Filed
Pursuant to
Rule 424(b)(3)
Registration No. 333-141447
Supplement to Prospectus
Dated March 20, 2007
Isis Pharmaceuticals, Inc.
The Prospectus, dated March 20, 2007, is hereby supplemented as follows to restate, in its entirty, the “Selling Security Holders” section on pages 23-25 of the Prospectus.
We initially issued the notes to the initial purchasers of the notes who then resold the notes in transactions exempt from the registration requirements of the Securities Act to persons reasonably believed to be “qualified institutional buyers” (as defined in Rule 144A under the Securities Act). The selling security holders (which term includes their transferees, pledgees, donees or their successors) may from time to time offer and sell pursuant to this prospectus or any applicable prospectus supplement any or all of the notes and common stock issuable upon conversion of the notes.
No offer or sale under this prospectus may be made by a selling security holder unless that holder is listed in the table in this prospectus or until that holder has notified us and a supplement to this prospectus has been filed or an amendment to the registration statement of which this prospectus is a part has become effective. We will supplement or amend this prospectus to include additional selling security holders upon request and upon provision of all required information to us. Information concerning the selling security holders may change from time to time and any changed information will be set forth in supplements to this prospectus if and when necessary.
The following table sets forth information about each selling security holder, including the name, the number and percentage of the notes beneficially owned and being offered by the selling security holder and the number and percentage of common stock beneficially owned and being offered by the selling security holder. The percentages of common stock beneficially owned and being offered are based on the number of shares of our common stock that were outstanding as of March 12, 2007. Unless otherwise indicated below, none of the selling security holders nor any of their affiliates, officers, directors or principal equity holders has held any position or office or has had any material relationship with us within the past three years.
|
Name |
|
Principal Amount |
|
Percentage of |
|
Shares of Common |
|
Percentage of |
|
|
Absolute Strategies Fund, Forum Funds Trust |
|
400,000 |
|
* |
|
27,350 |
|
— |
|
|
ADI Alternative Investments |
|
1,000,000 |
|
* |
|
68,376 |
|
— |
|
|
ADI Alternative Investments c/o Casam ADI CB Arbitrage |
|
1,000,000 |
|
* |
|
68,376 |
|
— |
|
|
ADI Alternative Investments c/o Kallista Master Fund Ltd. |
|
2,000,000 |
|
1.2 |
% |
136,752 |
|
— |
|
|
Admiral Flagship Master Fund, Ltd. |
|
500,000 |
|
* |
|
34,188 |
|
— |
|
|
Advent Convertible ARB Master |
|
4,628,000 |
|
2.8 |
% |
316,444 |
|
— |
|
|
Advent Enhanced Phoenix Fund |
|
2,000,000 |
|
1.2 |
% |
136,752 |
|
— |
|
|
AHFP Context |
|
410,000 |
|
* |
|
28,034 |
|
— |
|
|
Alcon Laboratories |
|
377,000 |
|
* |
|
25,777 |
|
— |
|
|
Altma Fund SICAV PLC in respect of the Grafton Sub Fund |
|
1,020,000 |
|
* |
|
69,743 |
|
— |
|
|
Argent Classic Convertible Arbitrage Fund L.P. |
