A.R.T. Advisors’s Stamps.com, Inc. STMP Stock Holding History

A.R.T. Advisors’s Portfolio STMP Stock Details STMP Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2018 Q4	–	Sell	-23,037	Closed	-$5.21M	–	1900
2018 Q3	$5.21M	Buy	+23,037	New	+$5.76M	0.24%	87
2017 Q4	–	Sell	-12,464	Closed	-$2.52M	–	1910
2017 Q3	$2.52M	Buy	+12,464	New	+$2.29M	0.13%	210
2017 Q2	–	Sell	-16,400	Closed	-$1.94M	–	1995
2017 Q1	$1.94M	Buy	16,400 +9,700	+145%	+$1.2M	0.09%	320
2016 Q4	$768K	Buy	6,700 +4,300	+179%	+$447K	0.05%	578
2016 Q3	$226K	Buy	+2,400	New	+$208K	0.07%	450
2016 Q2	–	Sell	-10,543	Closed	-$1.12M	–	1894
2016 Q1	$1.12M	Buy	+10,543	New	+$1.08M	0.05%	539
2015 Q4	–	Sell	-42,143	Closed	-$3.12M	–	1990
2015 Q3	$3.12M	Buy	42,143 +3,368	+9%	+$261K	0.12%	243
2015 Q2	$2.85M	Buy	38,775 +9,109	+31%	+$625K	0.1%	323
2015 Q1	$2M	Sell	29,666 -6,355	-18%	-$338K	0.07%	393
2014 Q4	$1.73M	Buy	+36,021	New	+$1.5M	0.06%	433
2014 Q1	–	Sell	-19,299	Closed	-$812K	–	1804
2013 Q4	$812K	Buy	19,299 +11,046	+134%	+$494K	0.04%	573
2013 Q3	$379K	Sell	8,253 -19,410	-70%	-$813K	0.02%	885
2013 Q2	$1.09M	Buy	+27,663	New	+$924K	0.04%	602

Other funds holding STMP

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

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

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Fidelity Investments

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

SQN Investors Menlo Park, California $12.8M AUM

Disciplined Growth Investors Minneapolis, Minnesota $4.89B AUM 33.85% 1-Year Est. Return

Fred Alger Management New York $22.8B AUM 64.63% 1-Year Est. Return

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

Conestoga Capital Advisors Wayne, Pennsylvania $5.01B AUM 6.26% 1-Year Est. Return

HHR Asset Management Berkeley Heights, New Jersey $552M AUM 15.61% 1-Year Est. Return