<PAGE>
Filed Pursuant to Rule 424(b)(3)
Registration No. 333-49980
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED DECEMBER 7, 2000)
TRANSWITCH CORPORATION
$460,000,000 4 1/2% Convertible Notes Due 2005
_______________
7,428,640 Shares of Common Stock Issuable Upon Conversion of the Notes
_______________
This prospectus supplement relates to resales by selling securityholders of:
. our 4 1/2% Convertible Notes Due 2005 and
. our common stock into which the notes are convertible
This prospectus supplement should be read in conjunction with the prospectus
dated December 7, 2000, which is to be delivered with this prospectus
supplement.
SEE RISK FACTORS BEGINNING ON PAGE 5 OF THE PROSPECTUS
TO READ ABOUT FACTORS YOU SHOULD CONSIDER
BEFORE BUYING THE NOTES OR OUR COMMON STOCK.
__________________________________________
Neither the Securities and Exchange Commission nor any other regulatory body has
approved or disapproved of these securities or passed upon the accuracy or
adequacy of this prospectus. Any representation to the contrary is a criminal
offense.
<PAGE>
The information in the table appearing in the prospectus under the heading
"Selling Securityholders" is superseded in its entirety by the information
appearing in the following table:
<TABLE>
<CAPTION>
NOTES OWNED SHARES OWNED
PRIOR TO THE NOTES OFFERED PRIOR TO SHARES THAT
SECURITYHOLDER OFFERING HEREBY OFFERING MAY BE SOLD
-------------- ------------ ------------- ------------ -----------
<S> <C> <C> <C> <C>
Nomura Securities
International, Inc. ... $4,500,000 $4,500,000 9,144 72,671
Worldwide Transactions,
Ltd. .................. 164,000 164,000 -- 2,648
Deutsche Bank
Securities, Inc. ...... 22,000,000 22,000,000 -- 355,282
Argent Classic
Convertible Arbitrage
Fund L.P. ............. 1,000,000 1,000,000 -- 16,149
R2 Investments, LDC..... 3,000,000 3,000,000 -- 48,447
Black Diamond Offshore,
Ltd. .................. 750,000 750,000 -- 12,111
Double Black Diamond
Offshore, LDC.......... 3,086,000 3,086,000 -- 49,836
First Union
International Capital
Markets Inc. .......... 21,000,000 21,000,000 -- 339,133
Bear Stearns & Co.
Inc. .................. 500,000 500,000 -- 8,074
White River Securities
L.L.C. ................ 500,000 500,000 -- 8,074
Fuji U.S. Income Open... 500,000 500,000 -- 8,074
Lord Abbett Bond
Debenture Fund......... 6,000,000 6,000,000 -- 96,895
Cova Bond Debenture
Fund................... 500,000 500,000 -- 8,074
J.P. Morgan Securities,
Inc. .................. 1,347,000 1,347,000 -- 21,752
Chase Manhattan
International.......... 20,470,000 20,470,000 -- 330,574
Morgan Stanley Dean
Witter Convertible
Securities Trust....... 1,000,000 1,000,000 -- 16,149
Highbridge International
LLC.................... 14,000,000 14,000,000 -- 226,089
AIM Charter Fund........ 50,000,000 50,000,000 -- 807,460
AIM Strategic Income
Fund................... 1,250,000 1,250,000 -- 20,186
AIM VI Growth And
Income................. 15,000,000 15,000,000 -- 242,238
Susquehanna Capital
Group.................. 2,500,000 2,500,000 -- 40,373
American Skandia Trust.. 10,000 10,000 -- 161
Arkansas PERS........... 2,100,000 2,100,000 -- 33,913
ICI American Holdings
Trust.................. 875,000 875,000 -- 14,130
Zeneca Holdings Trust... 500,000 500,000 -- 8,074
Delaware PERS........... 1,625,000 1,625,000 -- 26,242
PRIM Board.............. 3,225,000 3,225,000 -- 52,081
Southern Farm Bureau
Life Insurance......... 1,275,000 1,275,000 -- 20,590
First Republic Bank..... 50,000 50,000 -- 807
Starvest Managed
Portfolio.............. 45,000 45,000 -- 726
AIG/National Union Fire
Insurance.............. 1,260,000 1,260,000 -- 20,348
Boilermakers Blacksmith
