Insider Profile
Freire de Paiva, Marcelo
$SGML
1
Companies Filed At
76
Open-Market Buys (2yr)
$20.2M
Buy Value (2yr, open-market)
Jun 26, 2026
Most Recent Trade
78
Credibility
Score
73%
Hit Rate
+41.0%
Avg 90d Return
+47.4%
Median 90d Return
22
Evaluated Trades
+134.2%
Best Trade
-62.9%
Worst Trade
Hit rate and returns are based on 22 open-market buys with evaluable 90-day outcomes. Score reflects historical conviction, not a guarantee of future performance. This insider ranks among the highest-credibility tracked on Form55.
Cross-Company Track Record
90%
Hit Rate · 90d
+30.8%
Median Alpha · 90d
21
Closed Buys Evaluated
90%
Beat XIU
All-insider base rate: 59% hit rate  · +1.3% mean alpha (n=11504)
cluster buyer high frequency size concentrated
Entry: closing price on SEDI filing date (point-in-time). Exit: 90 calendar days later. Alpha vs XIU.TO (iShares TSX 60). Closed trades only. Not investment advice.
Research 21 closed buys with individual return outcomes available on the Research plan.
Currently Accumulating Companies this insider is net-buying on the open market over the last 90 days
$SGML 85
Sigma Lithium Corporation
$1.4M · 13 buys
Last buy Jun 26, 2026
Date Company Role Nature Dir. Shares Price Value Score
Jun 26, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $11.70 $58K 85
Jun 25, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.10 $60K 85
Jun 24, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $12.40 $124K 85
Jun 08, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $13.30 $66K 85
Jun 05, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $13.75 $69K 85
Jun 05, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $13.40 $134K 85
May 27, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $14.50 $145K 85
May 26, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $15.15 $152K 85
May 22, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $15.20 $76K 85
May 18, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $14.64 $73K 85
May 18, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $14.60 $146K 85
May 15, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $16.97 $170K 85
May 15, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $16.80 $168K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 6,550 $21.44 $140K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $21.27 $1.1M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 100,000 $20.38 $2.0M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $20.70 $207K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 80,000 $21.00 $1.7M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 100,000 $20.48 $2.0M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 100,000 $20.08 $2.0M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $21.50 $215K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $21.31 $213K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $21.44 $214K 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $21.25 $1.1M 85
Apr 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $21.25 $1.1M 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $13.60 $68K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $13.55 $68K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.30 $62K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $12.85 $129K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $12.51 $125K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.40 $62K 85
Mar 31, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $12.24 $122K 85
Mar 30, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $11.57 $58K 85
Mar 30, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $11.85 $59K 85
Mar 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $9.00 $45K 85
Mar 19, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $9.85 $49K 85
Mar 18, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $10.80 $54K 85
Mar 18, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $10.51 $53K 85
Mar 13, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $11.40 $57K 85
Mar 13, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $10.97 $55K 85
Mar 13, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $11.40 $57K 85
Mar 09, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 2,000 $11.97 $24K 85
Feb 27, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 1,000 $14.32 $14K 85
Feb 26, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 1,000 $14.60 $15K 85
Feb 26, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 1,000 $15.40 $15K 85
