Lithium Americas VP converts awards to 11,417 shares

Barnum's reported post-transaction holdings included 110,511 directly held common shares, alongside 24 shares held by her spouse.

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Filing Sentiment

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Form Type

Rhea-AI Filing Summary

Lithium Americas Corp. (LAC) reported that Aubree Barnum, VP, Human Resources, converted 11,417 restricted share units into 11,417 common shares on October 24, 2026. Each RSU represents a contingent right to receive one common share. Barnum’s reported direct common-share holdings after the transaction were 110,511 shares; the reported indirect holding included 24 common shares held by her spouse.

Insider Trade Summary

11,417 shares exercised/converted

Exercise 3 txns

Insider BARNUM AUBREE

Role VP, Human Resources

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units ^{F1, F2}	11,417	$0.00	$0.00
Exercise	Common Shares ^F1	11,417	--	--
holding	Common Shares	--	--	--

Holdings After Transaction: Restricted Share Units — 11,417 contracts (Direct); Common Shares — 110,511 shares (Direct); Common Shares — 24 shares (Indirect, Held by spouse)

Footnotes (2)

F1. Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.
F2. Represents grant of 57,085 RSUs on October 24, 2023, which vests 1/5 annually commencing on October 24, 2023.

Key Figures

Restricted share units converted: 11,417 RSUs Common shares acquired through conversion: 11,417 common shares Direct common shares following transaction: 110,511 shares +2 more

5 metrics

Restricted share units converted 11,417 RSUs October 24, 2026

Common shares acquired through conversion 11,417 common shares October 24, 2026

Direct common shares following transaction 110,511 shares Reported after the October 24, 2026 transaction

Common shares held by spouse 24 shares Reported as an indirect holding

Restricted share unit grant 57,085 RSUs Granted October 24, 2023; vests 1/5 annually commencing October 24, 2023

Key Terms

restricted share unit (RSU), contingent right, vests

3 terms

contingent right financial

"represents a contingent right to receive one share"

vests financial

"which vests 1/5 annually commencing on October 24, 2023"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many RSUs did LAC's VP of Human Resources convert?

Aubree Barnum converted 11,417 RSUs into 11,417 common shares on October 24, 2026. Her reported direct common-share holdings after the transaction were 110,511 shares.

What was Aubree Barnum's LAC RSU vesting schedule?

The 57,085-RSU grant dated October 24, 2023 vests 1/5 annually beginning October 24, 2023. Each RSU represents a contingent right to receive one common share.

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

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Available on EDGAR 10/26/2026 - 06:43 PM EDT Accepted by SEC EDGAR 10/26/2026 - 06:43 PM EDT

SEC Form 4

FORM 4

UNITED 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).

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^*

BARNUM AUBREE

(Last)

(First)

(Middle)

C/O LITHIUM AMERICAS CORP.

522 S. ROCK BLVD., SUITE 200

(Street)

RENO

NEVADA

89502

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
LITHIUM AMERICAS CORP. [ LAC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP, Human Resources

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/24/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares	10/24/2026		M		11,417	A	⁽¹⁾	110,511	D
Common Shares								24	I	Held by spouse

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Share Units	⁽¹⁾	10/24/2026		M			11,417	⁽²⁾	⁽²⁾	Common Shares	11,417	$0	11,417	D

Explanation of Responses:

1. Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock.

2. Represents grant of 57,085 RSUs on October 24, 2023, which vests 1/5 annually commencing on October 24, 2023.

	/s/ Tereza Fonda as attorney-in-fact for Aubree Barnum	10/26/2026
	** Signature of Reporting Person	Date
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)

Source: View Original Filing on SEC EDGAR