LYTIR

Insider · SEC Form 4 · Chief Technology Officer

Lie Sean

In the 12 months to Nov 8, 2026, on the open market: sold $189.5M of CBRS. Filed a median of 1 business day after the trade.

Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $189.5M in total.Jun: Insider sales $1.7MAug: Insider sales $155.8MSep: Insider sales $25.1MOct: Insider sales $6.9MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $189.5M
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
  1. CBRSSold: Cerebras Systems Inc. Oct 27, 2026 60,000 shares filed Oct 28, 2026 3 transactions 10b5-1 plan filing $6.9M
  2. CBRSSold: Cerebras Systems Inc. Sep 25, 2026 120,000 shares filed Sep 28, 2026 9 transactions 10b5-1 plan filing $25.1M
  3. CBRSSold: Cerebras Systems Inc. Aug 21, 2026 16,293 shares filed Aug 21, 2026 368,926 shares held directly after, as filed 10b5-1 plan filing $3.4M
  4. CBRSSold: Cerebras Systems Inc. Aug 20, 2026 710,247 shares filed Aug 21, 2026 10 transactions 10b5-1 plan filing $147.6M
  5. CBRSSold: Cerebras Systems Inc. Aug 18, 2026 21,257 shares filed Aug 20, 2026 26 transactions filing $4.7M
  6. CBRSSold: Cerebras Systems Inc. Jun 25, 2026 10,033 shares filed Jun 29, 2026 16 transactions filing $1.7M

Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.

Other Form 4 entries

Not counted above: entries this filer reported on Form 4 in the same 12 months that are not open-market purchases or sales. Each entry is one line of a filing.

  • CBRS: conversion (code C), 6 entries, Jun 25 to Oct 27, 2026
  • CBRS: gift (code G), 3 entries, Aug 20 to Oct 27, 2026
Code C
A conversion of a derivative security, such as preferred stock or units, into shares.
Code G
A gift of shares, made or received.

Source: the same SEC Form 4 filings. The codes are the SEC's own transaction codes; the meanings above are a plain-words reading of the SEC's Form 4 instructions.