PLPC · Preformed Line Products Co · Holdings
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.
Institutional Ownership Trend
Holder Concentration
Across 206 13F filersWho Holds PLPC
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 206 filers, like-for-like change +4.7%; actively managed books +4.7%; index-like books +4.7%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 70.9% | 106 | +14.7% |
| Exempt adviser | 1.0% | 2 | -15.3% |
| Adviser | 1.3% | 5 | -44.6% |
| Bank | 4.5% | 13 | -7.3% |
| Insurer | 0.4% | 1 | 0.0% |
| Broker-dealer | 0.2% | 1 | +32.1% |
| Benefit plan | 0.2% | 4 | +14.7% |
| Non-US | 0.2% | 4 | -17.2% |
| Holding company | 11.3% | 7 | -15.7% |
| Unknown | 10.0% | 63 | -8.9% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 18.5% | 25 | +4.7% |
| Systematic-like | 5.4% | 17 | +49.0% |
| Concentrated | 1.6% | 24 | +4.9% |
| Diversified active | 74.5% | 140 | +2.5% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 69.2% | 120 | -2.5% |
| Medium turnover | 18.3% | 42 | +29.8% |
| High turnover | 6.4% | 29 | +29.0% |
| Unknown | 6.1% | 15 | +11.9% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 7.4% | 27 | +5.2% |
| Medium horizon | 13.2% | 31 | +5.7% |
| Long horizon | 75.7% | 139 | +2.5% |
| Unknown | 3.7% | 9 | +75.6% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 1.9% | 36 | -12.1% |
| $1B to $10B | 4.4% | 50 | +1.9% |
| $10B to $100B | 25.1% | 62 | +54.9% |
| $100B or more | 68.6% | 58 | -5.8% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 32.9% | 49 | +4.8% |
| Pooled investment vehicles | 4.1% | 17 | +21.2% |
| Registered funds and BDCs | 20.1% | 15 | -3.2% |
| Pension and profit sharing plans | 0.0% | 1 | +200.0% |
| Insurance companies | 0.1% | 4 | +14.6% |
| Governments and sovereign funds | 0.7% | 2 | -4.8% |
| Corporations | 0.6% | 1 | +3.3% |
| Other investment advisers | 0.0% | 2 | 0.0% |
| Other | 0.1% | 2 | -26.8% |
| Diversified | 12.2% | 12 | +164.2% |
| Unknown | 29.2% | 101 | -13.6% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 6.8% | 27 | +11.1% |
| Private equity funds | 0.7% | 6 | -7.2% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.0% | 2 | -76.4% |
| Securitized asset funds | 0.1% | 1 | 0.0% |
| Other private funds | 50.9% | 15 | +17.6% |
| Mixed private funds | 0.5% | 3 | -9.2% |
| Private funds, type not stated | 0.2% | 1 | -28.4% |
| No private funds | 12.6% | 51 | +6.8% |
| Unknown | 28.2% | 99 | -13.5% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 92.2% | 178 | +5.2% |
| Outside the US | 7.8% | 28 | -0.6% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 2 holders with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
206 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 32.1% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies PLPC's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | PWP Perella Weinberg Partners | 3 |
| 2 | PDFS Pdf Solutions Inc | 6 |
| 3 | NWPX NWPX Infrastructure, Inc. | 4 |
| 4 | LMAT Lemaitre Vascular Inc | 5 |
| 5 | ICFI ICF International, Inc. | 3 |
| 6 | PAHC Phibro Animal Health Corp | 3 |
| 7 | CDNL Cardinal Infrastructure Group Inc. | 4 |
| 8 | COCO Vita Coco Company, Inc. | 4 |
| 9 | IRMD Iradimed Corp | 3 |
| 10 | MD Pediatrix Medical Group, Inc. | 3 |
Shareholder Targets
13F filers that own its peers but not PLPC, quarter ended Jun 30, 2026Found through its holder-overlap peers: PWP, PDFS, NWPX, LMAT, ICFI, PAHC, CDNL, COCO, IRMD, MD, BCPC, PRLB, IMKTA, CCB, INSW, NPKI, AMSC, PNTG, LIND, MGRC. 956 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | AMERIPRISE FINANCIAL INC Adviser, Diversified active | $434,271,728 18 held | COCO, CDNL, NPKI |
