KLAC — KLA CORPToday's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
53
all time
Members · 12m
3
2 buys · 1 sells · by trade date
Latest filing
08-07
2026-08-07
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
17
13F holders
1,665
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29

On Signals

ACTIVE HITS NAMING KLAC · NEWEST FILED FIRST · EVERY HIT CARRIES ITS RECEIPTSignals ↗
Active signal hits naming KLAC, newest filed first
KindWhoTraded → FiledSizeSrc
first disclosure of this ticker by this member within the corpus — era-scoped: coverage begins 2014-01-03, so an earlier first disclosure cannot be seen and is not claimed againstRulliTraded → Filed +37d$1.0K–$15.0K
a disclosed trade in an issuer whose sector falls within a committee the member sat on as of the trade date (versioned mapping; membership dated) — context only: no legal, ethical, or causal conflict is established or impliedRulliTraded → Filed +37d$1.0K–$15.0K

1–2 of 2 lines · 2 hits · each kind word opens its exact rule · every hit is in signals.v1.json.

COMMITTEE: Context, not an allegation.

Congress 53Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 9 rows ▲ buy, ▼ sell; height = lower bound (log scale); ringed = on Signals. Trade date, not filing date — the filing lag is in the table below.

9 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M; 1 ringed mark is a line of the Signals row above, pinned in the table below.

Members active in KLAC

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing KLAC in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Alan Armstrong R–OK1$1.0K to $15.0K2
Lizzie Fletcher D–TX-71−$15.0K to −$1.0K1
Michael A. Rulli R–OH-61$1.0K to $15.0K2

3 members

Congressional disclosures

Signals rows first, then newestAll 53 rows ↗
Latest congressional filings mentioning KLAC, the rows on Signals first
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-08-07Michael A. Rulli R–OH-6 On SignalsBUYTraded 07-01 +37d$1K–$15K
2026-08-05Tommy Tuberville R–ALSELL JT (jointly owned)Traded 2024-05-03 LATE·824d$1K–$15Kamendment pending
2026-07-21Alan Armstrong R–OKBUYTraded 03-27 LATE·116d$1K–$15K
2026-05-01Lizzie Fletcher D–TX-7SELL partial (partial sale)Traded 04-08 +23d$1K–$15K
2025-10-10Val T. Hoyle D–OR-4SELL SP (spouse-owned)Traded 09-23 +17d$1K–$15K
2025-09-12Val T. Hoyle D–OR-4BUY SP (spouse-owned)Traded 07-28 LATE·46d$1K–$15K
2025-09-12Val T. Hoyle D–OR-4SELL SP (spouse-owned)Traded 04-29 LATE·136d$1K–$15K
2025-09-12Val T. Hoyle D–OR-4BUY SP (spouse-owned)Traded 2024-10-29 LATE·318d$1K–$15K
2025-02-25William R. Keating D–MA-9BUYTraded 01-24 +32d$1K–$15K
2025-02-11Gilbert Ray Cisneros, Jr. D–CA-31SELL partial (partial sale)Traded 01-13 +29d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

All holders ↗
Top institutional holders of KLAC for quarter 2026-03-31, 1–25 of 1,665 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date (the full holders view shows them), but no document links — the EDGAR link opens the filer's 13F list·§
1BlackRock, Inc.$18.5B1
derived ·§ EDGAR ↗
2VANGUARD CAPITAL MANAGEMENT LLC$12.5B1
derived ·§ EDGAR ↗
3STATE STREET CORP$9.1B1
derived ·§ EDGAR ↗
4FMR LLC$6.5B1
derived ·§ EDGAR ↗
5Capital World Investors$6.0B1
derived ·§ EDGAR ↗
6VANGUARD PORTFOLIO MANAGEMENT LLC$5.9B1
derived ·§ EDGAR ↗
7GEODE CAPITAL MANAGEMENT, LLC$5.4B1
derived ·§ EDGAR ↗
8Capital International Investors$4.0B1
derived ·§ EDGAR ↗
9PRIMECAP MANAGEMENT CO/CA/$3.6B1
derived ·§ EDGAR ↗
10MORGAN STANLEY$2.6B1
derived ·§ EDGAR ↗
11Invesco Ltd.$2.4B1
derived ·§ EDGAR ↗
12MASSACHUSETTS FINANCIAL SERVICES CO /MA/$2.4B1
derived ·§ EDGAR ↗
13NORTHERN TRUST CORP$2.3B1
derived ·§ EDGAR ↗
14WELLINGTON MANAGEMENT GROUP LLP$2.1B1
derived ·§ EDGAR ↗
15STATE FARM MUTUAL AUTOMOBILE INSURANCE CO$2.1B1
derived ·§ EDGAR ↗
16BANK OF AMERICA CORP /DE/$1.9B1
derived ·§ EDGAR ↗
17Janus Henderson Group Ltd.$1.8B1
derived ·§ EDGAR ↗
18UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$1.6B1
derived ·§ EDGAR ↗
19Amundi$1.6B1
derived ·§ EDGAR ↗
20Legal & General Group Plc$1.5B1
derived ·§ EDGAR ↗
21CHARLES SCHWAB INVESTMENT MANAGEMENT INC$1.5B1
derived ·§ EDGAR ↗
22Capital Research Global Investors$1.4B1
derived ·§ EDGAR ↗
23Bank of New York Mellon Corp$1.3B1
derived ·§ EDGAR ↗
24AMERIPRISE FINANCIAL INC$1.3B1
derived ·§ EDGAR ↗
25UHLMANN PRICE SECURITIES, LLC$1.2B1
derived ·§ EDGAR ↗
Show the top 500 of 1,665 holders
Truncated by Public Filings. Top 500 of 1,665 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · KLAC

Congress · last 90 days

Buyers
1 Michael A. Rulli R–OH-6 $1K–$15K
Sellers
1 Tommy Tuberville R–AL $1K–$15K

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Trimming
1 Caxton Associates $1.3M held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · KLA CORP

Merged timeline of congressional filings and notable-manager moves on KLAC
DateWhoChangeSize
2026-08-07Michael A. Rulli CongressBUY$1K–$15K
2026-08-05Tommy Tuberville CongressSELL$1K–$15K
2026-05-15Bridgewater Associates 13FADD+30,307 sh
2026-05-15Gotham Asset Management 13FADD+3,280 sh
2026-05-15Third Point 13FNEW+11,000 sh
2026-05-14Caxton Associates 13FTRIM−822 sh

6 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)2 buy / 1 sell
Congress net ($ bound)−$13.0K to $29.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.