UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington
,D.C. 20549
SCHEDULE 13G*
(Rule 13d-102)
INFORMATION TO BE INCLUDED IN STATEMENTS FILEDPURSUANT
TO
(s) 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED
PURSUANTTO
(s) 240.13d-2
(Amendment No. 2)*
Standard Motor Products Inc
(Name of Issuer)
Common Stock
(Title of Class of Securities)
853666105
(CUSIP Number)
December 31, 2023
(Date of Event Which Requires Filing of the Statement)
Check the appropriate box to designate the rulepursuant to which this Schedule
is filed:
x Rule 13d-1(b)
o Rule 13d-1(c)
o Rule 13d-1(d)
*The remainder of this cover page shall be filledout for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequentamendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of thiscover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act")or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however,
seethe Notes).
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853666105
1. NAME OF REPORTING PERSONS
William Blair Investment Management, LLC
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(see instructions)
(a)
o
(b)
o
3. SEC USE ONLY
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
NUMBER OF
SHARES 5. SOLE VOTING POWER
BENEFICIALLY
OWNED BY 621,487
EACH
REPORTING
PERSON
WITH
6. SHARED VOTING POWER
0
7. SOLE DISPOSITIVE POWER
1,034,912
8. SHARED DISPOSITIVE POWER
0
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
1,034,912
10. CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(SEE INSTRUCTIONS)
o
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
4.8%
12. TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
IA
CUSIP: Page 3
853666105
Item 1(a). Name of Issuer:
Standard Motor Products Inc
Item 1(b). Address of Issuer's Principal Executive Offices:
37-18 Northern Blvd, Long Island City, NY 11101
Item 2(a). Name of Person Filing:
William Blair Investment Management, LLC
Item 2(b). Address of Principal Business Office or, if none, Residence:
150 North Riverside Plaza, Chicago, IL 60606
Item 2(c). Citizenship:
Delaware
Item 2(d). Title of Class of Securities:
Common Stock
Item 2(e). CUSIP Number:
853666105
Item 3. If this statement is filed pursuant to (s)(s) 240.13d-1(b),
or 240.13d-2(b) or (c), check whether the person filing is a:
(a) o Broker or dealer registered under
Section 15 of the Act (15 U.S.C. 78o);
(b) o Bank as defined in Section 3(a)(6)
of the Act (15 U.S.C. 78c);
(c) o Insurance company as defined in Section
3(a)(19) of the Act (15 U.S.C. 78c);
(d) o Investment company registered under Section 8 of the
Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e) x An investment adviser in accordance
with (s) 240.13d-1(b)(1)(ii)(E);
(f) o An employee benefit plan or endowment fund in
accordance with (s) 240.13d-1(b)(1)(ii)(F);
(g) o A parent holding company or control person in
accordance with (s) 240.13d-1(b)(1)(ii)(G);
(h) o A savings association as defined in Section 3(b) of
the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i) o A church plan that is excluded from the definition of an investment company
under Section 3(c)(14) of the Investment Company Act (15 U.S.C. 80a-3);
(j) o A non-U.S. institution in accordance
with (s) 240.13d-1(b)(1)(ii)(J);
(k) o Group, in accordance with
(s) 240.13d-1(b)(1)(ii)(K).
If filing as a non-U.S. institution in accordance with (s)240.13d-1(b)(1)(ii)(J)
, please specify the type of institution: ____________.
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853666105
Item 4. Ownership:
Provide the following information
regarding the aggregate number and
percentage of the class of securities
of the issuer identified in Item 1.
(a) Amount beneficially owned: 1,034,912
(b) Percent of class: 4.8%
(c) Number of shares as to which the person has:
(i) Sole power to vote or to
direct the vote: 621,487
(ii) Shared power to vote or
to direct the vote: 0
(iii) Sole power to dispose
or to direct
the disposition of: 1,034,912
(iv) Shared power to dispose or to
direct the disposition of: 0
Item 5. Ownership of Five Percent or Less of a Class:
If this statement is being filed to report the fact
that as of the date hereof the reporting person has
ceased to be the beneficial owner of more than 5 percent
of the class of securities, check the following.
x
Item 6. Ownership of More Than Five Percent on Behalf of Another Person:
N/A
Item 7. Identification and Classification of the Subsidiary Which Acquired
the Security Being Reported on By the Parent Holding Company:
N/A
Item 8. Identification and Classification of Members of the Group:
N/A
Item 9. Notice of Dissolution of Group:
N/A
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.
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853666105
SIGNATURE
After reasonable inquiry and tothe best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.
Date: February 12, 2024
By: /s/ Stephanie Braming
Name: Stephanie Braming
Title: Partner, Global Head of Investment Management
The original statement shall be signed by each person on whose behalfthe
statement is filed or his authorized representative. If the statement is
signed on behalf of a person by his authorized representativeother than an
executive officer or general partner of the filing person, evidence of the
representative's authority to sign on behalfof such person shall be filed with
the statement,
Provided, however
, that a power of attorney for this purpose which is alreadyon file with the
Commission may be incorporated by reference. The name and any title of each
person who signs the statement shall be typedor printed beneath his signature.
Attention: Intentional misstatementsor omissions of fact constitute Federal
criminal violations
(
see
18 U.S.C. 1001).