Pension Trust.......... 1,475,000 1,475,000 -- 23,820
State of Oregon Equity.. 5,250,000 5,250,000 -- 84,783
Starvest Combined
Portfolio.............. 1,550,000 1,550,000 -- 25,031
F.R. Convt Sec FN....... 100,000 100,000 -- 1,614
Nalco Chemical Company.. 480,000 480,000 -- 7,751
Island Holdings......... 75,000 75,000 -- 1,211
Ariston Internet
Convertible Fund....... 30,000 30,000 -- 484
OCM Convertible Trust... 4,290,000 4,290,000 -- 69,280
Delta Air Lines Master
Trust.................. 2,995,000 2,995,000 -- 48,366
State Employees'
Retirement Fund of the
State of Delaware...... 4,380,000 4,380,000 -- 70,733
State of Connecticut
Combined Investment
Funds.................. 9,625,000 9,625,000 -- 155,436
Partner Reinsurance
Company, Ltd........... 1,755,000 1,755,000 -- 28,341
Chrysler Corporation
Master Retirement
Trust.................. 8,680,000 8,680,000 -- 140,175
Motion Picture Industry
Health Plan--Active.... 1,015,000 1,015,000 -- 16,391
Motion Picture Industry
Health Plan--Retired... 505,000 505,000 -- 8,155
Vanguard Convertible
Securities Fund, Inc... 10,455,000 10,455,000 -- 168,840
Argent Classic
Convertible Arbitrage
Fund (Bermuda) L.P..... 1,000,000 1,000,000 -- 16,149
KBC Financial Products.. 1,800,000 1,800,000 -- 29,068
Clinton Riverside
Convertible Portfolio
Limited................ 5,000,000 5,000,000 -- 80,746
UBS AG London........... 15,000,000 15,000,000 -- 242,238
CIBC World Markets...... 13,000,000 13,000,000 -- 209,939
Onyx Fund Holdings...... 19,500,000 19,500,000 -- 314,909
Zeneca AG Products Inc. 155,000 155,000 -- 2,503
Robertson Stephens...... 20,000,000 20,000,000 -- 322,984
Morgan Stanley & Co..... 6,000,000 6,000,000 -- 96,895
Lincoln National
Convertible
Securities
Fund................... 2,000,000 2,000,000 -- 32,298
Employee Benefit
Convertible Securities
Fund................... 180,000 180,000 -- 2,906
Nations Convertible
Securities Fund........ 2,820,000 2,820,000 -- 45,540
State of Maryland
Retirement Agency...... 5,357,000 5,357,000 -- 86,511
Occidental Petroleum
Corporation............ 389,000 389,000 -- 6,282
Merrill Lynch Insurance
Group.................. 511,000 511,000 -- 8,252
Ohio Bureau of Workers
Compensation........... 265,000 265,000 -- 4,279
Shell Pension Trust..... 758,000 758,000 -- 12,241
British Virgin Islands
Social Security Board. 75,000 75,000 -- 1,211
1976 Distribution Trust
FBO Jane A. Lauder..... 29,000 29,000 -- 468
1976 Distribution Trust
FBO A.R.
Lauder/Zinterhofer..... 28,000 28,000 -- 452
New Orleans Firefighters
Pension/Relief Fund.... 226,000 226,000 -- 3,649
The Grable Foundation... 198,000 198,000 -- 3,197
City University of
New York............... 251,000 251,000 -- 4,053
Grady Hospital
Foundation............. 218,000 218,000 -- 3,520
Independence Blue Cross. 214,000 214,000 -- 3,445
Local Initiatives
Support Union.......... 98,000 98,000 -- 1,582
Raytheon Master Pension
Trust.................. 817,000 817,000 -- 13,193
Arapahoe County
Colorado............... 101,000 101,000 -- 1,631
RJR Reynolds............ 195,000 195,000 -- 3,149
Nabisco Holdings........ 61,000 61,000 -- 985
American Motorist
Insurance Company...... 1,064,000 1,064,000 -- 17,182
Ramius Capital Group
Holdings, Ltd.......... 1,550,000 1,550,000 -- 25,031
RCG Latitude Master
Fund................... 350,000 350,000 -- 5,652
Bank Austria Cayman
Islands, Ltd........... 6,600,000 6,600,000 -- 106,584
Conseco Fund Group-
Convertible Securities
Fund................... 2,250,000 2,250,000 -- 36,335
Merrill Lynch, Pierce
Fenner and Smith, Inc.. 12,052,000 12,052,000 -- 194,630
Merrill Lynch
International Ltd...... 10,000,000 10,000,000 -- 161,492
AAM/Zazove Institutional
Income Fund, L.P.
