Form 13-F position report

ATYR PHARMA INC

Reported by LORD ABBETT & CO LLC

LIFE CUSIP 002120103 Manager CIK 0000728100

Reported 0 shares, down 108,451 (100.0%) from the prior quarter.

Reported value -100.0%; share count -100.0% vs. the prior quarter.

Reduced
% of reported 13F value 0 This manager · Q1 2016
Shares 0 Quarter-end amount reported
Reported value $0 Fair value at quarter end
Consecutive quarters held 4 Through Q1 2016

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value

Quarterly position history

How this manager's reported quarter-end position changed over time.

0 quarters
Quarterly reported position history for ATYR PHARMA INC held by LORD ABBETT & CO LLC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
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Who else reported the position

50 managers reported ATYR PHARMA INC for Q1 2016.

Managers reporting ATYR PHARMA INC in Q1 2016.
Manager Activity Shares Change % of reported 13F Reported value Tenure
FMR LLC Added 3,551,596 +4,335 < 0.01% $13,993,000 4 qtrs
BAKER BROS ADVISORS LP Reduced 2,137,606 -197,519 0.09% $8,422,000 4 qtrs
PRICE T ROWE ASSOCIATES INC MD Reduced 520,452 -648,555 < 0.01% $2,051,000 4 qtrs
Alyeska Investment Group L P Added 490,750 +181,688 0.02% $1,934,000 4 qtrs
BlackRock Fund Advisors Added 464,476 +20,539 < 0.01% $1,830,000 4 qtrs
Rock Springs Capital Management LP Added 433,496 +18,300 0.14% $1,708,000 4 qtrs
JPMorgan Chase & Co Reduced 372,850 -2,900 < 0.01% $1,469,000 4 qtrs
VANGUARD GROUP INC Added 199,631 +26,712 < 0.01% $787,000 4 qtrs
TANG CAPITAL MANAGEMENT LLC New 190,000 +190,000 0.34% $749,000 1 qtr
Magnetar Financial LLC Reduced 183,806 -2,493 0.01% $724,000 4 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
March 31, 2016
Filed
May 16, 2016
Filing type
13F-HR
Position type
COM

Voting authority reported

No voting-authority amounts were reported for this position. Voting authority is not required for reported call options.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.