CUSIP No. |
85528P 10 8 |
Page | 2 |
of | 11 pages |
1 | NAMES OF REPORTING PERSONS. I.R.S. Identification Nos. of above persons (entities only). Matrix Partners VI, L.P. (04-3496468) |
||||
2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) |
||||
(a) o | |||||
(b) þ1 | |||||
3 | SEC USE ONLY | ||||
4 | CITIZENSHIP OR PLACE OF ORGANIZATION | ||||
Delaware | |||||
5 | SOLE VOTING POWER | ||||
NUMBER OF | -4,785,420-2 | ||||
SHARES | 6 | SHARED VOTING POWER | |||
BENEFICIALLY | |||||
OWNED BY | | ||||
EACH | 7 | SOLE DISPOSITIVE POWER | |||
REPORTING | |||||
PERSON | -4,785,420-2 | ||||
WITH: | 8 | SHARED DISPOSITIVE POWER | |||
| |||||
9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | ||||
-4,785,420-2 | |||||
10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) | ||||
o | |||||
11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | ||||
6.82%3 | |||||
12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | ||||
PN |
CUSIP No. |
85528P 10 8 |
Page | 3 |
of | 11 pages |
1 | NAMES OF REPORTING PERSONS. I.R.S. Identification Nos. of above persons (entities only). Matrix VI Parallel Partnership-A, L.P. (04-3510156) |
||||
2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) |
||||
(a) o | |||||
(b) þ4 | |||||
3 | SEC USE ONLY | ||||
4 | CITIZENSHIP OR PLACE OF ORGANIZATION | ||||
Delaware | |||||
5 | SOLE VOTING POWER | ||||
NUMBER OF | -1,605,446-5 | ||||
SHARES | 6 | SHARED VOTING POWER | |||
BENEFICIALLY | |||||
OWNED BY | | ||||
EACH | 7 | SOLE DISPOSITIVE POWER | |||
REPORTING | |||||
PERSON | -1,605,446-5 | ||||
WITH: | 8 | SHARED DISPOSITIVE POWER | |||
| |||||
9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | ||||
-1,605,446-5 | |||||
10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) | ||||
o | |||||
11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | ||||
2.29%6 | |||||
12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | ||||
PN |
CUSIP No. |
85528P 10 8 |
Page | 4 |
of | 11 pages |
1 | NAMES OF REPORTING PERSONS. I.R.S. Identification Nos. of above persons (entities only). Matrix VI Parallel Partnership-B, L.P. (04-3510157) |
||||
2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) |
||||
(a) o | |||||
(b) þ7 | |||||
3 | SEC USE ONLY | ||||
4 | CITIZENSHIP OR PLACE OF ORGANIZATION | ||||
Delaware | |||||
5 | SOLE VOTING POWER | ||||
NUMBER OF | -547,390-8 | ||||
SHARES | 6 | SHARED VOTING POWER | |||
BENEFICIALLY | |||||
OWNED BY | | ||||
EACH | 7 | SOLE DISPOSITIVE POWER | |||
REPORTING | |||||
PERSON | -547,390-8 | ||||
WITH: | 8 | SHARED DISPOSITIVE POWER | |||
| |||||
9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | ||||
-547,390-8 | |||||
10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) | ||||
o | |||||
11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | ||||
0.78%9 | |||||
12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | ||||
PN |
CUSIP No. |
85528P 10 8 |
Page | 5 |
of | 11 pages |
1 | NAMES OF REPORTING PERSONS. I.R.S. Identification Nos. of above persons (entities only). Matrix VI Management Co., L.L.C. (04-3496466) |
||||
2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) |
||||
(a) o | |||||
(b) þ10 | |||||
3 | SEC USE ONLY | ||||
4 | CITIZENSHIP OR PLACE OF ORGANIZATION | ||||
Delaware | |||||
5 | SOLE VOTING POWER | ||||
NUMBER OF | -6,938,256-11 | ||||
SHARES | 6 | SHARED VOTING POWER | |||
BENEFICIALLY | |||||
OWNED BY | | ||||
EACH | 7 | SOLE DISPOSITIVE POWER | |||
REPORTING | |||||
PERSON | -6,938,256-11 | ||||
WITH: | 8 | SHARED DISPOSITIVE POWER | |||
| |||||
9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | ||||
-6,938,256-11 | |||||
10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) | ||||
o | |||||
11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | ||||
9.90%12 | |||||
12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | ||||
OO |
CUSIP No. |
85528P 10 8 |
Page | 6 |
of | 11 pages |
1 | NAMES OF REPORTING PERSONS. I.R.S. Identification Nos. of above persons (entities only). Timothy A. Barrows |
||||
2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) |
||||
(a) o | |||||
(b) þ13 | |||||
3 | SEC USE ONLY | ||||
4 | CITIZENSHIP OR PLACE OF ORGANIZATION | ||||
United States | |||||
5 | SOLE VOTING POWER | ||||
NUMBER OF | -7,233,433-14 | ||||
SHARES | 6 | SHARED VOTING POWER | |||
BENEFICIALLY | |||||
OWNED BY | | ||||
EACH | 7 | SOLE DISPOSITIVE POWER | |||
REPORTING | |||||
PERSON | -7,233,433-14 | ||||
WITH: | 8 | SHARED DISPOSITIVE POWER | |||
| |||||
9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | ||||
-7,233,433-14 | |||||
10 | CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) | ||||
o | |||||
11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | ||||
10.32%15 | |||||
12 | TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) | ||||
IN |
Item 1(a)
|
Name of Issuer: | |
Starent Networks, Corp. |
Item 1(b)
|
Address of Issuers Principal Executive Offices: | |
30 International Place Tewksbury, MA 01876 |