Feb 24, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.88 $64K 85
Feb 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.52 $63K 85
Feb 20, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.52 $63K 85
Feb 17, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.51 $63K 85
Feb 17, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $12.51 $63K 85
Feb 13, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $13.20 $66K 85
Jan 16, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 8,500 $11.75 $100K 85
Jan 16, 2026 $SGML
Sigma Lithium Corporation
— Open Market Buy 16,300 $12.30 $200K 85
Nov 21, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 25,000 $9.70 $242K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $9.57 $478K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $9.95 $498K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $10.90 $545K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 100,000 $9.76 $976K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $10.90 $545K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 20,197 $11.35 $229K 85
Nov 19, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 50,000 $10.63 $531K 85
Nov 14, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 9,000 $5.49 $49K 85
Nov 03, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 1,000 $5.00 $5K 85
Nov 03, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 4,165 $4.80 $20K 85
Nov 03, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 14,970 $5.01 $75K 85
Nov 03, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 56,872 $5.26 $299K 85
Oct 29, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 8,850 $5.73 $51K 85
Oct 29, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 8,850 $5.73 $51K 85
Sep 29, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 1,000 $7.09 $7K 85
Sep 29, 2025 $SGML
Sigma Lithium Corporation
— Exercise Buy 26,000 — — 85
Sep 29, 2025 $SGML
Sigma Lithium Corporation
— Exercise Sell 26,000 — — 85
Sep 26, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $7.01 $35K 85
Sep 25, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $7.22 $72K 85
Sep 25, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $7.27 $36K 85
Sep 25, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 5,000 $7.28 $36K 85
Aug 27, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $6.50 $65K 85
Aug 27, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 10,000 $6.50 $65K 85
Jul 01, 2025 $SGML
Sigma Lithium Corporation
— Expiry Sell 15,000 — — 85
Jun 25, 2025 $SGML
Sigma Lithium Corporation
— Open Market Buy 2,000 $4.29 $9K 85
Oct 28, 2024 $SGML
Sigma Lithium Corporation
— Comp. Grant Buy 41,000 — — 85
Aug 06, 2024 $SGML
Sigma Lithium Corporation
— Exercise Sell 50,000 — — 85
Aug 06, 2024 $SGML
Sigma Lithium Corporation
— Exercise Buy 50,000 — — 85
Jul 30, 2024 $SGML
Sigma Lithium Corporation
— Ownership Chg Buy 25,000 — — 85
Jul 30, 2024 $SGML
Sigma Lithium Corporation
— Ownership Chg Sell 25,000 — — 85
Jul 29, 2024 $SGML
Sigma Lithium Corporation
— Open Market Sell 37,300 — — 85
Jul 10, 2024 $SGML
Sigma Lithium Corporation
— Expiry Sell 15,000 — — 85
Jul 08, 2024 $SGML
Sigma Lithium Corporation
— Comp. Grant Buy 30,000 — — 85
Jun 03, 2024 $SGML
Sigma Lithium Corporation
— Exercise Sell 32,500 — — 85
Jun 03, 2024 $SGML
Sigma Lithium Corporation
— Exercise Buy 32,500 — — 85
Dec 29, 2023 $SGML
Sigma Lithium Corporation
— Exercise Sell 42,500 — — 85
Dec 29, 2023 $SGML
Sigma Lithium Corporation
— Exercise Buy 42,500 — — 85
Dec 26, 2023 $SGML
Sigma Lithium Corporation
— Comp. Grant Buy 25,000 — — 85
Jun 29, 2023 $SGML
Sigma Lithium Corporation
— Comp. Grant Buy 85,000 — — 85
Nov 01, 2022 $SGML
Sigma Lithium Corporation
— Ownership Chg Buy 470,560 — — 85
Nov 01, 2022 $SGML
Sigma Lithium Corporation
— Ownership Chg Sell 470,560 — — 85
Feb 11, 2022 $SGML
Sigma Lithium Corporation
— Exercise Buy 532,860 $4.40 $2.3M 85
Feb 11, 2022 $SGML
Sigma Lithium Corporation
— Exercise Sell 532,860 $4.40 $2.3M 85
Feb 12, 2021 $SGML
Sigma Lithium Corporation
— Comp. Grant Buy 532,860 — — 85
Muted rows are plan purchases, compensation grants, or DRIP — not open-market. Confluence Scores reflect the company's current score, not the score at time of trade.
Form55 provides data and analysis for informational purposes only. Nothing on this site constitutes investment advice or a recommendation to buy or sell any security. Past performance is not indicative of future results.