Aubree Barnum

CIK: 0002045589

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (7.1%)

Position reduction

Option Exercises (M)5 (35.7%)

Derivative conversions

Awards (A)3 (21.4%)

Compensation grants

Other (G, F, J, C, D, …)5 (35.7%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

LAC

LITHIUM AMERICAS CORP.

Officer

Discretionary Trading P&L

Holdings

Transaction History (14 total)

LAC
LITHIUM AMERICAS CORP.
Oct 24, 2026
Exercise(M)
Direct
11.4K shares-
LAC
LITHIUM AMERICAS CORP.
Apr 10, 2026
Tax Payment(F)
Direct
17.3K shares at avg. $4.17$72K
LAC
LITHIUM AMERICAS CORP.
Apr 10, 2026
Exercise(M)
Direct
15.7K shares-
LAC
LITHIUM AMERICAS CORP.
Feb 12, 2026
Tax Payment(F)
Direct
3.7K shares at avg. $4.54$17K
LAC
LITHIUM AMERICAS CORP.
Feb 9, 2026
Award(A)
Direct
8.5K shares-
LAC
LITHIUM AMERICAS CORP.
Jan 29, 2026
Award(A)
Direct
25.6K shares-
LAC
LITHIUM AMERICAS CORP.
Jan 23, 2026
Tax Payment(F)
Direct
3.1K shares at avg. $6.47$20K
LAC
LITHIUM AMERICAS CORP.
Jan 23, 2026
Exercise(M)
Direct
7K shares-
LAC
LITHIUM AMERICAS CORP.
Nov 14, 2025
Sale(S)
Direct
4.8K shares at avg. $4.50$21K
LAC
LITHIUM AMERICAS CORP.
Oct 24, 2025
Exercise(M)
Direct
11.4K shares-
LAC
LITHIUM AMERICAS CORP.
Jun 9, 2025
Tax Payment(F)
Direct
17K shares at avg. $2.74$47K
LAC
LITHIUM AMERICAS CORP.
Apr 15, 2025
Tax Payment(F)
Direct
3.1K shares at avg. $2.75$8K
LAC
LITHIUM AMERICAS CORP.
Apr 10, 2025
Award(A)
Direct
41.5K shares-
LAC
LITHIUM AMERICAS CORP.
Jan 23, 2025
Exercise(M)
Direct
7K shares-

		Type	Shares	Price		Ownership
Oct 24, 2026	LAC LITHIUM AMERICAS CORP.	Exercise(M)	11,417	-	$0	Direct
Apr 10, 2026	LAC LITHIUM AMERICAS CORP.	Tax Payment(F)	17,278	$4.17	$72,049	Direct
Apr 10, 2026	LAC LITHIUM AMERICAS CORP.	Exercise(M)	15,673	-	$0	Direct
Feb 12, 2026	LAC LITHIUM AMERICAS CORP.	Tax Payment(F)	3,735	$4.54	$16,957	Direct
Feb 9, 2026	LAC LITHIUM AMERICAS CORP.	Award(A)	8,548	-	$0	Direct
Jan 29, 2026	LAC LITHIUM AMERICAS CORP.	Award(A)	25,613	-	$0	Direct
Jan 23, 2026	LAC LITHIUM AMERICAS CORP.	Tax Payment(F)	3,137	$6.47	$20,296	Direct
Jan 23, 2026	LAC LITHIUM AMERICAS CORP.	Exercise(M)	7,037	-	$0	Direct
Nov 14, 2025	LAC LITHIUM AMERICAS CORP.	Sale(S)	4,763	$4.50	$21,434	Direct
Oct 24, 2025	LAC LITHIUM AMERICAS CORP.	Exercise(M)	11,417	-	-	Direct
Jun 9, 2025	LAC LITHIUM AMERICAS CORP.	Tax Payment(F)	17,014	$2.74	$46,618	Direct
Apr 15, 2025	LAC LITHIUM AMERICAS CORP.	Tax Payment(F)	3,050	$2.75	$8,388	Direct
Apr 10, 2025	LAC LITHIUM AMERICAS CORP.	Award(A)	41,507	-	-	Direct
Jan 23, 2025	LAC LITHIUM AMERICAS CORP.	Exercise(M)	7,037	-	-	Direct

1-14 of 14 transactions

About BARNUM AUBREE

BARNUM AUBREE (SEC CIK 0002045589) files insider reports with the SEC as VP, Human Resources of LITHIUM AMERICAS CORP. (LAC).

Signal8 holds 12 ownership filings by BARNUM AUBREE (2 Form 3, 10 Form 4), filed between Dec 31, 2024 and Oct 26, 2026. Those filings report 14 transactions, from Jan 23, 2025 to Oct 24, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on BARNUM AUBREE's filings is in RENO, NV.

Recent filings by BARNUM AUBREE

Oct 24, 2026: Option exercise of LAC shares (Form 4, code M).
Apr 10, 2026: Tax withholding of LAC shares (Form 4, code F).
Apr 10, 2026: Option exercise of LAC shares (Form 4, code M).
Feb 12, 2026: Tax withholding of LAC shares (Form 4, code F).
Feb 9, 2026: Grant or award of LAC shares (Form 4, code A).

Other insiders filing for LITHIUM AMERICAS CORP. (LAC)

RUSSELL-SMITH ROBERT, SVP, Finance
GRANDY EDWARD, Sr VP, GC & Secretary
DUSHNISKY KELVIN PAUL MICHAEL, Executive Chair
CROWLEY TIMOTHY AMBROSE, SVP, Gov & External Affairs
GERSPACHER RICHARD, EVP, Capital Projects & Ops
ZAWADZKI ALEXI ILLYA, Officer

How to read Form 4 transaction codes