------------------------------ OMB APPROVAL ------------------------------ OMB Number 3235-0362 Expires: September 30, 1998 Estimated average burden hours per response ....... 1.0 ------------------------------ U.S. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 5 ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES 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 [_] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). [_] Form 3 Holdings Reported [_] Form 4 Transactions Reported (Print or Type Responses) ________________________________________________________________________________ 1. Name and Address of Reporting Person* OrbiMed Advisors LLC(1) -------------------------------------------------------------------------------- (Last) (First) (Middle) 767 Third Avenue -------------------------------------------------------------------------------- (Street) New York NY 10010 -------------------------------------------------------------------------------- (City) (State) (Zip) ________________________________________________________________________________ 2. Issuer Name and Ticker or Trading Symbol Orphan Medical, Inc. ________________________________________________________________________________ 3. IRS or Social Security Number of Reporting Person (Voluntary) ________________________________________________________________________________ 4. Statement for Month/Year December, 2001 ________________________________________________________________________________ 5. If Amendment, Date of Original (Month/Year) ________________________________________________________________________________ 6. Relationship of Reporting Persons 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) [_] Form filed by One Reporting Person [X] Form filed by More than One Reporting Person ________________________________________________________________________________ ================================================================================ Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned ================================================================================ 4. 5. 6. Securities Acquired (A) or Amount of Owner- Disposed of (D) Securities ship 3. (Instr. 3, 4 and 5) Beneficially Form: 7. 2. Transaction ----------------------------- Owned at End Direct Nature of 1. Transaction Code of Issuer's (D) or Indirect Title of Security Date (Instr. 8) (A) Fiscal Year Indirect Beneficial (Instr. 3) (mm/dd/yy) ---------- or (Instr. 3 (I) Ownership Code Amount (D) Price and 4) (Instr.4) (Instr. 4) ------------------------------------------------------------------------------------------------------------------------------------ Common Stock 12/07/01 P 337,302 A $8.25 1,602,302 I(2) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. (Over) FORM 5 (continued) Table II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) ================================================================================ 9. 10. Number Owner- of ship 2. Deriv- Form of Conver- 5. 7. ative Deriv- 11. sion Number of Title and Amount Secur- ative Nature or Derivative 6. of Underlying 8. ities Secur- of Exer- Securities Date Securities Price Bene- ity: In- cise 3. Acquired (A) Exercisable and (Instr. 3 and 4) of ficially Direct direct Price Trans- 4. or Disposed Expiration Date ---------------- Deriv- Owned (D) or Bene- 1. of action Trans- of (D) (Month/Day/Year) Amount ative at End In- ficial Title of Deriv- Date action (Instr. 3, ---------------- or Secur- of direct Owner- Derivative ative (Month/ Code 4 and 5) Date Expira- Number ity Year (I) ship Security Secur- Day/ (Instr. ------------ Exer- tion of (Instr. (Instr. (Instr. (Instr. (Instr. 3) ity Year) 8) (A) (D) cisable Date Title Shares 5) 4) 4) 4) ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ ==================================================================================================================================== Explanation of Responses: (1) Joint filing with OrbiMed Advisors Inc. and Samuel D. Isaly (3) of the same address. (2) OrbiMed Advisors LLC, OrbiMed Advisors Inc., and Samuel D. Isaly have investment management discretion over a number of collective investment funds investing in Orphan Medical, Inc. stock. The reporting persons have no beneficial interest in the securities pursuant to Rule 16a-1(2). (3) OrbiMed Advisors Inc. is 100% owned by Samuel D. Isaly who also has a controlling interest in OrbiMed Advisors LLC. Samuel D. Isaly 2/15/02 --------------------------------------------- ----------------------- *Signature of Reporting Person Date * 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 provided is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. Page 2 SEC 2270 (7-96)