New York State Teachers Retirement System (NYSTRS)’s Biogen BIIB Stock Holding History

New York State Teachers Retirement System (NYSTRS)’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	$20.4M	Buy	111,303 +100	+0.1%	+$18.4K	0.04%	334
2025 Q4	$19.6M	Buy	111,203 +1,009	+0.9%	+$165K	0.04%	349
2025 Q3	$15.4M	Sell	110,194 -455	-0.4%	-$61.5K	0.03%	402
2025 Q2	$13.9M	Buy	110,649 +2,973	+3%	+$370K	0.03%	430
2025 Q1	$14.7M	Sell	107,676 -3,452	-3%	-$493K	0.03%	395
2024 Q4	$17M	Sell	111,128 -6,673	-6%	-$1.13M	0.04%	370
2024 Q3	$22.8M	Sell	117,801 -5,534	-4%	-$1.16M	0.05%	319
2024 Q2	$28.6M	Sell	123,335 -3,484	-3%	-$757K	0.06%	266
2024 Q1	$27.3M	Sell	126,819 -8,630	-6%	-$2.02M	0.06%	286
2023 Q4	$35M	Sell	135,449 -7,609	-5%	-$1.87M	0.08%	226
2023 Q3	$36.8M	Sell	143,058 -11,131	-7%	-$2.98M	0.09%	207
2023 Q2	$43.9M	Sell	154,189 -7,902	-5%	-$2.35M	0.1%	183
2023 Q1	$45.1M	Sell	162,091 -1,607	-1%	-$445K	0.11%	181
2022 Q4	$45.3M	Buy	163,698 +801	+0.5%	+$226K	0.11%	176
2022 Q3	$43.5M	Buy	162,897 +2,085	+1%	+$443K	0.11%	167
2022 Q2	$32.8M	Sell	160,812 -3,995	-2%	-$817K	0.08%	231
2022 Q1	$34.7M	Sell	164,807 -11,306	-6%	-$2.46M	0.07%	249
2021 Q4	$42.3M	Sell	176,113 -7,010	-4%	-$1.8M	0.08%	222
2021 Q3	$51.8M	Sell	183,123 -6,285	-3%	-$2.06M	0.11%	169
2021 Q2	$65.6M	Sell	189,408 -11,632	-6%	-$3.52M	0.14%	139
2021 Q1	$56.2M	Sell	201,040 -30,041	-13%	-$8.1M	0.12%	153
2020 Q4	$56.6M	Sell	231,081 -17,683	-7%	-$4.56M	0.12%	147
2020 Q3	$70.6M	Sell	248,764 -19,871	-7%	-$5.54M	0.17%	117
2020 Q2	$71.9M	Sell	268,635 -24,294	-8%	-$7.3M	0.18%	112
2020 Q1	$92.7M	Sell	292,929 -12,000	-4%	-$3.64M	0.28%	72
2019 Q4	$90.5M	Sell	304,929 -6,900	-2%	-$1.91M	0.21%	99
2019 Q3	$72.6M	Sell	311,829 -829	-0.3%	-$193K	0.18%	112
2019 Q2	$73.1M	Sell	312,658 -18,057	-5%	-$4.17M	0.19%	113
2019 Q1	$78.2M	Buy	330,715 +1,227	+0.4%	+$386K	0.2%	105
2018 Q4	$99.2M	Sell	329,488 -17,093	-5%	-$5.45M	0.28%	74
2018 Q3	$122M	Sell	346,581 -11,850	-3%	-$4.08M	0.29%	73
2018 Q2	$104M	Sell	358,431 -10,310	-3%	-$2.9M	0.25%	78
2018 Q1	$101M	Sell	368,741 -4,779	-1%	-$1.48M	0.25%	84
2017 Q4	$119M	Sell	373,520 -2,900	-0.8%	-$930K	0.28%	76
2017 Q3	$118M	Sell	376,420 -7,954	-2%	-$2.36M	0.29%	72
2017 Q2	$104M	Sell	384,374 -5,970	-2%	-$1.58M	0.27%	80
2017 Q1	$107M	Sell	390,344 -12,971	-3%	-$3.67M	0.27%	75
2016 Q4	$114M	Sell	403,315 -4,861	-1%	-$1.44M	0.3%	70
2016 Q3	$128M	Sell	408,176 -22,788	-5%	-$6.75M	0.34%	57
2016 Q2	$104M	Sell	430,964 -3,526	-0.8%	-$929K	0.27%	80
2016 Q1	$113M	Sell	434,490 -821	-0.2%	-$217K	0.3%	68
2015 Q4	$133M	Sell	435,311 -15,780	-3%	-$4.53M	0.35%	60
2015 Q3	$132M	Sell	451,091 -2,012	-0.4%	-$664K	0.37%	58
2015 Q2	$183M	Sell	453,103 -2,880	-0.6%	-$1.16M	0.48%	43
2015 Q1	$193M	Sell	455,983 -4,600	-1%	-$1.81M	0.49%	42
2014 Q4	$156M	Sell	460,583 -7,997	-2%	-$2.59M	0.4%	52
2014 Q3	$155M	Sell	468,580 -1,005	-0.2%	-$331K	0.41%	48
2014 Q2	$148M	Sell	469,585 -15,434	-3%	-$4.65M	0.38%	52
2014 Q1	$148M	Buy	485,019 +15,768	+3%	+$5.01M	0.39%	53
2013 Q4	$131M	Sell	469,251 -17,061	-4%	-$4.41M	0.34%	60
2013 Q3	$117M	Sell	486,312 -6,867	-1%	-$1.54M	0.32%	63
2013 Q2	$106M	Buy	+493,179	New	+$105M	0.3%	71