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Equibles

POWL

Powell Industries Inc

Company with tickers: POWL

CIK
80420
CUSIP
739128106
Shares Outstanding
36,431,649
13F Activity (30d)
219 filings 205 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: 477
Total Value: $5,670,593,305
Total Shares: 10,480,139
Showing 1–100 of 499 holdings by value · page 1 of 5

Institutional Ownership Trend

27 quarters

Superinvestors Holding POWL

All superinvestors →
Joel Greenblatt $2,014,981

Holder Concentration

Across 477 13F filers · Δ vs Dec 31, 2025
Top Holder
13.4%
Dec 2023 → Mar 2026 · range 13.0% – 17.4%
−0.2 pts
Top 5
29.5%
Dec 2023 → Mar 2026 · range 29.5% – 43.7%
−3.0 pts
Top 10
43.3%
Dec 2023 → Mar 2026 · range 43.3% – 56.9%
−3.2 pts
HHI
334
Dec 2023 → Mar 2026 · range 334 – 566
Broadly held−30

Quarterly Activity

vs Dec 31, 2025
New
101
Increased
159
Decreased
172
Sold Out
49
Unchanged
45
Holder count: +52
Institutional value: +72.8%
Shares held: +1.8%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega JANE STREET GROUP, LLC +151,047 250,101
Large PEAK6 LLC +94,601 122,503
Large Tidal Investments LLC +86,881 87,643
Mega JANUS HENDERSON GROUP PLC +79,932 224,966
Mega MORGAN STANLEY +79,277 271,996

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Voss Capital, LP −214,000 136,000
Small Rock Creek Group LLC −147,500 2,500
Mega Fisher Asset Management, LLC −60,358 256,915
Large Squarepoint Ops LLC −54,461 12,879
Large GW&K Investment Management, LLC −53,985 200,535

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 424,609 $229,747,437
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 383,599 $207,557,746
Large Jain Global LLC 87,800 $47,506,824
Mega VANGUARD FIDUCIARY TRUST CO 66,206 $35,822,742
Mid Encompass Capital Advisors LLC 40,000 $21,643,200

