https://insiderfilingsdata.com/blog/Daily insider buying reports, cluster buys, insider sentiment, Trader Atlas profiles, seasonal windows and chart-pattern studies, built from SEC Form 4 filings.en-ushttps://insiderfilingsdata.com/blog/2026/10/14/trader-atlas-ra-capital-nexus-fund-l-p/https://insiderfilingsdata.com/blog/2026/10/14/trader-atlas-ra-capital-nexus-fund-l-p/Wed, 14 Oct 2026 07:00:00 -0400RA Capital Nexus Fund, L.P.'s open-market insider purchases from SEC Form 4: 21 buys across 9 tickers since 2020, median excess return +2.6% over the next 63 trading days vs SPY, $537.3M bought in total.Trader Atlashttps://insiderfilingsdata.com/blog/2026/10/13/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/13/insider-buying-report/Wed, 14 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 13, 2026: 44 buys worth $55.0M across 35 companies, plus 27 insider sales of $1M or more ($776.6M). Largest: Cohen Ryan at GME, $22.8M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/13/insider-cluster-buys/https://insiderfilingsdata.com/blog/2026/10/13/insider-cluster-buys/Tue, 13 Oct 2026 07:00:00 -040094 insider buying clusters ended in the last 45 days. Top score: GameStop Corp. (GME), 5 buyers, $76.4M, score 100/100. Ranked list with buyer counts, dollar totals and price move since the cluster.Cluster buyshttps://insiderfilingsdata.com/blog/2026/10/12/insider-sentiment-week/https://insiderfilingsdata.com/blog/2026/10/12/insider-sentiment-week/Mon, 12 Oct 2026 07:00:00 -0400Market-wide insider buying vs selling for the week starting Oct 5, 2026: 166 open-market buys, 597 sales, a 22% buy share against a 52-week average of 25%. Charted from SEC Form 4 filings.Sentimenthttps://insiderfilingsdata.com/blog/2026/10/11/stock-of-the-week-tsm/https://insiderfilingsdata.com/blog/2026/10/11/stock-of-the-week-tsm/Sun, 11 Oct 2026 07:00:00 -0400TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) had the most distinct insider buyers of any US stock in the week to Oct 9, 2026: 30 insiders, $121k. Two-year record: 227 open-market buys, 1 $1M+ sales. Filings, roles and the price chart.Stock of the weekhttps://insiderfilingsdata.com/blog/2026/10/10/insider-trading-week-in-review/https://insiderfilingsdata.com/blog/2026/10/10/insider-trading-week-in-review/Sat, 10 Oct 2026 07:00:00 -0400Week in insider filings: 156 open-market purchases worth $461.3M across 78 companies, 132 sales of $1M+ worth $2.50B. Biggest buy: Berkshire Hathaway Inc at LEN, $192.6M. Most buyers: TSM (30).Weekly recaphttps://insiderfilingsdata.com/blog/2026/10/09/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/09/insider-buying-report/Sat, 10 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 9, 2026: 31 buys worth $106.5M across 26 companies, plus 18 insider sales of $1M or more ($96.1M). Largest: Yin Chung-Yao at GGR, $35.1M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/09/chart-pattern-death-cross/https://insiderfilingsdata.com/blog/2026/10/09/chart-pattern-death-cross/Fri, 09 Oct 2026 07:00:00 -0400We measured every 'Death cross' across 8,057 US stocks since 1994: 49,646 occurrences. Market-adjusted return over the next 21 trading days: -0.27% before 2018, -0.68% since. Verdict: no reliable signal.Formationshttps://insiderfilingsdata.com/blog/2026/10/08/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/08/insider-buying-report/Fri, 09 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 8, 2026: 51 buys worth $45.6M across 19 companies, plus 22 insider sales of $1M or more ($337.6M). Largest: Huang Jack Jiajia at COE, $32.3M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/08/seasonal-windows-opening/https://insiderfilingsdata.com/blog/2026/10/08/seasonal-windows-opening/Thu, 08 Oct 2026 07:00:00 -040053 seasonal stock patterns start between Oct 8, 2026 and Oct 29, 