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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1. Name and Address of Reporting Person * TRINITY VENTURES VI L P   2. Issuer Name and Ticker or Trading Symbol LoopNet, Inc. [LOOP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 3000 SAND HILL ROAD, BUILDING 4, SUITE 160 3. Date of Earliest Transaction (Month/Day/Year) 06/12/2006 (Street) MENLO PARK, CA 94025 4. If Amendment, Date Original Filed(Month/Day/Year) 06/12/2006 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ 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 06/12/2006   C   124,850 A (1) 156,063 I By PropertyFirst, LLC (2) (3) Common Stock 06/12/2006   C   900,419 A (1) 1,125,522 I By LoopNet Holdings LLC (3) (4) Common Stock 06/12/2006   C   3,861 A (1) 4,826 I By PropertyFirst, LLC (5) (6) Common Stock 06/12/2006   C   46,187 A (1) 57,734 I By LoopNet Holdings LLC (6) (7) Common Stock 06/12/2006   C   1,182,926 A (1) 1,182,926 D (3)   Common Stock 06/12/2006   C   36,586 A (1) 36,586 D (6)   Common Stock 06/12/2006   M   576,306 (8) A $ 0.308 1,759,232 D (3)   Common Stock 06/12/2006   M   17,823 (9) A $ 0.308 54,409 D (6)

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
Series A Preferred Stock	(1)	06/12/2006		C			124,850	(1)	(1)	Common Stock	124,850	$ 0	0	I	By PropertyFirst, LLC (2) (3)
Series A Preferred Stock	(1)	06/12/2006		C			900,419	(1)	(1)	Common Stock	900,419	$ 0	0	I	By LoopNet Holdings LLC (3) (4)
Series A Preferred Stock	(1)	06/12/2006		C			3,861	(1)	(1)	Common Stock	3,861	$ 0	0	I	By PropertyFirst, LLC (5) (6)
Series A Preferred Stock	(1)	06/12/2006		C			46,187	(1)	(1)	Common Stock	46,187	$ 0	0	I	By LoopNet Holdings LLC (6) (7)
Series C Preferred Stock	(1)	06/12/2006		C			1,182,926	(1)	(1)	Common Stock	1,182,926	$ 0	0	D (3)
Series C Preferred Stock	(1)	06/12/2006		C			36,586	(1)	(1)	Common Stock	36,586	$ 0	0	D (6)
Series C Preferred Stock Warrants (right to buy)	$ 0.308	06/12/2006		C			591,462	11/29/2001	11/29/2006	Series C Preferred Stock	591,462	$ 0	0	D (3)
Series C Preferred Stock Warrants (right to buy)	$ 0.308	06/12/2006		C			18,292	11/29/2001	11/29/2006	Series C Preferred Stock	18,292	$ 0	0	D (6)
Common Stock Warrants (right to buy)	$ 0.308	06/12/2006		C		591,462		11/29/2001	11/29/2006	Common Stock	591,462	$ 0	591,462	D (3)
Common Stock Warrants (right to buy)	$ 0.308	06/12/2006		C		18,292		11/29/2001	11/29/2006	Common Stock	18,292	$ 0	18,292	D (6)
Common Stock Warrants (right to buy)	$ 0.308	06/12/2006		M			591,462 (8)	11/29/2001	11/29/2006	Common Stock	591,462 (8)	$ 0	0	D (3)
Common Stock Warrants (right to buy)	$ 0.308	06/12/2006		M			18,292 (9)	11/29/2001	11/29/2006	Common Stock	18,292 (9)	$ 0	0	D (6)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
TRINITY VENTURES VI L P 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Trinity VI Side-By-Side Fund, L.P. 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Trinity TVL VI, LLC 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Fenton Noel J 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025	X	X
ORR LAWRENCE K 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
SHENNAN JAMES G JR 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Francis Tod H 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
TVL Management CORP 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Wang Fred 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X
Tai Augustus O 3000 SAND HILL ROAD BUILDING 4, SUITE 160 MENLO PARK, CA 94025		X

Signatures

/s/ Maria T. Valles, Attorney-in-Fact		07/11/2006
**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 Issuer's Preferred Stock automatically converted into Common Stock on a 1-to-1 basis upon the closing of the Issuer's initial public offering.
(2)	Represents shares held by PropertyFirst, LLC through which Trinity Ventures VI, L.P. holds the majority of the voting powers through the operating agreement of PropertyFirst, LLC.
(3)	The shares owned by Trinity Ventures VI, L.P. are under common control with Trinity VI Side-By-Side Fund, L.P. Trinity TVL VI, LLC is the general partner of Trinity Ventures VI, L.P. and Trinity VI Side-By-Side Fund, L.P. Noel J. Fenton, Lawrence K. Orr, James G. Shennan, Jr., Tod H. Francis, Fred Wang, Augustus O. Tai and TVL Management Corporation are managing members of Trinity TVL VI, LLC. Each member of the group disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
(4)	Represents shares held by LoopNet Holdings LLC through which Trinity Ventures VI, L.P. holds the majority of the voting powers through the operating agreement of LoopNet Holdings LLC.
(5)	Represents shares held by PropertyFirst, LLC through which Trinity VI Side-By-Side Fund, L.P. holds the majority of the voting powers through the operating agreement of PropertyFirst, LLC.
(6)	The shares owned by Trinity VI Side-By-Side Fund, L.P. are under common control with Trinity Ventures VI, L.P. Trinity TVL VI, LLC is the general partner of Trinity VI Side-By-Side Fund, L.P. and Trinity Ventures VI, L.P. Noel J. Fenton, Lawrence K. Orr, James G. Shennan, Jr., Tod H. Francis, Fred Wang, Augustus O. Tai and TVL Management Corporation are managing members of Trinity TVL VI, LLC. Each member of the group disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein.
(7)	Represents shares held by LoopNet Holdings LLC through which Trinity VI Side-By-Side Fund, L.P. holds the majority of the voting powers through the operating agreement of LoopNet Holdings LLC.
(8)	Trinity Ventures VI, L.P. converted its warrant into common stock pursuant to a provision in the stock purchase warrant under which the issuer withheld 15,156 shares in payment of the exercise price, based on a fair market value of $12.00 on the date of conversion.
(9)	Trinity VI Side-By-Side Fund, L.P. converted its warrant into common stock pursuant to a provision in the stock purchase warrant under which the issuer withheld 469 shares in payment of the exercise price, based on a fair market value of $12.00 on the date of conversion.
Remarks: This amendment is being filed to reflect that Reporting Person is no longer subject to Section 16 as of the date of the original filing.

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