Douglas R. Bettinger is CFO & VP at LAM RESEARCH CORP (LRCX). They have made 22 open-market trades across 2 companies since 2009, most recently 2026-05-04.
CIK 0001469469
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 22 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| LRCX | 1,131,762 | $298.7M |
| AVGO | 56,260 | $18.5M |
| LSCC | 11,915 | $1.2M |
| Total | $318.4M |
Shares reported on the most recent Form 4, priced at the 2026-05-06 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| LRCX | SELL | 2026-03-04 | 2026-03-05 | $224.03 | $11.2M | +10.2% | +7.4% | +67.4% |
| LRCX | SELL | 2026-03-02 | 2026-03-03 | $230.22 | $9.3M | -4.3% | -1.5% | +43.1% |
| LRCX | SELL | 2025-11-14 | 2025-11-17 | $150.60 | $6.0M | +7.4% | +6.7% | +62.2% |
| LRCX | SELL | 2023-08-07 | 2023-08-08 | $705.86 | $2.7M | -6.3% | -2.9% | -8.3% |
| LRCX | SELL | 2022-08-30 | 2022-09-01 | $439.20 | $29.5M | -3.3% | -10.7% | +8.2% |
| LRCX | SELL | 2021-10-25 | 2021-10-27 | $555.21 | $5.9M | +8.1% | +13.9% | +4.3% |
| LRCX | SELL | 2021-02-16 | 2021-02-17 | $592.71 | $9.8M | +3.5% | -6.3% | +1.1% |
| LRCX | SELL | 2020-11-13 | 2020-11-16 | $425.19 | $7.0M | +4.8% | +13.3% | +35.9% |
| LRCX | SELL | 2020-10-22 | 2020-10-26 | $358.01 | $10.4M | +14.7% | +28.2% | +62.9% |
| LRCX | SELL | 2020-09-02 | 2020-09-04 | $355.60 | $6.8M | -1.6% | +10.0% | +55.7% |
| LRCX | SELL | 2019-10-29 | 2019-10-30 | $279.03 | $5.2M | -2.0% | -3.6% | +9.0% |
| LRCX | SELL | 2019-10-29 | 2019-10-30 | $278.98 | $10.3M | -2.0% | -3.6% | +9.0% |
| LRCX | SELL | 2017-03-02 | 2017-03-06 | $118.94 | $453K | +6.4% | +7.9% | +35.4% |
| LRCX | SELL | 2017-02-27 | 2017-02-28 | $118.27 | $4.1M | +1.3% | +8.2% | +31.8% |
| LRCX | SELL | 2017-02-21 | 2017-02-22 | $114.90 | $860K | -0.8% | +6.9% | +28.6% |
| LRCX | SELL | 2017-02-13 | 2017-02-14 | $117.02 | $598K | +2.9% | +8.7% | +30.5% |
| LRCX | SELL | 2016-11-23 | 2016-11-28 | $106.88 | $2.1M | -0.1% | +0.3% | +11.2% |
| LRCX | SELL · 10b5-1 | 2015-02-19 | 2015-02-23 | $82.23 | $826K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2015-02-18 | 2015-02-20 | $81.82 | $2.2M | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2015-02-12 | 2015-02-13 | $80.75 | $44K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2015-02-10 | 2015-02-12 | $79.90 | $299K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2015-02-10 | 2015-02-20 | $79.90 | $293K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2014-04-03 | 2014-04-04 | $58.90 | $434K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2014-03-25 | 2014-03-27 | $56.90 | $100K | -11.2% | -0.1% | -0.1% |
| LRCX | SELL · 10b5-1 | 2014-03-21 | 2014-03-25 | $56.90 | $221K | -11.2% | -0.1% | -0.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.