2026, each found on pre-2018 data and repeated in at least 75% of the years since. Strongest: Mettler Toledo International Inc/ (MTD), up in 25 of 28 years from Oct 28, 2026.Seasonalhttps://insiderfilingsdata.com/blog/2026/10/07/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/07/insider-buying-report/Thu, 08 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 7, 2026: 18 buys worth $11.3M across 14 companies, plus 30 insider sales of $1M or more ($235.9M). Largest: Troim Tor Olav at BORR, $6.4M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/07/trader-atlas-667-l-p/https://insiderfilingsdata.com/blog/2026/10/07/trader-atlas-667-l-p/Wed, 07 Oct 2026 07:00:00 -0400667, L.P.'s open-market insider purchases from SEC Form 4: 47 buys across 12 tickers since 2019, median excess return +8.1% over the next 63 trading days vs SPY, $1.47B bought in total.Trader Atlashttps://insiderfilingsdata.com/blog/2026/10/06/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/06/insider-buying-report/Wed, 07 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 6, 2026: 17 buys worth $45.0M across 16 companies, plus 14 insider sales of $1M or more ($1.01B). Largest: Ryan Israel at PSUS, $9.6M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/06/insider-cluster-buys/https://insiderfilingsdata.com/blog/2026/10/06/insider-cluster-buys/Tue, 06 Oct 2026 07:00:00 -0400102 insider buying clusters ended in the last 45 days. Top score: GameStop Corp. (GME), 5 buyers, $76.4M, score 100/100. Ranked list with buyer counts, dollar totals and price move since the cluster.Cluster buyshttps://insiderfilingsdata.com/blog/2026/10/05/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/05/insider-buying-report/Tue, 06 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 5, 2026: 39 buys worth $252.8M across 31 companies, plus 48 insider sales of $1M or more ($821.5M). Largest: Berkshire Hathaway Inc at LEN, $192.6M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/05/insider-sentiment-week/https://insiderfilingsdata.com/blog/2026/10/05/insider-sentiment-week/Mon, 05 Oct 2026 07:00:00 -0400Market-wide insider buying vs selling for the week starting Sep 28, 2026: 264 open-market buys, 422 sales, a 38% buy share against a 52-week average of 25%. Charted from SEC Form 4 filings.Sentimenthttps://insiderfilingsdata.com/blog/2026/10/04/stock-of-the-week-spg/https://insiderfilingsdata.com/blog/2026/10/04/stock-of-the-week-spg/Sun, 04 Oct 2026 07:00:00 -0400SIMON PROPERTY GROUP INC. (SPG) had the most distinct insider buyers of any US stock in the week to Oct 2, 2026: 11 insiders, $461k. Two-year record: 98 open-market buys, 1 $1M+ sales. Filings, roles and the price chart.Stock of the weekhttps://insiderfilingsdata.com/blog/2026/10/03/insider-trading-week-in-review/https://insiderfilingsdata.com/blog/2026/10/03/insider-trading-week-in-review/Sat, 03 Oct 2026 07:00:00 -0400Week in insider filings: 240 open-market purchases worth $577.1M across 133 companies, 121 sales of $1M+ worth $1.18B. Biggest buy: Conifer Management, L.L.C. at GPI, $66.3M. Most buyers: SPG (11).Weekly recaphttps://insiderfilingsdata.com/blog/2026/10/02/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/02/insider-buying-report/Sat, 03 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 2, 2026: 41 buys worth $49.0M across 31 companies, plus 44 insider sales of $1M or more ($244.0M). Largest: Cohen Ryan at GME, $17.1M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/02/chart-pattern-golden-cross/https://insiderfilingsdata.com/blog/2026/10/02/chart-pattern-golden-cross/Fri, 02 Oct 2026 07:00:00 -0400We measured every 'Golden cross' across 8,043 US stocks since 1994: 47,655 occurrences. Market-adjusted return over the next 21 trading days: -0.08% before 2018, -1.21% since. Verdict: no reliable