|
850,000 |
|
* |
|
58,119 |
|
— |
|
|
Argent Classic Convertible Arbitrage Fund Ltd. |
|
5,280,000 |
|
3.2 |
% |
361,025 |
|
— |
|
|
Argent Classic Convertible Arbitrage Fund II, L.P. |
|
200,000 |
|
* |
|
13,675 |
|
— |
|
|
Argentum Multi-Strategy Fund Ltd. — Classic |
|
80,000 |
|
* |
|
5,470 |
|
— |
|
|
Arlington County Employees Retirement System |
|
542,000 |
|
* |
|
37,059 |
|
— |
|
|
Barclays Capital Securities Ltd. |
|
5,500,000 |
|
3.4 |
% |
376,068 |
|
— |
|
|
B.C. McCabe Foundation |
|
80,000 |
|
* |
|
5,470 |
|
— |
|
|
BNP Paribas Arbitrage(1)** |
|
500,000 |
|
* |
|
34,188 |
|
— |
|
|
British Virgin Island Social Security Board |
|
125,000 |
|
* |
|
8,547 |
|
— |
|
|
Calamos Market Neutral Income Fund — Calamos Investment Trust |
|
5,000,000 |
|
3.1 |
% |
341,880 |
|
— |
|
|
CASAM Argent Classic Convertible Arbitrage Fund Limited |
|
160,000 |
|
* |
|
10,940 |
|
— |
|
|
CASAM Context Offshore Advantage Fund Limited |
|
380,000 |
|
* |
|
25,982 |
|
— |
|
|
CIBC World Markets Corp |
|
1,665,000 |
|
1.0 |
% |
113,846 |
|
— |
|
|
Citadel Equity Fund, Ltd.(2)** |
|
5,000,000 |
|
3.1 |
% |
341,880 |
|
* |
|
|
City of Shreveport (LA) Employees Retirement System |
|
80,000 |
|
* |
|
5,470 |
|
— |
|
|
City University of New York (CUNY) |
|
108,000 |
|
* |
|
7,384 |
|
— |
|
|
ClearBridge Asset Management Inc.(3)** |
|
7,050,000 |
|
4.3 |
% |
482,051 |
|
— |
|
|
CNH CA Master Account, L.P.(4) |
|
500,000 |
|
* |
|
34,188 |
|
— |
|
|
Columbia Convertible Securities Fund(5) |
|
4,000,000 |
|
2.5 |
% |
273,504 |
|
* |
|
|
Commissioners of the Land Office |
|
850,000 |
|
* |
|
58,119 |
|
— |
|
|
Constans Healthcare Convertible Arbitrage Fund |
|
250,000 |
|
* |
|
17,094 |
|
— |
|
|
Context Advantage Master Fund, LP |
|
3,820,000 |
|
2.4 |
% |
261,196 |
|
— |
|
|
Daimler Chrysler Corp Emp #1 Pension Plan, DTD 4/1/89(6) |
|
787,000 |
|
* |
|
53,811 |
|
— |
|
|
Elite Classic Convertible Arbitrage Ltd. |
|
160,000 |
|
* |
|
10,940 |
|
— |
|
|
Family Service Life Insurance Company(15)** |
|
100,000 |
|
* |
|
6,837 |
|
— |
|
|
Federated Kaufman Fund, a portfolio of Federated Equity Funds(7) |
|
19,800,000 |
|
12.2 |
% |
1,353,846 |
|
12.7 |
% |
|
Finch Tactical Plus Class B |
|
170,000 |
|
* |
|
11,623 |
|
— |
|
|
Florida Power and Light Group Employee Pension Plan(6) |
|
304,000 |
|
* |
|
20,786 |
|
— |
|
|
Franklin and Marshall College(6) |
|
19,000 |
|
* |
|
1,299 |
|
— |
|
|
Froley Revy Alternative Strategies |
|
600,000 |
|
* |
|
41,025 |
|
— |
|
|
GLG Market Neutral Fund(8) |
|
6,000,000 |
|
3.7 |
% |
410,256 |
|
— |
|
|
GMIMCO Trust |
|
990,000 |
|
* |
|
67,692 |
|
— |
|
|
Grady Hospital Foundation |
|
104,000 |
|
* |
|
7,111 |
|
— |
|
|
The Guardian Life Insurance Company of America(15)** |
|
5,000,000 |
|
3.1 |
% |
341,880 |
|
— |
|
|
The Guardian Life Insurance Company of America Pension Trust(15)** |
|
400,000 |
|
* |
|
27,350 |
|
— |
|
|
HFRCA Opportunity Master Trust |
|
205,000 |
|
* |
|
14,017 |
|
— |
|
|
Institutional Benchmarks Series (Master Feeder) Limited in respect of Alcor series |
|
200,000 |
|
* |
|
13,675 |
|
— |
|
|
Intl. Truck & Engine Corp Non Contributory Retirement Plan Trust |
|
635,000 |
|
* |
|
43,418 |
|
— |
|
|