| 2 | River Road Asset Management, LLC Registered adviser, Diversified active | $328,807,529 2 held | MGRC, IMKTA |
| 3 | Conestoga Capital Advisors, LLC Adviser, Diversified active | $320,894,312 5 held | BCPC, LMAT, COCO |
| 4 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $320,398,529 9 held | COCO, PWP, PNTG |
| 5 | Driehaus Capital Management LLC Registered adviser, Diversified active | $284,906,302 4 held | CDNL, COCO, LIND |
| 6 | LOOMIS SAYLES & CO L P Registered adviser, Diversified active | $275,636,026 10 held | COCO, MGRC, PDFS |
| 7 | CONGRESS ASSET MANAGEMENT CO Registered adviser, Diversified active | $257,224,323 3 held | LMAT, BCPC, COCO |
| 8 | EMERALD ADVISERS, LLC Registered adviser, Diversified active | $219,754,331 6 held | CDNL, PDFS, AMSC |
| 9 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser, Diversified active | $200,556,474 7 held | INSW, PWP, CDNL |
| 10 | D. E. Shaw & Co., Inc. Unknown, Systematic-like | $198,021,136 14 held | COCO, MD, PRLB |
Fund Ownership of PLPC by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 11.92% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 1.80% | 88,181 |
| Index ETFs | 10.11% | 494,325 |
| Active ETFs | 2.17% | 105,905 |
| Active funds | 12.28% | 600,190 |
| Unclassified | 0.66% | 32,351 |
| All registered funds | 27.02% | 1,320,952 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega HighTower Advisors, LLC Registered adviser | $416,607,959 | 30.68% | 1,014,731 | Shares | 2026-08-05 | |
| Large WASATCH ADVISORS LP Registered adviser | $112,659,616 | 8.30% | 276,669 | Shares | 2026-10-13 | |
| Mega BlackRock, Inc. Holding company | $93,241,455 | 6.87% | 227,108 | Shares | 2026-08-07 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $89,656,859 | 6.60% | 218,377 | Shares | 2026-08-11 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $66,862,569 | 4.92% | 162,857 | Shares | 2026-08-14 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $45,113,564 | 3.32% | 109,883 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $34,379,883 | 2.53% | 83,739 | Shares | 2026-08-12 | |
| Mega FMR LLC Holding company | $31,122,910 | 2.29% | 75,806 | Shares | 2026-08-13 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $28,563,480 | 2.10% | 69,572 | Shares | 2026-08-14 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $27,194,262 | 2.00% | 66,237 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $24,650,843 | 1.82% | 60,042 | Shares | 2026-09-22 | |
| Large Point72 Asset Management, L.P. Registered adviser | $20,874,102 | 1.54% | 50,843 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $15,321,687 | 1.13% | 37,319 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $14,969,017 | 1.10% | 36,460 | Shares | 2026-08-13 | |
| Mid Tributary Capital Management, LLC Registered adviser | $13,517,004 | 1.00% | 33,195 | Shares | 2026-10-28 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $13,174,870 | 0.97% | 32,090 | Shares | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $12,264,658 | 0.90% | 29,873 | Shares | 2026-08-11 | |
| Mega MORGAN STANLEY Holding company | $12,074,156 | 0.89% | 29,409 | Shares | 2026-08-13 | |
| Mega PNC FINANCIAL SERVICES GROUP, INC. Bank | $10,911,862 | 0.80% | 26,578 | Shares | 2026-08-07 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $10,369,103 | 0.76% | 25,256 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $10,325,582 | 0.76% | 25,150 | Shares | 2026-08-13 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $8,923,111 | 0.66% | 21,734 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $8,540,058 | 0.63% | 20,801 | Shares | 2026-09-02 | |
| Mid Informed Momentum Co LLC Registered adviser | $8,228,854 | 0.61% | 20,043 | Shares | 2026-08-13 | |
