Shannon River Fund Management’s American Tower AMT Stock Holding History

Shannon River Fund Management’s Portfolio AMT Stock Details AMT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2016 Q1	–	Sell	-52,000	Closed	-$5.04M	–	31
2015 Q4	$5.04M	Sell	52,000 -128,000	-71%	-$12.5M	0.98%	23
2015 Q3	$15.8M	Hold	180,000	–	–	2.94%	15
2015 Q2	$16.8M	Sell	180,000 -120,000	-40%	-$11.4M	2.14%	19
2015 Q1	$28.2M	Buy	300,000 +145,000	+94%	+$14.1M	3.32%	10
2014 Q4	$15.3M	Sell	155,000 -5,000	-3%	-$491K	1.56%	25
2014 Q3	$15M	Sell	160,000 -150,000	-48%	-$14.3M	1.13%	36
2014 Q2	$27.9M	Sell	310,000 -284,361	-48%	-$24.6M	2.05%	20
2014 Q1	$48.7M	Sell	594,361 -227,639	-28%	-$18.5M	3.31%	14
2013 Q4	$65.6M	Buy	822,000 +197,000	+32%	+$15.3M	4.91%	1
2013 Q3	$46.3M	Sell	625,000 -60,000	-9%	-$4.33M	4.09%	3
2013 Q2	$50.1M	Buy	+685,000	New	+$54.5M	5.99%	1

Other funds holding AMT

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

Fidelity Investments

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

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

Wellington Management Group

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

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

Massachusetts Financial Services

Massachusetts Financial Services Boston, Massachusetts $298B AUM 21.96% 1-Year Est. Return

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

Capital World Investors

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

Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return