Recent insider buying.
The latest open-market Form 4 purchases — 60 buys filed Oct 1 – Oct 16, 2026 — when company insiders buy their own stock, they file with the SEC within two business days and it shows up here, sourced directly from those public filings.
Latest weekly edition: Oct 7, 2026 → · All insights
Cluster-buy signals
See all 63 →Stocks where 2+ insiders are buying — a stronger pattern than any single trade. Ordered by insider-activity score, then by number of distinct buyers.
Latest open-market purchases
60 Form 4 purchase rows · 50 lines · same filer, company and day shown as one line
| Symbol | Insider | Role | Shares | Price | Date |
|---|---|---|---|---|---|
| NBIS | Arne Grimme 10b5-1 box checked | Director | 148 | $169.99 | Oct 16, 2026 |
| APLD | Jason Gechen Zhang 10b5-1 box not checked | President | 300,000 | $18.86 | Oct 16, 2026 |
| APLD | Wes Cummins 10b5-1 box not checked | Director & Officer | 55,803 | $18.04 | Oct 16, 2026 |
| NBIS | Arne Grimme 10b5-1 box checked | Director | 148 | $169.99 | Oct 15, 2026 |
| FIS | Jeffrey A. Goldstein 10b5-1 box checked | Director | 1,585 | $36.40 | Oct 15, 2026 |
| HQY | Sunil Rajasekar 10b5-1 box not checked | EVP Chief Prod & Strat Officer | 108 | $90.33 | Oct 15, 2026 |
| PRIM | Terry D. McCallister 10b5-1 box not checked | Director | 22 | $79.98 | Oct 15, 2026 |
| SAH | Paul P. Rusnak 10b5-1 box not checked | 10% Owner | 12,555 | $59.90 | Oct 14, 2026 |
| GME | Ryan Cohen 10b5-1 box not checked | Director & Officer | 844,130 2 buys | $26.98avg | Oct 13, 2026 |
| IIPR | Alan D. Gold 10b5-1 box not checked | Director & Officer | 40,000 | $25.00 | Oct 8, 2026 |
| TSM | Tzu-Sou Chuang 10b5-1 box not checked | VP | 46 | $79.39 | Oct 7, 2026 |
| TSM | Min Cao 10b5-1 box not checked | VP | 51 | $79.39 | Oct 7, 2026 |
| TSM | Yung-Pei Chin 10b5-1 box not checked | EVP and Co-COO | 67 | $79.39 | Oct 7, 2026 |
| TSM | Tzonz-Sheng Chang 10b5-1 box not checked | SVP | 51 | $79.39 | Oct 7, 2026 |
| TSM | Shu-Hua Fang 10b5-1 box not checked | SVP and GC | 53 | $79.39 | Oct 7, 2026 |
| TSM | Juiping Chuang 10b5-1 box not checked | VP | 46 | $79.39 | Oct 7, 2026 |
| TSM | Pei-Hung Chen 10b5-1 box not checked | VP | 43 | $79.39 | Oct 7, 2026 |
| TSM | Chih-Ho Chen 10b5-1 box not checked | Controller | 31 | $79.39 | Oct 7, 2026 |
| TSM | Yung-Chin Hou 10b5-1 box not checked | SVP and Deputy Co-COO | 60 | $79.39 | Oct 7, 2026 |
| TSM | Kuo-Chin Hsu 10b5-1 box not checked | VP | 52 | $79.39 | Oct 7, 2026 |
| TSM | Jun He 10b5-1 box not checked | VP | 43 | $79.39 | Oct 7, 2026 |
| TSM | Yuan-Ko Hwang 10b5-1 box not checked | VP | 39 | $79.39 | Oct 7, 2026 |
| TSM | Jen-Chau Huang 10b5-1 box not checked | SVP and CFO | 28 | $79.39 | Oct 7, 2026 |
| TSM | Syun-Ming Jang 10b5-1 box not checked | VP | 46 | $79.39 | Oct 7, 2026 |
| TSM | Chris Horng-Dar Lin 10b5-1 box not checked | VP and CIO | 44 | $79.39 | Oct 7, 2026 |
