Lithium Americas Corp. (LAC) GC exercises RSUs, 25,590 shares withheld for tax

Rhea-AI Filing Summary

LITHIUM AMERICAS CORP. senior vice president, general counsel and secretary Edward Grandy exercised restricted share units that converted into 21,218 common shares on April 10, 2026. A total of 25,590 common shares were then withheld at $4.17 per share to cover tax obligations, leaving him with 173,322 common shares held directly after these transactions.

Insider Trade Summary

21,218 shares exercised/converted

Mixed 3 txns

Insider GRANDY EDWARD

Role Sr VP, GC & Secretary

Type	Security	Shares	Price	Value
Exercise	Restricted Share Units	21,218	$0.00	--
Exercise	Common Shares	21,218	$0.00	--
Tax Withholding	Common Shares	25,590	$4.17	$107K

Holdings After Transaction: Restricted Share Units — 42,435 shares (Direct); Common Shares — 198,912 shares (Direct)

Footnotes (1)

1. Each restricted share unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock. Represents grant of 63,653 RSUs on April 10, 2025, which vest one-third annually beginning in 2026.

Key Figures

RSU exercise: 21,218 shares Tax-withholding shares: 25,590 shares Tax-withholding price: $4.17 per share +3 more

6 metrics

RSU exercise 21,218 shares Restricted share units converted into common shares on April 10, 2026

Tax-withholding shares 25,590 shares Common shares withheld to satisfy tax liability at $4.17 per share

Tax-withholding price $4.17 per share Value applied to 25,590 withheld common shares

Post-transaction holdings 173,322 shares Common shares directly held after April 10, 2026 transactions

Post-exercise total before withholding 198,912 shares Common shares directly held immediately after RSU exercise

RSU grant size 63,653 RSUs Grant on April 10, 2025 vesting one-third annually from 2026

Key Terms

Restricted Share Units, tax-withholding disposition, derivative security, contingent right

4 terms

Restricted Share Units financial

"Each restricted share unit ("RSU") represents a contingent right to receive one share"

Restricted share units (RSUs) are a promise from a company to give an employee or service provider actual shares or cash equal to the shares after certain conditions are met, typically staying with the company for a set time or hitting performance targets. Think of them like a time-locked gift card that becomes usable only after you’ve earned it. For investors, RSUs matter because they align employee incentives with company performance and can increase the number of shares outstanding over time, diluting existing ownership and affecting earnings per share.

tax-withholding disposition financial

"Payment of exercise price or tax liability by delivering securities"

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative security financial

"Exercise or conversion of derivative security"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

contingent right financial

"represents a contingent right to receive one share of the Issuer's common stock"

Form 4 Insider Transactions: What Each Field Means →

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^*

GRANDY EDWARD

(Last) (First) (Middle)

C/O LITHIUM AMERICAS CORP.

5310 KIETZKE LANE, SUITE 200

(Street)

RENO NEVADA 89511

(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)
	Sr VP, GC & Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Shares	04/10/2026		M		21,218	A	(1)	198,912	D
Common Shares	04/10/2026		F		25,590	D	$4.17	173,322	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Share Units	(1)	04/10/2026		M			21,218	(2)	(2)	Common Shares	21,218	$0	42,435	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 63,653 RSUs on April 10, 2025, which vest one-third annually beginning in 2026.

	/s/ Tereza Fonda as attorney-in-fact for Edward Grandy	04/14/2026
	** 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)

FAQ

What insider transaction did LAC executive Edward Grandy report?

Edward Grandy reported exercising restricted share units into 21,218 common shares, followed by a 25,590-share tax-withholding disposition at $4.17 per share. After these compensation-related transactions, he directly held 173,322 common shares of Lithium Americas Corp.

Did the LAC Form 4 show an open-market buy or sell by Edward Grandy?

The Form 4 did not show any open-market purchases or sales. It reported an exercise of 21,218 restricted share units into common shares and a 25,590-share tax-withholding disposition at $4.17, both tied to equity compensation rather than discretionary market trades.

How many Lithium Americas common shares does Edward Grandy hold after this filing?

Following the April 10, 2026 transactions, Edward Grandy directly held 173,322 common shares of Lithium Americas Corp. This figure reflects the exercise of 21,218 restricted share units and the subsequent withholding of 25,590 shares to satisfy tax liabilities associated with the award.

What does the tax-withholding transaction in Edward Grandy’s LAC filing mean?

The tax-withholding disposition reflects 25,590 common shares withheld at $4.17 per share to cover tax obligations from the equity award. This type F transaction is not an open-market sale; it is a mechanistic step tied to the restricted share unit exercise.

How were Edward Grandy’s restricted share units in LAC structured?

Each restricted share unit represents a contingent right to receive one common share of Lithium Americas Corp. A referenced grant of 63,653 RSUs on April 10, 2025 vests in three equal annual installments beginning in 2026, aligning payouts with a multi-year service period.

What is the net share impact of Edward Grandy’s April 10, 2026 LAC transactions?

The filing shows 21,218 shares acquired through RSU exercise and 25,590 shares withheld for taxes, for a net reduction versus the post-exercise total. After these steps, Grandy’s direct holdings stood at 173,322 common shares of Lithium Americas Corp.