BlackRock Institutional Trust’s Prothena Corp PRTA Stock Holding History

BlackRock Institutional Trust’s Portfolio PRTA Stock Details PRTA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q4	$42.9M	Sell	872,281 -3,486	-0.4%	-$192K	0.01%	1444
2016 Q3	$52.5M	Buy	875,767 +26,842	+3%	+$1.44M	0.01%	1269
2016 Q2	$29.7M	Buy	848,925 +2,227	+0.3%	+$97K	﹤0.01%	1581
2016 Q1	$34.9M	Buy	846,698 +75,385	+10%	+$2.95M	0.01%	1455
2015 Q4	$52.5M	Buy	771,313 +3,663	+0.5%	+$221K	0.01%	1205
2015 Q3	$34.8M	Buy	767,650 +130,263	+20%	+$7.59M	0.01%	1459
2015 Q2	$33.6M	Buy	637,387 +93,366	+17%	+$3.68M	0.01%	1561
2015 Q1	$20.7M	Buy	544,021 +100,053	+23%	+$2.57M	﹤0.01%	1902
2014 Q4	$9.22M	Buy	443,968 +130,888	+42%	+$2.73M	﹤0.01%	2412
2014 Q3	$6.94M	Buy	313,080 +28,168	+10%	+$597K	﹤0.01%	2531
2014 Q2	$6.42M	Buy	284,912 +111,315	+64%	+$2.78M	﹤0.01%	2658
2014 Q1	$6.65M	Buy	173,597 +7,504	+5%	+$242K	﹤0.01%	2655
2013 Q4	$4.41M	Buy	166,093 +7,079	+4%	+$178K	﹤0.01%	2848
2013 Q3	$3.22M	Buy	159,014 +39,310	+33%	+$696K	﹤0.01%	2920
2013 Q2	$1.54M	Buy	+119,704	New	+$1.11M	﹤0.01%	3195

Other funds holding PRTA

WIM

Woodford Investment Management London, United Kingdom $310M AUM 17.41% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

BFA

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

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

PAI

Palo Alto Investors Palo Alto, California $654M AUM 77.8% 1-Year Est. Return

AllianceBernstein Nashville, Tennessee $309B AUM 23.92% 1-Year Est. Return

Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return

BlackRock Institutional Trust's PRTA Position: Q4 2016 in Review

BlackRock Institutional Trust reduced its Prothena Corp (PRTA) stake by 0.4% in Q4 2016, selling an estimated $192K and leaving 872,281 shares worth $42.9M. The position accounts for 0.01% of the portfolio, ranked #1444.

BlackRock Institutional Trust first reported a position in PRTA in Q2 2013 and has held it in 15 quarters since. The position peaked at $52.5M in Q4 2015. 145 funds tracked by Wall St. Rank hold PRTA as of Q4 2016.

BlackRock Institutional Trust held 872,281 shares of Prothena Corp worth $42.9M as of Q4 2016.
BlackRock Institutional Trust sold 3,486 Prothena Corp shares in Q4 2016, an estimated $192K.
Prothena Corp made up 0.01% of BlackRock Institutional Trust's portfolio in Q4 2016, its #1444 holding.
BlackRock Institutional Trust first reported a position in Prothena Corp in Q2 2013 and has held it in 15 quarters since.
BlackRock Institutional Trust's Prothena Corp position peaked at $52.5M in Q4 2015.
145 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2016.

Based on BlackRock Institutional Trust's 13F filing for Q4 2016, filed 10 Feb 2017.