# EDGAR Filing Document

**Accession Number:** 0000077360
**File Stem:** 0001172661-23-000414
**Filing Date:** 2023-2
**Character Count:** 11813
**Document Hash:** 92c57238dbeff54c5289fec7eddff0b6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001172661-23-000414.hdr.sgml**: 20230202

**ACCESSION NUMBER**: 0001172661-23-000414

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230202

**DATE AS OF CHANGE**: 20230202

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PENTAIR plc
- **CENTRAL INDEX KEY:** 0000077360
- **STANDARD INDUSTRIAL CLASSIFICATION:** SPECIAL INDUSTRY MACHINERY (NO METALWORKING MACHINERY) [3550]
- **IRS NUMBER:** 981050812
- **STATE OF INCORPORATION:** L2
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-31819
- **FILM NUMBER:** 23582419

**BUSINESS ADDRESS:**
- **STREET 1:** REGAL HOUSE, 70 LONDON ROAD
- **STREET 2:** TWICKENHAM
- **CITY:** LONDON
- **STATE:** X0
- **ZIP:** TW13QS
- **BUSINESS PHONE:** 763-545-1730

**MAIL ADDRESS:**
- **STREET 1:** C/O PENTAIR MANAGEMENT COMPANY
- **STREET 2:** 5500 WAYZATA BLVD, SUITE 900
- **CITY:** GOLDEN VALLEY
- **STATE:** MN
- **ZIP:** 55416

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PENTAIR LTD
- **DATE OF NAME CHANGE:** 20121003

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PENTAIR INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PENTAIR INDUSTRIES INC
- **DATE OF NAME CHANGE:** 19790327
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PARNASSUS INVESTMENTS, LLC
- **CENTRAL INDEX KEY:** 0000948669
- **IRS NUMBER:** 872269073
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**BUSINESS ADDRESS:**
- **STREET 1:** 1 MARKET STREET #1600
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105
- **BUSINESS PHONE:** 4157780200

**MAIL ADDRESS:**
- **STREET 1:** 1 MARKET STREET #1600
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94105

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PARNASSUS INVESTMENTS /CA
- **DATE OF NAME CHANGE:** 19990326

------

------

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION<br> Washington, DC 20549**

**SCHEDULE 13G/A**

<br> **Under the Securities Exchange Act of 1934**

**(Amendment No. 4)\***

**Pentair plc**

---

| |
|:---|
| &nbsp;&nbsp;(Name of Issuer) |
| &nbsp;&nbsp; <br> **Common**<br>|
| &nbsp;&nbsp;(Title of Class of Securities) |
| &nbsp;&nbsp;<br> **G7S00T104**<br>|
| &nbsp;&nbsp;(CUSIP Number) |
| &nbsp;&nbsp;**December 31, 2022** |
| &nbsp;&nbsp;(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)

\*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required in the remainder of this cover 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, see the Notes).

------

---

| | | |
|:---|:---|:---|
| **CUSIP No. G7S00T104** | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 2 of 6 Pages** |

---

---

| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSONS<br>Parnassus Investments, LLC  | NAME OF REPORTING PERSONS<br>Parnassus Investments, LLC  | NAME OF REPORTING PERSONS<br>Parnassus Investments, LLC  | NAME OF REPORTING PERSONS<br>Parnassus Investments, LLC  |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> (a) □<br> (b) □ | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP<br> (a) □<br> (b) □ |  |
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION<br> San Francisco, California - U.S.A. | CITIZENSHIP OR PLACE OF ORGANIZATION<br> San Francisco, California - U.S.A. | CITIZENSHIP OR PLACE OF ORGANIZATION<br> San Francisco, California - U.S.A. | CITIZENSHIP OR PLACE OF ORGANIZATION<br> San Francisco, California - U.S.A. |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 5 | SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;2,296,917 | SOLE VOTING POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;2,296,917 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 6 | SHARED VOTING POWER<br>0 | SHARED VOTING POWER<br>0 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 7 | SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;2,296,917 | SOLE DISPOSITIVE POWER<br>&nbsp;&nbsp;&nbsp;&nbsp;2,296,917 |
| NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | NUMBER OF<br> SHARES<br> BENEFICIALLY<br> OWNED BY<br> EACH<br> REPORTING<br> PERSON<br> WITH | 8 | SHARED DISPOSITIVE POWER<br>0 | SHARED DISPOSITIVE POWER<br>0 |
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>2,296,917 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>2,296,917 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>2,296,917 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON<br>2,296,917 |
| 10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES | o |
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>1.396% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>1.396% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>1.396% | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)<br>1.396% |
| 12 | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA | TYPE OF REPORTING PERSON<br>IA |

---

---

| | | |
|:---|:---|:---|
| **CUSIP No. G7S00T104** | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 3 of 6 Pages** |

---

**Item 1.** **(a) Name of Issuer**

Pentair plc

**(b) Address of Issuer's Principal Executive Offices**

Regal House

70 London Road Twickenham

London TW13 Qs

United Kingdom

**Item 2.** **(a) Name of Person Filing**

Parnassus Investments, LLC

**(b) Address of Principal Business Office, or, if none, Residence**

1 Market Street, Suite 1600

San Francisco, CA 94105

**(c) Citizenship**

California - U.S.A.

**(d) Title of Class of Securities**

Common

**(e) CUSIP No.:**

G7S00T104

---

| | | |
|:---|:---|:---|
| **CUSIP No. G7S00T104** | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 4 of 6 Pages** |

---

(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);

(k) ◻ A group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J),
 please specify the type of institution: <u> </u> 

---

| | | |
|:---|:---|:---|
| **CUSIP No. G7S00T104** | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 5 of 6 Pages** |

---

**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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Amount beneficially owned: 2,296,917

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) Percent of class: 1.396%

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) Number of shares as to which the person has:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Sole power to vote or to direct the vote: 2,296,917

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Shared power to vote or to direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) Sole power to dispose or to direct the disposition of: 2,296,917

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(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**

Securities reported on this Schedule 13G are beneficially owned by clients of Parnassus Investments, LLC, which includes investment companies registered under the Investment Company Act.

**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. Certification**

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.

---

| | | |
|:---|:---|:---|
| **CUSIP No. G7S00T104** | **SCHEDULE 13G/A** | &nbsp;&nbsp;&nbsp; **Page 6 of 6 Pages** |

---

**<u>SIGNATURE</u>**

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.

Dated: February 2, 2023

---

| | | |
|:---|:---|:---|
| Parnassus Investments, LLC | Parnassus Investments, LLC | Parnassus Investments, LLC |
| By: | /s/ Marc C. Mahon | /s/ Marc C. Mahon |
|  | Name: | Marc C. Mahon |
|  | Title: | Chief Financial Officer |

---