Edgar Filing: SPECTRASITE HOLDINGS INC

PROSPECTUS SUPPLEMENT NO. 4
(To Prospectus dated February 9, 2001)

SPECTRASITE HOLDINGS, INC.
6 3/4% SENIOR CONVERTIBLE NOTES DUE 2010

This prospectus supplement no. 4 supplements and amends the prospectus
dated February 9, 2001, as supplemented by prospectus supplement no. 1 dated
February 20, 2001, prospectus no. 2 dated March 7, 2001 and prospectus no. 3
dated March 15, 2001, relating to the resale of SpectraSite's 6 3/4% senior
convertible notes due 2010 and the shares of SpectraSite common stock, par value
$.001 per share, issuable upon conversion of the notes.

The table and footnotes on pages 35 through 38 of the prospectus set
forth information with respect to the selling holders and the respective amounts
of convertible notes held and shares of common stock beneficially owned by each
selling holder that may be offered pursuant to the prospectus, as supplemented
and amended. This prospectus supplement amends the table in the prospectus by
(i) adding CIBC World Markets International Arbitrage, (ii) removing Arpeggio
Fund, LP, BTESC, BTOPO Growth vs Value, Duckbill & Co., General Motors Welfare
Benefit Trust (L-T Veba), General Motors Welfare Benefit Trust (ST-Veba),
Investcorp - SAM Fund LTD., KBC Cayman, Palladin Securities Cayman LLC, Rhapsody
Fund, LP, Spear, Leeds & Kellogg, Thomas Weisel Partners LLC and Variable
Insurance Products Fund III: Aggressive Growth Portfolio and (iii) replacing the
information contained in the table for AIG SoundShore Opportunity Holding Fund
Ltd., Amaranth Securities L.L.C., Deutsche Bank Alex. Brown, First Union
International Capital Markets, Global Bermuda Limited Partnership, Paloma
Securities LLC, UBS O'Connor LLC F/B/O UBS Global Equity Arbitrage Master Ltd.
and for the category "Any other holder of notes or future transferee, pledgee,
donee or successor of any holder" with the corresponding information set forth
below.

(footnotes on following page)

The prospectus, together with this prospectus supplement no. 4, prospectus
supplement no. 3, prospectus supplement no. 2 and prospectus supplement no. 1,
constitutes the prospectus required to be delivered by Section 5(b) of the
Securities Act of 1933, as amended, with respect to offers and sales of the
convertible notes and the common stock issuable upon conversion of the
convertible notes.

Prospective investors should carefully review "Risk Factors" beginning on
page 5 of the prospectus for a discussion of risks that should be considered
when investing in the notes or our common stock.

Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or passed upon the
adequacy or accuracy of this prospectus or any accompanying prospectus
supplement. Any representation to the contrary is a criminal offense.

The date of this prospectus supplement is March 26, 2001.

(1) CIBC World Markets International Arbitrage is an affiliate of Canadian
Imperial Bank of Commerce. Of the 10,556,522 shares reported as
beneficially owned by CIBC World Markets International Arbitrage,
10,000,000 are held by other affiliates of Canadian Imperial Bank of
Commerce. An affiliate of Canadian Imperial Bank of Commerce, CIBC
World Markets, was an initial purchaser or placement agent for our 12%
senior discount notes due 2008, our 11 1/4% senior discount notes due
2009, our 12 7/8% senior discount notes due 2010, our 10 3/4% senior
notes due 2010 and our 12 1/2% senior notes due 2010. CIBC World
Markets was also a co-manager of our public common stock offerings in
February 2000 and July 2000. In addition, CIBC World Markets is an
agent and a lender under our credit facility. CIBC World Markets and
its affiliates received customary fees for these services. The Trimaran
group purchased 4,000,000 shares of our common stock in a private
placement at a purchase price of $18.75 per share and received warrants
to purchase 1,500,000 shares of common stock at exercise prices ranging
from $21.56 per share to $28.00 per share. Certain investors in the
Trimaran group are affiliates of CIBC World Markets. Andrew R. Heyer is
a Managing Director of CIBC World Markets and a managing member of
Trimaran Fund Management, L.L.C., the investment advisor to Trimaran
Fund II L.L.C. Mr. Heyer was a member of Holdings' board of directors
from April 1999 until November 2000. Our stockholders' agreement, as
amended, provides that so long as the Trimaran group and Canadian
Imperial Bank of Commerce and their respective affiliates own
collectively 5% or more of Holdings' outstanding stock, Canadian
Imperial Bank of Commerce affiliates and Caravelle Investment Fund,
L.L.C. collectively will have the right to designate a representative
to attend meetings of Holdings' board of directors as an observer.