Intl. Truck & Engine Corp Retirement Plan for Salaried Employee’s Trust |
|
280,000 |
|
* |
|
19,145 |
|
— |
|
|
KeySpan Foundation |
|
40,000 |
|
* |
|
2,735 |
|
— |
|
|
KeySpan Insurance Company |
|
140,000 |
|
* |
|
9,572 |
|
— |
|
|
LDG, Limited(9) |
|
222,000 |
|
* |
|
15,179 |
|
— |
|
|
Lord Abbett Investment Trust — LA Convertible Fund |
|
3,080,000 |
|
1.9 |
% |
210,598 |
|
— |
|
|
Lyxor/Context Fund LTD |
|
790,000 |
|
* |
|
54,017 |
|
— |
|
|
Lyxor Master Trust Fund |
|
167,000 |
|
* |
|
11,418 |
|
— |
|
|
McMahan Securities Co. LP |
|
400,000 |
|
* |
|
27,350 |
|
— |
|
|
Mohican VCA Master Fund Ltd |
|
3,100,000 |
|
1.9 |
% |
211,965 |
|
— |
|
|
National Fuel & Gas Company Retirement Plan |
|
445,000 |
|
* |
|
30,427 |
|
— |
|
|
NFS — SCI Funeral and Merchandise Fixed Common Trust |
|
30,000 |
|
* |
|
2,051 |
|
— |
|
|
Occidental Petroleum Corporation |
|
250,000 |
|
* |
|
17,094 |
|
— |
|
|
The Northwestern Mutual Life Insurance Company — General Account(10)** |
|
2,250,000 |
|
1.4 |
% |
153,846 |
|
— |
|
|
The Northwestern Mutual Life Insurance Company — |
|
250,000 |
|
* |
|
17,094 |
|
— |
|
|
NYC Teachers’ Variable Annuity Fund |
|
1,400,000 |
|
* |
|
95,726 |
|
— |
|
|
Philadelphia Board of Pensions |
|
550,000 |
|
* |
|
37,606 |
|
— |
|
|
Police & Fire Retirement System of the City of Detroit |
|
416,000 |
|
* |
|
28,444 |
|
— |
|
|
Polygon Global Opportunities Master Fund(11) |
|
1,000,000 |
|
* |
|
68,376 |
|
— |
|
|
ProMutual |
|
685,000 |
|
* |
|
46,837 |
|
— |
|
|
Rampart Enhanced Convertible Investors, LLC(6) |
|
140,000 |
|
* |
|
9,572 |
|
— |
|
|
San Francisco City and County ERS |
|
1,071,000 |
|
* |
|
73,230 |
|
— |
|
|
SCI Cemetary Merchandise Common Trust |
|
20,000 |
|
* |
|
1,367 |
|
— |
|
|
SCI Pre-Need Common Trust Fund |
|
20,000 |
|
* |
|
1,367 |
|
— |
|
|
Stark Master Fund Ltd.(12)** |
|
6,500,000 |
|
4.0 |
% |
444,444 |
|
— |
|
|
Sterling Invest Co. |
|
1,675,000 |
|
1.0 |
% |
114,529 |
|
— |
|
|
Total Fina Elf Finance USA, Inc. |
|
245,000 |
|
* |
|
16,752 |
|
— |
|
|
TQA Master Fund Ltd.(9) |
|
1,425,000 |
|
* |
|
97,435 |
|
— |
|
|
TQA Master Plus Fund, Ltd.(9)(13) |
|
885,000 |
|
* |
|
60,512 |
|
* |
|
|
Trustmark Insurance Company |
|
267,000 |
|
* |
|
18,256 |
|
— |
|
|
Vermont Mutual Insurance Company |
|
140,000 |
|
* |
|
9,572 |
|
— |
|
|
Vicis Capital Master Fund |
|
9,000,000 |
|
5.5 |
% |
615,384 |
|
— |
|
|
Wachovia Securities International Ltd(14)** |
|
500,000 |
|
* |
|
34,188 |
|
— |
|
|
Worldwide Transactions Limited |
|
210,000 |
|
* |
|
14,358 |
|
— |
|
|
Xavex Convertible Arbitrage 10 Fund |
|
270,000 |
|
* |
|
18,461 |
|
|
|
|
Zurich Institutional Benchmarks Master Fund Ltd. c/o TQA Investors, LLC(9) |
|
468,000 |
|
* |
|
32,000 |
|
— |
|
* Less than 1%
** The selling security holder has represented to us that the notes held by them were purchased in the ordinary course of business and that at the time of purchase of the notes held by them, they did not have any agreements or understandings, directly or indirectly, with any person to distribute the notes held by them or the common stock issuable upon conversion of the notes held by them.
(1) BNP Paribas Security Corp. is an affiliate of BNP Paribus Arbitrage, a registered broker-dealer.
