Form 13-F position report

ENZON PHARMACEUTICALS INC

Reported by CITADEL ADVISORS LLC

ENZN CUSIP 293904108 Manager CIK 0001423053

Reported 0 shares, down 29,174 (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 · Q4 2015
Shares 0 Quarter-end amount reported
Reported value $0 Fair value at quarter end
Consecutive quarters held 3 Through Q4 2015

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 ENZON PHARMACEUTICALS INC held by CITADEL ADVISORS LLC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
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Who else reported the position

49 managers reported ENZON PHARMACEUTICALS INC for Q4 2015.

Managers reporting ENZON PHARMACEUTICALS INC in Q4 2015.
Manager Activity Shares Change % of reported 13F Reported value Tenure
ICAHN CARL C Unchanged 5,904,863 0 0.01% $4,030,000 11 qtrs
RENAISSANCE TECHNOLOGIES LLC Reduced 3,501,585 -38,499 < 0.01% $2,390,000 11 qtrs
BlackRock Institutional Trust Company N A Reduced 2,867,731 -1,911 < 0.01% $1,957,000 11 qtrs
VANGUARD GROUP INC Added 1,477,538 +40,374 < 0.01% $1,008,000 11 qtrs
UBS Group AG Reduced 694,026 -49,181 < 0.01% $474,000 5 qtrs
BLACKROCK ADVISORS LLC Reduced 693,477 -20,846 < 0.01% $473,000 11 qtrs
Connor Clark & Lunn Investment Management Ltd Added 572,321 +23,800 < 0.01% $389,000 8 qtrs
JACOBS LEVY EQUITY MANAGEMENT INC Added 473,708 +116,068 < 0.01% $323,000 11 qtrs
SEIZERT CAPITAL PARTNERS LLC New 414,810 +414,810 < 0.01% $283,000 1 qtr
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM Unchanged 254,200 0 < 0.01% $173,000 11 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
December 31, 2015
Filed
February 12, 2016
Filing type
13F-HR
Position type
Cmn

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.