Lithium Americas Corp.
US ˙ NYSE ˙ CA53681J1030

SecurityLAC / Lithium Americas Corp.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership2,304,396 shares
Latest Disclosed Value $ 9,102,364
Citadel Advisors Llc ownership in LAC / Lithium Americas Corp.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 2,304,396 shares of Lithium Americas Corp. (US:LAC) valued at $9,102,364 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,189,561 shares of Lithium Americas Corp.. This represents a change in shares of 5.24% during the quarter. The current value of the position is $11,982,859 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (LAC) in the form of stock options. The firm currently holds call options representing 2,097,600 of underlying shares valued at $8,285,520 USD and put options representing 652,800 of underlying shares valued at $2,578,560 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

LAC / Lithium Americas Corp. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F LITHIUM AMERS CORP COM SHS 53681J103 2,304,396 114,835 5.24 9,102 -4.65 0.0013
2026-02-17 2025-12-31 13F LITHIUM AMERS CORP COM SHS 53681J103 2,189,561 111,676 5.37 9,546 -19.54 0.0014
2025-11-14 2025-09-30 13F LITHIUM AMERS CORP COM SHS 53681J103 2,077,885 1,510,575 266.27 11,865 680.53 0.0018
2025-08-14 2025-06-30 13F LITHIUM AMERS CORP COM SHS 53681J103 567,310 567,310 1,520 0.0003
2025-05-15 2025-03-31 13F LITHIUM AMERS CORP COM SHS 53681J103 0 -5,862 -100.00 0 -100.00
2025-02-14 2024-12-31 13F LITHIUM AMERS CORP COM SHS 53681J103 5,862 -834,895 -99.30 17 -99.25 0.0000
2024-11-14 2024-09-30 13F LITHIUM AMERS CORP COM SHS 53681J103 840,757 -1,248,615 -59.76 2,270 -59.46 0.0004
2024-08-14 2024-06-30 13F LITHIUM AMERS CORP COM SHS 53681J103 2,089,372 2,038,848 4,035.40 5,600 1,551.62 0.0011
2024-05-15 2024-03-31 13F LITHIUM AMERS CORP COM SHS 53681J103 50,524 47,015 1,339.84 340 1,440.91 0.0001
2024-02-14 2023-12-31 13F LITHIUM AMERS CORP COM SHS 53681J103 3,509 3,509 22 0.0000
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F LITHIUM AMERS CORP COM SHS Call 2,097,600 23.38 8,286 11.78 n/a n/a n/a
2026-02-17 2025-12-31 13F LITHIUM AMERS CORP COM SHS Call 1,700,100 138.44 7,412 82.07 n/a n/a n/a
2025-11-14 2025-09-30 13F LITHIUM AMERS CORP COM SHS Call 713,000 464.53 4,071 1,104.44 n/a n/a n/a
2025-08-14 2025-06-30 13F LITHIUM AMERS CORP COM SHS Call 126,300 -51.31 338 -51.85 n/a n/a n/a
2025-05-15 2025-03-31 13F LITHIUM AMERS CORP COM SHS Call 259,400 -46.36 703 -51.11 n/a n/a n/a
2025-02-14 2024-12-31 13F LITHIUM AMERS CORP COM SHS Call 483,600 100.17 1,436 120.25 n/a n/a n/a
2024-11-14 2024-09-30 13F LITHIUM AMERS CORP COM SHS Call 241,600 12.90 652 13.79 n/a n/a n/a
2024-08-14 2024-06-30 13F LITHIUM AMERS CORP COM SHS Call 214,000 -26.99 574 -70.90 n/a n/a n/a
2024-05-15 2024-03-31 13F LITHIUM AMERS CORP COM SHS Call 293,100 -74.77 1,970 -73.51 n/a n/a n/a
2024-02-14 2023-12-31 13F LITHIUM AMERS CORP COM SHS Call 1,161,700 7,435 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F LITHIUM AMERS CORP COM SHS Put 652,800 -42.43 2,579 -47.86 n/a n/a n/a
2026-02-17 2025-12-31 13F LITHIUM AMERS CORP COM SHS Put 1,134,000 78.55 4,944 36.35 n/a n/a n/a
2025-11-14 2025-09-30 13F LITHIUM AMERS CORP COM SHS Put 635,100 171.06 3,626 478.31 n/a n/a n/a
2025-08-14 2025-06-30 13F LITHIUM AMERS CORP COM SHS Put 234,300 -29.56 628 -30.41 n/a n/a n/a
2025-05-15 2025-03-31 13F LITHIUM AMERS CORP COM SHS Put 332,600 -35.95 901 -41.57 n/a n/a n/a
2025-02-14 2024-12-31 13F LITHIUM AMERS CORP COM SHS Put 519,300 162.80 1,542 189.31 n/a n/a n/a
2024-11-14 2024-09-30 13F LITHIUM AMERS CORP COM SHS Put 197,600 49.81 534 50.99 n/a n/a n/a
2024-08-14 2024-06-30 13F LITHIUM AMERS CORP COM SHS Put 131,900 -38.45 353 -75.49 n/a n/a n/a
2024-05-15 2024-03-31 13F LITHIUM AMERS CORP COM SHS Put 214,300 -12.10 1,440 -7.69 n/a n/a n/a
2024-02-14 2023-12-31 13F LITHIUM AMERS CORP COM SHS Put 243,800 1,560 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.