Company · Ownership research

ESPEY MFG & ELECTRONICS CORP ESP

CIK 0000033533 · CUSIP 296650104

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

This page lists the top 20 of 64 rows by value; the complete set is available through the API.

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	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$5.72M 103,212 shares	0.01%	-100(-0.10%)Reduced	SEC filing ↗ May 14, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$5.18M 93,523 shares	0.00%	-5.57K(-5.60%)Reduced	SEC filing ↗ May 7, 2026	▾
03	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$4.71M 85,006 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
04	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$3.43M 61,879 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ May 14, 2026	▾
05	De Lisle Partners LLP CIK 2011184 · View history	$3.13M 56,247 shares	0.37%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2026	▾
06	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$2.94M 53,086 shares	0.00%	+16.64K(+45.60%)Added	SEC filing ↗ May 15, 2026	▾
07	O'SHAUGHNESSY ASSET MANAGEMENT, LLC CIK 1423442 · View history	$1.71M 30,878 shares	0.01%	+3.96K(+14.70%)Added	SEC filing ↗ May 13, 2026	▾
08	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$1.53M 27,532 shares	0.00%	+27.53KNew	SEC filing ↗ May 15, 2026	▾
09	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$1.44M 26,073 shares	0.00%	+5.88K(+29.10%)Added	SEC filing ↗ May 15, 2026	▾
10	SEI INVESTMENTS CO CIK 350894 · View history	$1.38M 24,968 shares	0.00%	+24.97KNew	SEC filing ↗ May 13, 2026	▾
11	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$1.36M 24,454 shares	0.00%	-238(-1.00%)Reduced	SEC filing ↗ May 15, 2026	▾
12	RITHOLTZ WEALTH MANAGEMENT CIK 1698218 · View history	$1.33M 24,085 shares	0.02%	+6.28K(+35.20%)Added	SEC filing ↗ Apr 20, 2026	▾
13	Informed Momentum Co LLC CIK 1510989 · View history	$1.14M 20,510 shares	0.13%	+20.51KNew	SEC filing ↗ May 13, 2026	▾
14	CITADEL ADVISORS LLC CIK 1423053 · View history	$1.12M 20,280 shares	0.00%	+20.28KNew	SEC filing ↗ May 15, 2026	▾
15	Sidoxia Capital Management, LLC CIK 2132534 · View history	$1.03M 18,633 shares	0.89%	—	SEC filing ↗ May 11, 2026	▾
16	STEEL PARTNERS HOLDINGS L.P. CIK 1452857 · View history	$921.47K 16,627 shares	0.96%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2026	▾
17	SummerHaven Investment Management, LLC CIK 1846436 · View history	$887.66K 16,017 shares	0.54%	-1.93K(-10.80%)Reduced	SEC filing ↗ Apr 24, 2026	▾
18	WELLS FARGO & COMPANY/MN CIK 72971 · Amended · View history	$859.04K 15,501 shares	0.00%	-4.50K(-22.50%)Reduced	SEC filing ↗ May 11, 2026	▾
19	NAPLES GLOBAL ADVISORS, LLC CIK 1582151 · View history	$824.51K 14,877 shares	0.06%	+436(+3.00%)Added	SEC filing ↗ Apr 20, 2026	▾
20	Sage Investment Advisers LLC CIK 1925418 · View history	$823.35K 14,440 shares	0.61%	+6(0.00%)Added	SEC filing ↗ Apr 10, 2026	▾

Showing 20 / 64 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

935,529

Not deduplicated across managers

Disclosed value

$51.87M

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.

ESPEY MFG & ELECTRONICS CORP · Q1 2026

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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.