FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * LAPIDUS SIDNEY   2. Issuer Name and Ticker or Trading Symbol KNOLL INC [KNL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O WARBURG PINCUS & CO., 466 LEXINGTON AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 12/17/2004 (Street) NEW YORK, NY 10017-3147 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 12/17/2004   S   12,095,960 D $ 15 29,867,952 I See footnote (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LAPIDUS SIDNEY C/O WARBURG PINCUS & CO. 466 LEXINGTON AVENUE NEW YORK, NY 10017-3147	X

Signatures

/s/ Sidney Lapidus		12/20/2004
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	The stockholders are Warburg, Pincus Ventures, L.P., a Delaware limited partnership ("WPV"), and Warburg Pincus & Co., a New York general partnership ("WP"). WP is the sole general partner of WPV. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and together with WPV and WP, the "Warburg Entities"), manages WPV. Sidney Lapidus, a director of Knoll, Inc., is a general partner of WP and a managing director and member of WP LLC. All shares indicated as owned by Mr. Lapidus are included because of his affiliation with the Warburg Entities. By reason of such affiliation, Mr. Lapidus may be deemed to have an indirect pecuniary interest within the meaning of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), in an indeterminate portion of the shares reported herein. Mr. Lapidus disclaims "beneficial ownership" of such shares within the meaning of Rule 13d-3 under the Exchange Act.
Remarks: A Power of Attorney from Sidney Lapidus is being filed with this Form 4 as Exhibit 24.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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