A.R.T. Advisors’s VOLCANO CORPORATION COM STK VOLC Stock Holding History

A.R.T. Advisors’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
2015 Q1	–	Sell	-30,376	Closed	-$543K	–	1935
2014 Q4	$543K	Sell	30,376 -90,255	-75%	-$1.08M	0.02%	903
2014 Q3	$1.29M	Buy	120,631 +74,128	+159%	+$1.03M	0.06%	434
2014 Q2	$818K	Buy	46,503 +33,503	+258%	+$610K	0.04%	568
2014 Q1	$256K	Buy	+13,000	New	+$279K	0.01%	1052
2013 Q3	–	Sell	-62,962	Closed	-$1.14M	–	1697
2013 Q2	$1.14M	Buy	+62,962	New	+$1.2M	0.04%	583

Other funds holding VOLC

California Public Employees Retirement System Sacramento, California $162B AUM 25.78% 1-Year Est. Return

A.R.T. Advisors's VOLC Position: Q1 2015 in Review

A.R.T. Advisors sold out of VOLCANO CORPORATION COM STK (VOLC) in Q1 2015, closing a stake of 30,376 shares — an estimated $543K sold.

A.R.T. Advisors first reported a position in VOLC in Q2 2013 and held it in 5 quarters. The position peaked at $1.29M in Q3 2014. 1 fund tracked by Wall St. Rank holds VOLC as of Q1 2015.

A.R.T. Advisors reported no remaining VOLCANO CORPORATION COM STK position as of Q1 2015 after selling out during the quarter.
A.R.T. Advisors sold 30,376 VOLCANO CORPORATION COM STK shares in Q1 2015, an estimated $543K.
A.R.T. Advisors first reported a position in VOLCANO CORPORATION COM STK in Q2 2013 and held it in 5 quarters.
A.R.T. Advisors's VOLCANO CORPORATION COM STK position peaked at $1.29M in Q3 2014.
1 fund tracked by Wall St. Rank held VOLCANO CORPORATION COM STK as of Q1 2015.

Based on A.R.T. Advisors's 13F filing for Q1 2015, filed 15 May 2015.