PowerBuy: Large insider purchases over $100k USD
Cluster: Multiple insiders buying within a 3-month period
ReBuy: Repeat purchases that are larger than previous ones
Significant: Notable insider trading activity patterns
Brazil Insider Transactions
Track insider trading activity from companies based in Brazil. Monitor significant purchases, clusters of activity, and rebuy patterns.
Recent Insider Activity
14 transactions found
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 121K USD
Transaction: 2/3/2026
ReBuy
2/4/2026
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$55,386.50
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$55,386.50
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 1.1M USD
Transaction: 2/3/2026
PowerBuy
2/4/2026
Insider made a purchase larger than 100k USD:
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$55,386.50
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-02-03 Freire de Paiva, Marcelo made a Purchase totalling US$55,386.50
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
... and 8 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 202K USD
Transaction: 1/30/2026
ReBuy
1/31/2026
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$80,908.10
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$80,908.10
... and 1 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 997K USD
Transaction: 1/30/2026
PowerBuy
1/31/2026
Insider made a purchase larger than 100k USD:
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$80,908.10
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$55,500.00
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,000.00
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$80,908.10
* On 2026-01-30 Freire de Paiva, Marcelo made a Purchase totalling US$55,500.00
... and 6 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 803K USD
Transaction: 1/29/2026
PowerBuy
1/30/2026
Insider made a purchase larger than 100k USD:
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$119,000.00
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$122,987.00
* On 2026-01-28 Freire de Paiva, Marcelo made a Purchase totalling US$128,000.00
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$119,000.00
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$122,987.00
* On 2026-01-28 Freire de Paiva, Marcelo made a Purchase totalling US$128,000.00
... and 3 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 251K USD
Transaction: 1/29/2026
ReBuy
1/30/2026
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$119,000.00
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$122,987.00
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$119,000.00
* On 2026-01-29 Freire de Paiva, Marcelo made a Purchase totalling US$122,987.00
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 433K USD
Transaction: 1/26/2026
PowerBuy
1/27/2026
Insider made a purchase larger than 100k USD:
* On 2026-01-26 Freire de Paiva, Marcelo made a Purchase totalling US$132,868.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
* On 2026-01-26 Freire de Paiva, Marcelo made a Purchase totalling US$132,868.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 141K USD
Transaction: 1/26/2026
ReBuy
1/27/2026
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-26 Freire de Paiva, Marcelo made a Purchase totalling US$132,868.00
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-26 Freire de Paiva, Marcelo made a Purchase totalling US$132,868.00
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 309K USD
Transaction: 1/16/2026
ReBuy
1/21/2026
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 300K USD
Transaction: 1/16/2026
PowerBuy
1/21/2026
Insider made a purchase larger than 100k USD:
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$200,490.00
* On 2026-01-16 Freire de Paiva, Marcelo made a Purchase totalling US$99,873.30
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
408K USD
≈ 408K USD
Transaction: 11/3/2025
ReBuy
11/4/2025
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 299,073
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 19,992
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 299,073
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 19,992
... and 2 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
1.1M USD
≈ 1.1M USD
Transaction: 11/3/2025
PowerBuy
11/4/2025
Insider made a purchase larger than 100k USD:
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 299,073
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 19,992
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 5,000
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 299,073
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 19,992
* On 2025-11-03 Freire de Paiva, Marcelo made a Purchase totalling USD 5,000
... and 14 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
759K USD
≈ 759K USD
Transaction: 10/29/2025
ReBuy
10/30/2025
Insider has made a repeat purchase that is larger than the first one:
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,880
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,877
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,880
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,877
... and 11 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
751K USD
≈ 751K USD
Transaction: 10/29/2025
PowerBuy
10/30/2025
Insider made a purchase larger than 100k USD:
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,880
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,877
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,960
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,880
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,877
* On 2025-10-29 Freire de Paiva, Marcelo made a Purchase totalling USD 22,960
... and 10 more transactions
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