signal.Formationshttps://insiderfilingsdata.com/blog/2026/10/01/insider-buying-report/https://insiderfilingsdata.com/blog/2026/10/01/insider-buying-report/Fri, 02 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Oct 1, 2026: 64 buys worth $31.6M across 43 companies, plus 20 insider sales of $1M or more ($159.5M). Largest: Life Insurance Co Nippon at CRBG, $7.3M.Daily reporthttps://insiderfilingsdata.com/blog/2026/10/01/seasonal-windows-opening/https://insiderfilingsdata.com/blog/2026/10/01/seasonal-windows-opening/Thu, 01 Oct 2026 07:00:00 -040017 seasonal stock patterns start between Oct 1, 2026 and Oct 22, 2026, each found on pre-2018 data and repeated in at least 75% of the years since. Strongest: Mitek Systems Inc (MITK), up in 28 of 34 years from Sep 8, 2026.Seasonalhttps://insiderfilingsdata.com/blog/2026/09/30/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/30/insider-buying-report/Thu, 01 Oct 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 30, 2026: 55 buys worth $353.9M across 41 companies, plus 21 insider sales of $1M or more ($231.0M). Largest: Conifer Management, L.L.C. at GPI, $66.3M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/30/trader-atlas-baker-bros-advisors-gp-llc/https://insiderfilingsdata.com/blog/2026/09/30/trader-atlas-baker-bros-advisors-gp-llc/Wed, 30 Sep 2026 07:00:00 -0400Baker Bros. Advisors (GP) LLC's open-market insider purchases from SEC Form 4: 55 buys across 16 tickers since 2019, median excess return +9.4% over the next 63 trading days vs SPY, $1.51B bought in total.Trader Atlashttps://insiderfilingsdata.com/blog/2026/09/29/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/29/insider-buying-report/Wed, 30 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 29, 2026: 36 buys worth $93.0M across 32 companies, plus 17 insider sales of $1M or more ($161.0M). Largest: George Simeon at ADRX, $27.2M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/29/insider-cluster-buys/https://insiderfilingsdata.com/blog/2026/09/29/insider-cluster-buys/Tue, 29 Sep 2026 07:00:00 -040099 insider buying clusters ended in the last 45 days. Top score: Cardinal Infrastructure Group Inc. (CDNL), 7 buyers, $8.5M, score 93/100. Ranked list with buyer counts, dollar totals and price move since the cluster.Cluster buyshttps://insiderfilingsdata.com/blog/2026/09/28/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/28/insider-buying-report/Tue, 29 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 28, 2026: 44 buys worth $49.6M across 36 companies, plus 19 insider sales of $1M or more ($384.5M). Largest: Conifer Management, L.L.C. at GPI, $31.5M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/28/insider-sentiment-week/https://insiderfilingsdata.com/blog/2026/09/28/insider-sentiment-week/Mon, 28 Sep 2026 07:00:00 -0400Market-wide insider buying vs selling for the week starting Sep 21, 2026: 227 open-market buys, 457 sales, a 33% buy share against a 52-week average of 25%. Charted from SEC Form 4 filings.Sentimenthttps://insiderfilingsdata.com/blog/2026/09/27/stock-of-the-week-bbd/https://insiderfilingsdata.com/blog/2026/09/27/stock-of-the-week-bbd/Sun, 27 Sep 2026 07:00:00 -0400BANK BRADESCO (BBD) had the most distinct insider buyers of any US stock in the week to Sep 25, 2026: 21 insiders, $27.0M. Two-year record: 23 open-market buys, 2 $1M+ sales. Filings, roles and the price chart.Stock of the weekhttps://insiderfilingsdata.com/blog/2026/09/26/insider-trading-week-in-review/https://insiderfilingsdata.com/blog/2026/09/26/insider-trading-week-in-review/Sat, 26 Sep 2026 07:00:00 -0400Week in insider filings: 206 open-market purchases worth $652.8M across 134 companies, 138 sales of $1M+ worth $2.04B. Biggest buy: Berkshire Hathaway Inc at LEN, LEN.B, $212.4M. Most buyers: BBD (21).Weekly