InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (1 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
1
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the detailed record of transactions filed by Anderson Karli S., Executive. Insider active across 2 companies, notably Summit Materials, Inc.. Cumulatively, 16 filings have been logged. Split: 0 buy · 1 sell. Total volume traded: €33k. Activity tracked since 7 March 2024. The latest transaction was disclosed on 7 August 2026 (Cession). Regulator: SEC (Form 4). The full history is free.
Companies and markets linked to Anderson Karli S.
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations16 total
50,000 shares@ US$0.76040.039% mcap4.6% of flowCommon StockSEC:0001104659-26-094271:0
200,000 shares0Common StockSEC:0001104659-26-067111:0
224,519 shares@ US$0.488893.3% of flowCommon StockSEC:0001104659-25-099411:0
16,390 shares@ US$0.4776.7% of flowCommon StockSEC:0001104659-25-099411:1
400,000 shares0Common StockSEC:0001104659-25-054386:0
48,285 shares@ US$52.50100.0% of flowClass A Common StockSEC:0000950103-25-001827:0
7,587 shares0Class A Common StockSEC:0001628280-25-001884:0
2,409 sharesClass A Common StockSEC:0001628280-24-052432:0
11,420 shares0Class A Common StockSEC:0001628280-24-010118:0
2,369 sharesClass A Common StockSEC:0001628280-24-008672:0
2,201 sharesClass A Common StockSEC:0001628280-23-005898:0
1,000 sharesClass A Common StockSEC:0001628280-22-024381:0
5,710 sharesClass A Common StockSEC:0001628280-22-019991:0
2,201 sharesClass A Common StockSEC:0001628280-22-004586:0
1,000 sharesClass A Common StockSEC:0001628280-21-018236:0
5,711 sharesClass A Common StockSEC:0001104659-21-099513:0
16 of 16 declarations
About Anderson Karli S.
Anderson Karli S. is an executive associated with Summit Materials, Inc. and Westwater Resources, INC., where he is a director. He has 15 filings in total, and across the sampled recent filings from 2021-08-03 to 2026-05-27, the amounts shown are 0 in purchases and 2458356 in sales, with the modal transaction nature listed as Option exercise.
