Michael John Callahan - 15 Aug 2026 Form 4 Insider Report for Rivian Automotive, Inc. / DE (RIVN)

Reporting relationship: Chief Administrative Officer
Issuer ticker: RIVN
Reported as of: 15 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 18 Aug 2026, 17:24:29 UTC
Prior SEC filing: 22 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Jamie Chung, Attorney-in-Fact

Key filing fact

Michael John Callahan filed Form 4 for Rivian Automotive, Inc. / DE (RIVN) on 18 Aug 2026.

Key facts

This page summarizes Michael John Callahan's Form 4 filing for Rivian Automotive, Inc. / DE (RIVN).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 18 Aug 2026, 17:24.

Change

Previous filing in this sequence was filed on 22 May 2026.
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 0001262742 Primary reporting owner

CALLAHAN MICHAEL JOHN

Relationship: Chief Administrative Officer
Address: C/O RIVIAN AUTOMOTIVE, INC., 14600 MYFORD ROAD, IRVINE
Signature: /s/ Jamie Chung, Attorney-in-Fact
Signature date: 18 Aug 2026

Reported non-derivative transactions

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

RIVN transaction

Class A Common Stock

Tax liability

Transaction value
Shares: -42,082
Change %: -3.9%
Price: $15.36^*
Shares after: 1,031,776
Date: 15 Aug 2026
Ownership: Direct
Footnotes: F1, F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

42,082 shares of Class A Common Stock were withheld by the Company for the purposes of satisfying tax withholding obligations in connection with the vesting of 82,704 Restricted Stock Units on August 15, 2026.

Footnote F2

The closing price of the Issuer's Class A Common Stock on August 14, 2026.