o |
Rule 13d-1(b)
|
o |
Rule 13d-1(c)
|
x
|
Rule 13d-1(d)
|
CUSIP No. 002120103
|
13G
|
Page 2 of 12 Pages
|
1
|
NAMES OF REPORTING PERSON
|
|||||
Alta Partners VIII, L.P.
|
||||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
|
||||
(b) ý
|
||||||
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
|
1,778,064 (a)
|
|||
6
|
SHARED VOTING POWER
|
-0-
|
||||
7
|
SOLE DISPOSITIVE POWER
|
1,778,064 (a)
|
||||
8
|
SHARED DISPOSITIVE POWER
|
-0-
|
||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||||
1,778,064 (a)
|
||||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
|
|||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
|
|||||
7.5% (b)
|
||||||
12
|
TYPE OF REPORTING PERSON
PN
|
CUSIP No. 002120103
|
13G
|
Page 3 of 12 Pages
|
1
|
NAMES OF REPORTING PERSON
|
|||||
Alta Partners Management VIII, LLC
|
||||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
|
||||
(b) ý
|
||||||
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
|
1,778,064 (c)
|
||||
7
|
SOLE DISPOSITIVE POWER
|
-0-
|
||||
8
|
SHARED DISPOSITIVE POWER
|
1,778,064 (c)
|
||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
|||||
1,778,064 (c)
|
||||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
|
|||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
|
|||||
7.5% (b)
|
||||||
12
|
TYPE OF REPORTING PERSON
OO
|
|||||
(c)
|
APM VIII is the general partner of AP VIII and shares voting and dispositive power over the shares of Common Stock held by AP VIII.
|
CUSIP No. 002120103
|
13G
|
Page 4 of 12 Pages
|
1
|
NAMES OF REPORTING PERSON
|
||||||
Farah Champsi
|
|||||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
|
|||||
(b) ý
|
|||||||
3
|
SEC USE ONLY
|
||||||
4
|
CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
|
||||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE VOTING POWER
|
-0-
|
||||
6
|
SHARED VOTING POWER
|
1,778,064(e)
|
|||||
7
|
SOLE DISPOSITIVE POWER
|
-0-
|
|||||
8
|
SHARED DISPOSITIVE POWER
|
1,778,064 (e)
|
|||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||||
1,778,064 (e)
|
|||||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
|
||||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
|
||||||
7.5% (b)
|
|||||||
12
|
TYPE OF REPORTING PERSON
IN
|
||||||
(e)
|
CChampsi is a managing director of APM VIII and may be deemed to share voting and dispositive control over the 1,778,064 shares of Common Stock held by AP VIII.
|
CUSIP No. 002120103
|
13G
|
Page 5 of 12 Pages
|
1
|
NAMES OF REPORTING PERSON
|
||||||
Daniel Janney
|
|||||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
|
|||||
(b) ý
|
|||||||
3
|
SEC USE ONLY
|
||||||
4
|
CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
|
||||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE VOTING POWER
|
-0-
|
||||
6
|
SHARED VOTING POWER
|
1,778,064 (g)
|
|||||
7
|
SOLE DISPOSITIVE POWER
|
-0-
|
|||||
8
|
SHARED DISPOSITIVE POWER
|
1,778,064 (g)
|
|||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||||
1,778,064 (g)
|
|||||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
|
||||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
|
||||||
7.5% (b)
|
|||||||
12
|
TYPE OF REPORTING PERSON
IN
|
||||||
(g)
|
Janney is a managing director of APM VIII and may be deemed to share voting and dispositive control over the 1,778,064 shares of Common Stock held by AP VIII.
|
CUSIP No. 002120103
|
13G
|
Page 6 of 12 Pages
|
1
|
NAMES OF REPORTING PERSON
|
||||||
Guy Nohra
|
|||||||
2
|
CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
|
(a) o
|
|||||
(b) ý
|
|||||||
3
|
SEC USE ONLY
|
||||||
4
|
CITIZENSHIP OR PLACE OF ORGANIZATION
U.S.A.
|
||||||
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE VOTING POWER
|
-0-
|
||||
6
|
SHARED VOTING POWER
|
1,778,064 (i)
|
|||||
7
|
SOLE DISPOSITIVE POWER
|
-0-
|
|||||
8
|
SHARED DISPOSITIVE POWER
|
1,778,064 (i)
|
|||||
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
|
||||||
1,778,064 (i)
|
|||||||
10
|
CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES *
|
||||||
11
|
PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
|
||||||
7.5% (b)
|
|||||||
12
|
TYPE OF REPORTING PERSON
IN
|
(i)
|
Nohra is a managing director of APM VIII and may be deemed to share voting and dispositive control over the 1,778,064 shares of Common Stock held by AP VIII.
