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
Ennis, C. Eugene
c/o 3DX Technologies Inc.
12012 Wickchester, Suite 250
Houston, TX 77079-1218
2. Issuer Name and Ticker or Trading Symbol
3DX Technologies Inc.
TDXT
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Statement for Month/Year
August 1997
5. If Amendment, Date of Original (Month/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
(X) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other
(specify below)
President and Chief Executive Officer
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
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Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned |
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1. Title of Security |2. |3. |4.Securities Acquired (A) |5.Amount of |6.Dir |7.Nature of Indirect |
| Transaction | or Disposed of (D) | Securities |ect | Beneficial Ownership |
| | | | Beneficially |(D)or | |
| | | | | A/| | Owned at |Indir | |
| Date |Code|V| Amount | D | Price | End of Month |ect(I)| |
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<S> <C> <C> <C><C> <C> <C> <C> <C> <C>
Common Stock, par value $.0|08/20/|P | |10,000 |A |$8.625 |269,267* |D | |
1 per share |97 | | | | | | | | |
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Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned |
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1.Title of Derivative |2.Con- |3. |4. |5.Number of De |6.Date Exer|7.Title and Amount |8.Price|9.Number |10.|11.Nature of|
Security |version |Transaction | rivative Secu |cisable and| of Underlying |of Deri|of Deriva |Dir|Indirect |
|or Exer | | | rities Acqui |Expiration | Securities |vative |tive |ect|Beneficial |
|cise | | | red(A) or Dis |Date(Month/| |Secu |Securities |(D)|Ownership |
|Price of| | | posed of(D) |Day/Year) | |rity |Benefi |or | |
|Deriva- | | | |Date |Expir| | |ficially |Ind| |
|tive | | | | A/|Exer-|ation| Title and Number | |Owned at |ire| |
|Secu- | | | | | D |cisa-|Date | of Shares | |End of |ct | |
|rity |Date |Code|V| Amount | |ble | | | |Month |(I)| |
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<S> <C> <C> <C> <C><C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
Stock Option (Right to|n/a |01/04| | | | |** |01/04|Common Stock|20,144 |$0.19 |20,144 |D | |
Buy) | |/94 | | | | | |/04 | | | | | | |
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Stock Option (Right to|n/a |07/23|A |V|100,000 |A |*** |07/23|Common Stock|100,000|$11.00 |100,000 |D | |
Buy) | |/97 | | | | | |/07 | | | | | | |
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Explanation of Responses:
* Subsequent to the date of the reporting person's most recent previous
ownership statement, the reporting person
transferred 226,351 shares of the Issuer's Common Stock to the reporting
person's former wife pursuant to a
domestic relations order. Additionally, no fractional shares of Common Stock
were issued in connection with either
the conversion of the previously outstanding shares of the Issuer's Senior
Redeemable Convertible Preferred Stock,
Series C, par value $.01 per share (the "Series C Preferred") or the exercise
of warrants to purchase Series C
Preferred. As a result, the reporting person's most recent previous ownership
report reflected ownership of six
(6) shares of Common Stock never issued to the reporting
person.
** On January 4, 1994, the reporting person was granted an option to purchase
20,144 shares of Common Stock
(as adjusted for the .517-to-1 reverse stock split occuring in connection with
the Issuer's initial public offering of
Common Stock), pursuant to the Issuer's 1994 Stock Option Plan, as amended. As
of August 31, 1997, 18,045
shares subject to the option had vested. The remaining shares will vest at the
rate of 2.084% of the aggregate
number of shares subject to the option at the end of each of the next
succeeding five months.
*** On July 23, 2997, the reporting person was granted an option to purchase
100,000 shares of Common Stock
pursuant to the Issuer's 1994 Stock Option Plan, as amended. The shares
subject to the option will vest at the rate
of 25% of the aggregate number of shares subject to the option on each of the
first and second anniversary of the
date of the option grant and thereafter the shares subject to the option will
vest monthly at the rate of 2.084% at the
end of each of the next succeeding 24
months.
SIGNATURE OF REPORTING PERSON
/s/ C. Eugene Ennis
DATE
September 10, 1997
