filing does not state a switch to Schedule 13D or an active control intent in the provided excerpt.
Who signed the Schedule 13G/A amendment for FMR LLC?
The document is signed by Richard Bourgelas as duly authorized under a power of attorney on behalf of FMR LLC and Abigail P. Johnson, with the power of attorney effective 04/13/2026 and signature date 05/05/2026.
Where can I find supporting exhibits referenced in the filing?
The amendment references Exhibit 99 for a 13d-1(k)(1) agreement and incorporates a power of attorney by reference to Exhibit 24. The excerpt instructs readers to see those exhibits for supporting details.
