UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
Ronald G. Coss
1401 Walnut Street, Suite 540
Boulder, Colorado 80302
2. Issuer Name and Ticker or Trading Symbol
Pro-Dex, Inc./ PDEX
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
December/1998
5. If Amendment, Date of Original (Month/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
(X) Director (X) 10% Owner (X) Officer (give title below)
( ) Other (specify below) Vice Chairman
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
______________________________________________________________________________
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
______________________________________________________________________________
1.Title of Security |2.Trans-|3.Trans-|4.Securities Acquired (A) |5.Amount of
(Instruction 3) |action |action |or Disposed of (D) |Securities
|Date |Code |(Instr. 3, 4, and 5) |Beneficially
| |(Instr. | |Owned at
|(Month/ | 8) | |End of Month
| Day/ |________|___________________________|(Instr.
| Year) |Code| V | Amount |(A)or(D)| Price | 3 & 4)
_____________________|________|____|___|________|________|_________|____________
Pro-Dex Common Stock |12/28/98| G | | 18,000 | D | |2,477,528
_____________________|________|____|___|________|________|_________|____________
| | | | | | |
_____________________|________|____|___|________|________|_________|____________
____________________________________________________________
6.Ownership Form: |7.Nature of
Direct (D) or | Indirect Beneficial
Indirect (I) | Ownership
(Instr. 4) | (Instr. 4)
____________________|_______________________________________
584,377 | By ESOP
____________________|_______________________________________
|
____________________|_______________________________________
________________________________________________________________________________
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securites)
________________________________________________________________________________
1.Title of Derivative|2.Con- |3.Trans-|4.Trans-|5.Number of|6.Date |7.Title
Security (Instr. 3) |version |action |action |Derivative |Exer- |and
|or Exer-|Date |Code |Securities |cisable |amount of
|cise |(Month/ |(Instr. |Acquired(A)|and Ex- |Underlying
|Price of| Day/ | 8) |or Disposed|piration|Securities
|Deriva- | Year) | |of (D) |Date |(Instr.
|tive | | |(Instr. 3, |(Month/ | 4)
|Security| | | 4, and 5) | Day/ |
| | |________|___________| Year) |
| | |Code| V | (A) | (D) | |
_____________________|________|________|____|___|_____|_____|________|__________
| | | | | | | |
_____________________|________|________|____|___|_____|_____|________|__________
| | | | | | | |
_____________________|________|________|____|___|_____|_____|________|__________
_______________________________________________________
8.Price of |9.Number of |10.Ownership Form |11.Nature of
Derivative |Derivative |of Derivative |Indirect
Security |Securities, |Security: |Beneficial
(Instr. 5) |Beneficially |Direct (D) or |Ownership
|Owned at End |Indirect (I) |(Instr. 4)
|of Month |(Instr. 4) |
|(Instr. 4) | |
___________|_____________|__________________|_____________
| | |
___________|_____________|__________________|_____________
| | |
___________|_____________|__________________|_____________
Explanation of Responses:
SIGNATURE OR REPORTING PERSON
/s/ Ronald G. Coss
February 3, 1999
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