|
CUSIP No. 002120103
|
13G
|
Page 7 of 12 Pages
|
Item 1.
|
(a) |
Name of Issuer:
ATyr Pharma, Inc. ("Issuer")
|
|
(b) |
Address of Issuer's Principal Executive Offices:
3545 Johns Hopkins Court, Suite 250
San Diego, CA 92121
|
Item 2. | ||
(a) |
Name of Person Filing:
Alta Partners VIII, L.P. ("APVIII")
Alta Partners Management VIII, LLC ("APMVIII")
Guy Nohra ("GN")
Daniel Janney ("DJ")
Fara Champsi ("FC")
|
|
(b) |
Address of Principal Business Office:
One Embarcadero Center, Suite 3700
San Francisco, CA 94111
|
(c) |
Citizenship/Place of Organization:
|
||
Entities: | |||
APVIII - Delaware | |||
APMVIII - Delaware | |||
Individuals: | |||
DJ - | United States | ||
GN - | United States | ||
FC - | United States | ||
(d) |
Title of Class of Securities:
Common Stock, $0.001 par value per share
|
||
(e) |
CUSIP Number:
002120103
|
||
Item 3. | Not applicable. |
CUSIP No. 002120103
|
13G
|
Page 8 of 12 Pages
|
Fund Entities
|
Shares Held Directly
|
Sole Voting Power
|
Shared Voting Power
|
Sole Dispositive Power
|
Shared Dispositive Power
|
Beneficial Ownership
|
Percentage of Class
|
APVIII
|
1,778,064
|
0
|
1,778,064
|
0
|
1,778,064
|
1,778,064
|
7.5%
|
APMVIII
|
0
|
0
|
1,778,064
|
0
|
1,778,064
|
1,778,064
|
7.5%
|
DJ
|
0
|
0
|
1,778,064
|
0
|
1,778,064
|
1,778,064
|
7.5%
|
GN
|
0
|
0
|
1,778,064
|
0
|
1,778,064
|
1,778,064
|
7.5%
|
FC
|
0
|
0
|
1,778,064
|
0
|
1,778,064
|
1,778,064
|
7.5%
|
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 5 percent of the class of securities, check the following ¨
|
|
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.
|
Not applicable.
|
|
Item 8.
|
Identification and Classification of Members of the Group
|
No reporting person is a member of a group as defined in Section 240.13d-1(b)(1)(ii)(J) of the Act.
|
|
Item 9.
|
Notice of Dissolution of Group
|
Not applicable.
|
|
Item 10.
|
Certification
|
Not applicable.
|
CUSIP No. 002120103
|
13G
|
Page 9 of 12 Pages
|
CUSIP No. 002120103
|
13G
|
Page 10 of 12 Pages
|
Date:
|
February 12, 2016
|
Alta Partners VIII, L.P. | ||
By: Alta Partners Management VIII, LLC | ||
By:
|
/s/ Daniel Janney | |
Daniel Janney, Managing Director | ||
Alta Partners Management VIII, LLC | ||
By:
|
/s/ Daniel Janney | |
Daniel Janney, Managing Director | ||
/s/ Daniel Janney
|
|
Daniel Janney
|
|
|
/s/ Guy Nohra
|
|
Guy Nohra
|
|
|
/s/ Farah Champsi
|
|
Farah Champsi
|
|
|
CUSIP No. 002120103
|
13G
|
Page 11 of 12 Pages
|
Date:
|
February 12, 2016
|
Alta Partners VIII, L.P. | ||
By: Alta Partners Management VIII, LLC | ||
By:
|
/s/ Daniel Janney | |
Daniel Janney, Managing Director | ||
Alta Partners Management VIII, LLC | ||
By:
|
/s/ Daniel Janney | |
Daniel Janney, Managing Director | ||
/s/ Daniel Janney
|
|
Daniel Janney
|
|
|
/s/ Guy Nohra
|
|
Guy Nohra
|
|
|
/s/ Farah Champsi
|
|
Farah Champsi
|
|
|
CUSIP No. 002120103
|
13G
|
Page 12 of 12 Pages
|