Item 2(a)
|
Name of Person Filing: | |
The reporting persons are: | ||
Matrix Partners VI, L.P. (Matrix VI) | ||
Matrix VI Parallel Partnership-A, L.P. (Parallel A) | ||
Matrix VI Parallel Partnership-B, L.P. (Parallel B) | ||
Matrix VI Management Co., L.L.C. (Matrix VI MC) | ||
Timothy A. Barrows (Barrows) |
Item 2(b)
|
Address of Principal Business Office or, if None, Residence: | |
The address of each of the reporting persons is: | ||
c/o Matrix Partners 100 Winter Street, Suite 4500 Waltham, MA 02451 |
Item 2(c) | Citizenship: | |||
Matrix VI | Delaware limited partnership | |||
Parallel A | Delaware limited partnership | |||
Parallel B | Delaware limited partnership | |||
Matrix VI MC | Delaware limited liability company | |||
Barrows | United States citizen |
Item 2(d)
|
Title of Class of Securities: | |
This Schedule 13G report relates to the Common Stock, par value $0.001 per share (the Common Stock), of Starent Networks, Corp. |
Item 2(e)
|
CUSIP Number: | |
85528P 10 8 |
Item 3
|
Description of Person Filing: | |
Not applicable. |
Page 7 of 11 pages
Item 4 | Ownership: | |||
(a) | Amount Beneficially Owned: | |||
As of December 31, 2008: (i) Matrix VI was the record holder of 4,785,420 shares of Common Stock (the Matrix VI Shares); (ii) Parallel A was the record holder of 1,605,446 shares of Common Stock (the Parallel A Shares); (iii) Parallel B was the record holder of 547,390 shares of Common Stock (the Parallel B Shares); (iv) Matrix VI MC was the record holder of 0 shares of common stock; (Matrix VI US MC); and (v) Barrows was the record or beneficial holder of 295,177 shares of common stock (the Barrows Shares). | ||||
Matrix VI MC, is the general partner of each of Matrix VI, Parallel A and Parallel B, and has sole voting and dispositive power of the Matrix VI Shares, Parallel A Shares, and Parallel B Shares. | ||||
Barrows as managing member of Matrix VI MC, has sole voting and dispositive power of the Matrix VI shares, Parallel A Shares, and the Parallel B Shares. Barrows has sole power to vote and dispose of 295,177 common shares and options: 159,791 shares and options held by Barrows (91,055 shares of common stock, 66,666 shares of restricted common stock, and options to purchase 2,120 shares of common stock (exercisable on or within 60 days of the Date of Event of this Schedule 13G filing); and 135,386 shares (Weston Shares) held by Weston VI & Co. LLC as nominee for Barrows (as part of a total 1,125,977 shares held by Weston VI). | ||||
(b) | Percent of Class: | |||||
Matrix VI: | 6.82 | % | ||||
Parallel A: | 2.29 | % | ||||
Parallel B: | 0.78 | % | ||||
Matrix VI MC: | 9.90 | % | ||||
Barrows: | 10.32 | % | ||||
(c) | Number of Shares as to which the Person has: |
NUMBER OF SHARES | ||||||||||||||||
Reporting Person | (i) | (ii) | (iii) | (iv) | ||||||||||||
Matrix VI |
4,785,420 | 0 | 4,785,420 | 0 | ||||||||||||
Parallel A |
1,605,446 | 0 | 1,605,446 | 0 | ||||||||||||
Parallel B |
547,390 | 0 | 547,390 | 0 | ||||||||||||
Matrix VI MC |
6,938,256 | 0 | 6,938,256 | 0 | ||||||||||||
Barrows |
7,233,433 | 0 | 7,233,433 | 0 |
(i) | Sole power to vote or direct the vote | |
(ii) | Shared power to vote or to direct the vote | |
(iii) | Sole power to dispose or to direct the disposition of | |
(iv) | Shared power to dispose or to direct the disposition of |
Page 8 of 11 pages
Item 5
|
Ownership of Five Percent or Less of a Class: | |
If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following o. |
Item 6
|
Ownership of More than Five Percent on Behalf of Another Person: | |
Not applicable. |
Item 7
|
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person: | |
Not applicable. |
Item 8
|
Identification and Classification of Members of the Group: | |
Each of the Reporting Persons expressly disclaims membership in a Group as defined in Rule 13d-1(b)(ii)(J). |
Item 9
|
Notice of Dissolution of Group: | |
Not applicable. |
Item 10
|
Certification: | |
Not applicable. | ||
This Schedule 13G is not filed pursuant to Rule 13d-1(b) or Rule 13d-1(c). |
Page 9 of 11 pages
Matrix Partners VI, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Parallel Partnership-A, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Parallel Partnership-B, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Management Co., L.L.C. | ||||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
/s/ Timothy A. Barrows | ||||||||
Timothy A. Barrows |
Page 10 of 11 pages
Matrix Partners VI, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Parallel Partnership-A, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Parallel Partnership-B, L.P. | ||||||||
By: | Matrix VI Management Co., L.L.C., Its General Partner | |||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
Matrix VI Management Co., L.L.C. | ||||||||
By: | /s/ Timothy A. Barrows | |||||||
Timothy A. Barrows, Authorized Member | ||||||||
/s/ Timothy A. Barrows | ||||||||
Timothy A. Barrows |
Page 11 of 11 pages