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FORM 4 OMB APPROVAL
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----- Check this box if no longer OMB Number: 3235-0287
subject to Section 16. Form 4
----- or Form 5 obligations may Estimated average burden
continue. SEE Instruction 1(b). hours per response .... 0.5
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934,
Section 17(a) of the Public Utility Holding Company Act of 1935 or
Section 30(f) of the Investment Company Act of 1940
(Print or Type Responses)
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1. Name and Address of Reporting Person*
Cooper Hill Partners, L.P.
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(Last) (First) (Middle)
230 Park Avenue
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(Street)
New York, NY 10169
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(City) (State) (Zip)
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2. Issuer Name and Ticker or Trading Symbol
DUSA Pharmaceuticals Inc. DUSA
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3. IRS or Social Security Number of Reporting Person (Voluntary)
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4. Statement for Month/Year
5/01
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5. If Amendment, Date of Original (Month/Year)
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6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
[ ] Director
[X] 10% Owner
[ ] Officer (give title below)
[ ] Other (specify below)
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7. Individual or Joint/Group Filing (Check Applicable Line)
[ ] Form filed by One Reporting Person
[X] 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.Trans- 3. Trans- 4. Securities Acquired (A)
(Instr. 3) action action or Disposed of (D)
Date Code (Instr. 3, 4 and 5)
(Month/ (Instr. 8) --------------------------
Day/ ----------- Amount (A) or Price
Year) Code V (D)
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Common Stock,
par value $.01 per share 4/4/01 P 74,000 (A) $11.3125
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Common Stock,
par value $.01 per share 5/16/01 P 9,600 (A) $13.52
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Common Stock,
par value $.01 per share 5/29/01 P 18,900 (A) $12.10
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Common Stock,
par value $.01 per share 6/4/01 P 4,600 (A) $11.70
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5. Amount of 6. Ownership 7. Nature of
Securities Form: Direct Indirect
Beneficially (D) or Indirect Beneficial
Owned at End (I) (Instr. 4) Ownership
of Month (Instr. 4)
(Instr. 3
and 4)
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399,500 (I) See Explanation of Responses
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Reminder: Report on a separate line for each class of securities
beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, SEE Instruction
4(b)(v).
(Over)
SEC 1474 (7-96)
Page 1 of 2
FORM 4 (continued)
TABLE II - DERIVATIVE SECURITIES ACQUIRED, DISPOSED OF, OR BENEFICIALLY OWNED
(E.G., PUTS, CALLS, WARRANTS, OPTIONS, CONVERTIBLE SECURITIES)
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1. Title of Derivative 2. Conver- 3. Transac- 4. Transac- 5. Number of
Security (Instr. 3) sion or tion Date tion Code Derivative
Exercise (Month/ (Instr. 8) Securities
Price of Day/ ------------ Acquired (A)
Deriv- Year) Code V or Disposed
ative of (D)(Instr.
Security 3, 4, and 5)
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(A) (D)
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6. Date Exer- 7. Title and Amount 8. Price of 9. Number of
cisable and Ex- of Underlying Derivative Derivative
piration Date Securities Security Securities
(Month/Day/ (Instr. 3 and 4) (Instr. 5) Beneficially
Year) ------------------- Owned at
------------------ Amount or End of Month
Date Expira- Title Number of (Instr. 4)
Exer- tion Shares
cisable Date
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10. Ownership 11. Nature of
Form of Indirect
Derivative Beneficial
Security: Ownership
Direct (D) or (Instr. 4)
Indirect (I)
(Instr. 4)
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Explanation of Responses
Pursuant to an investment advisory contract, Cooper Hill Partners, L.P.
currently has the power to vote and dispose of the securities held for the
account of CLSP Overseas, Ltd. and, accordingly, may be deemed the "beneficial
owner" of such securities. Mr. Casdin is the managing member of Casdin Capital,
LLC, the general partner of Cooper Hill Partners, L.P.
**Intentional misstatements or omissions of facts constitute Federal
Criminal Violations. SEE 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this form, one of which must be manually signed.
If space is insufficient, SEE Instruction 6 for procedure.
/s/ Jeffrey Casdin 6/27/01
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By: Jeffrey Casdin Date
For Casdin Capital, LLC,
General Partner of Cooper Hill
Partners,L.P., Investment Manager
of CSLP Overseas, Ltd.,
and Individually
**Signature of Reporting Person
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