-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, TbkpkoqK0rUX4a/f4dttHUnEcsQgtRvcb9zocsyliri9bx3cLJQG6K/4tLx4xJ2j dEyIBdd4mNueoMjP8vT76w== 0001140361-09-012294.txt : 20090515 0001140361-09-012294.hdr.sgml : 20090515 20090514175224 ACCESSION NUMBER: 0001140361-09-012294 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20090331 FILED AS OF DATE: 20090515 DATE AS OF CHANGE: 20090514 EFFECTIVENESS DATE: 20090515 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Palo Alto Investors, LLC CENTRAL INDEX KEY: 0001306923 IRS NUMBER: 770558164 STATE OF INCORPORATION: CA FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-11013 FILM NUMBER: 09828071 BUSINESS ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 BUSINESS PHONE: 650-325-0772 MAIL ADDRESS: STREET 1: 470 UNIVERSITY AVE CITY: PALO ALTO STATE: CA ZIP: 94301 13F-HR 1 form13f.txt PALO ALTO INVESTORS 13F-HR 3-31-2009 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: 3/31/2009 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: Palo Alto Investors, LLC ----------------------------------------------------- Address: 470 University Avenue Palo Alto, CA 94301 ----------------------------------------------------- Form 13F File Number: 28-10266 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: /s/ Mark Shamia ------------------------- Title: Chief Operating Officer ------------------------- Phone: (650) 325-0772 ------------------------- Signature, Place, and Date of Signing: /s/ Mark Shamia Palo Alto, CA 5/14/2009 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).) List of Other Managers Reporting for this Manager: Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13F Information Table Entry Total: 64 Form 13F Information Table Value Total: $712,178.00 List of Other Included Managers: Provide a numbered list of the name(s) and 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.
FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE - ------------------------------------- ----------------- --------- -------- ---------- --- ---- ------- -------- -------- ------ ---- Airvana Inc. COM 00950v101 4612 788343 788343 0 0 Akamai Technologies Inc. COM 00971T101 6938 357649 357649 0 0 Allergan Inc COM 018490102 4606 96440 96440 0 0 AMAG Pharmaceuticals Inc. COM 00163u106 32132 873854 873854 0 0 Amazon.com Inc. COM 023135106 8299 113000 113000 0 0 Amicus Therapeutics Inc. COM 03152W109 27377 2998529 2998529 0 0 Arena Resources COM 040049108 19747 775000 775000 0 0 Auxilium Pharmaceuticals Inc. COM 05334D107 65067 2347286 2347286 0 0 Biogen IDEC Inc. COM 09062X103 15170 289387 289387 0 0 Biomarin Pharmaceuticals Inc COM 09061G101 13961 1130408 1130408 0 0 Biomimetic Therapeutics Inc. COM 09064X101 3218 453308 453308 0 0 BPZ Energy usus 055639108 5679 1805602 1805602 0 0 BroadVision Inc. COM 111412607 9262 743945 743945 0 0 Cache Inc COM 127150308 2601 903278 903278 0 0 Canadian Superior Energy Inc. COM 136644101 7024 15002500 15002500 0 0 Celgene Corp COM 151020104 4274 96268 96268 0 0 Ceragon Networks Ltd. COM M22013102 7977 1877000 1877000 0 0 Chevron Corp COM 166764100 10086 150000 150000 0 0 Cogo Group Inc. COM 192448108 2505 375000 375000 0 0 Compellent Technologies COM 20452A108 1486 137000 137000 0 0 Cubist Pharma COM 229678107 13103 800931 800931 0 0 Cyberonics Inc. COM 23251P102 51514 3881990 3881990 0 0 Cytokinetics COM 23282W100 572 336320 336320 0 0 Data Domain COM 23767P109 5411 430500 430500 0 0 Demandtec COM 24802R506 139 15900 15900 0 0 Dyax COM 26746E103 108 43100 43100 0 0 ev3 Inc COM 26928A200 13937 1963000 1963000 0 0 Evergreen Solar Inc. 4% Due 7/15/2013 NOTE 30033RAC2 10808 34794000 34794000 0 0 F5 Networks Inc. COM 315616102 6826 325800 325800 0 0 Flotek Industries Inc. 5.25% Due 2/15/2028 NOTE 343389AA0 2777 11000000 11000000 0 0 Gastar Exploration Limited COM 367299104 16668 30866612 30866612 0 0 Genzyme Corporation COM 372917104 5439 91584 91584 0 0 Gigamedia Limited COM Y2711Y104 11078 2006941 2006941 0 0 GMX Resources COM 38011M108 1300 200000 200000 0 0 Guaranty Bancorp COM 40075t102 1398 798900 798900 0 0 Hornbeck Offshore Services COM 440543106 4572 300000 300000 0 0 IDM Pharma Inc. COM 449394105 18748 10357857 10357857 0 0 Limelight Networks Inc. COM 53261M104 18917 5646873 5646873 0 0 Martek Biosciences Corp COM 572901106 286 15644 15644 0 0 Medicis Pharmaceutical Corp. COM 584690309 24842 2008265 2008265 0 0 Medivation Inc. COM 58501n101 23615 1292531 1292531 0 0 Momenta Pharmaceuticals Inc. COM 60877T100 12327 1119631 1119631 0 0 Northern Oil and Gas COM 665531109 7830 2175100 2175100 0 0 NxStage Medical Inc. COM 67072V103 1326 513877 513877 0 0 Onyx Pharmaceuticals Inc. COM 683399109 74510 2609820 2609820 0 0 Petrohawk Energy COM 716495106 8653 450000 450000 0 0 Plains Exploration & Production Company COM 726505100 2584 150000 150000 0 0 Protalix Biotherapeutics COM 74365A101 440 220148 220148 0 0 Questcor Pharmaceuticals COM 74835Y101 4050 823074 823074 0 0 Rigel Pharmaceuticals Inc COM 766559603 1581 257512 257512 0 0 Riverbed Technology Inc. COM 768573107 1308 100000 100000 0 0 Savient Pharmaceuticals Inc. COM 80517Q100 16184 3269541 3269541 0 0 Shire Ltd-ADR COM 82481R106 7921 220383 220383 0 0 Spreadtrum Communications COM 849415203 446 297200 297200 0 0 St. Jude Medical Inc. COM 790849103 2289 63005 63005 0 0 Superior Energy Services Inc COM 868157108 5800 450000 450000 0 0 The9 Limited COM 88337K104 17300 1282450 1282450 0 0 Toreador Resources Corporation COM 891050106 4786 1906800 1906800 0 0 Triangle Petroleum Corporation COM 89600B102 2508 14751350 14751350 0 0 Unica Corporation COM 904583101 11186 2315864 2315864 0 0 United Therapeutics Corp COM 91307C102 21826 330242 330242 0 0 Vanda Pharma COM 921659108 1569 1743228 1743228 0 0 ViroPharma Incorporated COM 928241108 21529 4100771 4100771 0 0 Western Alliance Bancorp COM 957638109 146 32100 32100 0 0
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