(BS)................... 1,000,000 1,000,000 -- 16,149
Zurich HFR Master Hedge
Fund Index Ltd. ....... 110,000 110,000 -- 1,776
Oppenheimer Convertible
Securities Fund........ 6,000,000 6,000,000 -- 96,895
US Bancorp Piper
Jaffrey................ 450,000 450,000 -- 7,267
First Union Securities
Inc. .................. 2,000,000 2,000,000 -- 32,298
Van Kampen Harbor Fund.. 4,000,000 4,000,000 427,180(2) 64,596
Goldman Sachs and
Company................ 990,000 990,000 -- 15,987
Tribeca Investments LLC. 17,200,000 17,200,000 -- 277,766
McMahan Securities Co.
L.P. .................. 500,000 500,000 -- 8,074
Morse, Williams & Company,
Inc. on behalf of
Roger J. Harding....... 50,000 50,000 -- 807
Morse, Williams & Company,
Inc. on behalf of
Theodore H. Barth
Foundation............. 50,000 50,000 -- 807
Morse, Williams & Company,
Inc. on behalf of
ASPCA Pension Fund..... 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of IDG
Holdings Inc. ......... 250,000 250,000 -- 4,037
Morse, Williams & Company,
Inc. on behalf of The
Stepping Stone
Foundation............. 150,000 150,000 -- 2,422
Morse, Williams & Company,
Inc. on behalf of
RWH/MRH TR FBO
Pamela Howard.......... 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of Sue
Ling Gin McGowan....... 50,000 50,000 -- 807
Morse, Williams & Company,
Inc. on behalf of Wall
Street Fund............ 150,000 150,000 -- 2,422
Morse, Williams & Company,
Inc. on behalf of Gloria
Bee Helm Non-Exempt Marital
Trust.................. 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of 7/16/84
TST-HTW Wamsler........ 150,000 150,000 -- 2,422
Morse, Williams & Company,
Inc. on behalf of
Paul Leach............. 250,000 250,000 -- 4,037
Morse, Williams & Company,
Inc. on behalf of AA
Retirement Trust....... 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of Gloria
Smith Helm............. 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of National
Capital Poison Center
Endowment.............. 100,000 100,000 -- 1,614
Morse, Williams & Company,
Inc. on behalf of The
Adams Charitable
Foundation Inc. ....... 200,000 200,000 -- 3,229
Morse, Williams & Company,
Inc. on behalf of William
G. McGowan Charitable
Fund, Inc. ............ 500,000 500,000 -- 8,074
Morse, Williams & Company,
Inc. on behalf of
TAIR LTD............... 100,000 100,000 -- 1,614
Forest Fulcrum Fund
L.P. .................. 850,000 850,000 -- 13,726
Forest Alternative
Strategies Fund II
L.P. ASM............... 75,000 75,000 -- 1,211
Forest Global
Convertible Fund A-5... 3,875,000 3,875,000 -- 62,578
Unknown(1).............. 56,146,000 56,146,000 -- 906,714
</TABLE>
(1) The name "Unknown" in the table above represents the remaining selling
securityholders. We are unable to provide the names of these holders at this
time because certain of these notes are evidenced by a global note that has been
deposited with DTC and registered in the name of Cede & Co. as DTC's nominee.
(2) TranSwitch Corporation Common Stock is held by three affiliates of Van
Kampen Harbor Fund: (a) 27,000 shares are held by Van Kampen Growth Fund; (b)
400,000 shares are held by Van Kampen Aggressive Growth Fund; and (c) 180 shares
are held by Van Kampen Life Investment Trust Aggressive Growth Fund.
The date of this prospectus supplement is January 9, 2001.
