Document:

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                       FOURTH AMENDMENT TO LOAN AGREEMENT

         THIS AMENDMENT is made this 30 day of March, 2001, by and between
AMERICAN TECHNICAL CERAMICS CORP. (the "Borrower"), a Delaware corporation, and
BANK OF AMERICA, N.A. (the "Bank"), successor to NationsBank, N.A., successor by
merger to Barnett Bank, N.A.

                                    Recitals

         The Borrower and the Bank entered into a Loan Agreement (as amended
from time to time, the "Loan Agreement") dated November 25, 1998, pursuant to
which the Bank has provided a credit facility to the Borrower. The parties
amended the Loan Agreement on February 4, 1999, April 13, 2000, and October 26,
2000 and the parties wish to further amend the Loan Agreement in accordance with
the terms hereof.

         NOW, THEREFORE, for good and valuable consideration, the parties agree
as follows:

         1.    Section 4.01 of the Loan Agreement is hereby amended so that,
from and after the date hereof, such section shall read as follows:

         4.01  Obligations.

               (a) The Borrower and its consolidated subsidiaries are not and
         will not become directly or indirectly obligated in any way for any
         obligation for borrowed money except for Permitted Obligations. For
         purposes hereof, Permitted Obligations shall mean:

                     (i) any and all obligations shown on the most recent
               financial statements of the Borrower provided by the Borrower to
               the Bank on or before the date hereof;

                     (ii) any and all obligations for borrowed money now or
               hereafter owed by the Borrower or any of its consolidated
               subsidiaries to the Bank;

                     (iii) customer deposits in the ordinary course of business;
               and

                     (iv) other obligations for borrowed money so long as: (aa)
               the aggregate principal amount of such obligations, on a combined
               basis, incurred from and after December 31, 2000, does not exceed
               $10,000,000; and (bb) such obligations are not secured by
               inventory or accounts receivable.

               (b) Neither the Borrower nor any of its consolidated subsidiaries
         shall: (i) guarantee or purchase any obligations of any other person or
         entity; (ii) enter into any credit support, financial maintenance,
         credit enhancement or similar arrangement in favor of any person or
         entity; or (iii) enter into any other transaction which is intended to
         assure performance of the obligations of any other person or entity,
         other than, in the case of

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         each of clause (i), (ii) and (iii), in respect of obligations of or in
         favor of the Borrower, any consolidated subsidiary of the Borrower,
         Victor Insetta or V.P.I. Properties Associates.

         2.    The Loan Agreement shall continue in full force and effect except
as modified herein.

         DATED the day and year first above written.

                                           AMERICAN TECHNICAL CERAMICS CORP.

                                           By:
                                              ---------------------------------
                                              Its:
                                                  -----------------------------

                                           BANK OF AMERICA, N.A.

                                           By:
                                              ---------------------------------
                                              Its:
                                                  -----------------------------

                                       2<PAGE>

                                                                   EXHIBIT 10.22

                               FIRST AMENDMENT TO
                              EMPLOYMENT AGREEMENT

         Amendment, dated March 22, 2001 (the "Amendment"), by and between
Hoenig & Co., Inc., a Delaware corporation (the "Company"), and Max H. Levine
(the "Executive").

         WHEREAS, the Company and the Executive have previously entered into an
Employment Agreement, dated October 8, 1998 (the "Employment Agreement"); and

         WHEREAS, the Company and the Executive desire to amend the Employment
Agreement.

         NOW, THEREFORE, in consideration of the premises and the mutual
agreements made herein, the Company and the Executive hereby agree as follows:

         1. Section 1(c)(2) of the Employment Agreement is hereby deleted in its
entirety and replaced by the following:

         "(2) In the event that an Assigned Account is reassigned to someone
other than Executive pursuant to Section 1(c)(1), such Assigned Account shall
not constitute a Client Account for purposes of determining the Bonus Pool under
Section 3(b) or any payment due Executive under Section 4(d)(2)."

