ESP Institutional Ownership & Shareholders
ESPEY MFG & ELECTRONICS CORP (ESP) is currently held by 79 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $70.65M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ESP tracked by InsiderSet, reporting ownership valued at approximately $7.81M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $6.17M, representing an estimated loss of -21.01% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 65% of the total disclosed ESP value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Renaissance Technologies LLC, and several other long-term asset managers with concentrated positions in ESPEY MFG & ELECTRONICS CORP (ESP).
This page ranks the largest institutional ESP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
79
Total Reported Value
$70.65M
Largest Holder
Blackrock, Inc.
Largest Position
$7.81M
Insider Transactions (90d)
26
Latest Filing Quarter
Q2 2026
New Institutional Positions
93
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 115,929 | $7,807,818 | $6,167,423 | -$1,640,395 | -21.01% | |
| Vanguard Capital Management Llc | 0.00% | 98,005 | $6,600,637 | $5,213,866 | -$1,386,771 | -21.01% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 92,712 | $6,244,153 | $4,932,278 | -$1,311,875 | -21.01% |
| Dimensional Fund Advisors Lp | 0.00% | 90,994 | $6,128,179 | $4,840,881 | -$1,287,298 | -21.01% | |
| American Century Companies Inc | 0.00% | 71,928 | $4,844,351 | $3,826,570 | -$1,017,781 | -21.01% | |
| De Lisle Partners Llp | 0.41% | 56,247 | $3,776,705 | $2,992,340 | -$784,365 | -20.77% | |
| Geode Capital Management, Llc | 0.00% | 55,582 | $3,744,742 | $2,956,962 | -$787,780 | -21.04% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 38,064 | $2,563,610 | $2,025,005 | -$538,605 | -21.01% | |
| O'Shaughnessy Asset Management, Llc | 0.01% | 34,370 | $2,314,820 | $1,828,484 | -$486,336 | -21.01% | |
| Ritholtz Wealth Management | 0.03% | 26,386 | $1,777,129 | $1,403,735 | -$373,394 | -21.01% | |
| Two Sigma Investments, Lp | 0.00% | 25,151 | $1,693,920 | $1,338,033 | -$355,887 | -21.01% | |
| State Street Corp | 0.00% | 25,093 | $1,690,014 | $1,334,948 | -$355,066 | -21.01% | |
| Bank Of New York Mellon Corp | 0.00% | 20,031 | $1,349,112 | $1,065,649 | -$283,463 | -21.01% | |
| Informed Momentum Co Llc | 0.12% | 19,700 | $1,326,795 | $1,048,040 | -$278,755 | -21.01% | |
| Northern Trust Corp | 0.00% | 17,466 | $1,176,335 | $929,191 | -$247,144 | -21.01% | |
| Sidoxia Capital Management, Llc | 0.83% | 19,137 | $1,176,150 | $1,018,088 | -$158,062 | -13.44% | |
| Wells Fargo & Company/Mn | 0.00% | 17,369 | $1,169,820 | $924,031 | -$245,789 | -21.01% | |
| Steel Partners Holdings L.P. | 1.44% | 16,627 | $1,119,828 | $884,556 | -$235,272 | -21.01% | |
| Vanguard Fiduciary Trust Co | 0.00% | 16,221 | $1,092,484 | $862,957 | -$229,527 | -21.01% | |
| Vanguard Portfolio Management Llc | 0.00% | 16,170 | $1,089,050 | $860,244 | -$228,806 | -21.01% | |
| Naples Global Advisors, Llc | 0.06% | 15,274 | $1,028,687 | $812,577 | -$216,110 | -21.01% | |
| Sei Investments Co | 0.00% | 13,853 | $933,000 | $736,980 | -$196,020 | -21.01% | |
| Morgan Stanley | 0.00% | 12,491 | $841,269 | $664,521 | -$176,748 | -21.01% | |
| Man Group Plc | 0.00% | 12,349 | $831,705 | $656,967 | -$174,738 | -21.01% | |
| Sage Investment Advisers Llc | 0.49% | 12,249 | $752,820 | $651,647 | -$101,173 | -13.44% | |
| Flagship Harbor Advisors, Llc | 0.02% | 9,592 | $589,524 | $510,294 | -$79,230 | -13.44% | |
| Morgan Dempsey Capital Management Llc | 0.24% | 8,387 | $567,681 | $446,188 | -$121,493 | -21.40% | |
