FREQUENCY ELECTRS INC FEIM
COM · Common Stock · CUSIP 358010106
- SectorTechnology
- IndustryInstruments For Meas & Testing of Electricity & Elec Signals
- HeadquartersMitchel Field, NY
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($265 this quarter). Holder counts are more reliable. Shares outstanding: 9.9m as of 2026-07-15, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $66.25. Options: 5 managers hold calls ($11.9m notional), 4 hold puts ($2.6m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 27 |
| Q4 2022 | 27 |
| Q1 2023 | 26 |
| Q2 2023 | 29 |
| Q3 2023 | 29 |
| Q4 2023 | 33 |
| Q1 2024 | 29 |
| Q2 2024 | 32 |
| Q3 2024 | 40 |
| Q4 2024 | 53 |
| Q1 2025 | 56 |
| Q2 2025 | 82 |
| Q3 2025 | 102 |
| Q4 2025 | 122 |
| Q1 2026 | 129 |
| Q2 2026 | 144 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 22 | 14 |
| Q4 2024 | 31 | 16 |
| Q1 2025 | 32 | 17 |
| Q2 2025 | 53 | 31 |
| Q3 2025 | 69 | 36 |
| Q4 2025 | 62 | 58 |
| Q1 2026 | 65 | 62 |
| Q2 2026 | 82 | 55 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $0 | $0 | — |
| Q4 2025 | $743.0k | $0 | 0.00 |
| Q1 2026 | $2.5m | $2.5m | 0.98 |
| Q2 2026 | $11.9m | $2.6m | 0.22 |
Biggest buyers
| Driehaus Capital Management LLC | Added | +214.3k |
| G2 Investment Partners Management LLC | Added | +90.4k |
| Invesco Ltd. | New | +78.3k |
| Premier Fund Managers Ltd | New | +59.4k |
| Penserra Capital Management LLC | Added | +57.4k |
| HRT FINANCIAL LP | New | +54.0k |
| CONGRUENCE CAPITAL, LLC | Added | +48.1k |
| Raiffeisen Bank International AG | Added | +42.0k |
| BlackRock, Inc. | Added | +41.7k |
| JANE STREET GROUP, LLC | Added | +31.0k |
Biggest sellers
| MYDA Advisors LLC | Sold out | -140.0k |
| UBS Group AG | Reduced | -74.0k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -70.4k |
| GOLDMAN SACHS GROUP INC | Reduced | -59.1k |
| SEI INVESTMENTS CO | Reduced | -44.5k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -38.6k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -29.0k |
| Covestor Ltd | Reduced | -26.6k |
| MARSHALL WACE, LLP | Sold out | -24.5k |
| Integrated Wealth Concepts LLC | Reduced | -22.5k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $5.4m81.5k shares |
| PEAK6 LLC | New | $3.3m50.0k shares |
| CITADEL ADVISORS LLC | Added | $2.2m33.4k shares |
| IMC-Chicago, LLC | New | $796.2k12.0k shares |
| SIMPLEX TRADING, LLC | Added | $165.9k2.5k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.8m27.5k shares |
| CITADEL ADVISORS LLC | Reduced | $364.9k5.5k shares |
| IMC-Chicago, LLC | New | $325.1k4.9k shares |
| SIMPLEX TRADING, LLC | Added | $59.7k900 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
Edenbrook Capital, LLC
13D · may seek influence
filed 2026-07-30
Stated purposeOn July 28, 2026, Edenbrook Value Fund, LP, a private fund managed by Edenbrook, and Edenbrook Long Only Value Fund, LP (the "Fund"), as selling stockholders, and the Issuer entered into an underwriting agreement (the "Underwriting Agreement") with Morgan Stanley & Co. LLC, (the "Underwriter"), providing for the offer and sale of 97,826 shares of Common Stock by Edenbrook Value Fund, LP and 554,348 shares of Common Stock by the Fund (the "Offering"), and purchase by the Underwriter of the shares of Common Stock, at a gross price to Edenbrook Value Fund, LP and the Fund of $57.50 per share. The Offering closed on July 30, 2026. The Offering was made pursuant to the Issuer's shelf registration statement on Form S-3 (File No. 333-297549), as supplemented by a preliminary prospectus suppleme… Full filing |
11.3% |
| DRIEHAUS CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-08-14 | 7.2% |
| BlackRock, Inc. 13G · institution new · filed 2026-07-28 | 5.2% |
Fell to 5% or below in the last year: Wax Asset Management, LLC (0.0%, 2026-02-13)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 1 | $58.8k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 1 | $37.5m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-07-28 | EDENBROOK LONG ONLY VALUE FUND, LP +2 Director · See footnotes | Sold | $37.5m652.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Edenbrook Capital, LLC 43.46% of their portfolio | 1.9m $124.3m | Unchanged |
