Insider buying report — Thursday, October 8, 2026: 51 open-market buys worth $45.6M
On Thursday, October 8, 2026 the SEC published 51 open-market insider purchases worth $45.6M across 19 companies, against 22 insider sales of $1M or more worth $337.6M. By dollar value the selling outweighed the buying, which is the usual state of affairs — executives at large companies sell on schedule, and buy only on purpose.
The largest purchase
Huang Jack Jiajia (chief executive officer) at 51Talk Online Education Group (COE) filed the day's largest purchase: 2,812,140 shares at $11.50, $32.3M in total, transacted on Sep 17, 2026 and filed Oct 8, 2026. What makes it notable: it is the largest purchase this insider has ever filed; the stock was at least 25% below its recent high when they bought; the buyer is the chief executive.
Behind it: Troim Tor Olav at BORR ($5.4M), Life Insurance Co Nippon at CRBG ($4.1M), L1 Capital Pty Ltd at AVR ($2.0M).
Top ten insider buys
| Filed | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-10-08 | Huang Jack JiajiaCEOdiplargest ever Chief Executive Officer | COE 51Talk Online Education Group | Bought | 2,812,140 | $11.50 | $32.3M |
| 2026-10-08 | Troim Tor Olavclusterdip Director | BORR Borr Drilling Ltd | Bought | 1,250,000 | $4.31 | $5.4M |
| 2026-10-08 | Life Insurance Co Nippon 10% owner | CRBG Corebridge Financial, Inc. | Bought | 116,345 | $35.23 | $4.1M |
| 2026-10-08 | L1 Capital Pty Ltddip 10% owner | AVR Anteris Technologies Global Corp. | Bought | 272,695 | $7.18 | $2.0M |
| 2026-10-08 | R Jeffrey Baillyclusterfirst buydip Director | FUL FULLER H B CO | Bought | 10,000 | $50.00 | $500k |
| 2026-10-08 | Singer EricCEOfirst buy President and CEO | IMMR IMMERSION CORP | Bought | 41,000 | $7.14 | $293k |
| 2026-10-08 | David C Flattumclusterfirst buy Director | PDI PIMCO Dynamic Income Fund | Bought | 17,448 | $14.30 | $250k |
| 2026-10-08 | David C Flattum Director | PHK PIMCO HIGH INCOME FUND | Bought | 60,204 | $4.14 | $249k |
| 2026-10-08 | Edward A Muledip Director · 10% owner | MSC STUDIO CITY INTERNATIONAL HOLDINGS Ltd | Bought | 128,000 | $0.99 | $127k |
| 2026-10-08 | Saba Capital Management, L.P. 10% owner | GF NEW GERMANY FUND INC | Bought | 5,497 | $10.47 | $58k |
Showing 10 of 51 open-market purchases filed on 2026-10-08. The full list, sortable and filterable by role and size, is in the members Filings Browser; the same rows are available as JSON through the API.
Signals in the day's buying
Of the purchases filed: 9 purchases by a chief executive (CET, COE, GOAI, IMMR, NRXS, TSM); 2 by a CFO (NRXS, TSM); 38 that belong to an active cluster (BORR, CINT, FUL, NRXS, PDI, TSM); 7 first-ever purchases by the insider; 44 bought at least 25% below the recent high. These are the flags the members area scores on — a CFO buying with their own money has historically been the strongest single-insider signal, and a cluster of three or more buyers the strongest of all. The cluster guide explains the scoring.
COE — two years of insider activity on the price
BORR — two years of insider activity on the price
CRBG — two years of insider activity on the price
Largest insider sales ($1M and up)
| Filed | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-10-08 | Ullal Jayshree CEO and Chairperson | ANET Arista Networks, Inc. | Sold | 454,910 | $212.08 | $96.5M |
| 2026-10-08 | Canyon Capital Advisors Llc Insider | CBL CBL & ASSOCIATES PROPERTIES INC | Sold | 1,307,500 | $52.19 | $68.2M |
| 2026-10-08 | Durban Egon Director | DELL Dell Technologies Inc. | Sold | 52,941 | $575.11 | $30.4M |
| 2026-10-08 | Rajiv Ramaswami Chief Executive Officer | NTNX Nutanix, Inc. | Sold | 400,000 | $73.65 | $29.5M |
| 2026-10-08 | Durban Egon Director | DELL Dell Technologies Inc. | Sold | 45,138 | $575.30 | $26.0M |
The largest sale was Ullal Jayshree at Arista Networks, Inc. (ANET), $96.5M. Sales are shown from $1M upward only; below that they are overwhelmingly scheduled 10b5-1 plans and tax-driven, and listing them would bury the signal.
Context: the market-wide picture
For the week starting Sep 28, 2026, 38% of open-market insider filings across the whole market were buys (264 buys against 422 sales). The long-run average sits near a third, because insiders buy for one reason and sell for many. The full weekly series since 2019 is on the insider sentiment index.
Questions this post answers
Which insiders bought stock on Oct 8, 2026?
51 open-market purchases were filed with the SEC on Oct 8, 2026, worth $45.6M across 19 companies. The largest was Huang Jack Jiajia at 51Talk Online Education Group (COE), $32.3M. The ten largest are listed above.
Were insiders net buyers or net sellers on Oct 8, 2026?
By dollar value, sellers: $45.6M bought against $337.6M in sales of $1M or more. Selling normally dominates because executives sell on pre-set schedules; what matters is the buying, which is voluntary.
What counts as an insider buy here?
Only Form 4 transactions with code P — an open-market purchase paid for with the insider's own money. Grants (A), option exercises (M) and shares withheld for tax (F) are excluded, because they follow vesting schedules set years earlier and say nothing about what the insider thinks of the price.
How current is this?
The SEC publishes Form 4 filings through about 10 pm Eastern each business day. This report covers everything published on Oct 8, 2026 and was generated early the next morning from the same data the members area uses.