(2) Deutsche Banc Alex. Brown was a co-lead underwriter of our public
common stock offering in July 2000 and a co-manager of our public
common stock offering in February 2000. Deutsche Banc was also a
placement agent for our 12 7/8 % senior discount notes due 2010 and
our 10 3/4% senior notes due 2010.

The following table sets forth, as of March 26, 2001, information regarding
the beneficial ownership of the notes and our common stock by the selling
holders. The information is based on information provided by or on behalf of the
selling holders through March 26, 2001.

Shares of
Common
Principal Principal Stock Shares of Shares of
Amount Amount of Beneficially Common Common Stock
of Notes Notes Owned Owned Stock Beneficially
Owned and After the Prior to Offered Owned After
Selling Securityholders Offered(1) Offering(2) Offering Hereby(3)(4) the Offering(2)
--------------------------------------- ------------ ------------ ------------ ------------ ----------------
AIG SoundShore Opportunity Holding Fund
Ltd. ................................ $ 1,000,000 none 46,377 46,377 none
AIG SoundShore Strategic Holding Fund
Ltd. ................................ 5,000,000 none 231,885 231,885 none
Allstate Insurance Company............. 625,000 none 28,986 28,986 none
Allstate Life Insurance Company........ 75,000 none 3,479 3,479 none
Alpine Associates...................... 5,600,000 none 259,711 259,711 none
Alpine Partners, L.P. ................. 900,000 none 41,740 41,740 none
Alta Partners Holdings, LDC (5)........ 8,000,000 none 655,115 371,015 284,100
Amaranth Securities L.L.C. ............ 4,800,000 none 222,609 222,609 none
Bank America Pension Plan.............. 4,000,000 none 185,508 185,508 none
CIBC World Markets International
Arbitrage (6)........................ 12,000,000 none 10,556,522 556,522 10,000,000
Castle Convertibles Fund, Inc. ........ 1,250,000 none 57,972 57,972 none
DEAM Convertible Arbitrage Fund ....... 2,000,000 none 92,754 92,754 none
Deephaven Domestic Convertible Trading
Ltd. (7)............................. 3,000,000 none 139,131 139,131 none
Deeprock & Co. ........................ 2,500,000 none 115,943 115,943 none
Deutsche Banc Alex. Brown (8).......... 11,367,000 none 2,614,298 527,166 2,087,132
DIA High Yield Bond Fund (9)........... 250,000 none 11,595 11,595 none
Eaton Vance High Income Portfolio (10). 2,860,000 none 132,638 132,638 none
Eaton Vance Income Fund of Boston (11). 1,540,000 none 71,421 71,421 none
First Union International Capital
Markets.............................. 5,000,000 none 231,885 231,885 none
Global Bermuda Limited Partnership..... 2,900,000 none 134,493 134,493 none
Hallmark Master Trust High Yield (12).. 250,000 none 11,595 11,595 none
JMG Capital Partners, LP............... 3,500,000 none 162,319 162,319 none
JMG Triton Offshore Fund, Ltd. ........ 3,500,000 none 162,319 162,319 none
KBC Financial Products USA............. 2,100,000 none 97,392 97,392 none
Lakeshore International Ltd. .......... 4,100,000 none 190,145 190,145 none
Lancer Securities Cayman LTD........... 1,000,000 none 46,377 46,377 none
Lehman Brothers Inc. (13).............. 1,000,000 none 46,377 46,377 none
Lipper Convertibles, L.P. ............. 11,367,000 none 527,166 527,166 none
Lipper Convertibles Series II, L.P. ... 2,000,000 none 92,754 92,754 none
Lipper Offshore Convertibles, L.P. .... 2,000,000 none 92,754 92,754 none
Lipper Offshore Convertibles, L.P. #2.. 1,000,000 none 46,377 46,377 none
Merced Partners Limited Partnership.... 5,000,000 none 231,885 231,885 none
Morgan Stanley & Co. Incorporated (14). 10,251,000 none 8,022,794 475,409 7,547,385
Nomura Securities International, Inc. . 1,000,000 none 46,377 46,377 none
Paloma Securities LLC.................. 4,200,000 none 198,783 194,783 4,000
Peoples Benefit Life Insurance
Company.............................. 4,000,000 none 185,508 185,508 none
Peoples Benefit Life Insurance Company
TEAMSTERS............................ 6,000,000 none 278,261 278,261 none
PGEP III LLC........................... 500,000 none 23,189 23,189 none
Quattro Fund, LLC...................... 3,500,000 none 162,319 162,319 none
Retail Clerks Pension Trust............ 2,500,000 none 115,943 115,943 none
Retail Clerks Pension Trust #2......... 1,500,000 none 69,566 69,566 none
St. Albans Partners Ltd................ 4,000,000 none 185,508 185,508 none
TIAA-CREF Mutual Funds
F/B/O its High Yield Bond Fund (15).. 250,000 none 11,595 11,595 none
TQA Master Plus Fund, LTD.............. 500,000 none 23,189 23,189 none
TQA Master Fund, LTD................... 2,000,000 none 92,754 92,754 none
Teachers Insurance and Annuity
Association.......................... 6,000,000 none 278,261 278,261 none
UBS O'Connor LLC F/B/O UBS Global
Equity Arbitrage Master Ltd.......... 3,500,000 none 162,319 162,319 none
Volkswagen of America Inc.--
Salaried Eaton Vance Mgt. (16)....... 100,000 none 4,638 4,638 none
Any other holder of notes or future
transferee, pledgee, donee or
successor of any holder (17)......... 38,715,000 none 1,795,479 1,795,479 none
----------
3

