Skip to main content
Equibles

PLAB

Photronics Inc

Company with tickers: PLAB

CIK
810136
CUSIP
719405102
Shares Outstanding
58,966,394
13F Activity (30d)
218 filings 213 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 335
Total Value: $2,267,213,250
Total Shares: 56,105,258
Showing 1–100 of 342 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 335 13F filers · Δ vs Dec 31, 2025
Top Holder
16.7%
Jun 2023 → Mar 2026 · range 15.7% – 19.9%
+1.1 pts
Top 5
39.0%
Jun 2023 → Mar 2026 · range 39.0% – 46.2%
−3.4 pts
Top 10
56.8%
Jun 2023 → Mar 2026 · range 55.4% – 60.8%
−1.9 pts
HHI
506
Jun 2023 → Mar 2026 · range 506 – 647
Broadly held −20

Quarterly Activity

vs Dec 31, 2025
New
76
Increased
109
Decreased
108
Sold Out
53
Unchanged
42
Holder count: +23
Institutional value: +25.8%
Shares held: -0.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega BlackRock, Inc. +559,408 9,387,060
Mega AMERICAN CENTURY COMPANIES INC +358,800 2,819,927
Large Qube Research & Technologies Ltd +259,364 548,065
Large Allianz Asset Management GmbH +251,524 369,478
Mega JANUS HENDERSON GROUP PLC +202,040 823,488

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega CITADEL ADVISORS LLC −441,858 111,156
Mega MORGAN STANLEY −382,184 1,026,036
Large Walleye Trading LLC −376,329 6,700
Large PEAK6 LLC −290,500 11,100
Mega JANE STREET GROUP, LLC −284,943 48,100

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 2,844,737 $114,955,822
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,503,091 $101,149,907
Mid VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 1,185,405 $47,902,214
Large Polar Capital Holdings Plc 513,451 $20,748,554
Mega VANGUARD FIDUCIARY TRUST CO 378,648 $15,301,165