recaphttps://insiderfilingsdata.com/blog/2026/09/25/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/25/insider-buying-report/Sat, 26 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 25, 2026: 32 buys worth $154.8M across 29 companies, plus 17 insider sales of $1M or more ($457.1M). Largest: Berkshire Hathaway Inc at LEN, $136.4M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/25/chart-pattern-overbought-rsi-above-70/https://insiderfilingsdata.com/blog/2026/09/25/chart-pattern-overbought-rsi-above-70/Fri, 25 Sep 2026 07:00:00 -0400We measured every 'Overbought: RSI above 70' across 8,029 US stocks since 1994: 2,606,324 occurrences. Market-adjusted return over the next 21 trading days: -0.09% before 2018, -1.26% since. Verdict: repeats, negative.Formationshttps://insiderfilingsdata.com/blog/2026/09/24/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/24/insider-buying-report/Fri, 25 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 24, 2026: 30 buys worth $27.7M across 26 companies, plus 23 insider sales of $1M or more ($301.9M). Largest: Life Insurance Co Nippon at CRBG, $10.2M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/24/seasonal-windows-opening/https://insiderfilingsdata.com/blog/2026/09/24/seasonal-windows-opening/Thu, 24 Sep 2026 07:00:00 -040015 seasonal stock patterns start between Sep 24, 2026 and Oct 15, 2026, each found on pre-2018 data and repeated in at least 75% of the years since. Strongest: Mitek Systems Inc (MITK), up in 28 of 34 years from Sep 8, 2026.Seasonalhttps://insiderfilingsdata.com/blog/2026/09/23/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/23/insider-buying-report/Thu, 24 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 23, 2026: 39 buys worth $75.1M across 37 companies, plus 34 insider sales of $1M or more ($242.4M). Largest: Orbimed Advisors Llc at ETRA, $20.0M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/23/trader-atlas-biotechnology-value-trading-fund-os-lp/https://insiderfilingsdata.com/blog/2026/09/23/trader-atlas-biotechnology-value-trading-fund-os-lp/Wed, 23 Sep 2026 07:00:00 -0400Biotechnology Value Trading Fund OS LP's open-market insider purchases from SEC Form 4: 66 buys across 11 tickers since 2019, median excess return +10.3% over the next 63 trading days vs SPY, $321.3M bought in total.Trader Atlashttps://insiderfilingsdata.com/blog/2026/09/22/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/22/insider-buying-report/Wed, 23 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 22, 2026: 60 buys worth $26.2M across 41 companies, plus 21 insider sales of $1M or more ($492.1M). Largest: Life Insurance Co Nippon at CRBG, $4.6M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/22/insider-cluster-buys/https://insiderfilingsdata.com/blog/2026/09/22/insider-cluster-buys/Tue, 22 Sep 2026 07:00:00 -0400110 insider buying clusters ended in the last 45 days. Top score: Cardinal Infrastructure Group Inc. (CDNL), 7 buyers, $8.5M, score 93/100. Ranked list with buyer counts, dollar totals and price move since the cluster.Cluster buyshttps://insiderfilingsdata.com/blog/2026/09/21/insider-buying-report/https://insiderfilingsdata.com/blog/2026/09/21/insider-buying-report/Tue, 22 Sep 2026 07:00:00 -0400Every open-market insider purchase filed with the SEC on Sep 21, 2026: 45 buys worth $369.0M across 37 companies, plus 43 insider sales of $1M or more ($545.7M). Largest: Berkshire Hathaway Inc at LEN, LEN.B, $212.4M.Daily reporthttps://insiderfilingsdata.com/blog/2026/09/21/insider-sentiment-week/https://insiderfilingsdata.com/blog/2026/09/21/insider-sentiment-week/Mon, 21 Sep 2026 07:00:00 -0400Market-wide insider buying vs selling for the week starting Sep 14, 2026: 317 open-market buys, 902 sales, a 26% buy share against a 52-week average of 24%. Charted from SEC Form 4 filings.Sentiment