(1) Assumes that the full amount of the notes held by the selling holder is
being offered for registration hereunder.

(2) Because the selling holders may, pursuant to the prospectus, offer all or
some portion of the notes and shares they presently hold or, with respect
to shares, have the right to acquire upon conversion of such notes, we
cannot predict the amount or percentage of the notes and shares that will
be held by the selling holder upon termination of any such sales. In
addition, the selling holders identified above may have sold, transferred
or otherwise disposed of all or a portion of their notes and shares since
the date on which they provided the information regarding their notes and
shares in transactions exempt from the registration requirements of the
Securities Act. See "Plan of Distribution." The selling holders may sell
all, part or none of the notes or shares listed in the table. The amounts
listed in the table assume that each selling holder sells all of its
convertible notes and/or shares of common stock underlying such notes.

(3) Assumes that the full amount of the notes held by the selling holder is
converted into shares of common stock at the conversion price and offered
hereunder by such selling holder.

(4) The conversion price and the number of shares issuable upon conversion of
the notes are subject to adjustment under certain circumstances. See
"Description of Notes--Conversion of Notes." Section 15.3 of the indenture
governing the convertible notes provides that if any fractional shares of
common stock are issuable upon conversion of the notes, Holdings may
either pay cash in lieu of such fractional shares or round up the number
of shares issuable upon conversion. The number of shares reported in the
table assumes that Holdings rounds up the number of shares issued upon
conversion. We expressly reserve the right to pay cash in lieu of
fractional shares, and any decision as to whether pay cash or round up for
fractional shares will be made at the time the notes are surrendered for
conversion.

(5) Alta Partners Holdings, LDC has sold 284,100 shares of SpectraSite common
stock short.