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 5,670,667 $181,461,344
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 535,199 $17,126,368
Mega NORGES BANK 360,634 $11,540,288
Mega Clearbridge Investments, LLC 166,361 $5,323,552
Mid Edgestream Partners, L.P. 77,597 $2,483,104
Filter: New 76 Increased 109 Reduced 108 Sold out 53 Unchanged 42
Showing 100 of 342
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $379,331,086 16.73% 9,387,060
Mega DIMENSIONAL FUND ADVISORS LP $160,131,290 7.06% 3,962,665
Large LSV ASSET MANAGEMENT $116,482,552 5.14% 2,882,518
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $114,955,822 5.07% 2,844,737
Mega AMERICAN CENTURY COMPANIES INC $113,953,250 5.03% 2,819,927
Mega VANGUARD CAPITAL MANAGEMENT LLC $101,149,907 4.46% 2,503,091
Mega STATE STREET CORP $90,509,105 3.99% 2,239,770
Mega VICTORY CAPITAL MANAGEMENT INC $78,339,917 3.46% 1,938,627
Mega GEODE CAPITAL MANAGEMENT, LLC $74,944,507 3.31% 1,854,603
Mega Invesco Ltd. $57,686,002 2.54% 1,427,518
Mid VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. $47,902,214 2.11% 1,185,405
Mega MORGAN STANLEY $41,462,110 1.83% 1,026,036
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $40,607,968 1.79% 1,004,899
Mega PRICE T ROWE ASSOCIATES INC /MD/ $36,487,926 1.61% 902,943
Mega NORTHERN TRUST CORP Bank $34,402,404 1.52% 851,334
Mega JANUS HENDERSON GROUP PLC $33,277,150 1.47% 823,488
Large Boston Partners $31,731,507 1.40% 785,239
Mid NEEDHAM INVESTMENT MANAGEMENT LLC $24,448,050 1.08% 605,000
Large Qube Research & Technologies Ltd $22,147,306 0.98% 548,065
Large Polar Capital Holdings Plc $20,748,554 0.92% 513,451
Mega AQR CAPITAL MANAGEMENT LLC $19,653,560 0.87% 486,354
Large Clark Capital Management Group, Inc. $16,410,581 0.72% 406,102
Mid EASTERLY INVESTMENT PARTNERS LLC $16,313,436 0.72% 403,698
Mega VANGUARD FIDUCIARY TRUST CO Bank $15,301,165 0.67% 378,648
Mega Bank of New York Mellon Corp Bank $15,279,625 0.67% 378,115
Mid ROYCE & ASSOCIATES LP $15,098,509 0.67% 373,633
Mid HEARTLAND ADVISORS INC $14,978,976 0.66% 370,675
Large Allianz Asset Management GmbH $14,930,604 0.66% 369,478
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $14,662,121 0.65% 362,834
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $14,212,560 0.63% 351,709
Mega PRINCIPAL FINANCIAL GROUP INC $13,524,418 0.60% 334,680
Large TCW GROUP INC $12,911,803 0.57% 319,520
Mega GOLDMAN SACHS GROUP INC $12,195,615 0.54% 301,797
Mega Nuveen, LLC $11,779,271 0.52% 291,494
Large Empowered Funds, LLC $11,724,637 0.52% 290,142
Large Universal- Beteiligungs- und Servicegesellschaft mbH $11,693,603 0.52% 289,374
Large PRUDENTIAL FINANCIAL INC $10,760,213 0.47% 266,276
Mega UBS Group AG $10,200,816 0.45% 252,433
Mid Cambria Investment Management, L.P. $9,473,437 0.42% 234,433
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $9,233,685 0.41% 228,500
Mega JPMORGAN CHASE & CO $9,197,556 0.41% 227,606
Mid MEEDER ASSET MANAGEMENT INC $8,915,008 0.39% 220,614
Large Public Sector Pension Investment Board Pension $8,540,128 0.38% 211,337
Mega CITIGROUP INC $8,144,755 0.36% 201,553
Small KESTREL INVESTMENT MANAGEMENT CORP $8,100,184 0.36% 200,450
Mid JTC Employer Solutions Trustee Ltd $7,752,900 0.34% 191,856
Mega D. E. Shaw & Co., Inc. $7,750,637 0.34% 191,800
Mega RHUMBLINE ADVISERS $6,715,535 0.30% 166,185
Large Allspring Global Investments Holdings, LLC $6,444,748 0.28% 159,484
Large VOYA INVESTMENT MANAGEMENT LLC $5,988,841 0.26% 148,202
Mega Legal & General Group Plc $5,803,359 0.26% 143,612
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $5,484,768 0.24% 135,728
Mega AMERIPRISE FINANCIAL INC $5,437,083 0.24% 134,548
Small DENALI ADVISORS LLC $5,194,826 0.23% 128,553
Large STATE OF WISCONSIN INVESTMENT BOARD $5,141,606 0.23% 127,236
Large SEI INVESTMENTS CO $5,140,474 0.23% 127,208
Mega FIRST TRUST ADVISORS LP $5,108,389 0.23% 126,414
Large BESSEMER GROUP INC $4,891,023 0.22% 121,035
Mega ROYAL BANK OF CANADA Bank $4,879,303 0.22% 120,745
Large LAZARD ASSET MANAGEMENT LLC $4,742,719 0.21% 117,365
Mega Swiss National Bank Bank $4,711,806 0.21% 116,600
Mid THOMPSON SIEGEL & WALMSLEY LLC $4,491,207 0.20% 111,141
Mega BANK OF AMERICA CORP /DE/ Bank $4,490,763 0.20% 111,130
Large Creative Planning $4,085,329 0.18% 101,097
Micro Decker Retirement Planning Inc. Pension $3,935,327 0.17% 97,385
Small Penbrook Management LLC $3,908,859 0.17% 96,730
Large NATIXIS ADVISORS, LLC $3,865,862 0.17% 95,666
Large Cresset Asset Management, LLC $3,724,145 0.16% 92,159
Small ISTHMUS PARTNERS, LLC $3,702,081 0.16% 91,613
Small Phocas Financial Corp. $3,645,507 0.16% 90,213
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $3,633,424 0.16% 89,914
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $3,613,257 0.16% 89,415
Mid MARTINGALE ASSET MANAGEMENT L P $3,522,337 0.16% 87,165
Large FEDERATED HERMES, INC. $3,510,861 0.15% 86,881
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $3,344,614 0.15% 82,767
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $3,336,572 0.15% 82,568
Small Skylands Capital, LLC $3,315,640 0.15% 82,050
Mid New Age Alpha Advisors, LLC $3,296,526 0.15% 81,577
Small Mill Road Capital Management LLC $3,240,882 0.14% 80,200
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $3,218,131 0.14% 79,637
Mega CITADEL ADVISORS LLC $3,192,390 0.14% 79,000
Small Uncommon Cents Investing LLC $3,188,349 0.14% 78,900
Mid INTECH INVESTMENT MANAGEMENT LLC $3,179,256 0.14% 78,675
Mid Linden Thomas Advisory Services, LLC $3,139,048 0.14% 77,680
Mega TWO SIGMA INVESTMENTS, LP $3,133,270 0.14% 77,537
Mid WEDGE CAPITAL MANAGEMENT L L P/NC $3,074,514 0.14% 76,083
Small Inspire Advisors, LLC $3,033,417 0.13% 75,066
Large Man Group plc $2,997,411 0.13% 74,175
Large Robeco Institutional Asset Management B.V. $2,981,288 0.13% 73,776
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $2,821,102 0.12% 69,812
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $2,807,848 0.12% 69,484
Mid NorthCrest Asset Manangement, LLC $2,749,617 0.12% 68,043
Mid ALGERT GLOBAL LLC $2,744,243 0.12% 67,910
Mega ENVESTNET ASSET MANAGEMENT INC $2,712,359 0.12% 67,121
Mega FRANKLIN RESOURCES INC $2,602,159 0.11% 64,394
Mid SEGALL BRYANT & HAMILL, LLC $2,520,048 0.11% 62,362
Mid Inspire Investing, LLC $2,434,217 0.11% 60,238
Mega ALLIANCEBERNSTEIN L.P. $2,335,253 0.10% 57,789
Large Rockefeller Capital Management L.P. $2,106,006 0.09% 52,116
Small Pacific Ridge Capital Partners, LLC $2,086,812 0.09% 51,641

Report a Problem

Category
Description
Email (optional, for follow-up)