Harter Ava 4

4 · LAM RESEARCH CORP · Filed Mar 2, 2026

AI-generated summary of this filing

Updated Mar 2, 2026

Lam Research (LRCX) CLO Ava Harter Receives RSU Award; Shares Withheld

What Happened

Ava Harter, Chief Legal Officer of Lam Research (LRCX), received equity awards on 2026-02-27 consisting of 7,106 restricted stock units (RSUs) and 8,685 performance-based RSUs (total 15,791 RSU-equivalents). These awards show an acquisition price of $0.00 (standard for RSUs).
To satisfy tax withholding obligations, 1,988 shares were withheld on 2026-02-27 and 3,199 shares were withheld on 2026-03-27 (total withheld = 5,187 shares) at $233.89 per share, resulting in cash equivalents of $464,973 and $748,214 respectively (combined ~$1,213,187). These disposals are coded F (tax withholding).

Key Details

Transaction dates and prices:
- Awards (A): 02/27/2026 — 7,106 RSUs and 8,685 performance RSUs @ $0.00.
- Tax withholding disposals (F): 02/27/2026 — 1,988 shares @ $233.89 ($464,973); 03/27/2026 — 3,199 shares @ $233.89 ($748,214).
Total RSU-equivalents granted: 15,791. Total shares withheld for taxes: 5,187 (~$1.21M).
Vesting/performance notes:
- Time-based RSUs vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029 (F1).
- Performance (market-based) RSUs vest 0%–150% on 02/27/2029 based on Lam’s TSR vs. the PHLX Semiconductor TR Index over 02/02/2026–02/01/2029 (F4).
- Reported amounts include shares subject to unvested RSUs (F2).
The disposals were automatic withholdings to satisfy tax liabilities (F3) — routine and not an open-market sale.
Filing date: 2026-03-02 (as reported). The filing does not indicate a late-report flag.

Context

These transactions are award grants and automatic tax withholdings, not open-market purchases or voluntary sales. Awards at $0.00 per share reflect standard RSU grants rather than cash purchases.
Performance RSUs carry vesting tied to multi-year relative TSR performance; payoff could range from 0% to 150% of the target award depending on results.
The filing excerpt does not show total shares beneficially owned after the transactions; reported totals include unvested awards.

Form 4

Period: 2026-02-27

Chief Legal Officer

Transactions

Award
Common Stock
[F1][F2]
2026-02-27+7,106→ 63,892.455 total
Tax Payment
Common Stock
[F3][F2]
2026-02-27$233.89/sh−1,988$464,973→ 61,904.455 total
Tax Payment
Common Stock
[F3][F2]
2026-03-27$233.89/sh−3,199$748,214→ 58,705.455 total
Award
Market-based Performance Restricted Stock Unit
[F4]
2026-02-27+8,685→ 8,685 total
Exercise: $0.00→ Common Stock (8,685 underlying)

Footnotes (4)

[F1]The restricted stock units will vest in three equal installments on 02/27/2027, 02/27/2028, and 02/27/2029.
[F2]The amount reported includes shares subject to unvested restricted stock units.
[F3]Represents shares that were automatically withheld upon vesting of restricted stock units to satisfy tax withholding obligations.
[F4]The Market-based performance restricted stock units will vest between 0% and 150% on 2/27/2029. The performance of this award is based on the percentile ranking of Lam Research's Total Shareholder Return relative to the Total Shareholder Return of the companies in the PHLX Semiconductor Total Return Index during the performance period of 02/2/2026 through 02/01/2029.

Signature

Marta Woods by Power of Attorney|2026-03-02

1 file