         2. Section 3(b) of the Employment Agreement is hereby deleted in its
entirety and replaced by the following:

         "(b) Annual Bonus. In addition to the Base Salary, for each fiscal year
of the Company that ends during the Employment Period, beginning with the fiscal
year starting January 1, 2001, the Executive shall be entitled to participate in
a bonus pool (the "Bonus Pool"), the only other participant in which shall be
Michael Levine (the "Other Pool Participant" and, together with the Executive,
the "Pool Participants"). The Bonus Pool shall equal 30% of the amount of Net
Pre-Tax Profits (as defined in Section 3(b)(1) herein) for such fiscal year,
reduced by the amount of any payments made to the Participants in connection
with a termination of employment during the fiscal year. The percentage of the
Bonus Pool to be paid to the Executive shall be determined by the Compensation
Committee of the Board in its sole discretion for each fiscal year during the
Employment Period (the "Bonus Percentage " and, as applied to the Bonus Pool,
the "Bonus Formula"); provided that the sum of the Bonus Percentages for both
Pool Participants shall at no time be less than 100%. Upon any termination of
employment of the Other Pool Participant during a fiscal year, the Bonus
Percentage of the Executive shall automatically increase to 100% for periods
beginning after such termination of employment. In addition, Executive shall be
entitled to a

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minimum bonus award for each fiscal year that ends during the Employment Period
of $150,000 (the "Minimum Bonus Award"). The Minimum Bonus Award and the Bonus
Formula are collectively referred to herein as the "Bonus Award". To the extent
necessary to avoid the limitation on the federal tax deductibility of the Bonus
Award for any year under Section 162(m) of the Internal Revenue Code of 1986, as
amended, payment thereof may, at the sole discretion of the Company, be either
(i) made pursuant to the Company's Section 162(m) Cash Bonus Plan or such other
comparable plan adopted by the Company, the continued effectiveness of which may
be contingent upon the approval of the Company's stockholders, or (ii) deferred
to the first taxable year of the Company in which the payment would be fully
deductible. Except as provided in the preceding sentence, the Bonus Award for a
fiscal year shall be payable as soon as practicable after the release of the
Company's audited financial statements for such fiscal year, but in no event
later than 90 days after the end of the fiscal year. In the case of a deferral
under Clause (ii) above, amounts deferred shall be credited with such interest
and on such other terms as the Company and the Executive shall mutually agree.

         (1) "Net Pre-Tax Profits shall mean the amount, if any, determined in
accordance with Generally Accepted Accounting Principles ("GAAP") consistently
applied from year to year, by which the total gross equity commission revenues
and underwriting designation revenues generated by client brokerage accounts
which the Pool Participants are responsible for servicing, except for those
accounts specified by the parties hereto, including the Assigned Accounts
(collectively, "Client Accounts"), exceed all expenses incurred in generating
such revenues, servicing those Client Accounts and in the operation and conduct
of the Pool Participants' businesses. Such expenses include, but are not limited
to: the Base Salary paid to Executive and any base salary paid to the Other Pool
Participant, including, in each case, related payroll taxes, the Minimum Bonus
Award payable to Executive, insurance and other benefits relating to either of
the Pool Participants, including any profit-sharing contributions made on behalf
of either of the Pool Participants, any benefits provided to Executive pursuant
to Section 3(c) and any similar benefits provided to the Other Pool Participant;
the cost of research and other services provided to Client Accounts; telephones;
market data and quotation equipment and services; electronic and other office
equipment; business travel and entertainment; clearance and settlement costs on
transactions executed for Client Accounts, determined in accordance with the
Company's practices; registration fees and expenses; and exchange and
association membership dues and subscriptions."

         3. Section 4(d)(2) of the Employment Agreement is hereby deleted in its
entirety and replaced by the following:

         "a payment equal to (i) the Minimum Bonus Award multiplied by a
fraction, the numerator of which shall be the number of days elapsed in the
fiscal year to the date of such termination and the denominator of which shall
be 365, and (ii) the Bonus Formula calculated as if the fiscal year of the
Company ended on the date of such termination."

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         4. Capitalized terms used herein and not otherwise defined shall have
the same meanings given them in the Employment Agreement.

         5. Except as expressly modified herein, the Employment Agreement shall
remain in full force and effect in accordance with its terms.

         IN WITNESS WHEREOF, the parties have executed this Amendment on the day
and year first above written.

                                       HOENIG & CO., INC.

                                       By: /s/ Fredric P. Sapirstein
                                          --------------------------------------

                                       Title:  CEO
                                             -----------------------------------

     /s/  Max H. Levine
-----------------------------------
          MAX H. LEVINE

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