13F-HR 1 w58402ae13fvhr.txt 13F-HR UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for Calendar Year or Quarter Ended: March 31, 2008 Check here if Amendment [ ]; Amendment Number: _____ This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: BB Biotech AG Address: Vordergasse 3 Schaffhausen Switzerland CH-8200 Form 13F File Number: 28-6964 The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Adrian Bruengger Title: SIGNING AUTHORITY Phone: 41 (44) 267 67 00 Signature, Place, and Date of Signing: /s/ Adrian Bruengger ----------------------------------------- Schaffhausen, Switzerland, May 13, 2008 Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) 1 Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 3 Form 13F Information Table Entry Total: 15 Form 13F Information Table Value Total: $1,318,921 (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. No. Form 13F File Number Name 1 28-11193 Biotech Focus N.V. 2 28-11191 Biotech Invest N.V. 3 28-11189 Biotech Target N.V. 2 BB BIOTECH AG FORM 13F INFORMATION TABLE
COLUMN 8 COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 --------------------- ---------------------------- -------- -------- -------- ------------------ ---------- -------- VOTING AUTHORITY TITLE OF VALUE SHS OR SH/ PUT/ INVESTMENT OTHER --------------------- NAME OF ISSUER CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ---------------------------- -------- --------- -------- --------- --- ---- ---------- -------- --------- ------ ---- Affymetrix Inc COM 00826T108 34,820 2,000,000 SH DEFINED 1 2,000,000 NONE NONE Arena Pharmaceuticals Inc COM 040047102 6,840 1,000,000 SH DEFINED 3 1,000,000 NONE NONE Biogen Idec Inc COM 09062X103 65,412 1,060,335 SH DEFINED 1 1,060,335 NONE NONE Celgene Corp COM 151020104 311,325 5,079,539 SH DEFINED 2 5,079,539 NONE NONE Elan Corp ADR 284131208 75,326 3,611,021 SH DEFINED 2 3,611,021 NONE NONE Genentech Inc COM NEW 368710406 259,170 3,192,536 SH DEFINED 1 3,192,536 NONE NONE Genentech Inc COM NEW 368710406 81,180 1,000,000 SH CALL DEFINED 1 Gilead Sciences Inc COM 375558103 283,529 5,502,218 SH DEFINED 1 5,502,218 NONE NONE Incyte Corp COM 45337C102 9,955 947,166 SH DEFINED 3 947,166 NONE NONE Keryx Biopharmaceuticals Inc COM 492515101 563 939,311 SH DEFINED 3 939,311 NONE NONE Medicines Co COM 584688105 20,545 1,017,100 SH DEFINED 3 1,017,100 NONE NONE Optimer Pharmaceuticals Inc COM 68401H104 4,333 700,000 SH DEFINED 3 700,000 NONE NONE Rigel Pharmaceuticals Inc COM NEW 766559603 6,904 370,000 SH DEFINED 3 370,000 NONE NONE Vertex Pharmaceuticals Inc COM 92532F100 119,450 5,000,000 SH DEFINED 3 5,000,000 NONE NONE Zymogenetics Inc COM 98985T109 38,939 3,973,346 SH DEFINED 3 3,973,346 NONE NONE
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