*
|
The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.
|
CUSIP No. 33830X 104
|
Page 2 of 17 Pages
|
1.
|
Name of Reporting Persons
Advanced Technology Ventures VI, L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by Advanced Technology Ventures VI, L.P. (“ATV VI”), Advanced Technology Ventures VII, L.P. (“ATV VII”), Advanced Technology Ventures VII (B), L.P. (“ATV VII-B”), Advanced Technology Ventures VII(C), L.P. (“ATV VII-C”), ATV Entrepreneurs VI, L.P. (“ATVE VI”), ATV Entrepreneurs VII, L.P. (“ATVE VII”), ATV Alliance 2003, L.P. (“ATV Alliance”), ATV Associates VI, L.L.C. (the general partner of ATV VI and ATVE VI) (“ATVA VI”), ATV Associates VII, L.L.C. (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII) (“ATVA VII”), and ATV Alliance Associates, L.L.C. (the general partner of ATV Alliance) (“ATVAA” and collectively with ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI and ATVA VII, the “ATV Entities”). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Issuer’s
public offering in January 2015 (the “Public Offering”), as set forth in the Issuer’s prospectus supplement dated
January 6, 2015 filed with the Securities and Exchange Commission (“SEC”) pursuant to Rule 424(b)(5) under the Securities
Act of 1933, as amended (the “Act”), on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
3 of 17 Pages
|
1.
|
Name of Reporting Persons
Advanced Technology Ventures VII, L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering,
as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under
the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
4 of 17 Pages
|
1.
|
Name of Reporting Persons
Advanced Technology Ventures VII (B), L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering,
as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under
the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
5 of 17 Pages
|
1.
|
Name of Reporting Persons
Advanced Technology Ventures VII(C), L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering,
as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under
the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
6 of 17 Pages
|
1.
|
Name of Reporting Persons
ATV Entrepreneurs VI, L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
7 of 17 Pages
|
1.
|
Name of Reporting Persons
ATV
Entrepreneurs VII, L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page 8 of 17 Pages
|
1.
|
Name of Reporting Persons
ATV
Alliance 2003, L.P.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page 9 of 17 Pages
|
1.
|
Name of Reporting Persons
ATV
Associates VI, L.L.C.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page
10 of 17 Pages |
1.
|
Name of Reporting Persons
ATV
Associates VII, L.L.C.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
|
3
|
This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
|
CUSIP No. 33830X 104
|
Page 11 of 17 Pages
|
1.
|
Name of Reporting Persons
ATV
Alliance Associates, L.L.C.
|
|||||
2.
|
Check the Appropriate Box if a Member of a Group (See Instructions)
(a) ☐ (b) ☒1
|
|||||
3.
|
SEC USE ONLY
|
|||||
4.
|
Citizenship or Place of Organization
Delaware
|
|||||
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With: |
|
5.
|
|
Sole Voting Power
0
|
||
|
6.
|
|
Shared Voting Power
1,053,6822
|
|||
|
7.
|
|
Sole Dispositive Power
0
|
|||
|
8.
|
|
Shared Dispositive Power
1,053,6822
|
|||
9.
|
Aggregate Amount Beneficially Owned by Each Reporting Person
1,053,6822
|
|||||
10.
|
Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
|
|||||
11.
|
Percent of Class Represented by Amount in Row (9)
4.2%3
|
|||||
12.
|
Type of Reporting Person (See Instructions)
PN
|
1
|
This Schedule 13G is filed by ATV VI, ATV VII, ATV VII-B, ATV VII-C, ATVE VI, ATVE VII, ATV Alliance, ATVA VI (the general partner of ATV VI and ATVE VI), ATVA VII (the general partner of ATV VII, ATV VII-B, ATV VII-C and ATVE VII), and ATVAA (the general partner of ATV Alliance). The ATV Entities expressly disclaim status as a “group” for purposes of this Schedule 13G.
|
2
|
Consists of (i) 136,330 shares of common stock owned by ATV VI, (ii) 850,190 shares of common stock owned by ATV VII, (iii) 34,116 shares of common stock owned by ATV VII-B, (iv) 16,396 shares of common stock owned by ATV VII-C, (v) 5,099 shares of common stock owned by ATVE VII, (vi) 8,699 shares of common stock owned by ATVE VI and (vii) 2,852 shares of common stock owned by ATV Alliance.
