ProShare Advisors’s Biogen BIIB Stock Holding History

ProShare Advisors’s Portfolio BIIB Stock Details BIIB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$6.59M	Sell	35,926 -5,570	-13%	-$1.03M	0.01%	455
2025 Q4	$7.3M	Sell	41,496 -155,668	-79%	-$25.4M	0.01%	402
2025 Q3	$27.6M	Sell	197,164 -41,394	-17%	-$5.6M	0.06%	246
2025 Q2	$30M	Buy	238,558 +13,903	+6%	+$1.73M	0.06%	245
2025 Q1	$30.7M	Buy	224,655 +26,329	+13%	+$3.76M	0.07%	214
2024 Q4	$30.3M	Buy	198,326 +29,294	+17%	+$4.94M	0.07%	222
2024 Q3	$32.8M	Buy	169,032 +11,404	+7%	+$2.39M	0.08%	207
2024 Q2	$36.5M	Sell	157,628 -16,372	-9%	-$3.56M	0.1%	174
2024 Q1	$37.5M	Buy	174,000 +29,890	+21%	+$7M	0.1%	175
2023 Q4	$37.3M	Sell	144,110 -24,291	-14%	-$5.97M	0.11%	168
2023 Q3	$43.3M	Buy	168,401 +18,807	+13%	+$5.03M	0.13%	142
2023 Q2	$42.6M	Sell	149,594 -8,329	-5%	-$2.48M	0.12%	140
2023 Q1	$43.9M	Buy	157,923 +16,349	+12%	+$4.52M	0.13%	144
2022 Q4	$39.2M	Sell	141,574 -14,664	-9%	-$4.14M	0.14%	142
2022 Q3	$41.7M	Sell	156,238 -31,426	-17%	-$6.67M	0.16%	125
2022 Q2	$38.3M	Sell	187,664 -93,184	-33%	-$19M	0.13%	148
2022 Q1	$59.1M	Sell	280,848 -14,834	-5%	-$3.23M	0.13%	160
2021 Q4	$70.9M	Buy	295,682 +81,691	+38%	+$21M	0.14%	155
2021 Q3	$60.6M	Buy	213,991 +20,728	+11%	+$6.79M	0.17%	129
2021 Q2	$66.9M	Sell	193,263 -8,014	-4%	-$2.43M	0.2%	123
2021 Q1	$56.3M	Buy	201,277 +23,338	+13%	+$6.29M	0.18%	131
2020 Q4	$43.6M	Buy	177,939 +20,770	+13%	+$5.36M	0.16%	135
2020 Q3	$44.6M	Buy	157,169 +18,580	+13%	+$5.18M	0.21%	115
2020 Q2	$37.1M	Sell	138,589 -408	-0.3%	-$123K	0.2%	119
2020 Q1	$44M	Sell	138,997 -61,284	-31%	-$18.6M	0.32%	93
2019 Q4	$59.4M	Buy	200,281 +20,543	+11%	+$5.7M	0.28%	94
2019 Q3	$41.8M	Sell	179,738 -2,521	-1%	-$587K	0.23%	99
2019 Q2	$42.6M	Sell	182,259 -35,890	-16%	-$8.29M	0.25%	98
2019 Q1	$51.6M	Sell	218,149 -648	-0.3%	-$204K	0.31%	95
2018 Q4	$65.8M	Buy	218,797 +20,103	+10%	+$6.42M	0.46%	73
2018 Q3	$70.2M	Sell	198,694 -32,114	-14%	-$11.1M	0.48%	68
2018 Q2	$67M	Sell	230,808 -23,191	-9%	-$6.52M	0.45%	68
2018 Q1	$69.5M	Buy	253,999 +32,376	+15%	+$10M	0.45%	70
2017 Q4	$70.6M	Buy	221,623 +33,133	+18%	+$10.6M	0.49%	69
2017 Q3	$59M	Buy	188,490 +3,310	+2%	+$980K	0.54%	66
2017 Q2	$50.3M	Buy	185,180 +20,557	+12%	+$5.44M	0.5%	68
2017 Q1	$45M	Sell	164,623 -10,621	-6%	-$3M	0.47%	70
2016 Q4	$49.7M	Buy	175,244 +22,837	+15%	+$6.77M	0.55%	66
2016 Q3	$47.7M	Sell	152,407 -51,839	-25%	-$15.4M	0.67%	61
2016 Q2	$49.4M	Buy	204,246 +1,006	+0.5%	+$265K	0.64%	34
2016 Q1	$52.9M	Sell	203,240 -72,372	-26%	-$19.1M	0.73%	25
2015 Q4	$84.4M	Buy	275,612 +19,262	+8%	+$5.53M	1.02%	14
2015 Q3	$74.8M	Buy	256,350 +38,263	+18%	+$12.6M	1.05%	13
2015 Q2	$88.1M	Sell	218,087 -18,958	-8%	-$7.61M	1.22%	7
2015 Q1	$100M	Sell	237,045 -1,979	-0.8%	-$780K	1.18%	7
2014 Q4	$81.1M	Buy	239,024 +78,873	+49%	+$25.5M	0.95%	16
2014 Q3	$53M	Buy	160,151 +1,340	+0.8%	+$442K	0.7%	20
2014 Q2	$50.1M	Sell	158,811 -30,187	-16%	-$9.09M	0.65%	22
2014 Q1	$57.8M	Buy	188,998 +48,057	+34%	+$15.3M	0.72%	18
2013 Q4	$39.4M	Buy	140,941 +46,366	+49%	+$12M	0.59%	26
2013 Q3	$22.8M	Sell	94,575 -1,625	-2%	-$364K	0.54%	25
2013 Q2	$20.7M	Buy	+96,200	New	+$20.6M	0.41%	44