(2) Citadel Equity Fund, Ltd. also beneficially owns 630 shares of our common stock, which are not included for sale under this prospectus. The broker-dealers are under common control with Citadel Equity Fund Ltd. and is directly owned by Citadel Equity Fund. The broker dealers are: Aragon Investments Ltd., Palofax Trading LLC, Citadel Trading Group, LLC and Citadel Derivatives Group, LLC. Citadel Limited Partnership (“CLP”) is the trading manager of Citadel Equity Fund Ltd. and consequently has investment discretion over securities held by Citadel Equity Fund Ltd. Citadel Investment Group, LLC (“CIG”) controls CLP. Kenneth C. Griffin controls CIG and therefore has ultimate investment discretion over securities held by Citadel Equity Fund Ltd. CLP, CIG, and Mr. Griffin each disclaim beneficial ownership of the shares held by Citadel Equity Fund Ltd.
(3) Selling Security Holder is under common control with Legg Mason Investors Services, LLC (“LMIS”), a limited purpose broker-dealer affiliate. LMIS serves as a principal underwriter for certain mutual funds managed by investment advisory affiliates of Legg Mason Inc.
(4) CNH Partners, LLC is Investment Advisor of the Selling Securityholder and has sole voting and dispositive power over the securities. Investment principals for the Advisor are Robert Krail, Mark Mitchell and Todd Pulvino.
(5) Columbia Convertible Securities Fund also beneficially owns $1,960,000 principal amount of our 5.5% convertible subordinated notes due 2009, which are convertible into approximately 117,894 shares of our common stock. Neither of these securities are included for sale under this prospectus.
(6) Palisade Capital Management, LLC acts as an Investment Advisor.
(7) Federated Kaufman Fund also beneficially owns 9,274,660 shares of our common stock and 1,176,470 shares of our common stock issuable upon exercise of warrants. Neither of these securities are included for sale under this prospectus.
(8) GLG Market Neutral Fund is a publicly owned company listed on the Irish Stock Exchange. GLG Partners LP, and English limited partnership, acts as the investment manager of the fund and has voting and dispositive power over the securities held by the fund. The general partner of GLG Partners LP is GLG Partners Limited, an English limited company. The shareholders of GLG Partners Limited are Noam Gottesman, Pierre Lagrange, Jonathan Green, Philippe Jabre and Lehman Brothers (Cayman) Limited, a subsidiary of Lehman Brothers Holdings, Inc., a publicly-held entity. The managing directors of GLG Partners Limited are Noam Gottesman, Pierre Lagrange and Emmanual Roman and, as a result, each has voting and dispositive power over the securities held by the fund. GLG Partners LP, GLG Partners Limited, Noam Gottesman, Pierre Lagrange and Emmanual Roman disclaim beneficial ownership of the securities held by the Fund, except for their pecuniary interest therein.
(9) TQA Investors LLC has sole investment power and shared voting power. Its members are: John Idone, Paul Bucci and Darren Langis and Andrew Anderson.
(10) The following NASD members are affiliated with Northwestern Mutual: Northwestern Mutual Investment Services, LLC, Russell Institutional Services, Russell Implementation Services, Inc., Russell Fund Distributiors, Inc., and Todd Securities, LLC
(11) Polygon Investment Partner LLP and Polygon Investment Partners LP (the “Investment Manager”), Polygon Investments Ltd. (the “Manager”), Alexander E. Jackson, Reade E. Griffith, and Patrick G. G. Dear share voting and dispositive power of the securities held by Polygon Global Opportunities Master Fund. The Investment Mangers, the Manger, Alexander E. Jackson, Reade E. Griffith, and Patrick G. G. Dear disclaim beneficial ownership of the securities held by Polygon Global Opportunities Master Fund.
(12) Stark Master Fund Ltd. is an affiliate of Reliant Trading, a registered broker-dealer.
(13) TQA Master Plus Fund, Ltd also beneficially owns 10,000 shares of our common stock, which are not included for sale under this prospectus.
(14) Wachovia Securities Intl. Ltd and Wachovia Capital Markets LLC are subsidiaries of Wachovia Corporation.
(15) Park Avenue Securities LLC and Guardian Investor Services LLC are broker dealers which are indirect, wholly owned subsidiaries of The Guardian Life Insurance Company of America.
We prepared this table based on the information supplied to us by the selling security holders named in the table and we have not sought to verify such information.
The selling security holders listed in the above table may have sold or transferred, in transactions exempt from the registration requirements of the Securities Act, some or all of their notes since the date on which the information in the above table was provided to us. Information about the selling security holders may change over time.
Because the selling security holders may offer all or some of the notes or the shares of common stock issuable upon conversion of the notes from time to time, we cannot estimate the amount of the notes or shares of common stock that will be held by the selling security holders upon the termination of any particular offering by a selling security holder. See “Plan of Distribution.”
The date of this Prospectus Supplement is April 6, 2007