Parallax Volatility Advisers’s Stamps.com, Inc. STMP Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q1	–	Sell	-88,000	Closed	-$17.3M	–	2384
2020 Q4	$17.3M	Buy	88,000 +29,000	+49%	+$6.37M	0.02%	567
2020 Q3	$14.2M	Buy	59,000 +50,900	+628%	+$12.1M	0.01%	839
2020 Q2	$1.49M	Buy	8,100 +6,000	+286%	+$1.03M	﹤0.01%	1573
2020 Q1	$273K	Sell	2,100 -40,700	-95%	-$4.27M	﹤0.01%	1913
2019 Q4	$3.58M	Hold	42,800	–	–	﹤0.01%	1033
2019 Q3	$3.19M	Sell	42,800 -41,600	-49%	-$2.44M	﹤0.01%	968
2019 Q2	$3.82M	Buy	84,400 +12,000	+17%	+$688K	﹤0.01%	828
2019 Q1	$5.89M	Buy	72,400 +72,200	+36,100%	+$10.2M	0.01%	639
2018 Q4	$31K	Buy	+200	New	+$35.6K	﹤0.01%	2333
2018 Q2	–	Sell	-70,000	Closed	-$14.1M	–	4027
2018 Q1	$14.1M	Buy	+70,000	New	+$13.7M	0.02%	312
2017 Q2	–	Sell	-2,100	Closed	-$249K	–	5051
2017 Q1	$249K	Buy	2,100 +100	+5%	+$12.4K	﹤0.01%	1852
2016 Q4	$229K	Sell	2,000 -4,000	-67%	-$416K	﹤0.01%	1830
2016 Q3	$567K	Buy	+6,000	New	+$520K	﹤0.01%	1457
2016 Q2	–	Sell	-7,500	Closed	-$796K	–	4344
2016 Q1	$796K	Buy	7,500 +5,300	+241%	+$542K	﹤0.01%	1277
2015 Q4	$242K	Buy	+2,200	New	+$202K	﹤0.01%	1818
2015 Q3	–	Sell	-400	Closed	-$29K	–	5346
2015 Q2	$29K	Sell	400 -300	-43%	-$20.6K	﹤0.01%	2772
2015 Q1	$47K	Sell	700 -7,600	-92%	-$405K	﹤0.01%	3062
2014 Q4	$398K	Buy	8,300 +7,900	+1,975%	+$330K	﹤0.01%	2235
2014 Q3	$13K	Sell	400 -2,700	-87%	-$89.3K	﹤0.01%	3841
2014 Q2	$104K	Buy	3,100 +300	+11%	+$9.77K	﹤0.01%	2471
2014 Q1	$94K	Buy	2,800 +1,200	+75%	+$45.1K	﹤0.01%	1919
2013 Q4	$67K	Buy	1,600 +1,000	+167%	+$44.8K	﹤0.01%	2072
2013 Q3	$28K	Hold	600	–	–	﹤0.01%	2111
2013 Q2	$24K	Buy	+600	New	+$20K	﹤0.01%	1928