Tamarack Capital Management’s VOLCANO CORPORATION COM STK VOLC Stock Holding History

Tamarack Capital Management’s Portfolio VOLC Stock Details VOLC Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2014 Q4	–	Sell	-500,000	Closed	-$5.32M	–	40
2014 Q3	$5.32M	Sell	500,000 -1,518,300	-75%	-$21.1M	1.18%	22
2014 Q2	$33.6M	Buy	2,018,300 +373,300	+23%	+$6.79M	6.86%	3
2014 Q1	$32.4M	Buy	1,645,000 +470,000	+40%	+$10.1M	8.09%	2
2013 Q4	$25.7M	Buy	1,175,000 +630,950	+116%	+$14M	6.08%	5
2013 Q3	$13M	Buy	544,050 +224,607	+70%	+$4.78M	3.45%	7
2013 Q2	$5.79M	Buy	+319,443	New	+$6.11M	3.24%	18

Other funds holding VOLC

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

WIC

Water Island Capital New York $896M AUM 107.59% 1-Year Est. Return

CCM

Camber Capital Management Boston, Massachusetts $1.07B AUM 8.19% 1-Year Est. Return

TAL

TIG Advisors LLC New York $2.16B AUM 72.99% 1-Year Est. Return

Broadfin Capital New York $747M AUM 100.56% 1-Year Est. Return

TCM

TimesSquare Capital Management New York $5.89B AUM 28.74% 1-Year Est. Return

Gabelli Funds Rye, New York $14.8B AUM 32.24% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

BFA

BlackRock Fund Advisors San Francisco, California $542B AUM 18.13% 1-Year Est. Return

BIT

BlackRock Institutional Trust San Francisco, California $675B AUM 16.07% 1-Year Est. Return

Tamarack Capital Management's VOLC Position: Q4 2014 in Review

Tamarack Capital Management sold out of VOLCANO CORPORATION COM STK (VOLC) in Q4 2014, closing a stake of 500,000 shares — an estimated $5.32M sold.

Tamarack Capital Management first reported a position in VOLC in Q2 2013 and held it in 6 quarters. The position peaked at $33.6M in Q2 2014. 141 funds tracked by Wall St. Rank hold VOLC as of Q4 2014.

Tamarack Capital Management reported no remaining VOLCANO CORPORATION COM STK position as of Q4 2014 after selling out during the quarter.
Tamarack Capital Management sold 500,000 VOLCANO CORPORATION COM STK shares in Q4 2014, an estimated $5.32M.
Tamarack Capital Management first reported a position in VOLCANO CORPORATION COM STK in Q2 2013 and held it in 6 quarters.
Tamarack Capital Management's VOLCANO CORPORATION COM STK position peaked at $33.6M in Q2 2014.
141 funds tracked by Wall St. Rank held VOLCANO CORPORATION COM STK as of Q4 2014.

Based on Tamarack Capital Management's 13F filing for Q4 2014, filed 11 Feb 2015.