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SC 13G ·Filed Oct 7, 2026

SGML

Sigma Lithium Corp
NEUTRAL
Impact 4/10
Horizonweeks Processed19d 16h ago SEC0001817646-26-000030
Passive investor 5%+ stake
Actionable Insight • Neutral

Monitor for any subsequent conversion to a 13D (activist filing) or further stake increases. The 10.2% stake is large enough to be influential in a shareholder vote, but the passive certification suggests no near-term activist intent.

DirectionNeutral
Confidencehigh
Horizonweeks
Latest settled — T+5d
SGML ▼ -13.89% at T+5d
NEUTRAL call -13.89% · α vs SPY -12.91% · entry $9.86 → $8.49
Next anchor: T+20d in 8d
Latest observation: T+12 -7.42% FF3 residual α
Entry = T+0 close
Oct 7, 2026
via day close
T+1d
-3.04%
call -3.04% · α -2.62%
$9.56
settled 19d ago
T+5d
-13.89%
call -13.89% · α -12.91%
$8.49
settled 13d ago
T+20d
Pending
in 8d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

L1 Capital Pty Ltd, an Australian investment manager, disclosed a 10.2% passive stake in Sigma Lithium Corp via a Schedule 13G filing. The 11,522,140 common shares were acquired in the ordinary course of business with no intent to influence control. This is a new 5%+ passive disclosure from this filer, indicating a notable institutional vote of confidence from a sizable institutional investor.

Key Financial Metrics

Stake
10.2357%
Investor
L1 Capital Pty Ltd

Key Facts

  • L1 Capital Pty Ltd filed a new Schedule 13G disclosing beneficial ownership of 11,522,140 common shares of Sigma Lithium Corp as of September 30, 2026.
  • The stake represents 10.2357% of the 112,568,313 shares outstanding.
  • The filer certifies the securities were acquired and held in the ordinary course of business with no purpose of changing or influencing control.
  • The shares are held across multiple L1 Capital funds including L1 Long Short Fund Limited, L1 Capital Long Short Fund, and others.

Financial Impact

10.2% passive stake disclosed; no transaction value provided in filing.

ownershipshare count

Risk Factors

  • L1 Capital could later convert to a 13D and become activist, changing the investment thesis.
  • Lithium market volatility could impact Sigma Lithium's stock price independent of this filing.

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
SC 13G Filing (Primary)0001817646-26-000030
Document: 0001817646-26-000030-index.html0001817646-26-000030
Document: 0001817646-26-000030.txt0001817646-26-000030
17 reports for SGML
Performance horizon
50% Hit rate @ T+5 3 of 6 directional calls Went positive at some point 3 of 6 best @ T+20▲ +72.90%Mar 30, 2026
Filters
Rows
Reports for SGML — sortable, filterable
TypeNow
Oct 23, 2026
3d ago
6-K
NEUTRAL ★ 4/10
$7.83awaiting T+5—$7.86 (+0.38%)
Oct 7, 2026
19d ago
SC 13G
NEUTRAL ★ 4/10
$9.86 $8.49▼ −13.89%▼ −12.91%$7.86 (−20.28%)
Oct 6, 2026
20d ago
6-K
BULLISH ★ 6/10
$9.86 $8.49▼ −13.89%▼ −12.91%$7.86 (−20.28%)
Oct 1, 2026
25d ago
6-K
BEARISH ★ 7/10
$8.34 $9.56▼ −14.70%▼ −13.40%$7.86 (+5.70%)
Sep 28, 2026
28d ago
6-K
NEUTRAL ★ 4/10
$9.50 $9.56▲ +0.63%▼ −0.57%$7.86 (−17.26%)
Sep 8, 2026
6w ago
6-K
BEARISH ★ 5/10
$10.43 $8.91▲ +14.57%▲ +13.91%$7.86 (+24.64%)
Sep 4, 2026
7w ago
6-K
NEUTRAL ★ 4/10
$12.39 $8.91▼ −28.09%▼ −26.88%$7.86 (−36.56%)
Aug 14, 2026
10w ago
6-K
MIXED ★ 6/10
$11.99 $11.97▼ −0.17%▲ +1.20%$7.86 (−34.45%)
Aug 5, 2026
11w ago
6-K
NEUTRAL ★ 3/10
$10.55 $11.82▲ +12.04%▲ +11.69%$7.86 (−25.50%)
Jul 15, 2026
14w ago
6-K
NEUTRAL ★ 2/10
$10.29 $10.02▼ −2.62%▼ −0.95%$7.86 (−23.62%)
Showing 10 of 17

US Market Status

Market Closed — Opens Wed (11h 9m)

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Report published Oct 7, 2026