| TSM | Chun-Hsien Lee 10b5-1 box not checked | SVP | 51 | $79.39 | Oct 7, 2026 |
| TSM | Yao-Ching Ku 10b5-1 box not checked | VP | 46 | $79.39 | Oct 7, 2026 |
| TSM | Chin-Sheng Lu 10b5-1 box not checked | VP | 36 | $79.39 | Oct 7, 2026 |
| TSM | Lee-Chung Lu 10b5-1 box not checked | VP | 49 | $79.39 | Oct 7, 2026 |
| TSM | Shyue-Shyh Lin 10b5-1 box not checked | VP | 44 | $79.39 | Oct 7, 2026 |
| TSM | Ying-Lang Wang 10b5-1 box not checked | SVP | 52 | $79.39 | Oct 7, 2026 |
| TSM | Kevin Xiaoqiang Zhang 10b5-1 box not checked | SVP and Deputy Co-COO | 59 | $79.39 | Oct 7, 2026 |
| TSM | Yuh-Jier Mii 10b5-1 box not checked | EVP and Co-COO | 68 | $79.39 | Oct 7, 2026 |
| TSM | Bor-Zen Tien 10b5-1 box not checked | VP | 47 2 buys | $79.39 | Oct 7, 2026 |
| TSM | Shien-Yang Wu 10b5-1 box not checked | SVP | 53 | $79.39 | Oct 7, 2026 |
| TSM | Che-Chia Wei 10b5-1 box not checked | Director & Officer | 144 | $79.39 | Oct 7, 2026 |
| TSM | Yi-Huang Wu 10b5-1 box not checked | VP | 39 | $79.39 | Oct 7, 2026 |
| TSM | Lipen Yuan 10b5-1 box not checked | VP | 40 | $79.39 | Oct 7, 2026 |
| TSM | Choh Fei Yeap 10b5-1 box not checked | SVP | 52 | $79.39 | Oct 7, 2026 |
| TSM | Chue-San Yoo 10b5-1 box not checked | VP | 50 | $79.39 | Oct 7, 2026 |
| MWA | Brian C. Healy 10b5-1 box checked | Director | 1,376 | $21.75 | Oct 7, 2026 |
| SAH | Paul P. Rusnak 10b5-1 box not checked | 10% Owner | 13,701 | $59.78 | Oct 7, 2026 |
| SAH | Paul P. Rusnak 10b5-1 box not checked | 10% Owner | 1,119 | $59.90 | Oct 6, 2026 |
| HRL | William A. Newlands 10b5-1 box not checked | Director | 10,000 | $20.10 | Oct 5, 2026 |
| NXRT | Matt McGraner 10b5-1 box not checked | Officer (see filing) | 5,500 | $18.42 | Oct 5, 2026 |
| SAH | Paul P. Rusnak 10b5-1 box not checked | 10% Owner | 27,756 | $59.76 | Oct 5, 2026 |
| GME | Ryan Cohen 10b5-1 box not checked | Director & Officer | 700,000 | $24.41 | Oct 2, 2026 |
| LEN | Berkshire Hathaway Inc 10b5-1 box not checked | 10% Owner | 1,708,095 9 buys | $79.44avg | Oct 2, 2026 |
| MKC | Gavin Hattersley 10b5-1 box not checked | Director | 1,000 | $44.61 | Oct 2, 2026 |
| GME | Nat Turner 10b5-1 box not checked | Director | 10,462 | $24.33 | Oct 1, 2026 |
Open-market purchases only (Form 4 code P) — grants, option exercises and tax withholding are not shown. Price is the price reported on the filing; where one filer reported several lots on the same day, the share-weighted average is shown. “10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
46 of the 50 recent open-market buys above were reported with the 10b5-1 box unchecked.
Companies we track
901 companies with open-market insider activity in the last 90 days, most active first. Every page lists that company’s recent Form 4 filings with a link to each original on SEC EDGAR.
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Track insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.