RF INDS LTD RFIL
COM PAR $0.01 · Common Stock · CUSIP 749552105
- SectorTechnology
- IndustryElectronic Connectors
- HeadquartersSan Diego, CA
- 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. Holder counts are more reliable. Shares outstanding: 10.8m as of 2026-03-16, 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 ≈ $10.33. Options: 4 managers hold calls ($308.3k notional), 3 hold puts ($308.3k).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 27 |
| Q4 2022 | 29 |
| Q1 2023 | 27 |
| Q2 2023 | 28 |
| Q3 2023 | 29 |
| Q4 2023 | 26 |
| Q1 2024 | 27 |
| Q2 2024 | 32 |
| Q3 2024 | 28 |
| Q4 2024 | 29 |
| Q1 2025 | 32 |
| Q2 2025 | 36 |
| Q3 2025 | 51 |
| Q4 2025 | 52 |
| Q1 2026 | 67 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 14 | 6 |
| Q3 2024 | 5 | 12 |
| Q4 2024 | 9 | 9 |
| Q1 2025 | 13 | 10 |
| Q2 2025 | 16 | 8 |
| Q3 2025 | 36 | 12 |
| Q4 2025 | 27 | 21 |
| Q1 2026 | 42 | 24 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $181.8k | $83.5k | 0.46 |
| Q3 2025 | $604.1k | $189.3k | 0.31 |
| Q4 2025 | $271.1k | $0 | 0.00 |
| Q1 2026 | $308.3k | $308.3k | 1.00 |
Biggest buyers
| MACKENZIE FINANCIAL CORP | New | +90.0k |
| MARSHALL WACE, LLP | Added | +84.2k |
| WELLS FARGO & COMPANY/MN | Added | +75.2k |
| Walleye Capital LLC | New | +70.9k |
| Trexquant Investment LP | Added | +65.8k |
| JANE STREET GROUP, LLC | Added | +61.9k |
| SEI INVESTMENTS CO | Added | +60.5k |
| Timothy G. Youngquist 2020 Irrevocable Trust | New | +60.0k |
| Centiva Capital, LP | Added | +53.3k |
| TWO SIGMA INVESTMENTS, LP | Added | +42.4k |
Biggest sellers
| CITADEL ADVISORS LLC | Sold out | -67.8k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Reduced | -60.9k |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | Reduced | -54.4k |
| Quadrature Capital Ltd | Sold out | -32.9k |
| RITHOLTZ WEALTH MANAGEMENT | Reduced | -24.9k |
| Jump Financial, LLC | Sold out | -15.0k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -14.7k |
| TWO SIGMA ADVISERS, LP | Sold out | -14.3k |
| Heron Bay Capital Management | Sold out | -13.1k |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -11.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $171.1k16.6k shares |
| CITADEL ADVISORS LLC | Reduced | $119.6k11.6k shares |
| SIMPLEX TRADING, LLC | Added | $15.5k1.5k shares |
| GROUP ONE TRADING LLC | Reduced | $2.1k200 shares |
Biggest puts
| CITADEL ADVISORS LLC | New | $183.5k17.8k shares |
| SIMPLEX TRADING, LLC | New | $123.7k12.0k shares |
| GROUP ONE TRADING LLC | New | $1.0k100 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 |
|---|---|
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 13G · institution -2.2 pts · filed 2026-08-14 | 5.4% |
| BlackRock, Inc. 13G · institution new · filed 2026-07-29 | 5.4% |
Fell to 5% or below in the last year: RENAISSANCE TECHNOLOGIES LLC (4.8%, 2025-11-13)
Insider purchases and sales in Q1 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 |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 1 | $20.5k | 0 | — | — |
| Q4 2024 | 1 | $139.2k | 0 | — | — |
| Q1 2025 | 1 | $70.8k | 0 | — | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. 0.49% of their portfolio | 822.8k $8.5m | Reduced -54.4k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 494.7k $5.1m | Reduced -11.9k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 352.2k $3.6m | First filing |
| MARSHALL WACE, LLP 0.00% of their portfolio | 301.5k $3.1m | Added +84.2k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 227.0k $2.3m | Reduced -14.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 190.7k $2.0m | Reduced -9.9k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 151.6k $1.6m | Reduced -60.9k |
| BlackRock, Inc. 0.00% of their portfolio | 150.0k $1.5m | Added +19.8k |
| RITHOLTZ WEALTH MANAGEMENT 0.02% of their portfolio | 129.0k $1.3m | Reduced -24.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 107.7k $1.1m | Added +4.6k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 94.7k $976.7k | Added +42.4k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 90.0k $928.1k | New |
