Lithium Americas (LAC) EVP exercises RSUs as 37,267 shares withheld for taxes

Rhea-AI Filing Summary

LITHIUM AMERICAS CORP. executive vice president of Capital Projects Richard Gerspacher reported routine equity compensation activity involving restricted share units and common shares.

On April 10, 2026 he exercised awards to acquire 34,239 common shares. On the same date, 37,267 common shares were disposed of at $4.17 per share to satisfy tax obligations through share withholding, rather than an open-market sale. After these transactions he directly held 146,838 common shares.

A related derivative entry shows 34,239 restricted share units tied to 34,239 underlying common shares, and total RSU holdings of 68,478 units. Each RSU represents a contingent right to receive one share of common stock, with a prior grant of 102,717 RSUs vesting in thirds annually beginning in 2026.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider GERSPACHER RICHARD

Role EVP, Capital Projects

Type	Security	Shares	Price	Value
Exercise	Common Shares	34,239	$0.00	--
Tax Withholding	Common Shares	37,267	$4.17	$155K
derivative	Restricted Share Units ("RSUs")	34,239	$0.00	--

Holdings After Transaction: Common Shares — 184,105 shares (Direct); Restricted Share Units ("RSUs") — 68,478 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 102,717 RSUs on April 10, 2025, which vest 1/3 annually on the anniversary date of the grant, beginning in 2026.

Key Figures

Common shares acquired: 34,239 shares Shares withheld for taxes: 37,267 shares at $4.17 Common shares held after: 146,838 shares +2 more

5 metrics

Common shares acquired 34,239 shares Acquired via award exercise on April 10, 2026

Shares withheld for taxes 37,267 shares at $4.17 Tax-withholding disposition on April 10, 2026

Common shares held after 146,838 shares Direct ownership following April 10, 2026 transactions

RSU holdings 68,478 RSUs Restricted share units outstanding after reported activity

Prior RSU grant 102,717 RSUs Granted April 10, 2025, vesting 1/3 annually from 2026

Key Terms

restricted share units ("RSUs"), contingent right, tax-withholding disposition, derivative security

4 terms

restricted share units ("RSUs") financial

"Represents grant of 102,717 RSUs on April 10, 2025, which vest 1/3 annually"

contingent right financial

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

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^*

GERSPACHER RICHARD

(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)
	EVP, Capital Projects

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		34,239	A	$0	184,105	D
Common Shares	04/10/2026		F		37,267	D	$4.17	146,838	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 ("RSUs")	(1)	03/27/2026					34,239	(2)	(2)	Common Shares	34,239	$0	68,478	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 102,717 RSUs on April 10, 2025, which vest 1/3 annually on the anniversary date of the grant, beginning in 2026.

	/s/ Tereza Fonda as attorney-in-fact for Richard Gerspacher	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 transactions did LAC executive Richard Gerspacher report on this Form 4?

Richard Gerspacher reported exercising awards to acquire 34,239 common shares and a separate disposition of 37,267 common shares through tax withholding at $4.17 per share. These actions were tied to his equity compensation and adjusted his directly held share count.

How many LAC common shares does Richard Gerspacher hold after these transactions?

Following the reported transactions, Richard Gerspacher directly holds 146,838 common shares of Lithium Americas Corp. This figure reflects both the 34,239 shares acquired from award exercise and the 37,267 shares withheld and disposed of to cover tax obligations on April 10, 2026.

What role did tax withholding play in Richard Gerspacher’s LAC share transactions?

The Form 4 shows 37,267 common shares disposed of at $4.17 per share as a tax-withholding transaction. This means shares were delivered to satisfy tax liabilities related to his equity awards, rather than sold in an open-market trade, and is coded as a tax-withholding disposition.

What restricted share unit (RSU) holdings does Richard Gerspacher report at LAC?

He reports 68,478 restricted share units, including an entry for 34,239 RSUs linked to 34,239 underlying common shares. Footnotes describe a grant of 102,717 RSUs on April 10, 2025 that vests in one-third annual installments beginning in 2026, each RSU equaling one common share.

How do LAC RSUs work for Richard Gerspacher according to this filing?

Each restricted share unit represents a contingent right to receive one share of Lithium Americas common stock. A prior grant of 102,717 RSUs vests in equal one-third portions annually on its anniversary date, beginning in 2026, gradually converting units into common shares as they vest.