Sigma Lithium Corporation
US ˙ NasdaqCM ˙ CA8265991023

SecuritySGML / Sigma Lithium Corporation
InstitutionBarclays Plc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Barclays Plc ownership in SGML / Sigma Lithium Corporation

On May 15, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 0 shares of Sigma Lithium Corporation (US:SGML) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 286,746 shares of Sigma Lithium Corporation. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Barclays Plc has a history of taking positions in derivatives of the underlying security (SGML) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

SGML / Sigma Lithium Corporation 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 SIGMA LITHIUM COM 826599102 0 -286,746 -100.00 0 -100.00
2026-02-13 2025-12-31 13F SIGMA LITHIUM COM 826599102 286,746 162,573 130.92 3,782 375.72 0.0009
2026-03-31 2025-09-30 13F/A-3 SIGMA LITHIUM COM 826599102 124,173 84,409 212.27 796 346.63 0.0002
2026-03-19 2025-09-30 13F/A-2 SIGMA LITHIUM COM 826599102 67,892 28,128 839 0.0002
2025-11-12 2025-09-30 13F SIGMA LITHIUM COM 826599102 124,173 84,409 796 0.0002
2026-02-27 2025-06-30 13F/A-2 SIGMA LITHIUM COM 826599102 39,764 -18,196 -31.39 179 -70.43 0.0000
2025-08-14 2025-06-30 13F/A-1 SIGMA LITHIUM COM 826599102 39,764 -18,196 0 0.0000
2025-08-13 2025-06-30 13F SIGMA LITHIUM COM 826599102 39,764 -18,196 0 0.0000
2026-03-17 2025-03-31 13F/A-1 SIGMA LITHIUM COM 826599102 57,960 -5,541 -8.73 603 -15.45 0.0002
2025-05-15 2025-03-31 13F SIGMA LITHIUM COM 826599102 57,960 -5,541 1 0.0002
2026-03-19 2024-12-31 13F/A-1 SIGMA LITHIUM COM 826599102 63,501 -4,391 -6.47 712 -15.14 0.0002
2025-02-13 2024-12-31 13F SIGMA LITHIUM COM 826599102 63,501 -4,391 1 0.0002
2026-03-31 2024-09-30 13F/A-2 SIGMA LITHIUM COM 826599102 67,892 -2,029 -2.90 839 -0.24 0.0002
2024-11-19 2024-09-30 13F/A-1 SIGMA LITHIUM COM 826599102 67,892 -2,029 1 0.0002
2024-11-15 2024-09-30 13F SIGMA LITHIUM COM 826599102 67,892 -2,029 1 0.0001
2026-03-23 2024-06-30 13F/A-1 SIGMA LITHIUM COM 826599102 69,921 -3,062 -4.20 841 -11.01 0.0003
2024-08-14 2024-06-30 13F SIGMA LITHIUM COM 826599102 69,921 -3,062 1 0.0003
2026-03-24 2024-03-31 13F/A-1 SIGMA LITHIUM COM 826599102 72,983 -128,610 -63.80 946 -85.13 0.0003
2024-05-15 2024-03-31 13F SIGMA LITHIUM COM 826599102 72,983 -128,610 1 0.0003
2026-03-25 2023-12-31 13F/A-1 SIGMA LITHIUM COM 826599102 201,593 162,947 421.64 6,356 407.26 0.0023
2024-02-15 2023-12-31 13F SIGMA LITHIUM COM 826599102 201,593 162,947 6 0.0023
2026-03-26 2023-09-30 13F/A-1 SIGMA LITHIUM COM 826599102 38,646 -100 -0.26 1,254 -19.73 0.0008
2023-11-07 2023-09-30 13F SIGMA LITHIUM COM 826599102 38,646 -100 1 0.0008
2026-03-30 2023-06-30 13F/A-2 SIGMA LITHIUM COM 826599102 38,746 1,760 4.76 1,561 12.22 0.0010
2023-09-20 2023-06-30 13F/A-1 SIGMA LITHIUM COM 826599102 38,746 1,760 2 0.0010
2023-08-03 2023-06-30 13F SIGMA LITHIUM COM 826599102 38,746 1,760 2 0.0010
2026-03-30 2023-03-31 13F/A-1 SIGMA LITHIUM COM 826599102 36,986 12,760 52.67 1,391 103.66 0.0006
2023-05-04 2023-03-31 13F SIGMA LITHIUM COM 826599102 36,986 12,760 1 0.0006
2026-03-30 2022-12-31 13F/A-1 SIGMA LITHIUM COM 826599102 24,226 18,826 348.63 684 367.81 0.0003
2023-02-13 2022-12-31 13F SIGMA LITHIUM COM 826599102 24,226 18,826 1 0.0003
2022-11-03 2022-09-30 13F SIGMA LITHIUM COM 826599102 5,400 5,400 146 0.0002
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
(%)
2024-11-19 2024-09-30 13F/A SIGMA LITHIUM OPT Call 0 0 n/a n/a n/a
2026-03-31 2024-09-30 13F/A SIGMA LITHIUM OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-15 2024-09-30 13F SIGMA LITHIUM OPT Call 0 0 n/a n/a n/a
2026-03-23 2024-06-30 13F/A SIGMA LITHIUM OPT Call 16,700 201 n/a n/a n/a
2024-08-14 2024-06-30 13F SIGMA LITHIUM OPT Call 16,700 0 n/a n/a n/a
2026-03-24 2024-03-31 13F/A SIGMA LITHIUM OPT Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F SIGMA LITHIUM OPT Call 0 0 n/a n/a n/a
2026-03-25 2023-12-31 13F/A SIGMA LITHIUM OPT Call 300,000 9,459 n/a n/a n/a
2024-02-15 2023-12-31 13F SIGMA LITHIUM OPT Call 300,000 9 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
(%)
2026-02-13 2025-12-31 13F SIGMA LITHIUM OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-03-19 2025-09-30 13F/A SIGMA LITHIUM OPT Put 16,700 206 n/a n/a n/a
2026-03-17 2025-03-31 13F/A SIGMA LITHIUM OPT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F SIGMA LITHIUM OPT Put 0 0 n/a n/a n/a
2026-03-19 2024-12-31 13F/A SIGMA LITHIUM OPT Put 16,700 0.00 187 -9.22 n/a n/a n/a
2025-02-13 2024-12-31 13F SIGMA LITHIUM OPT Put 16,700 0 n/a n/a n/a
2024-11-19 2024-09-30 13F/A SIGMA LITHIUM OPT Put 16,700 0 n/a n/a n/a
2026-03-31 2024-09-30 13F/A SIGMA LITHIUM OPT Put 16,700 206 n/a n/a n/a
2024-11-15 2024-09-30 13F SIGMA LITHIUM OPT Put 16,700 0 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.