Mamatha Chamarthi - 16 Jul 2025 Form 4 Insider Report for ChampionX Corp (CHX)

Reporting relationship: Director
Issuer ticker: CHX
Reported as of: 16 Jul 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 16 Jul 2025, 10:23:46 UTC
Prior SEC filing: 18 Nov 2024
Source filing: View source filing
Reporting owner signature: /s/ Julia Wright, as attorney-in-fact to Mamatha Chamarthi

Key filing fact

Mamatha Chamarthi filed Form 4 for ChampionX Corp (CHX) on 16 Jul 2025.

Key facts

This page summarizes Mamatha Chamarthi's Form 4 filing for ChampionX Corp (CHX).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 16 Jul 2025, 10:23.

Change

Previous filing in this sequence was filed on 18 Nov 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001737929 Primary reporting owner

Chamarthi Mamatha

Relationship: Director
Address: C/O CHAMPIONX CORP, 2445 TECHNOLOGY, FOREST BLVD., BLDG. 4, 12TH FLOOR, THE WOODLANDS
Signature: /s/ Julia Wright, as attorney-in-fact to Mamatha Chamarthi
Signature date: 16 Jul 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CHX transaction

Common Stock

Award

Transaction value: $0
Shares: +2,771
Change %: +8.2%
Price: $0.000000
Shares after: 36,696
Date: 16 Jul 2025
Ownership: Direct
Footnotes: F1

CHX transaction

Common Stock

Disposed to Issuer

Transaction value
Shares: -36,696
Change %: -100%
Price
Shares after: 0
Date: 16 Jul 2025
Ownership: Direct
Footnotes: F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Mamatha Chamarthi is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 3 footnotes

Footnote F1

As contemplated by the Issuer's Amended and Restated 2018 Equity and Cash Incentive Plan and the Merger Agreement (as defined below), the Issuer issued to the Reporting Person shares of common stock of the Issuer ("Common Stock").

Footnote F2

Pursuant to the terms of the Agreement and Plan of Merger (the "Merger Agreement"), dated as of April 2, 2024, by and among the Issuer, Schlumberger Limited ("SLB"), Sodium Holdco, Inc. and Sodium Merger Sub, Inc. ("Merger Sub"), pursuant to which Merger Sub merged with and into the Issuer with the Issuer continuing as the surviving corporation and an indirect wholly owned subsidiary of SLB (the "Merger").

Footnote F3

Pursuant to the Merger Agreement, among other things, (i) each outstanding share of Common Stock prior to the effective time of the Merger (the "Effective Time") was cancelled and converted into the right to receive 0.735 shares of SLB common stock ("SLB Common Stock" and such ratio, the "Exchange Ratio") and if applicable, cash in lieu of fractional shares and (ii) each deferred stock unit of the Issuer outstanding immediately prior to the Effective Time (a "DSU") was cancelled and converted into the right to receive a number of shares of SLB Common Stock equal to the product of (A) the number of shares of Common Stock underlying the DSU multiplied by (B) the Exchange Ratio, rounded down to the nearest whole share.