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3
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This percentage is calculated based upon 24,938,566 shares of the Issuer’s common stock outstanding as of the closing of the Public Offering, as set forth in the Issuer’s prospectus supplement dated January 6, 2015 filed with the SEC pursuant to Rule 424(b)(5) under the Act on January 7, 2015.
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CUSIP No. 33830X 104
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Page 12 of 17 Pages
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Item 1.
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(a)
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Name of Issuer
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(b)
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Address of Issuer’s Principal Executive Offices
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Item 2.
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(a)
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Name of Person Filing
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(b)
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Address of Principal Business Office or, if none, Residence
|
|
500 Boylston Street, Suite 1380, Boston, Massachusetts 02116
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CUSIP No. 33830X 104
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Page
13 of 17 Pages
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(c)
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Citizenship
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(d)
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Title of Class of Securities
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(e)
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CUSIP Number
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Item 3.
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If this statement is filed pursuant to §§240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filing is a:
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Item 4.
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Ownership
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Advanced Technology Ventures VI, L.P.
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1,053,682(1)
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Advanced Technology Ventures VII, L.P
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1,053,682(1)
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Advanced Technology Ventures VII (B), L.P.
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1,053,682(1)
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Advanced Technology Ventures VII(C), L.P.
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1,053,682(1)
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ATV Entrepreneurs VII, L.P.
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1,053,682(1)
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ATV Entrepreneurs VI, L.P.
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1,053,682(1)
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ATV Alliance 2003, L.P.
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1,053,682(1)
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ATV Associates VI, L.L.C.
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1,053,682(1)
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ATV Associates VII, L.L.C.
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1,053,682(1)
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ATV Alliance Associates, L.L.C.
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1,053,682(1)
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Advanced Technology Ventures VI, L.P.
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4.2%
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Advanced Technology Ventures VII, L.P
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4.2%
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Advanced Technology Ventures VII (B), L.P.
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4.2%
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Advanced Technology Ventures VII(C), L.P.
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4.2%
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ATV Entrepreneurs VII, L.P.
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4.2%
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ATV Entrepreneurs VI, L.P.
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4.2%
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ATV Alliance 2003, L.P.
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4.2%
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ATV Associates VI, L.L.C.
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4.2%
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ATV Associates VII, L.L.C.
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4.2%
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ATV Alliance Associates, L.L.C.
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4.2%
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CUSIP No. 33830X 104
|
Page 14 of 17 Pages
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Advanced Technology Ventures VI, L.P.
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0
|
|
Advanced Technology Ventures VII, L.P
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0
|
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Advanced Technology Ventures VII (B), L.P.
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0
|
|
Advanced Technology Ventures VII(C), L.P.
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0
|
|
ATV Entrepreneurs VII, L.P.
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0
|
|
ATV Entrepreneurs VI, L.P.
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0
|
|
ATV Alliance 2003, L.P.
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0
|
|
ATV Associates VI, L.L.C.
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0
|
|
ATV Associates VII, L.L.C.
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0
|
|
ATV Alliance Associates, L.L.C.
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0
|
Advanced Technology Ventures VI, L.P.
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1,053,682(1)
|
|
Advanced Technology Ventures VII, L.P
|
1,053,682(1)
|
|
Advanced Technology Ventures VII (B), L.P.
|
1,053,682(1)
|
|
Advanced Technology Ventures VII(C), L.P.
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1,053,682(1)
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|
ATV Entrepreneurs VII, L.P.
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1,053,682(1)
|
|
ATV Entrepreneurs VI, L.P.
|
1,053,682(1)
|
|
ATV Alliance 2003, L.P.
|
1,053,682(1)
|
|
ATV Associates VI, L.L.C.
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1,053,682(1)
|
|
ATV Associates VII, L.L.C.
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1,053,682(1)
|
|
ATV Alliance Associates, L.L.C.
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1,053,682(1)
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Advanced Technology Ventures VI, L.P.
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0
|
|
Advanced Technology Ventures VII, L.P
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0
|
|
Advanced Technology Ventures VII (B), L.P.