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 706,642 $225,263,335
Large LORD, ABBETT & CO. LLC 92,524 $29,494,800
Mid SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 84,963 $27,084,505
Large NEOS Investment Management LLC 76,338 $24,335,027
Small Broad Bay Capital Management, LP 69,990 $22,311,412
Filter: New 101 Increased 159 Reduced 172 Sold out 49 Unchanged 45
Showing 100 of 499
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $760,797,972 13.42% 1,406,073
Mega FIRST TRUST ADVISORS LP $279,495,415 4.93% 516,551
Mega VANGUARD CAPITAL MANAGEMENT LLC $229,747,437 4.05% 424,609
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $207,557,746 3.66% 383,599
Mega STATE STREET CORP $196,107,411 3.46% 362,437
Mega DIMENSIONAL FUND ADVISORS LP $175,090,781 3.09% 323,595
Mega MORGAN STANLEY $147,171,590 2.60% 271,996
Mega Fisher Asset Management, LLC $139,011,568 2.45% 256,915
Mega GEODE CAPITAL MANAGEMENT, LLC $131,405,065 2.32% 242,857
Mega Invesco Ltd. $130,837,470 2.31% 241,808
Mega JANUS HENDERSON GROUP PLC $121,724,603 2.15% 224,966
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $108,540,648 1.91% 200,600
Large GW&K Investment Management, LLC $108,505,477 1.91% 200,535
Large FEDERATED HERMES, INC. $84,815,371 1.50% 156,752
Mega JANE STREET GROUP, LLC $83,543,292 1.47% 154,401
Mega UBS Group AG $79,074,512 1.39% 146,142
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $74,127,960 1.31% 137,000
Mid Voss Capital, LP $73,586,880 1.30% 136,000
Mega GOLDMAN SACHS GROUP INC $68,422,270 1.21% 126,455
Large JACOBS LEVY EQUITY MANAGEMENT, INC $67,061,455 1.18% 123,940
Mega NORTHERN TRUST CORP Bank $60,826,048 1.07% 112,416
Large Rockefeller Capital Management L.P. $54,063,089 0.95% 99,917
Mega Capital World Investors $51,860,894 0.91% 95,847
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $50,727,332 0.89% 93,752
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $50,666,731 0.89% 93,640
Mega CITADEL ADVISORS LLC $50,320,440 0.89% 93,000
Mega BANK OF AMERICA CORP /DE/ Bank $49,128,439 0.87% 90,797
Mega ENVESTNET ASSET MANAGEMENT INC $47,737,865 0.84% 88,227
Large Tidal Investments LLC $47,421,874 0.84% 87,643
Mid Tema ETFs LLC Mutual Fund $45,819,736 0.81% 84,682
Large PEAK6 LLC $41,771,376 0.74% 77,200
Mid Portolan Capital Management, LLC $41,030,096 0.72% 75,830
Mega RAYMOND JAMES FINANCIAL INC $41,030,094 0.72% 75,830
Mega PRICE T ROWE ASSOCIATES INC /MD/ $40,760,097 0.72% 75,331
Mega Bank of New York Mellon Corp Bank $39,638,976 0.70% 73,259
Large Walleye Trading LLC $36,090,036 0.64% 66,700
Mega VANGUARD FIDUCIARY TRUST CO Bank $35,822,742 0.63% 66,206
Mega JANE STREET GROUP, LLC $35,765,388 0.63% 66,100
Large TCW GROUP INC $35,367,153 0.62% 65,364
Mega D. E. Shaw & Co., Inc. $35,224,308 0.62% 65,100
Mega PRINCIPAL FINANCIAL GROUP INC $35,197,794 0.62% 65,051
Small Vision One Management Partners, LP $35,161,001 0.62% 64,983
Large Baird Financial Group, Inc. $34,764,389 0.61% 64,250
Mid Stephens Investment Management Group LLC $32,344,139 0.57% 59,777
Small RPG Investment Advisory, LLC $31,376,688 0.55% 57,989
Large Allspring Global Investments Holdings, LLC $28,295,237 0.50% 52,294
Large Driehaus Capital Management LLC $27,247,706 0.48% 50,358
Large Jain Global LLC $26,675,244 0.47% 49,300
Large PEAK6 LLC $24,510,924 0.43% 45,300
Mega BNP PARIBAS ARBITRAGE, SA $22,828,165 0.40% 42,190
Large Public Sector Pension Investment Board Pension $22,323,337 0.39% 41,257
Mid ROYCE & ASSOCIATES LP $22,303,317 0.39% 41,220
Mid Hodges Capital Management Inc. $22,072,276 0.39% 40,793
Mid Encompass Capital Advisors LLC $21,643,200 0.38% 40,000
Small Aperture Investors, LLC $21,354,263 0.38% 39,466
Large Jain Global LLC $20,831,580 0.37% 38,500
Mid Carnegie Investment Counsel $19,682,326 0.35% 36,376
Large LOOMIS SAYLES & CO L P $19,398,258 0.34% 35,851
Large RENAISSANCE TECHNOLOGIES LLC $18,772,229 0.33% 34,694
Mid OBERWEIS ASSET MANAGEMENT INC/ $18,481,669 0.33% 34,157
Mid WINTON GROUP Ltd $16,424,483 0.29% 30,355
Mega JPMORGAN CHASE & CO $16,274,061 0.29% 30,077
Mega AQR CAPITAL MANAGEMENT LLC $16,043,020 0.28% 29,650
Mega JANE STREET GROUP, LLC $16,015,968 0.28% 29,600
Mega DEUTSCHE BANK AG\ Bank $15,989,454 0.28% 29,551
Mega AMERICAN CENTURY COMPANIES INC $15,985,667 0.28% 29,544
Mid Stratos Wealth Partners, LTD. $15,816,850 0.28% 29,232
Mega LPL Financial LLC $15,735,147 0.28% 29,081
Large DANSKE BANK A/S Bank $15,121,562 0.27% 27,947
Mid Venture Visionary Partners LLC $15,098,296 0.27% 27,904
Mega ROYAL BANK OF CANADA Bank $13,915,494 0.25% 25,718
Mega JENNISON ASSOCIATES LLC $13,848,400 0.24% 25,594
Mega CITADEL ADVISORS LLC $13,635,216 0.24% 25,200
Mega RHUMBLINE ADVISERS $13,612,490 0.24% 25,158
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $13,430,683 0.24% 24,822
Large Cerity Partners LLC $13,168,263 0.23% 24,337
Mega Legal & General Group Plc $12,487,042 0.22% 23,078
Mega WELLS FARGO & COMPANY/MN $12,349,609 0.22% 22,824
Mega Nuveen, LLC $12,046,062 0.21% 22,263
Mid Granite Investment Partners, LLC $11,854,521 0.21% 21,909
Large COMMONWEALTH EQUITY SERVICES, LLC $11,203,602 0.20% 20,706
Mega TWO SIGMA INVESTMENTS, LP $11,160,857 0.20% 20,627
Large Walleye Trading LLC $11,081,318 0.20% 20,480
Mega Swiss National Bank Bank $10,399,557 0.18% 19,220
Mid Nicholas Investment Partners, LP $10,020,801 0.18% 18,520
Small ADVISORS MANAGEMENT GROUP INC /ADV $9,945,591 0.18% 18,381
Large CIBC WORLD MARKET INC. $9,832,505 0.17% 18,172
Large Russell Investments Group, Ltd. $9,650,696 0.17% 17,836
Large POLEN CAPITAL MANAGEMENT LLC $9,460,783 0.17% 17,485
Mega AMERIPRISE FINANCIAL INC $9,444,551 0.17% 17,455
Large ASSETMARK, INC $8,940,805 0.16% 16,524
Mid Private Advisory Group LLC $8,915,374 0.16% 16,477
Large SEI INVESTMENTS CO $8,764,954 0.15% 16,199
Mega ALLIANCEBERNSTEIN L.P. $8,721,127 0.15% 16,118
Mid Vest Financial, LLC $8,555,556 0.15% 15,812
Mega BARCLAYS PLC $8,389,444 0.15% 15,505
Large Man Group plc $8,343,453 0.15% 15,420
Mid Munro Partners $7,943,054 0.14% 14,680
Large STATE OF WISCONSIN INVESTMENT BOARD $7,702,273 0.14% 14,235
Large CONGRESS ASSET MANAGEMENT CO $7,579,989 0.13% 14,009

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