267 tracked 13F filers disclose a position in PLAB as of the latest SEC 13F filings, a combined $2.0B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $379.3M | 9.4M | ▲+6.3% Added · +559K sh | Q1 2026 | |
| 2 | DIMENSIONAL FUND ADVISORS LP | $160.1M | 4.0M | ▼−2.3% Reduced · −92K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $115.0M | 2.8M | →First observed position No prior filed position | Q1 2026 | |
| 4 | AMERICAN CENTURY COMPANIES INC | $114.0M | 2.8M | ▲+15% Added · +359K sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $101.1M | 2.5M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $90.5M | 2.2M | ▼−0.2% Reduced · −4K sh | Q1 2026 | |
| 7 | VICTORY CAPITAL MANAGEMENT INC | $78.3M | 1.9M | ▼−9.5% Reduced · −204K sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $75.0M | 1.9M | ▲+1.4% Added · +25K sh | Q1 2026 | |
| 9 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | $34.8M | 1.1M | ▼−9.6% Reduced · −114K sh | Q2 2026 | |
| 10 | MORGAN STANLEY | $41.5M | 1.0M | ▼−27% Reduced · −382K sh | Q1 2026 | |
| 11 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $40.6M | 1.0M | ▼−1.8% Reduced · −19K sh | Q1 2026 | |
| 12 | PRICE T ROWE ASSOCIATES INC /MD/ | $36.5M | 903K | ▼−1.6% Reduced · −14K sh | Q1 2026 | |
| 13 | NORTHERN TRUST CORP | $34.4M | 851K | ▲+2.0% Added · +17K sh | Q1 2026 | |
| 14 | JANUS HENDERSON GROUP PLC | $33.3M | 823K | ▲+33% Added · +202K sh | Q1 2026 | |
| 15 | Boston Partners | $31.8M | 785K | ▼−3.0% Reduced · −24K sh | Q1 2026 | |
| 16 | NEEDHAM INVESTMENT MANAGEMENT LLC | $24.4M | 605K | ▼−22% Reduced · −170K sh | Q1 2026 | |
| 17 | Qube Research & Technologies Ltd | $22.1M | 548K | ▲+90% Added · +259K sh | Q1 2026 | |
| 18 | Polar Capital Holdings Plc | $20.7M | 513K | ▲New +513K sh | Q1 2026 | |
| 19 | AQR CAPITAL MANAGEMENT LLC | $19.7M | 486K | ▲+24% Added · +95K sh | Q1 2026 | |
| 20 | EASTERLY INVESTMENT PARTNERS LLC | $15.2M | 466K | ▲+16% Added · +63K sh | Q2 2026 | |
| 21 | Clark Capital Management Group, Inc. | $16.4M | 406K | ▲+50% Added · +136K sh | Q1 2026 | |
| 22 | VANGUARD FIDUCIARY TRUST CO | $15.3M | 379K | →First observed position No prior filed position | Q1 2026 | |
| 23 | Bank of New York Mellon Corp | $15.3M | 378K | ▼−2.9% Reduced · −11K sh | Q1 2026 | |
| 24 | HEARTLAND ADVISORS INC | $15.0M | 371K | ▼−3.8% Reduced · −14K sh | Q1 2026 | |
| 25 | Allianz Asset Management GmbH | $14.9M | 369K | ▲+213% Added · +252K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 10 funds opened a new position in PLAB and 24 added to an existing one, while 23 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 143 funds | $230.1B |
| AMAZON.COM INCAMZN | 142 funds | $173.2B |
| ALPHABET INC-CL AGOOGL | 141 funds | $137.5B |
| NVIDIA CORPNVDA | 140 funds | $337.6B |
| APPLE INCAAPL | 140 funds | $251.0B |
| META PLATFORMS INC-CLASS AMETA | 135 funds | $99.5B |
| JPMORGAN CHASE & COJPM | 135 funds | $54.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 133 funds | $29.1B |
| VISA INC-CLASS A SHARESV | 132 funds | $53.1B |
| ALPHABET INC-CL CGOOG | 131 funds | $104.4B |
| ELI LILLY & COLLY | 130 funds | $68.8B |
| APPLIED MATERIALS INCAMAT | 130 funds | $26.7B |
Ranked by how many of PLAB's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Apr 17, 2026 | ZHANG RUI | VP, CAO & Corporate Controller | Sell (S) | 5K | $213K |
| Apr 16, 2026 | Lee Kang Jyh | Director | Sell (S) | 10K | $461K |
| Apr 16, 2026 | Lee Kang Jyh | Director | Sell (S) | 10K | $458K |
| Apr 15, 2026 | Lee Kang Jyh | Director | Sell (S) | 10K | $451K |
| Apr 14, 2026 | MACRICOSTAS CONSTANTINE S | Director | Sell (S) | 50K | $2.3M |
| Apr 14, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | Sell (S) | 19K | $872K |
| Apr 13, 2026 | Lee Kang Jyh | Director | Sell (S) | 5K | $225K |
| Apr 13, 2026 | Rivera Eric | President, CFO | Sell (S) | 1K | $45K |
| Apr 9, 2026 | Wang Hsueh-Chun | SVP/COO IC & US/EU Mnstrm Ops | Sell (S) | 12K | $525K |
| Apr 9, 2026 | Lee Kang Jyh | Director | Sell (S) | 5K | $220K |
| Apr 9, 2026 | Rivera Eric | President, CFO | Sell (S) | 882 | $39K |
| Apr 9, 2026 | Rivera Eric | President, CFO | Sell (S) | 41K | $1.8M |
Connected entities for PLAB
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/PLAB/capital-change-brief"
Use Arkolith's capital_change_brief for PLAB. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PLAB. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.