STOCK TITAN

Rivian (RIVN) director’s trust sells 20,000 shares under 10b5-1 plan

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Rivian Automotive director Karen Boone, through The Boone Family Trust, reported an open-market sale of 20,000 shares of Class A common stock on July 6, 2026 at $20.00 per share. Following the transaction, the trust held 110,000 shares indirectly and Boone also reported 115,794 shares held directly.

The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 24, 2025, and falls under an exception to a lock-up agreement. The remaining shares are subject to a lock-up that restricts sales for 45 days after the date of the final prospectus, subject to specified exceptions.

Positive

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Negative

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Insider Boone Karen
Role Director
Sold 20,000 shs ($400K)
Type Security Shares Price Value
Sale Class A Common Stock 20,000 $20.00 $400K
holding Class A Common Stock -- -- --
Holdings After Transaction: Class A Common Stock — 110,000 shares (Indirect, See footnote); Class A Common Stock — 115,794 shares (Direct)
Footnotes (1)
  1. The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 24, 2025, as described in the Issuer's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the Securities and Exchange Commission on February 12, 2026. The sale was made under an exception to the restrictions under the Lock-Up Agreement (as defined in Footnote 2) for an "Existing Trading Plan" (as defined therein). The shares of Class A Common Stock beneficially owned by the Reporting Person following the transactions reported on this Form 4 are subject to a lock-up agreement (the "Lock-Up Agreement") between the Reporting Person and Goldman Sachs & Co. LLC , dated July 6, 2026 (the "Lock-up Date") pursuant to which the shares of Class A Common Stock reported herein cannot be sold for 45 days following the date of the final Prospectus (as defined in the Lock-Up Agreement), subject to certain enumerated exceptions in the Lock-Up Agreement. By The Boone Family Trust dated August 6, 2015.
Shares sold 20,000 shares Open-market sale of Class A common stock on July 6, 2026
Sale price $20.00 per share Price for 20,000 Rivian Class A shares sold
Approximate sale proceeds $400,000 20,000 shares at $20.00 per share
Indirect holdings after sale 110,000 shares Class A shares held by The Boone Family Trust after transaction
Direct holdings 115,794 shares Class A shares held directly by Karen Boone as of July 6, 2026
Lock-up duration 45 days Period after final prospectus during which sales are restricted
Trading plan adoption date November 24, 2025 Date Boone adopted the Rule 10b5-1 trading plan
Rule 10b5-1 trading plan regulatory
"The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Lock-Up Agreement regulatory
"subject to a lock-up agreement (the "Lock-Up Agreement") between the Reporting Person and Goldman Sachs & Co. LLC"
A lock-up agreement is a contract that prevents company insiders and early investors from selling their shares for a fixed period after a stock sale, often after an initial public offering. It matters to investors because it temporarily limits the number of shares that can hit the market, which can keep the share price steadier; when the lock-up ends, a sudden increase in available shares can create extra volatility, revealing insiders’ confidence or lack thereof.
Existing Trading Plan regulatory
"The sale was made under an exception to the restrictions under the Lock-Up Agreement ... for an "Existing Trading Plan""
beneficially owned financial
"The shares of Class A Common Stock beneficially owned by the Reporting Person following the transactions"
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.
Class A Common Stock financial
"The shares of Class A Common Stock beneficially owned by the Reporting Person"
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider transaction did Rivian (RIVN) disclose for Karen Boone?

Rivian reported that a trust associated with director Karen Boone sold 20,000 Class A shares at $20.00 per share. The transaction was an open-market sale and was executed under a pre-arranged Rule 10b5-1 trading plan adopted in November 2025.

How many Rivian (RIVN) shares does Karen Boone hold after this Form 4?

After the reported sale, a Boone-related trust held 110,000 Rivian Class A shares indirectly, and Boone also reported 115,794 shares held directly. These figures show that Boone retains a substantial remaining equity position in Rivian following this transaction.

Was the Rivian (RIVN) insider sale by Karen Boone pre-planned?

Yes. The filing states the sale was made under a Rule 10b5-1 trading plan adopted by Karen Boone on November 24, 2025. Such plans schedule trades in advance, helping separate routine portfolio management from discretionary market-timing decisions.

At what price were the Rivian (RIVN) shares sold in Karen Boone’s Form 4?

The Boone-related trust sold 20,000 shares of Rivian Class A common stock at an average price of $20.00 per share. This price level, combined with the share count, implies total sale proceeds of about $400,000 for the trust.

How does the lock-up agreement affect Karen Boone’s Rivian (RIVN) shares?

The filing notes Boone’s remaining Class A shares are subject to a lock-up agreement dated July 6, 2026. Under this agreement, the shares generally cannot be sold for 45 days after the final prospectus date, except for specific permitted transactions.

Who actually sold the Rivian (RIVN) shares reported in Karen Boone’s Form 4?

The sale was made by The Boone Family Trust dated August 6, 2015, an entity associated with Karen Boone. The trust is identified in the filing as the indirect owner of the sold Class A common stock, while Boone is the reporting person.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Boone Karen

(Last)(First)(Middle)
C/O RIVIAN AUTOMOTIVE, INC.
14600 MYFORD ROAD

(Street)
IRVINE CALIFORNIA 92606

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Rivian Automotive, Inc. / DE [ RIVN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/06/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Class A Common Stock07/06/2026S(1)20,000D$20110,000(2)ISee footnote(3)
Class A Common Stock115,794(2)D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 24, 2025, as described in the Issuer's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the Securities and Exchange Commission on February 12, 2026. The sale was made under an exception to the restrictions under the Lock-Up Agreement (as defined in Footnote 2) for an "Existing Trading Plan" (as defined therein).
2. The shares of Class A Common Stock beneficially owned by the Reporting Person following the transactions reported on this Form 4 are subject to a lock-up agreement (the "Lock-Up Agreement") between the Reporting Person and Goldman Sachs & Co. LLC , dated July 6, 2026 (the "Lock-up Date") pursuant to which the shares of Class A Common Stock reported herein cannot be sold for 45 days following the date of the final Prospectus (as defined in the Lock-Up Agreement), subject to certain enumerated exceptions in the Lock-Up Agreement.
3. By The Boone Family Trust dated August 6, 2015.
Remarks:
/s/ Jamie Chung, Attorney-in-Fact07/08/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)