UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 3
INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES
1. Name and Address of Reporting Person
Dow, Stephen M.
c/o Sevin Rosen Funds
Two Galleria Tower
13455 Noel Road, Suite 1670
Dallas, TX 75240
2. Date of Event Requiring Statement (Month/Day/Year)
February 7, 1997
3. IRS or Social Security Number of Reporting Person (Voluntary)
4. Issuer Name and Ticker or Trading Symbol
CIENA Corporation
("CIEN")
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)
( ) Director (X) 10% Owner ( ) Officer (give title below) ( ) Other
(specify below)
6. If Amendment, Date of Original (Month/Day/Year)
2/5/97
7. Individual or Joint/Group Filing (Check Applicable Line)
(X) Form filed by One Reporting Person
( ) Form filed by More than One Reporting Person
<TABLE>
<CAPTION>
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Table I -- Non-Derivative Securities Beneficially Owned |
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1. Title of Security |2. Amount of |3. Ownership |4. Nature of Indirect |
| Securities | Form: | Beneficial Ownership |
| Beneficially | Direct(D) or | |
| Owned | Indirect(I) | |
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<S> <C> <C> <C>
Common Stock |204,325 |I |By Sevin Rosen Fund IV L.P.(1) |
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<CAPTION>
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Table II -- Derivative Securitites Beneficially Owned |
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1.Title of Derivative |2.Date Exer- |3.Title and Amount | |4. Conver-|5. Owner- |6. Nature of Indirect |
Security | cisable and | of Underlying | |sion or |ship | Beneficial Ownership |
| Expiration | Securities | |exercise |Form of | |
| Date(Month/ |-----------------------|---------|price of |Deriv- | |
| Day/Year) | |Amount |deri- |ative | |
| Date | Expira- | |or |vative |Security: | |
| Exer- | tion | Title |Number of|Security |Direct(D) or | |
| cisable | Date | |Shares | |Indirect(I) | |
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<S> <C> <C> <C> <C> <C> <C> <C>
Series A Convertible Pre|(2) |(2) |Common Stock |5,743,945| |I |By Sevin Rosen Fund IV L.P.|
ferred Stock | | | | | | |(1) |
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Series B Convertible Pre|(2) |(2) |Common Stock |3,704,990| |I |By Sevin Rosen Fund IV L.P.|
ferred Stock | | | | | | |(1) |
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Series C Convertible Pre|(2) |(2) |Common Stock |1,428,570| |I |By Sevin Rosen Fund IV L.P.|
ferred Stock | | | | | | |(1) |
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Series C Convertible Pre|(2) |(2) |Common Stock |714,285 | |I |By Sevin Rosen Fund V L.P.(|
ferred Stock | | | | | | |1) |
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</TABLE>
Explanation of Responses:
(1) Mr. Dow is an affiliate of Sevin Rosen Fund IV L.P., Sevin Rosen Fund V
L.P. and may be deemed to beneficially
own the shares held by these entities. Mr. Dow disclaims beneficial ownership
of the shares held by such entities
except to the extent of his proportionate partnership interest
therein.
(2) Upon the closing of the Issuer's initial public offering of its Common
Stock, each issued and outstanding share of
its convertible preferred stock will automatically convert into five shares of
its Common Stock.
SIGNATURE OF REPORTING PERSON
/s/ John V. Jaggers, Attorney-in-Fact
DATE
October 7, 1997