(6) CIBC World Markets International Arbitrage is an affiliate of Canadian
Imperial Bank of Commerce. Of the 10,556,522 shares reported as
beneficially owned by CIBC World Markets International Arbitrage,
10,000,000 are held by other affiliates of Canadian Imperial Bank of
Commerce. An affiliate of Canadian Imperial Bank of Commerce, CIBC World
Markets, was an initial purchaser or placement agent for our 12% senior
discount notes due 2008, our 11 1/4% senior discount notes due 2009, our
12 7/8% senior discount notes due 2010, our 10 3/4% senior notes due 2010
and our 12 1/2% senior notes due 2010. CIBC World Markets was also a
co-manager of our public common stock offerings in February 2000 and July
2000. In addition, CIBC World Markets is an agent and a lender under our
credit facility. CIBC World Markets and its affiliates received customary
fees for these services. The Trimaran group purchased 4,000,000 shares of
our common stock in a private placement at a purchase price of $18.75 per
share and received warrants to purchase 1,500,000 shares of common stock
at exercise prices ranging from $21.56 per share to $28.00 per share.
Certain investors in the Trimaran group are affiliates of CIBC World
Markets. Andrew R. Heyer is a Managing Director of CIBC World Markets and
a managing member of Trimaran Fund Management, L.L.C., the investment
advisor to Trimaran Fund II L.L.C. Mr. Heyer was a member of Holdings'
board of directors from April 1999 until November 2000. Our stockholders'
agreement, as amended, provides that so long as the Trimaran group and
Canadian Imperial Bank of Commerce and their respective affiliates own
collectively 5% or more of Holdings' outstanding stock, Canadian Imperial
Bank of Commerce affiliates and Caravelle Investment Fund, L.L.C.
collectively will have the right to designate a representative to attend
meetings of Holdings' board of directors as an observer.

(7) Deephaven Domestic Convertible Trading Ltd. owned $2,000,000 aggregate
principal amount of Holdings' 12 1/2% senior discount notes due 2010.

(8) Deutsche Banc Alex.Brown was a co-lead underwriter of our public common
stock offering in July 2000 and a co-manager of our public common stock
offering in February 2000. Deutsche Banc was also a placement agent for
our 12 7/8 % senior discount notes due 2010 and our 10 3/4% senior notes
due 2010.

(9) DIA High Yield Bond Fund owned $2,750,000 aggregate principal amount of
Holdings' 11 1/4% senior discount notes due 2009 prior to the offering.

(10) Eaton Vance High Income Portfolio owned $5,360,000 aggregate principal
amount of Holdings' 12% senior discount notes due 2008, $25,500,000
aggregate principal amount of Holdings' 11 1/4% senior discount notes due
2009 and $3,870,000 aggregate principal amount of Holdings' 12 7/8% senior
discount notes due 2010 prior to the offering.

(11) Eaton Vance Income Fund of Boston owned $1,150,000 aggregate principal
amount of Holdings' 12% senior discount notes due 2008, $12,235,000
aggregate principal amount of Holdings' 11 1/4% senior discount notes due
2009 and $4,080,000 aggregate principal amount of Holdings' 12 7/8% senior
discount notes due 2010 prior to the offering.

(12) Hallmark Master Trust High Yield owned $1,550,000 of SpectraSite's 11 1/4%
senior discount notes due 2009 prior to the offering.

(13) Lehman Brothers Inc. was an initial purchaser of our 12% senior discount
notes due 2008 and a co-manager of our public common stock offerings in
February 2000 and July 2000.

(14) Morgan Stanley & Co. Incorporated was the placement agent for the
convertible notes. Morgan Stanley & Co. Incorporated was also an initial
purchaser or placement agent for our 11 1/4% senior discount notes due
2009, our 12 7/8% senior discount notes due 2010 and our 10 3/4% senior
notes due 2010 and was co-lead underwriter of our public common stock
offerings in February 2000 and July 2000.

(15) TIAA-CREF Mutual Funds F/B/O its High Yield Bond Fund owned $250,000
aggregate principal amount of Holdings' 12 1/2% senior discount notes due
2010 prior to the offering.

(16) Volkswagen of America Inc.--Salaried Eaton Vance Mgt. owned $15,000 of
Holdings' 11 1/4% senior discount notes due 2009 prior to the offering.

(17) We may from time to time include additional selling holders and
information about such selling holders' plans of distribution in future
supplements to the prospectus, if required. The amounts provided assume
that any holders of the notes, or any future transferees, pledgees, donees
or successors of or from any such other holders of notes, do not
beneficially own any common stock other than the common stock issuable
upon conversion of the notes at the conversion rate.