| Mid Ranger Investment Management, L.P. Registered adviser | $7,939,819 | 0.58% | 19,339 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $7,582,220 | 0.56% | 18,468 | Shares | 2026-08-06 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $7,576,063 | 0.56% | 18,453 | Shares | 2026-08-13 | |
| Mega SEI INVESTMENTS CO Holding company | $7,443,863 | 0.55% | 18,131 | Shares | 2026-08-14 | |
| Mega RAYMOND JAMES FINANCIAL INC | $7,144,975 | 0.53% | 17,403 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $7,030,018 | 0.52% | 17,123 | Shares | 2026-08-14 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $5,407,075 | 0.40% | 13,170 | Shares | 2026-08-04 | |
| Large CAPITAL FUND MANAGEMENT S.A. | $5,216,164 | 0.38% | 12,705 | Shares | 2026-08-13 | |
| Mid Susquehanna Portfolio Strategies, LLC | $5,192,352 | 0.38% | 12,647 | Shares | 2026-08-14 | |
| Small Cardinal Capital Management Registered adviser | $5,015,482 | 0.37% | 12,317 | Shares | 2026-10-21 | |
| Mega Russell Investments Group, Ltd. | $5,003,082 | 0.37% | 12,186 | Shares | 2026-08-06 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $4,559,679 | 0.34% | 11,106 | Shares | 2026-08-07 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $4,300,205 | 0.32% | 10,474 | Shares | 2026-08-14 | |
| Large Tidal Investments LLC Registered adviser | $4,116,684 | 0.30% | 10,027 | Shares | 2026-08-13 | |
| Large Rockefeller Capital Management L.P. Registered adviser | $4,105,600 | 0.30% | 10,000 | Shares | 2026-08-13 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $3,934,396 | 0.29% | 9,583 | Shares | 2026-09-23 | |
| Small Riverwater Partners LLC Registered adviser | $3,662,195 | 0.27% | 8,920 | Shares | 2026-08-14 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $3,527,120 | 0.26% | 8,591 | Shares | 2026-08-13 | |
| Mega AMERICAN CENTURY COMPANIES INC | $3,518,499 | 0.26% | 8,570 | Shares | 2026-08-12 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $3,449,112 | 0.25% | 8,401 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $3,375,623 | 0.25% | 8,222 | Shares | 2026-08-14 | |
| Large B. Metzler seel. Sohn & Co. AG | $3,318,556 | 0.24% | 8,083 | Shares | 2026-08-11 | |
| Mid Defiance ETFs, LLC Registered adviser | $3,294,744 | 0.24% | 8,025 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $3,259,024 | 0.24% | 7,938 | Shares | 2026-08-11 | |
| Large STOREBRAND ASSET MANAGEMENT AS | $3,114,097 | 0.23% | 7,585 | Shares | 2026-08-12 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $3,073,041 | 0.23% | 7,485 | Shares | 2026-08-13 | |
| Large Quantinno Capital Management LP Registered adviser | $3,014,742 | 0.22% | 7,343 | Shares | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3,010,636 | 0.22% | 7,333 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $2,881,719 | 0.21% | 7,019 | Shares | 2026-08-14 | |
| Mega Creative Planning Registered adviser | $2,833,273 | 0.21% | 6,901 | Shares | 2026-08-13 | |
| Large POLEN CAPITAL MANAGEMENT LLC Registered adviser | $2,822,600 | 0.21% | 6,875 | Shares | 2026-08-04 | |
| Mid RITHOLTZ WEALTH MANAGEMENT Registered adviser | $2,759,373 | 0.20% | 6,721 | Shares | 2026-08-11 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $2,738,845 | 0.20% | 6,671 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $2,719,960 | 0.20% | 6,625 | Shares | 2026-08-07 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $2,678,082 | 0.20% | 6,523 | Shares | 2026-08-13 | |
| Small ROBOTTI ROBERT Holding company | $2,436,673 | 0.18% | 5,935 | Shares | 2026-08-10 | |
| Mega UBS Group AG Bank | $2,394,385 | 0.18% | 5,832 | Shares | 2026-08-13 | |
| Small WealthBridge Capital Management, LLC Registered adviser | $2,284,799 | 0.17% | 5,611 | Shares | 2026-10-16 | |
