Who owns KLAC (KLAC)
Which tracked institutional funds hold KLAC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See KLAC company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
44 tracked funds added or opened KLAC while 91 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
KLAC’s largest tracked holder by dollar value, SC US (TTGP), LTD., sizes it at 7.9% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 7.8pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in KLAC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 192 tracked filers holding KLAC, 127 increased or opened the position and 86 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in KLAC between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 26
- Azora Capital LP$20M
- Pictet Asset Management Holding SA$19M
- Bienville Capital Management, LLC$18M
- O'Connor Alternative Investments LLC$15M
- Whetstone Capital Advisors, LLC$7M
- Bastion Asset Management Inc.$5M
Full exits 25
- OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC)$72M
- NORGES BANK$51M
- Honeycomb Asset Management LP$30M
- Russell Investments Group, Ltd.$25M
- ARMISTICE CAPITAL, LLC$16M
- Freestone Grove Partners LP$14M
Largest adds
- Pacer Advisors, Inc.$77M
- MARSHALL WACE, LLP$35M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$16M
- UBS Group AG$6M
- RENAISSANCE TECHNOLOGIES LLC$5M
- CITADEL ADVISORS LLC$5M
Largest trims
- SC US (TTGP), LTD.$871M
- Commonwealth Bank of Australia$275M
- WELLINGTON MANAGEMENT GROUP LLP$269M
- SOFTBANK GROUP CORP.$244M
- Silver Lake Group, L.L.C.$229M
- Dragoneer Investment Group, LLC$164M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| SC US (TTGP), LTD. | 55,029,211 | $720M | 25.1% | 2026-Q1 |
| Commonwealth Bank of Australia | 17,407,235 | $228M | 8.0% | 2026-Q1 |
| SOFTBANK GROUP CORP. | 15,400,224 | $202M | 7.0% | 2026-Q1 |
| Silver Lake Group, L.L.C. | 14,470,343 | $189M | 6.6% | 2026-Q1 |
| Pacer Advisors, Inc. added | 468,550 | $83M | 2.9% | 2026-Q1 |
| Dragoneer Investment Group, LLC trimmed | 5,803,764 | $76M | 2.7% | 2026-Q1 |
| SCGE MANAGEMENT, L.P. | 5,266,524 | $69M | 2.4% | 2026-Q1 |
| HarbourVest Partners LLC | 5,023,320 | $66M | 2.3% | 2026-Q1 |
| HMI Capital Management, L.P. trimmed | 4,123,719 | $54M | 1.9% | 2026-Q1 |
| MARSHALL WACE, LLP added | 3,940,613 | $52M | 1.8% | 2026-Q1 |
| Technology Crossover Management X, Ltd. | 3,844,736 | $50M | 1.8% | 2026-Q1 |
| UBS Group AG added | 3,485,306 | $46M | 1.6% | 2026-Q1 |
| WELLCOME TRUST LTD (THE) as trustee of the WELLCOME TRUST | 3,158,340 | $41M | 1.4% | 2026-Q1 |
| BlackRock, Inc. added | 3,004,979 | $39M | 1.4% | 2026-Q1 |
| Mubadala Investment Co PJSC | 2,991,658 | $39M | 1.4% | 2026-Q1 |
| MIC Capital Management UK LLP | 2,714,928 | $36M | 1.2% | 2026-Q1 |
| Walmart Inc. | 2,400,000 | $31M | 1.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 2,043,100 | $27M | 0.9% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 1,841,541 | $24M | 0.8% | 2026-Q1 |
| Azora Capital LP added | 1,544,803 | $20M | 0.7% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 1,540,422 | $20M | 0.7% | 2026-Q1 |
| Pictet Asset Management Holding SA new | 1,441,675 | $19M | 0.7% | 2026-Q1 |
| Bienville Capital Management, LLC new | 1,390,033 | $18M | 0.6% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD | 1,357,464 | $18M | 0.6% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 1,268,190 | $17M | 0.6% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 1,213,544 | $16M | 0.6% | 2026-Q1 |
| Amova Asset Management Americas, Inc. added | 1,198,554 | $16M | 0.5% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 1,198,554 | $16M | 0.5% | 2026-Q1 |
| VISTA EQUITY PARTNERS MANAGEMENT, LLC | 1,148,592 | $15M | 0.5% | 2026-Q1 |
| O'Connor Alternative Investments LLC new | 1,127,170 | $15M | 0.5% | 2026-Q1 |
| WestCap Management, LLC | 1,068,564 | $14M | 0.5% | 2026-Q1 |
| Nuveen, LLC trimmed | 1,033,650 | $14M | 0.5% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 961,111 | $13M | 0.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 821,906 | $11M | 0.4% | 2026-Q1 |
| MORGAN STANLEY added | 806,442 | $11M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 794,045 | $10M | 0.4% | 2026-Q1 |
| ARK Investment Management LLC added | 778,161 | $10M | 0.4% | 2026-Q1 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 775,000 | $10M | 0.4% | 2026-Q1 |
| Whitebark Investors LP added | 690,366 | $9M | 0.3% | 2026-Q1 |