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0
|
|
Advanced Technology Ventures VII(C), L.P.
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0
|
|
ATV Entrepreneurs VII, L.P.
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0
|
|
ATV Entrepreneurs VI, L.P.
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0
|
|
ATV Alliance 2003, L.P.
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0
|
|
ATV Associates VI, L.L.C.
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0
|
|
ATV Associates VII, L.L.C.
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0
|
|
ATV Alliance Associates, L.L.C.
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0
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CUSIP No. 33830X 104
|
Page
15 of 17 Pages
|
Advanced Technology Ventures VI, L.P.
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1,053,682(1)
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|
Advanced Technology Ventures VII, L.P
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1,053,682(1)
|
|
Advanced Technology Ventures VII (B), L.P.
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1,053,682(1)
|
|
Advanced Technology Ventures VII(C), L.P.
|
1,053,682(1)
|
|
ATV Entrepreneurs VII, L.P.
|
1,053,682(1)
|
|
ATV Entrepreneurs VI, L.P.
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1,053,682(1)
|
|
ATV Alliance 2003, L.P.
|
1,053,682(1)
|
|
ATV Associates VI, L.L.C.
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1,053,682(1)
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|
ATV Associates VII, L.L.C.
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1,053,682(1)
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|
ATV Alliance Associates, L.L.C.
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1,053,682(1)
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(1)
|
These shares are owned directly as follows: 136,330 shares of common stock are owned by ATV VI, 850,190 shares of common stock are owned by ATV VII, 34,116 shares of common stock are owned by ATV VII-B, 16,396 shares of common stock are owned by ATV VII-C, 5,099 shares of common stock are owned by ATVE VII, 8,699 shares of common stock are owned by ATVE VI, and 2,852 shares of common stock are owned by ATV Alliance.
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||
Item 5.
|
Ownership of Five Percent or Less of a Class
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Item 6.
|
Ownership of More than Five Percent on Behalf of Another Person
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Item 7.
|
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.
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Item 8.
|
Identification and Classification of Members of the Group
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Item 9.
|
Notice of Dissolution of a Group
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Item 10.
|
Certification
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CUSIP No. 33830X 104
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Page 16 of 17 Pages
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Advanced Technology Ventures VI, L.P. | ATV Entrepreneurs VII, L.P. | |||
By: ATV Associates VI, L.L.C., its General Partner |
By:
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ATV Associates VII, L.L.C., its General Partner
|
||
By:
|
/s/ William Wiberg |
By:
|
/s/ Jean George | |
Authorized Signatory
|
Authorized Signatory
|
|||
Advanced Technology Ventures VII, L.P.
|
ATV Alliance 2003, L.P. | |||
By:
|
ATV Associates VII, L.L.C., its General Partner
|
By:
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ATV Alliance Associates, L.L.C., its General Partner
|
|
By:
|
/s/ Jean George |
By:
|
/s/ Jean George | |
Authorized Signatory
|
Authorized Signatory
|
|||
Advanced Technology Ventures VII (B), L.P.
|
ATV Associates VI, L.L.C. | |||
By:
|
ATV Associates VII, L.L.C., its General Partner
|
By:
|
/s/ William Wiberg | |
By:
|
/s/ Jean George |
Authorized Signatory
|
||
Authorized Signatory
|
||||
Advanced Technology Ventures VII(C), L.P.
|
ATV Associates VII, L.L.C.
|
|||
By: |
ATV Associates VI, L.L.C., its General Partner
|
By:
|
/s/ Jean George | |
By:
|
/s/ Jean George |
Authorized Signatory
|
||
Authorized Signatory | ||||
ATV Entrepreneurs VI, L.P.
|
ATV Alliance Associates, L.L.C. | |||
By:
|
ATV Associates VI, L.L.C., its General Partner
|
By:
|
/s/ Jean George | |
By: | /s/ William Wiberg | Authorized Signatory | ||
Authorized Signatory
|
CUSIP No. 33830X 104
|
Page 17 of 17 Pages
|
A:
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Joint
Filing Agreement (Incorporated by reference from Exhibit A to Schedule 13G filed on February 13, 2014).
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