---
title: AMD CEO Lisa Su Sells $28.2M in Shares Through Systematic 10b5-1 Plan
type: news
slug: lisa-su-amd-systematic-sell-128k-shares-december
canonical_url: https://13finsight.com/news/lisa-su-amd-systematic-sell-128k-shares-december
published_at: 2026-03-14T14:13:32.462Z
updated_at: 2026-03-23T07:02:31.319Z
author: Alex Rivera
author_title: Breaking News Editor
author_url: https://13finsight.com/authors/alex-rivera
word_count: 692
locale: en
source: 13F Insight
---

# AMD CEO Lisa Su Sells $28.2M in Shares Through Systematic 10b5-1 Plan

> Lisa Su, AMD's Chair, President & CEO, executed a coordinated multi-tranche sale of 128,000 shares on December 10-11, 2025, netting $28.2M. The pattern suggests execution of a pre-arranged 10b5-1 trading plan.

Lisa Su, AMD’s Chair, President & CEO, executed a coordinated sale of 128,000 shares across 12 separate tranches on December 10–11, 2025, generating approximately $28.2 million in proceeds. The multi-tranche execution pattern and consistent pricing intervals strongly suggest this was a pre-arranged 10b5-1 trading plan rather than discretionary selling. The Systematic Sell Pattern Su’s December sales occurred in 12 separate transactions, each executed at slightly different prices ranging from $210.79 to $221.47 per share. This staggered approach is the hallmark of a 10b5-1 plan—a pre-arranged trading schedule that insiders establish during open trading windows to avoid accusations of trading on material non-public information. Date Shares Sold Price Per Share Proceeds Dec 11, 2025 15,991 $220.97 $3,535,000 Dec 11, 2025 8,201 $220.12 $1,804,000 Dec 11, 2025 3,901 $218.82 $853,000 Dec 11, 2025 1,701 $217.66 $370,000 Dec 11, 2025 6,877 $216.63 $1,490,000 Dec 11, 2025 6,700 $215.80 $1,446,000 Dec 11, 2025 14,892 $214.72 $3,199,000 Dec 11, 2025 12,019 $213.82 $2,569,000 Dec 11, 2025 29,101 $212.83 $6,191,000 Dec 11, 2025 23,205 $212.06 $4,922,000 Dec 11, 2025 2,100 $210.79 $443,000 Dec 10, 2025 312 $221.47 $69,000 After the sales, Su retained 3.27 million shares of AMD, maintaining a substantial direct stake in the company she leads. The Form 4 filing shows no officer title listed, though SEC records confirm her role as Chair, President & CEO. 10b5-1 Plans: The Insider Selling Standard A Rule 10b5-1 trading plan allows corporate insiders to establish a predetermined schedule for buying or selling company stock during open trading windows. Once adopted, the plan operates automatically, removing the insider from the decision-making process and protecting against accusations of trading on material non-public information. The characteristics of Su’s December sale align perfectly with a 10b5-1 execution: Multiple tranches: 12 separate sales rather than a single block order Consistent pricing intervals: Prices descend in a narrow band ($210–$221), typical of algorithmic execution Staggered timing: Concentrated over two days, suggesting a pre-planned schedule Substantial volume: 128,000 shares is material enough to warrant a structured plan Su’s Selling History: A Career of Liquidation This December sale is consistent with Su’s long-term pattern. Since 2012, she has sold $593.8 million in AMD stock while buying only $98,400—a 6,000:1 sell-to-buy ratio. Her career transactions show regular, systematic liquidation rather than opportunistic trading. In August 2025, Su executed a similar multi-tranche sale of 225,000 shares, netting $36.8 million. That sale also followed the 10b5-1 pattern, with multiple tranches executed across a single day at prices ranging from $163 to $177 per share. What This Signals Systematic 10b5-1 selling by a CEO does not necessarily signal loss of confidence in the company. Instead, it reflects: Diversification: CEOs often establish 10b5-1 plans to gradually reduce concentration risk in company stock Liquidity needs: Planned capital for personal investments, real estate, or charitable giving Tax planning: Spreading sales across multiple quarters to manage capital gains tax liability Regulatory compliance: Demonstrating that sales follow a pre-arranged schedule, not material information The fact that Su also received 99,211 shares via grant on December 10 (likely a year-end equity award) suggests AMD’s compensation committee continues to grant her substantial equity, even as she executes her 10b5-1 plan. Key Facts Insider Lisa Su Company AMD (Advanced Micro Devices) Transaction Date December 10–11, 2025 Shares Sold 128,000 Sale Proceeds $28.2 million Shares Retained 3.27 million Career Sales (2012–2025) $593.8 million Career Buys (2012–2025) $98,400 Filing Date December 12, 2025 What to Watch Next 10b5-1 execution: Monitor Su’s Form 4 filings in Q1 2026 to see if the plan continues. Systematic plans typically run for 12 months unless modified. AMD stock performance: If AMD stock rallies significantly above $230, the next tranche of Su’s 10b5-1 plan may execute at higher prices, increasing proceeds. Equity grants: Watch for the next annual equity grant to Su in Q1 2026. If grants continue at current levels, her net ownership will stabilize despite the 10b5-1 sales. Insider buying: Any open-market purchases by Su or other AMD executives would signal confidence and contrast with the systematic selling pattern. Disclosure amendments: If Su amends her 10b5-1 plan (Form 4 code “A”), it could indicate a change in strategy or acceleration of the liquidation schedule.

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Source: 13F Insight — https://13finsight.com/news/lisa-su-amd-systematic-sell-128k-shares-december
Author: Alex Rivera — https://13finsight.com/authors/alex-rivera
Last updated: 2026-03-23T07:02:31.319Z