| Blackstone Inc. | 525,844 | $7M | 0.2% | 2026-Q1 |
| Ilmarinen Mutual Pension Insurance Co | 514,788 | $7M | 0.2% | 2026-Q1 |
| Whetstone Capital Advisors, LLC new | 509,939 | $7M | 0.2% | 2026-Q1 |
| MOORE CAPITAL MANAGEMENT, LP trimmed | 503,200 | $7M | 0.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 477,206 | $6M | 0.2% | 2026-Q1 |
| Bastion Asset Management Inc. new | 391,024 | $5M | 0.2% | 2026-Q1 |
| Caisse de depot et placement du Quebec | 303,168 | $4M | 0.1% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 300,000 | $4M | 0.1% | 2026-Q1 |
| Militia Capital Management LLC new | 271,844 | $4M | 0.1% | 2026-Q1 |
| LAKEWOOD CAPITAL MANAGEMENT, LP added | 270,000 | $4M | 0.1% | 2026-Q1 |
| Centiva Capital, LP added | 270,000 | $4M | 0.1% | 2026-Q1 |
| Hudson Bay Capital Management LP added | 263,528 | $3M | 0.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 241,660 | $3M | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 239,020 | $3M | 0.1% | 2026-Q1 |
| North Reef Capital Management LP added | 223,820 | $3M | 0.1% | 2026-Q1 |
| BARCLAYS PLC added | 217,128 | $3M | 0.1% | 2026-Q1 |
| MIRAE ASSET SECURITIES (USA) INC. new | 199,182 | $3M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 195,093 | $3M | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 193,603 | $3M | 0.1% | 2026-Q1 |
| Cander Asset Management LP trimmed | 191,690 | $3M | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 190,388 | $2M | 0.1% | 2026-Q1 |
| TIGER GLOBAL MANAGEMENT LLC | 175,000 | $2M | 0.1% | 2026-Q1 |
| LMR Partners LLP | 173,587 | $2M | 0.1% | 2026-Q1 |
| DNCA FINANCE added | 171,500 | $2M | 0.1% | 2026-Q1 |
| Luxor Capital Group, LP trimmed | 165,470 | $2M | 0.1% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 161,327 | $2M | 0.1% | 2026-Q1 |
| Baader Bank Aktiengesellschaft new | 150,000 | $2M | 0.1% | 2026-Q1 |
| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) new | 2,501,675 | $72M | 2.5% | 2025-Q4 stale |
| NORGES BANK new | 1,777,365 | $51M | 1.8% | 2025-Q4 stale |
| Honeycomb Asset Management LP | 1,041,228 | $30M | 1.1% | 2025-Q4 stale |
| Russell Investments Group, Ltd. added | 860,283 | $25M | 0.9% | 2025-Q4 stale |
| Anomaly Capital Management, LP new | 614,033 | $23M | 0.8% | 2025-Q3 stale |
| ARMISTICE CAPITAL, LLC new | 549,680 | $16M | 0.6% | 2025-Q4 stale |
| Freestone Grove Partners LP added | 500,090 | $14M | 0.5% | 2025-Q4 stale |
| Point72 Asset Management, L.P. new | 381,646 | $14M | 0.5% | 2025-Q3 stale |
| HARVARD MANAGEMENT CO INC | 459,163 | $13M | 0.5% | 2025-Q4 stale |
| SQN Investors LP new | 348,000 | $13M | 0.4% | 2025-Q3 stale |
| COATUE MANAGEMENT LLC new | 330,000 | $12M | 0.4% | 2025-Q3 stale |
| Alyeska Investment Group, L.P. trimmed | 405,000 | $12M | 0.4% | 2025-Q4 stale |
| FRANKLIN RESOURCES INC new | 300,000 | $11M | 0.4% | 2025-Q3 stale |
| Alpha Wave Global, LP | 376,200 | $11M | 0.4% | 2025-Q4 stale |
| Sculptor Capital LP added | 348,000 | $10M | 0.4% | 2025-Q4 stale |
| ExodusPoint Capital Management, LP new | 250,000 | $9M | 0.3% | 2025-Q3 stale |
| D. E. Shaw & Co., Inc. new | 225,000 | $8M | 0.3% | 2025-Q3 stale |
| BURKEHILL GLOBAL MANAGEMENT, LP | 250,000 | $7M | 0.3% | 2025-Q4 stale |
| SOROS FUND MANAGEMENT LLC new | 155,678 | $6M | 0.2% | 2025-Q3 stale |
| TD Asset Management Inc new | 132,810 | $5M | 0.2% | 2025-Q3 stale |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ new | 117,881 | $4M | 0.2% | 2025-Q3 stale |
| Capital Research Global Investors new | 103,490 | $4M | 0.1% | 2025-Q3 stale |
| Monashee Investment Management LLC new | 100,000 | $4M | 0.1% | 2025-Q3 stale |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 121,219 | $4M | 0.1% | 2025-Q4 stale |
| Longaeva Partners L.P. trimmed | 115,000 | $3M | 0.1% | 2025-Q4 stale |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY trimmed | 101,131 | $3M | 0.1% | 2025-Q4 stale |
| Qube Research & Technologies Ltd new | 79,276 | $3M | 0.1% | 2025-Q3 stale |
| Counterpoint Mutual Funds LLC new | 99,851 | $3M | 0.1% | 2025-Q4 stale |
| GILDER GAGNON HOWE & CO LLC trimmed | 91,634 | $3M | 0.1% | 2025-Q4 stale |
| Militia Capital Partners, LP new | 88,114 | $3M | 0.1% | 2025-Q4 stale |
| Stockbridge Partners LLC | 82,119 | $2M | 0.1% | 2025-Q4 stale |
| Delta Global Management LP new | 79,847 | $2M | 0.1% | 2025-Q4 stale |
| SIH Partners, LLLP new | 77,222 | $2M | 0.1% | 2025-Q4 stale |
| WT Asset Management Ltd new | 55,000 | $2M | 0.1% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.