Company · Ownership research

POWELL INDUSTRIES INC POWL

CIK 0000080420 · CUSIP 739128106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 739128106 (POWL), not CUSIP 739128906 (POWL), CUSIP 739128956 (POWL), and does not merge CUSIPs.

This page lists the top 20 of 478 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$760.80M 1,406,073 shares	0.01%	+1.87K(+0.10%)Added	SEC filing ↗ May 13, 2026	▾
02	FIRST TRUST ADVISORS LP CIK 1125816 · View history	$279.50M 516,551 shares	0.20%	-9.50K(-1.80%)Reduced	SEC filing ↗ May 13, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$229.75M 424,609 shares	0.01%	—	SEC filing ↗ May 15, 2026	▾
04	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history	$207.56M 383,599 shares	0.01%	—	SEC filing ↗ May 8, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$196.11M 362,437 shares	0.01%	+9.95K(+2.80%)Added	SEC filing ↗ May 15, 2026	▾
06	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$175.06M 323,595 shares	0.04%	-39.16K(-10.80%)Reduced	SEC filing ↗ May 7, 2026	▾
07	MORGAN STANLEY CIK 895421 · View history	$147.17M 271,996 shares	0.01%	+79.28K(+41.10%)Added	SEC filing ↗ May 15, 2026	▾
08	Fisher Asset Management, LLC CIK 850529 · View history	$139.01M 256,915 shares	0.05%	-60.36K(-19.00%)Reduced	SEC filing ↗ May 5, 2026	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$131.43M 242,857 shares	0.01%	+3.76K(+1.60%)Added	SEC filing ↗ May 15, 2026	▾
10	Invesco Ltd. CIK 914208 · Amended · View history	$130.84M 241,808 shares	0.01%	+26.83K(+12.50%)Added	SEC filing ↗ May 12, 2026	▾
11	JANUS HENDERSON GROUP PLC CIK 1274173 · Amended · View history	$121.64M 224,966 shares	0.06%	+79.93K(+55.10%)Added	SEC filing ↗ May 18, 2026	▾
12	GW&K Investment Management, LLC CIK 1082917 · View history	$108.51M 200,535 shares	0.96%	-53.98K(-21.20%)Reduced	SEC filing ↗ May 13, 2026	▾
13	FEDERATED HERMES, INC. CIK 1056288 · View history	$84.82M 156,752 shares	0.14%	-28.36K(-15.30%)Reduced	SEC filing ↗ May 11, 2026	▾
14	JANE STREET GROUP, LLC CIK 1595888 · View history	$83.54M 154,401 shares	0.09%	+153.15K(+12,212.70%)Added	SEC filing ↗ May 12, 2026	▾
15	UBS Group AG CIK 1610520 · View history	$79.07M 146,142 shares	0.01%	+48.09K(+49.00%)Added	SEC filing ↗ May 5, 2026	▾
16	Voss Capital, LLC CIK 1730145 · View history	$73.59M 136,000 shares	4.21%	-214.00K(-61.10%)Reduced	SEC filing ↗ May 15, 2026	▾
17	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$68.42M 126,455 shares	0.01%	+10.76K(+9.30%)Added	SEC filing ↗ May 15, 2026	▾
18	JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history	$67.06M 123,940 shares	0.28%	-7.55K(-5.70%)Reduced	SEC filing ↗ May 15, 2026	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$60.83M 112,416 shares	0.01%	-3.12K(-2.70%)Reduced	SEC filing ↗ May 14, 2026	▾
20	Rockefeller Capital Management L.P. CIK 1739439 · View history	$54.06M 99,917 shares	0.10%	-14.02K(-12.30%)Reduced	SEC filing ↗ May 14, 2026	▾

Showing 20 / 478 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

478

Cancelled or null records excluded

Disclosed shares

9,540,753

Not deduplicated across managers

Disclosed value

$5.11B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

POWELL INDUSTRIES INC · Q1 2026

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.