K L A-Tencor Corp (KLAC): Congress and insider trades
Who in Congress and inside the company traded KLAC, when each filing appeared, and what buying after each one would have earned against the S&P 500.
Key Facts
- K L A-Tencor Corp (KLAC) is a listed stock on NASDAQ.
- 11 members of Congress filed 33 buys and 41 sells of KLAC, the latest published 2026-08-10 (10 August 2026).
- Insiders filed 0 open market buys worth $0 and 5 sells worth $15M, the latest filed 2026-08-05 (5 August 2026).
- Across 20 scored buys, Congress averaged +13.5% against the S&P 500 (SPY) over the 90 days after disclosure, with 80% of them ahead of the index. That result is clearly above the market.
- Data as of 2026-09-29 (29 September 2026).
Congress buys 33 11 members
Congress sells 41
Insider buys 0 $0
Insider sells 5 $15M
Congress buys vs S&P, 90d +13.5% 20 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys
Congress trades in KLAC
as of 2026-08-10| Filed | Member | Type | Size | Days to file | 90 day vs S&P |
|---|---|---|---|---|---|
| 10 Aug 2026 | Michael Rulli (R-OH) | buy | 1K–15K | 37 | n/a |
| 5 Aug 2026 | Tommy Tuberville (R-AL) | sell | 1K–15K | 824 | n/a |
| 21 Jul 2026 | Alan Armstrong (R-OK) | buy | 1K–15K | 116 | n/a |
| 13 May 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 17 | n/a |
| 1 May 2026 | Lizzie Fletcher (D-TX) | sell | 1K–15K | 23 | n/a |
| 9 Apr 2026 | Ro Khanna (D-CA) | buy | 15K–50K | 20 | +21.4% |
| 9 Apr 2026 | Ro Khanna (D-CA) | sell | 1K–15K | 15 | n/a |
| 12 Mar 2026 | Ro Khanna (D-CA) | buy | 1K–15K | 32 | +58.5% |
| 15 May 2025 | Ro Khanna (D-CA) | buy | 1K–15K | 33 | +12.2% |
| 15 May 2025 | Ro Khanna (D-CA) | buy | 1K–15K | 27 | +12.2% |
| 15 May 2025 | Ro Khanna (D-CA) | buy | 1K–15K | 19 | +12.2% |
| 10 Nov 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 29 | n/a |
| 12 Oct 2023 | Markwayne Mullin (R-OK) | buy | 50K–100K | 29 | +5.0% |
| 11 Oct 2023 | Lois Frankel (D-FL) | sell | 1K–15K | 32 | n/a |
| 14 Jun 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 20 | +1.4% |
| 7 Jun 2023 | Zoe Lofgren (D-CA) | sell | 1K–15K | 11 | n/a |
| 10 Mar 2023 | Ro Khanna (D-CA) | sell | 1K–15K | 26 | n/a |
| 9 Feb 2023 | Ro Khanna (D-CA) | buy | 1K–15K | 29 | -3.7% |
| 31 Jan 2023 | Diana Harshbarger (R-TN) | sell | 1K–15K | 27 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 33 | n/a |
| 7 Dec 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 34 | n/a |
| 12 Oct 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 8 | +42.4% |
| 12 Oct 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | +42.4% |
| 12 Oct 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 31 | +42.4% |
| 7 Oct 2022 | Zoe Lofgren (D-CA) | buy | 1K–15K | 185 | +25.0% |
| 7 Oct 2022 | Zoe Lofgren (D-CA) | sell | 1K–15K | 90 | n/a |
| 21 Sep 2022 | Lois Frankel (D-FL) | buy | 1K–15K | 6 | +23.5% |
| 21 Sep 2022 | Lois Frankel (D-FL) | buy | 1K–15K | 13 | +23.5% |
| 9 Sep 2022 | Ro Khanna (D-CA) | sell | 15K–50K | 16 | n/a |
| 5 Sep 2022 | Diana Harshbarger (R-TN) | sell | 1K–15K | 20 | n/a |
| 12 Aug 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 21 | n/a |
| 15 Jun 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 18 | +4.0% |
| 15 Jun 2022 | Ro Khanna (D-CA) | sell | 1K–15K | 31 | n/a |
| 12 May 2022 | Ro Khanna (D-CA) | buy | 1K–15K | 25 | +5.8% |
| 30 Mar 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 29 | +3.3% |
| 30 Mar 2022 | Diana Harshbarger (R-TN) | buy | 1K–15K | 29 | +3.3% |
| 17 Nov 2021 | John Curtis (R-UT) | buy | 1K–15K | 8 | -4.0% |
| 26 Oct 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 10 | +12.9% |
| 26 Oct 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 19 | +12.9% |
| 26 Oct 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 19 | +12.9% |
| 26 Oct 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 10 | +12.9% |
| 26 Oct 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 19 | +12.9% |
| 16 Oct 2021 | Tommy Tuberville (R-AL) | buy | 1K–15K | 15 | +32.2% |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 29 | +2.0% |
| 16 Sep 2021 | Ro Khanna (D-CA) | buy | 1K–15K | 30 | +2.0% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 169 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 169 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 207 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 207 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 197 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 169 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 197 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 197 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 207 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 200 | n/a |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 144 | +15.1% |
| 28 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 200 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 158 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 189 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 158 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 189 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 186 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 186 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 196 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 158 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | buy | 1K–15K | 133 | +26.4% |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 196 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 186 | n/a |
| 17 Aug 2021 | Diana Harshbarger (R-TN) | sell | 1K–15K | 196 | n/a |
| 1 May 2021 | Ron Wyden (D-OR) | sell | 50K–100K | 14 | n/a |
| 10 Apr 2021 | Ron Wyden (D-OR) | sell | 100K–250K | 3 | n/a |
| 10 Apr 2021 | Ron Wyden (D-OR) | sell | 1K–15K | 3 | n/a |
| 24 Mar 2021 | Ron Wyden (D-OR) | buy | 1K–15K | 25 | -4.7% |
| 19 Feb 2021 | Ron Wyden (D-OR) | buy | 1K–15K | 22 | -9.2% |
Nothing matches that search.
Insider trades in KLAC
as of 2026-08-05| Filed | Insider | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 5 Aug 2026 | Kirloskar Virendra A | sell | 4,504 | $195.50 | $881K | n/a |
| 5 Aug 2026 | Wilkinson Mary Beth | sell | 13,802 | $195.50 | $2.7M | n/a |
| 4 Aug 2026 | Wilkinson Mary Beth | sell | 4,295 | $191.59 | $823K | n/a |
| 4 Aug 2026 | Kirloskar Virendra A | sell | 1,565 | $191.59 | $300K | n/a |
| 11 Jun 2026 | WALLACE RICHARD P | sell | 4,512 | $2213.37 | $10.0M | n/a |
Nothing matches that search.
Related pages
Frequently asked questions
Who has bought KLAC?
33 Congress buys by 11 members and 0 insider buys are on file. The tables on this page list every one.
Did buying KLAC after a disclosure beat the market?
Across 20 scored buys, Congress averaged +13.5% against the S&P 500 (SPY) over the 90 days after disclosure, with 80% of them ahead of the index. That result is clearly above the market. A single stock is a small sample.
Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.