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
15 transactions found
Vale SA
BR
Market Cap: 69.07B
Industry: Industrial Materials
0 USD
≈ 209K USD
Transaction: 4/1/2026
PowerBuy
4/6/2026
Insider made a purchase larger than 100k USD:
* On 2026-04-01 Arap Sobrinho Sami made a Purchase totalling US$209,290
* On 2026-04-01 Arap Sobrinho Sami made a Purchase totalling US$209,290
Vale S.A.
BR
Market Cap: 69.07B
Industry: Industrial Materials
0 USD
≈ 209K USD
Transaction: 4/1/2026
PowerBuy
4/5/2026
Insider made a purchase larger than 100k USD:
* On 2026-04-01 Arap Sobrinho Sami made a Purchase totalling US$209,290
* On 2026-04-01 Arap Sobrinho Sami made a Purchase totalling US$209,290
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 126K USD
Transaction: 3/30/2026
ReBuy
4/1/2026
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 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,865
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$59,250
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,865
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$59,250
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 224K USD
Transaction: 3/30/2026
PowerBuy
4/1/2026
Insider made a purchase larger than 100k USD:
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,865
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$59,250
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$57,865
* On 2026-03-30 Freire de Paiva, Marcelo made a Purchase totalling US$59,250
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
... and 1 more transactions
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
0 USD
≈ 107K USD
Transaction: 3/18/2026
PowerBuy
3/19/2026
Insider made a purchase larger than 100k USD:
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$52,550
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$52,550
Sigma Lithium Corp
BR
Market Cap: 1.39B
Industry: Other Industrial Metals & Mining
8.6K USD
≈ 115K USD
Transaction: 3/18/2026
ReBuy
3/19/2026
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 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$52,550
* On 2025-06-25 Freire de Paiva, Marcelo made a Purchase totalling USD 8,578
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$54,000
* On 2026-03-18 Freire de Paiva, Marcelo made a Purchase totalling US$52,550
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
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