MarketPeel
Insider Trading Intelligence
Pricing
…
MW

Mary Beth Wilkinson

KLAC
EVP, CLO AND SECRETARY · KLA CORP · CIK 0001691769
FILING MIX · LIFETIME27%/73%
BUYS
14
SELLS
38
TOTAL VALUE
$26.04M
COMPANIES
2
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
110,209
AVG SELL PX
$260.03
TRADE KIND
SHOWING 52 / 52
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
13 backtested trades · 8 horizons · 9 pending
Forward-return performance of every backtestable P/S trade by Mary Beth Wilkinson, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d13+46.15%+1.07%+1.04%+0.03%+1.43%—
14d13+53.85%+1.29%+1.37%-0.07%-0.58%—
30d13+53.85%-1.54%+1.47%-3.01%-2.46%—
60d13+30.77%+8.26%+3.85%+4.41%+0.84%—
90d13+30.77%+15.11%+5.80%+9.32%+9.87%—
180d13+7.69%+27.05%+11.20%+15.85%+14.27%—
1y13(3 pending)+10.00%+44.85%+19.43%+25.41%+11.07%—
2y13(6 pending)+0.00%+84.39%+37.33%+47.06%+51.80%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
KLAC · 53,367.295 shares · as of Jul 1, 2026
016,94033,88050,81967,759202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 14 buys / 38 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
14,392$285.30$4.11M53,367.295Jul 1, 2026Jul 2, 2026 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
10,259.765$278.39$2.86M67,759.295Jun 30, 2026Jul 2, 2026 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
1,022$913.00$933.1K7,801.906Aug 8, 2025Aug 8, 2025 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
1,145.088——8,823.906Aug 7, 2025Aug 8, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
766.801$888.28$681.1K5,213.628Aug 7, 2025Aug 8, 2025 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
3,577.5——5,980.429Aug 7, 2025Aug 8, 2025 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
2,465.19——7,678.818Aug 7, 2025Aug 8, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
274.241$915.62$251.1K4,665.73Aug 5, 2025Aug 7, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
823.363$915.62$753.9K4,939.971Aug 5, 2025Aug 7, 2025 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
1,920$917.00$1.76M2,402.929Aug 5, 2025Aug 7, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
342.801$915.62$313.9K4,322.929Aug 5, 2025Aug 7, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
255.386$886.64$226.4K6,526.334Aug 4, 2025Aug 5, 2025 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
763$896.75$684.2K5,763.334Aug 4, 2025Aug 5, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
181.684$886.64$161.1K6,781.72Aug 3, 2025Aug 5, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
136.263$879.03$119.8K6,963.404Aug 1, 2025Aug 5, 2025 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
1,320$891.16$1.18M7,099.667Jun 30, 2025Jul 2, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
877.84$889.87$781.2K8,419.667Jun 30, 2025Jul 2, 2025 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
343.229$696.17$238.9K12,623.833Aug 5, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
274.241$696.17$190.9K12,967.062Aug 5, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
715.326$696.17$498.0K11,908.507Aug 5, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
2,369$649.84$1.54M9,539.507Aug 5, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
242$675.00$163.3K9,297.507Aug 5, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
255.387$696.17$177.8K13,241.303Aug 4, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
181.684$696.17$126.5K13,496.69Aug 3, 2024Aug 6, 2024 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
2,198.18——13,678.374Aug 1, 2024Aug 5, 2024 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
3,844.5——11,480.194Aug 1, 2024Aug 5, 2024 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
1,271.694——7,635.694Aug 1, 2024Aug 5, 2024 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
430$550.00$236.5K6,364Nov 15, 2023Nov 17, 2023 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
3,155$451.51$1.42M6,794Sep 22, 2023Sep 25, 2023 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
2,366$446.92$1.06M9,949Sep 21, 2023Sep 25, 2023 ↗View →
KLAC
KLA CORP
SALE10b5-1
10b5-1 plan
870$500.00$435.0K12,315Aug 7, 2023Aug 9, 2023 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
228$496.47$113.2K13,185Aug 5, 2023Aug 8, 2023 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
344$496.47$170.8K13,413Aug 5, 2023Aug 8, 2023 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
166$496.47$82.4K13,757Aug 4, 2023Aug 8, 2023 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
1,695——13,923Aug 3, 2023Aug 7, 2023 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
3,155$320.34$1.01M12,228Sep 22, 2022Sep 23, 2022 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
2,367$322.86$764.2K15,383Sep 21, 2022Sep 23, 2022 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
896$390.85$350.2K17,750Aug 8, 2022Aug 10, 2022 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
344$395.74$136.1K18,646Aug 5, 2022Aug 9, 2022 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
202$395.74$79.9K18,990Aug 5, 2022Aug 9, 2022 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
2,384——19,192Aug 4, 2022Aug 8, 2022 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
3,505$359.13$1.26M0Sep 22, 2021Sep 23, 2021 ↗View →
KLAC
KLA CORP
PURCHASE
EVP, CLO and Secretary
5,522——5,522Sep 21, 2021Sep 23, 2021 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
2,017$356.58$719.2K3,505Sep 21, 2021Sep 23, 2021 ↗View →
KLAC
KLA CORP
SALE
EVP, CLO and Secretary
5,522——16,808Sep 21, 2021Sep 23, 2021 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
2,562——19,127Aug 5, 2021Aug 9, 2021 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
3,203——22,330Aug 5, 2021Aug 9, 2021 ↗View →
KLAC
KLA CORP
PURCHASEGRANT
Stock grant
16,565——16,565Sep 21, 2020Sep 23, 2020 ↗View →
OI
O-I GLASS, INC. /DE/
SALE
SVP, GC & Corporate Sec.
33,122$11.25$372.5K56,842Aug 26, 2020Aug 27, 2020 ↗View →
OI
O-I GLASS, INC. /DE/
PURCHASEGRANT
Stock grant
10,406——99,215Mar 7, 2020Mar 10, 2020 ↗View →
OI
O-I GLASS, INC. /DE/
SALE
SVP, GC & Corporate Sec.
9,251$9.32$86.2K89,964Mar 7, 2020Mar 10, 2020 ↗View →
OI
O-I GLASS, INC. /DE/
PURCHASEGRANT
Stock grant
38,627——88,809Mar 7, 2020Mar 10, 2020 ↗View →
Other insiders · KLAC
Loading peer insiders…
About this filer
CIK 0001691769
ROLE
EVP, CLO and Secretary
PRIMARY
KLAC
COMPANIES
2
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001691769DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback