William Blair Investment Management

William Blair Investment Management’s Portola Pharmaceuticals, Inc. PTLA Stock Holding History

William Blair Investment Management’s Portfolio PTLA Stock Details PTLA Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q2	–	Sell	-9,999,290	Closed	-$71.3M	–	369
2020 Q1	$71.3M	Buy	9,999,290 +2,750,218	+38%	+$34.3M	0.35%	96
2019 Q4	$173M	Buy	7,249,072 +390,131	+6%	+$10.8M	0.69%	45
2019 Q3	$184M	Buy	6,858,941 +1,861,717	+37%	+$52.3M	0.79%	35
2019 Q2	$136M	Buy	4,997,224 +842,354	+20%	+$26.4M	0.57%	62
2019 Q1	$144M	Buy	4,154,870 +1,222,057	+42%	+$35.3M	0.61%	51
2018 Q4	$57.2M	Buy	2,932,813 +1,110,765	+61%	+$22.8M	0.28%	97
2018 Q3	$48.5M	Buy	+1,822,048	New	+$59.5M	0.17%	152

Other funds holding PTLA

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

BlackRock New York $5.7T AUM 30.48% 1-Year Est. Return

Magnetar Financial Evanston, Illinois $9.83B AUM 190.64% 1-Year Est. Return

Goldman Sachs New York $761B AUM 31.28% 1-Year Est. Return

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

Omni Partners London, United Kingdom $2.02B AUM 126.33% 1-Year Est. Return

Water Island Capital New York $750M AUM 107.59% 1-Year Est. Return

Alpine Associates Management Palm Beach, Florida $1.7B AUM 97.55% 1-Year Est. Return

Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return

Versor Investments New York $40.8M AUM 93.59% 1-Year Est. Return