Figures computed from official regulatory filings — .
Ownershipinsiders 3.76% · institutions 0%
In USD · as of Oct 5, 2026
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Microwave Filter Company, Inc. designs, develops, manufactures, and sells electronic filters for radio and microwave frequencies in New York. The company manufactures radio frequency filters and related components for eliminating interference and facilitating signal processing for cable television, broadcast, commercial and military communications, avionics, radar, navigation, and defense markets. It also designs waveguide, stripline/microstrip, transmission line, miniature/subminiature, and lumped constant filters. In addition, the company offers bandpass, highpass, lowpass, bandstop, multiplexer, tunable notch, tunable bandpass, amplitude equalized, delay equalized, and filter networks. Further, it provides broadcast and bullet trap CATV products, couplers, mask filters for UHF repack, microwave components, power divider RF and microwave products, SatCom filters, and wireless filters. The company was incorporated in 1967 and is based in East Syracuse, New York.
Market information source · Oct 5, 2026
SEC company identity · Oct 5, 2026
Open-market timeline · full history
12 buys53 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Kennedy John Joseph JR | Award | $480 | SEC | ||
| Award |
| $2.8K |
| SEC |
| Fahrenkrug Carl | Award | $5K | Unusual size | SEC |
| Fahrenkrug Carl | Award | $123 | SEC |
| Fahrenkrug Carl | Award | $293 | SEC |
| Fahrenkrug Carl | Award | $294.7 | SEC |
| Fahrenkrug Carl | Award | $266.4 | SEC |
| Fahrenkrug Carl | Award | $65 | SEC |
| CHONG SIDNEY | Other | $1.2K | SEC |
| CHONG SIDNEY | Other | $700 | SEC |
| Fahrenkrug Carl | Award | $222.3 | SEC |
| Fahrenkrug Carl | Award | $2.4K | SEC |
| Fahrenkrug Carl | Award | $1.2K | SEC |
| Fahrenkrug Carl | Buy | $1.2K | conv 73First in 12mo | SEC |
| Mears Paul W | Buy | $600 | conv 53First in 12mo | SEC |
| Fahrenkrug Carl | Buy | $1.6K | conv 44First in 12mo | SEC |
| CHONG SIDNEY | Buy | $900 | conv 89ClusterFirst in 12mo | SEC |
| ANDREWS ROBERT R | Buy | $389.7 | conv 76ClusterFirst in 12mo | SEC |
| Essig Robert Daniel | Buy | $450 | conv 75ClusterFirst in 12mo | SEC |
| TARSIER NANOCAP VALUE FUND, LPtrack record | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| TARSIER NANOCAP VALUE FUND, LPtrack record | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| TARSIER NANOCAP VALUE FUND, LPtrack record | Other | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kennedy John Joseph JR | Buy | $510 | conv 68First in 12mo | SEC |
| CHONG SIDNEY | Buy | $631.8 | conv 73First in 12mo | SEC |
| Kennedy John Joseph JR | Buy | $325 | conv 36First in 12mo | SEC |