| Driehaus Capital Management LLC 0.27% of their portfolio | 706.2k $46.9m | Added +214.3k |
| BlackRock, Inc. 0.00% of their portfolio | 516.5k $34.3m | Added +41.7k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 291.9k $19.4m | Added +9.5k |
| NEXT CENTURY GROWTH INVESTORS LLC 0.81% of their portfolio | 230.7k $15.3m | Added +14.4k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 228.4k $15.1m | Reduced -29.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 205.6k $13.6m | Reduced -59.1k |
| SEGALL BRYANT & HAMILL, LLC 0.16% of their portfolio | 204.2k $13.5m | Reduced -7.9k |
| G2 Investment Partners Management LLC 2.45% of their portfolio | 202.7k $13.4m | Added +90.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 178.0k $11.8m | Added +17.7k |
| Portolan Capital Management, LLC 0.38% of their portfolio | 152.8k $10.1m | Added +2.7k |
| STATE STREET CORP 0.00% of their portfolio | 137.5k $9.1m | Added +4.3k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.05% of their portfolio | 126.0k $8.4m | Reduced -6.0k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 116.5k $7.7m | Reduced -38.6k |
| MORGAN STANLEY 0.00% of their portfolio | 115.0k $7.6m | Added +26.6k |
| Penserra Capital Management LLC 0.05% of their portfolio | 100.1k $6.6m | Added +57.4k |
| Apis Capital Advisors, LLC 0.64% of their portfolio | 99.7k $6.6m | Added +13.8k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.77% of their portfolio | 89.0k $5.9m | Reduced -4.0k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 80.7k $5.4m | Added +10.7k |
| Invesco Ltd. 0.00% of their portfolio | 78.3k $5.2m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 71.5k $4.7m | Reduced -17.0k |
| Defiance ETFs, LLC 0.06% of their portfolio | 69.8k $4.6m | Added +27.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 69.0k $4.6m | Added +5.1k |
| CONGRUENCE CAPITAL, LLC 1.15% of their portfolio | 66.1k $4.4m | Added +48.1k |
| Premier Fund Managers Ltd 0.33% of their portfolio | 59.4k $3.7m | New |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 57.2k $3.8m | Added +31.0k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 56.8k $3.7m | Reduced -600 |
| Raiffeisen Bank International AG 0.04% of their portfolio | 54.0k $3.3m | Added +42.0k |
| HRT FINANCIAL LP 0.01% of their portfolio | 54.0k $3.6m | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 49.0k $3.2m | Added +2.6k |
| Janney Montgomery Scott LLC 0.01% of their portfolio | 48.0k $3.2m | Added +2.0k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 47.3k $3.1m | Reduced -44.5k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.06% of their portfolio | 47.2k $3.1m | Added +18.5k |
| UBS Group AG 0.00% of their portfolio | 46.6k $3.1m | Reduced -74.0k |
| Sowell Financial Services LLC 0.10% of their portfolio | 46.3k $3.1m | Reduced -3.7k |
| Round Rock Advisors LLC 0.39% of their portfolio | 46.1k $3.1m | Unchanged |
| Informed Momentum Co LLC 0.27% of their portfolio | 44.9k $3.0m | Reduced -2.1k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 41.4k $2.7m | Added +7.3k |
| CORSAIR CAPITAL MANAGEMENT, L.P. 0.34% of their portfolio | 41.1k $2.7m | Reduced -19.0k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 39.1k $2.6m | Reduced -70.4k |
| Huntleigh Advisors, Inc. 0.36% of their portfolio | 38.9k $2.6m | Added +2.4k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 35.6k $2.4m | Added +1.4k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 32.5k $2.2m | Added +1.2k |
| NAVELLIER & ASSOCIATES INC 0.16% of their portfolio | 30.1k $2.0m | Added +18.6k |
| Legato Capital Management LLC 0.17% of their portfolio | 30.0k $2.0m | Added +896 |
| LPL Financial LLC 0.00% of their portfolio | 25.8k $1.7m | Reduced -7.4k |
| GSA CAPITAL PARTNERS LLP 0.10% of their portfolio | 23.4k $1.6m | Reduced -2.1k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 22.9k $1.5m | Added +1.1k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 21.3k $1.4m | Added +1.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 20.7k $1.4m | Reduced -1.4k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 20.6k $1.4m | Added +9.4k |