| Trexquant Investment LP 0.01% of their portfolio | 87.9k $906.4k | Added +65.8k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 86.7k $893.8k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 85.6k $882.1k | Added +61.9k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 84.0k $866.3k | Added +60.5k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 77.7k $799.0k | Added +20.8k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 75.2k $775.6k | Added +75.2k |
| Walleye Capital LLC 0.00% of their portfolio | 70.9k $731.4k | New |
| Centiva Capital, LP 0.03% of their portfolio | 70.0k $721.6k | Added +53.3k |
| Informed Momentum Co LLC 0.08% of their portfolio | 66.9k $689.9k | Added +34.5k |
| Timothy G. Youngquist 2020 Irrevocable Trust 0.30% of their portfolio | 60.0k $618.5k | New |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 55.3k $570.5k | First filing |
| Man Group plc 0.00% of their portfolio | 45.3k $467.1k | Added +18.7k |
| STATE STREET CORP 0.00% of their portfolio | 45.0k $463.8k | Added +6.5k |
| GSA CAPITAL PARTNERS LLP 0.03% of their portfolio | 43.1k $444.0k | Added +20.2k |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 43.0k $443.8k | Added +31.3k |
| Hillsdale Investment Management Inc. 0.01% of their portfolio | 41.0k $422.8k | Reduced -9.0k |
| LPL Financial LLC 0.00% of their portfolio | 35.3k $363.6k | New |
| BAILARD, INC. 0.01% of their portfolio | 33.5k $345.6k | Reduced -3.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 28.4k $292.4k | Reduced -2.1k |
| Integrated Quantitative Investments LLC 0.04% of their portfolio | 23.9k $245.9k | New |
| XTX Topco Ltd 0.00% of their portfolio | 23.2k $239.2k | Reduced -2.0k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.02% of their portfolio | 22.3k $323.6k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 20.6k $212.7k | Added +17.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 18.5k $190.8k | Reduced -9.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 18.1k $186.7k | Added +1.7k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.03% of their portfolio | 17.9k $184.5k | Reduced -6.7k |
| Engineers Gate Manager LP 0.00% of their portfolio | 16.6k $170.6k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 15.0k $154.4k | New |
| UBS Group AG 0.00% of their portfolio | 14.7k $151.6k | Added +13.8k |
| MORGAN STANLEY 0.00% of their portfolio | 14.2k $146.0k | Added +10.9k |
| MANGROVE PARTNERS IM, LLC 0.01% of their portfolio | 12.9k $132.9k | New |
| OMERS ADMINISTRATION Corp 0.00% of their portfolio | 12.7k $130.9k | New |
| HRT FINANCIAL LP 0.00% of their portfolio | 11.9k $122.0k | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 11.4k $117.6k | Reduced -2.0k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 11.3k $116.5k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 11.2k $109.3k | New |
| AXQ CAPITAL, LP 0.01% of their portfolio | 10.7k $109.9k | New |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 6.1k $63.1k | New |
| NewEdge Advisors, LLC 0.00% of their portfolio | 5.0k $51.5k | Reduced -9.6k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 4.8k $49.5k | First filing |
| TD Waterhouse Canada Inc. 0.00% of their portfolio | 3.5k $37.1k | Unchanged |
| Founders Capital Management 0.02% of their portfolio | 3.4k $35.3k | Added +1.6k |
| Indiana Trust & Investment Management Co 0.01% of their portfolio | 1.7k $17.3k | Unchanged |
| Federation des caisses Desjardins du Quebec 0.00% of their portfolio | 1.4k $13.9k | Unchanged |
| North Star Investment Management Corp. 0.00% of their portfolio | 1.3k $13.7k | Unchanged |
| IFP Advisors, Inc 0.00% of their portfolio | 1.1k $11.4k | New |
| Destiny Wealth Partners, LLC 0.00% of their portfolio | 1.0k $10.5k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.0k $10.3k | Added +800 |
| BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC 0.00% of their portfolio | 841 $8.7k | New |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 422 $4.4k | Reduced -2.0k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 214 $2.2k | Reduced -43 |
| FMR LLC 0.00% of their portfolio | 179 $1.8k | Reduced -621 |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 86 $1.0k | Added +80 |
| Arax Advisory Partners 0.00% of their portfolio | 42 $434 | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 9 $93 | New |