| Mega Swiss National Bank | $2,214,150 | 0.16% | 5,393 | Shares | 2026-08-11 | |
| Mid Sowell Financial Services LLC Registered adviser | $2,046,180 | 0.15% | 5,025 | Shares | 2026-10-23 | |
| Small Round Rock Advisors LLC Registered adviser | $1,878,722 | 0.14% | 4,576 | Shares | 2026-08-12 | |
| Small Ausbil Investment Management Ltd Registered adviser | $1,853,574 | 0.14% | 4,552 | Shares | 2026-10-08 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $1,794,146 | 0.13% | 4,370 | Shares | 2026-08-13 | |
| Mid Linden Thomas Advisory Services, LLC Registered adviser | $1,757,882 | 0.13% | 4,317 | Shares | 2026-10-19 | |
| Large Clearstead Advisors, LLC Registered adviser | $1,693,970 | 0.12% | 4,126 | Shares | 2026-08-06 | |
| Mid INGALLS & SNYDER LLC Registered adviser | $1,670,979 | 0.12% | 4,070 | Shares | 2026-08-14 | |
| Small SHAKER INVESTMENTS LLC/OH Registered adviser | $1,643,061 | 0.12% | 4,002 | Shares | 2026-07-15 | |
| Mid OPPENHEIMER ASSET MANAGEMENT INC. | $1,566,498 | 0.12% | 3,847 | Shares | 2026-10-27 | |
| Large Man Group plc | $1,435,728 | 0.11% | 3,497 | Shares | 2026-08-14 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $1,320,771 | 0.10% | 3,217 | Shares | 2026-08-13 | |
| Mega JPMORGAN CHASE & CO Bank | $1,300,241 | 0.10% | 3,167 | Shares | 2026-08-12 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $1,297,369 | 0.10% | 3,160 | Shares | 2026-08-12 | |
| Large OSAIC HOLDINGS, INC. Holding company | $1,270,271 | 0.09% | 3,094 | Shares | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $1,255,081 | 0.09% | 3,057 | Shares | 2026-08-24 | |
| Mega DEUTSCHE BANK AG\ Non-US | $1,250,975 | 0.09% | 3,047 | Shares | 2026-08-07 | |
| Large VIRGINIA RETIREMENT SYSTEMS ET Al | $1,213,456 | 0.09% | 2,980 | Shares | 2026-10-28 | |
| Mega BARCLAYS PLC Bank | $1,160,242 | 0.09% | 2,826 | Shares | 2026-08-14 | |
| Mid RBF Capital, LLC | $1,149,568 | 0.08% | 2,800 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $1,145,462 | 0.08% | 2,790 | Shares | 2026-08-14 | |
| Small Baker Ellis Asset Management LLC Registered adviser | $1,136,088 | 0.08% | 2,790 | Shares | 2026-10-14 | |
| Large Vident Advisory, LLC Registered adviser | $1,105,226 | 0.08% | 2,692 | Shares | 2026-08-12 | |
| Mid AZZAD ASSET MANAGEMENT INC /ADV Registered adviser | $1,058,834 | 0.08% | 2,579 | Shares | 2026-07-29 | |
| Mega FRANKLIN RESOURCES INC Adviser | $999,713 | 0.07% | 2,435 | Shares | 2026-08-13 | |
| Large Janney Montgomery Scott LLC Adviser | $979,185 | 0.07% | 2,385 | Shares | 2026-08-05 | |
| Mid TWO SIGMA SECURITIES, LLC | $956,194 | 0.07% | 2,329 | Shares | 2026-08-14 | |
| Small Fruth Investment Management | $895,840 | 0.07% | 2,200 | Shares | 2026-10-13 | |
| Large VOLORIDGE INVESTMENT MANAGEMENT, LLC Registered adviser | $893,789 | 0.07% | 2,177 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $888,041 | 0.07% | 2,163 | Shares | 2026-08-14 | |
| Mid GSA CAPITAL PARTNERS LLP Registered adviser | $873,261 | 0.06% | 2,127 | Shares | 2026-08-06 | |
| Mega Legal & General Group Plc | $868,743 | 0.06% | 2,116 | Shares | 2026-08-14 | |
| Large STRS OHIO Benefit plan | $862,176 | 0.06% | 2,100 | Shares | 2026-07-30 | |
| Mega VANGUARD ASSET MANAGEMENT, Ltd | $792,380 | 0.06% | 1,930 | Shares | 2026-08-13 | |
| Large Cambridge Investment Research Advisors, Inc. | $787,043 | 0.06% | 1,917 | Shares | 2026-07-30 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $774,316 | 0.06% | 1,886 | Shares | 2026-08-14 | |
| Large Baird Financial Group, Inc. | $763,641 | 0.06% | 1,860 | Shares | 2026-08-12 | |
| Mega ROYAL BANK OF CANADA Bank | $759,534 | 0.06% | 1,850 | Shares | 2026-08-14 |
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