| Calamos Advisors LLC 0.00% of their portfolio | 20.2k $1.3m | Added +12.6k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 19.9k $1.3m | Reduced -1.5k |
| Squarepoint Ops LLC 0.00% of their portfolio | 18.9k $1.3m | Added +5.7k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.03% of their portfolio | 18.8k $1.2m | Reduced -634 |
| Nuveen, LLC 0.00% of their portfolio | 15.6k $1.0m | Added +7.1k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 14.2k $943.8k | Added +11.1k |
| Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio | 13.4k $890.6k | New |
| VILLERE ST DENIS J & CO LLC 0.09% of their portfolio | 11.7k $776.0k | Unchanged |
| MORGAN DEMPSEY CAPITAL MANAGEMENT LLC 0.33% of their portfolio | 11.5k $761.9k | Added +570 |
| MOODY NATIONAL BANK TRUST DIVISION 0.06% of their portfolio | 10.6k $702.0k | Unchanged |
| Tidal Investments LLC 0.00% of their portfolio | 9.4k $625.7k | Reduced -164 |
| NEEDHAM INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 9.0k $597.1k | Unchanged |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 8.7k $579.4k | Reduced -22.5k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 8.2k $542.4k | Added +572 |
| THOMPSON DAVIS & CO., INC. 0.32% of their portfolio | 8.2k $540.8k | Reduced -20.5k |
| Ausbil Investment Management Ltd 0.23% of their portfolio | 7.8k $515.5k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 7.7k $509.6k | Added +3.8k |
| XML Financial, LLC 0.04% of their portfolio | 7.5k $497.6k | Added +1.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 7.4k $491.0k | Reduced -1.6k |
| SAPIENT CAPITAL LLC 0.01% of their portfolio | 7.4k $489.7k | Unchanged |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 6.8k $449.9k | Added +1.6k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 6.8k $449.3k | Added +818 |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 6.7k $296.5k | New |
| Steadtrust LLC 0.22% of their portfolio | 6.7k $444.5k | Reduced -300 |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 6.7k $441.9k | Reduced -96 |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 6.6k $439.0k | Reduced -2.9k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.00% of their portfolio | 6.6k $435.3k | Reduced -3.4k |
| IMC-Chicago, LLC 0.00% of their portfolio | 6.1k $401.8k | New |
| RITHOLTZ WEALTH MANAGEMENT 0.01% of their portfolio | 5.9k $393.6k | Reduced -1.0k |
| MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio | 5.7k $375.3k | Added +873 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 5.6k $371.0k | New |
| Diametric Capital, LP 0.04% of their portfolio | 5.5k $362.4k | New |
| WINTON GROUP Ltd 0.01% of their portfolio | 5.4k $361.5k | New |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 5.2k $346.0k | Unchanged |
| Covestor Ltd 0.20% of their portfolio | 5.2k $342.0k | Reduced -26.6k |
| FIRST UNITED BANK & TRUST 0.10% of their portfolio | 5.0k $331.8k | Unchanged |
| Cetera Investment Advisers 0.00% of their portfolio | 4.9k $325.5k | New |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 4.8k $318.8k | Added +150 |
| Teton Advisors, LLC 0.18% of their portfolio | 4.8k $318.5k | Unchanged |
| GILDER GAGNON HOWE & CO LLC 0.00% of their portfolio | 4.5k $301.7k | New |
| Moors & Cabot, Inc. 0.01% of their portfolio | 4.5k $298.6k | Reduced -1.3k |
| DUDLEY CAPITAL MANAGEMENT, LLC 0.12% of their portfolio | 4.5k $298.6k | Reduced -500 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 4.3k $265.5k | Added +1.1k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 4.3k $282.8k | New |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 4.2k $278.7k | Reduced -545 |
| Trexquant Investment LP 0.00% of their portfolio | 4.2k $278.3k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 4.0k $267.4k | Unchanged |
| Vident Advisory, LLC 0.00% of their portfolio | 3.9k $257.0k | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 3.8k $252.1k | New |