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
National Patent Development, Corporation
9 West 57 Street - Suite 4170
New York, NY 10019
2. Issuer Name and Ticker or Trading Symbol
GTS Duratek, Inc.
(DRTK)
3. IRS or Social Security Number of Reporting Person (Voluntary)
13-1926739
4. Statement for Month/Year
9/3/97
5. If Amendment, Date of Original (Month/Year)
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
( ) Director (X) 10% Owner ( ) Officer (give title below) ( ) Other
(specify below)
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 |9/03/9|S | |2,000 |D |$10.375 | | | |
|7 | | | | | | | | |
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|9/04/9|S | |2,000 |D |$10.375 | | | |
|7 | | | | | | | | |
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|9/05/9|S | |2,000 |D |$10.375 | | | |
|7 | | | | | | | | |
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|9/08/9|S | |4,000 |D |$10.906 | | | |
|7 | | | | | | | | |
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|9/09/9|S | |4,000 |D |$11.656 | | | |
|7 | | | | | | | | |
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|9/10/9|S | |8,000 |D |$13.265 | | | |
|7 | | | | | | | | |
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|9/10/9|T | |20,000 |D |$1.90 | | | |
|7 | | | | | | | | |
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|9/11/9|S | |2,000 |D |$12.875 | | | |
|7 | | | | | | | | |
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|9/15/9|S | |2,000 |D |$13.500 | | | |
|7 | | | | | | | | |
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|9/17/9|S | |2,000 |D |$13.125 | | | |
|7 | | | | | | | | |
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|9/18/9|S | |6,000 |D |$13.541 | | | |
|7 | | | | | | | | |
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|9/19/9|S | |6,000 |D |$14.125 | | | |
|7 | | | | | | | | |
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|9/22/9|T | |7,500 |D |$1.90 | | | |
|7 | | | | | | | | |
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|9/22/9|S | |6,000 |D |$14.791 | | | |
|7 | | | | | | | | |
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|9/23/9|S | |2,000 |D |$14.750 | | | |
|7 | | | | | | | | |
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|9/23/9|T | |4,000 |D |$1.90 | | | |
|7 | | | | | | | | |
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|9/24/9|S | |2,000 |D |$14.813 | | | |
|7 | | | | | | | | |
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|9/25/9|S | |4,000 |D |$14.813 | | | |
|7 | | | | | | | | |
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|9/25/9|T | |1,750 |D |$1.90 | | | |
|7 | | | | | | | | |
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|9/29/9|T | |2,000 |D |$1.90 | | | |
|7 | | | | | | | | |
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|9/30/9|T | |6,000 |D |$1.90 |1,640,222 |D | |
|7 | | | | | | | | |
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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>
Employee Stock Option |$1.90 |9/10/|X | |20,000 |D | | |Common Stock|20,000 |$1.90 | | | |
(Obligation to Sell) | |97 | | | | | | | | | | | | |
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|$1.90 |9/22/|X | |7,500 |D | | |Common Stock|7,500 |$1.90 | | | |
| |97 | | | | | | | | | | | | |
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|$1.90 |9/23/|X | |4,000 |D | | |Common Stock|4,000 |$1.90 | | | |
| |97 | | | | | | | | | | | | |
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|$1.90 |9/25/|X | |1,750 |D | | |Common Stock|1,750 |$1.90 | | | |
| |97 | | | | | | | | | | | | |
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|$1.90 |9/29/|X | |2,000 |D | | |Common Stock|2,000 |$1.90 | | | |
| |97 | | | | | | | | | | | | |
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|$1.90 |9/30/|X | |6,000 |D | | |Common Stock|6,000 |$1.90 |182,000 |D | |
| |97 | | | | | | | | | | | | |
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| | | | | | | | | | | | | | |
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</TABLE>
Explanation of Responses:
SIGNATURE OF REPORTING PERSON
Lydia M. DeSantis, Corporate Secretary
DATE
October 10, 1997
