BlackRock Fund Advisors’s Prothena Corp PRTA Stock Holding History

BlackRock Fund Advisors’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	$74.5M	Buy	1,515,241 +178,097	+13%	+$9.83M	0.01%	1414
2016 Q3	$80.2M	Buy	1,337,144 +71,287	+6%	+$3.82M	0.02%	1244
2016 Q2	$44.3M	Buy	1,265,857 +16,938	+1%	+$738K	0.01%	1578
2016 Q1	$51.4M	Buy	1,248,919 +113,332	+10%	+$4.44M	0.01%	1438
2015 Q4	$77.3M	Sell	1,135,587 -51,431	-4%	-$3.1M	0.02%	1164
2015 Q3	$53.8M	Buy	1,187,018 +36,812	+3%	+$2.14M	0.01%	1379
2015 Q2	$60.6M	Buy	1,150,206 +78,692	+7%	+$3.11M	0.01%	1403
2015 Q1	$40.9M	Buy	1,071,514 +15,843	+2%	+$406K	0.01%	1647
2014 Q4	$21.9M	Buy	1,055,671 +98,448	+10%	+$2.05M	0.01%	2020
2014 Q3	$21.2M	Buy	957,223 +154,469	+19%	+$3.27M	0.01%	1925
2014 Q2	$18.1M	Buy	802,754 +137,972	+21%	+$3.45M	0.01%	2089
2014 Q1	$25.5M	Buy	664,782 +19,656	+3%	+$634K	0.01%	1867
2013 Q4	$17.1M	Buy	645,126 +304,232	+89%	+$7.63M	0.01%	2074
2013 Q3	$6.9M	Buy	340,894 +35,395	+12%	+$626K	﹤0.01%	2583
2013 Q2	$3.94M	Buy	+305,499	New	+$2.84M	﹤0.01%	2845

Other funds holding PRTA

WIM

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

PAI

Palo Alto Investors Palo Alto, California $724M AUM 96.91% 1-Year Est. Return

BIT

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

AllianceBernstein Nashville, Tennessee $302B AUM 26.44% 1-Year Est. Return

Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return

BlackRock Fund Advisors's PRTA Position: Q4 2016 in Review

BlackRock Fund Advisors increased its Prothena Corp (PRTA) stake by 13% in Q4 2016, buying an estimated $9.83M and bringing the position to 1,515,241 shares worth $74.5M. The position accounts for 0.01% of the portfolio, ranked #1414.

BlackRock Fund Advisors first reported a position in PRTA in Q2 2013 and has held it in 15 quarters since. The position peaked at $80.2M in Q3 2016. 145 funds tracked by Wall St. Rank hold PRTA as of Q4 2016.

BlackRock Fund Advisors held 1,515,241 shares of Prothena Corp worth $74.5M as of Q4 2016.
BlackRock Fund Advisors bought 178,097 Prothena Corp shares in Q4 2016, an estimated $9.83M.
Prothena Corp made up 0.01% of BlackRock Fund Advisors's portfolio in Q4 2016, its #1414 holding.
BlackRock Fund Advisors first reported a position in Prothena Corp in Q2 2013 and has held it in 15 quarters since.
BlackRock Fund Advisors's Prothena Corp position peaked at $80.2M in Q3 2016.
145 funds tracked by Wall St. Rank held Prothena Corp as of Q4 2016.

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