| Pekin Hardy Strauss, Inc. | 0.04% | 8,230 | $505,816 | $437,836 | -$67,980 | -13.44% | |
| First Trust Advisors Lp | 0.00% | 7,383 | $497,245 | $392,776 | -$104,469 | -21.01% | |
| Lazard Asset Management Llc | 0.00% | 6,999 | $471,383 | $372,347 | -$99,036 | -21.01% | |
| Charles Schwab Investment Management Inc | 0.00% | 5,628 | $379,046 | $299,410 | -$79,636 | -21.01% | |
| Osaic Holdings, Inc. | 0.00% | 5,618 | $378,391 | $298,878 | -$79,513 | -21.01% | |
| Xtx Topco Ltd | 0.00% | 5,490 | $369,752 | $292,068 | -$77,684 | -21.01% | |
| Nuveen, Llc | 0.00% | 5,274 | $355,204 | $280,577 | -$74,627 | -21.01% | |
| Panagora Asset Management Inc | 0.00% | 4,656 | $313,582 | $247,699 | -$65,883 | -21.01% | |
| Bridgeway Capital Management, Llc | 0.01% | 4,608 | $310,349 | $245,146 | -$65,203 | -21.01% | |
| Gc Wealth Management Ria, Llc | 0.01% | 4,961 | $304,903 | $263,925 | -$40,978 | -13.44% | |
| Tidal Investments Llc | 0.00% | 4,154 | $279,772 | $220,993 | -$58,779 | -21.01% | |
| Ubs Group Ag | 0.00% | 4,007 | $269,872 | $213,172 | -$56,700 | -21.01% | |
| Bankchampaign, National Association | 0.22% | 4,216 | $259,115 | $224,291 | -$34,824 | -13.44% | |
| Independent Financial Group, Llc | 0.00% | 3,691 | $226,849 | $196,361 | -$30,488 | -13.44% | |
| Vident Advisory, Llc | 0.00% | 3,191 | $214,914 | $169,761 | -$45,153 | -21.01% | |
| Edgemoor Investment Advisors, Inc. | 0.01% | 3,104 | $209,054 | $165,133 | -$43,921 | -21.01% | |
| Deutsche Bank Ag\ | 0.00% | 2,322 | $156,387 | $123,530 | -$32,857 | -21.01% | |
| Rhumbline Advisers | 0.00% | 1,660 | $111,795 | $88,312 | -$23,483 | -21.01% | |
| New York State Common Retirement Fund | 0.00% | 1,600 | $107,760 | $85,120 | -$22,640 | -21.01% | |
| Copeland Capital Management, Llc | 0.00% | 1,335 | $82,049 | $71,022 | -$11,027 | -13.44% | |
| Adirondack Trust Co | 0.03% | 1,333 | $81,912 | $70,916 | -$10,996 | -13.42% | |
| Citigroup Inc | 0.00% | 1,095 | $73,748 | $58,254 | -$15,494 | -21.01% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.00% | 1,069 | $71,997 | $56,871 | -$15,126 | -21.01% |
Frequently asked questions about ESP
Who are the largest institutional holders of ESP?
The largest institutional holders of ESP reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, Renaissance Technologies LLC, Dimensional Fund Advisors Lp, and American Century Companies Inc. InsiderSet ranks institutional holders by their latest reported ESP position.
What is ESP institutional ownership?
This page tracks ESP positions reported by institutional investment managers through SEC Form 13F. ESPEY MFG & ELECTRONICS CORP (ESP) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ESP?
InsiderSet currently tracks 79 institutional managers reporting ESP holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ESP shareholders.
How much ESP stock do institutions own?
Institutional investment managers disclosed approximately $70.65M in ESP holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ESP institutional ownership last updated?
The latest ESP institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ESP holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ESP position after the reporting date.
Are institutions buying or selling ESP?
Institutional buying and selling can be analyzed by comparing ESP positions across consecutive 13F reporting periods. InsiderSet's ESP Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ESP ownership changes.
How has ESP institutional ownership changed over time?
InsiderSet tracks ESP institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.