ALLIANCEBERNSTEIN L.P.

Holdings History for BIOGEN INC. - COM (BIIB)

Symbol: BIIB on Nasdaq
Investment type: Equity - Shares of Stock
Class: COM

Shares, Excluding Options vs Price

Value, Excluding Options

Holdings date	Weight	Change	Value $	Shares	Change	Activity %	Price	All Holders
12/31/2024	0.01%	+0%	$27.6M	181K	+1,592	+0.89%	$152.92	Q4 2024
9/30/2024	0.01%	-0.01%	$34.7M	179K	-102,158	-36.3%	$193.84	Q3 2024
6/30/2024	0.02%	+0.01%	$65.2M	281K	+79,398	+39.3%	$231.82	Q2 2024
3/31/2024	0.02%	0%	$43.5M	202K	-27,922	-12.1%	$215.63	Q1 2024
12/31/2023	0.02%	0%	$59.5M	230K	-21,691	-8.62%	$258.77	Q4 2023
9/30/2023	0.03%	+0%	$64.6M	252K	+11,105	+4.62%	$257.01	Q3 2023
6/30/2023	0.03%	-0.01%	$68.5M	240K	-53,124	-18.1%	$284.85	Q2 2023
3/31/2023	0.04%	+0.01%	$81.6M	294K	+50,545	+20.8%	$278.03	Q1 2023
12/31/2022	0.03%	+0%	$67.3M	243K	+10,599	+4.56%	$276.92	Q4 2022
9/30/2022	0.03%	+0%	$62M	232K	+1,801	+0.78%	$267.00	Q3 2022
6/30/2022	0.02%	+0%	$47M	231K	+36,088	+18.6%	$203.94	Q2 2022
3/31/2022	0.02%	+0%	$41M	194K	+782	+0.4%	$210.60	Q1 2022
12/31/2021	0.02%	0%	$46.5M	194K	-43,928	-18.5%	$239.92	Q4 2021
9/30/2021	0.03%	+0%	$67.2M	238K	+7,277	+3.16%	$282.99	Q3 2021
6/30/2021	0.03%	0%	$79.8M	230K	-27,014	-10.5%	$346.27	Q2 2021
3/31/2021	0.03%	0%	$72M	257K	-19,602	-7.08%	$279.75	Q1 2021
12/31/2020	0.03%	+0%	$67.8M	277K	+5,955	+2.2%	$244.86	Q4 2020
9/30/2020	0.04%	0%	$76.9M	271K	-10,691	-3.8%	$283.68	Q3 2020
6/30/2020	0.04%	-0.01%	$75.4M	282K	-35,082	-11.1%	$267.55	Q2 2020
3/31/2020	0.07%	-0.03%	$100M	317K	-113,661	-26.4%	$316.38	Q1 2020
12/31/2019	0.07%	-0.18%	$128M	430K	-1,064,632	-71.2%	$296.73	Q4 2019
9/30/2019	0.22%	-0.03%	$348M	1.5M	-235,507	-13.6%	$232.82	Q3 2019
6/30/2019	0.25%	-0.11%	$405M	1.73M	-773,943	-30.9%	$233.87	Q2 2019
3/31/2019	0.39%	-0.05%	$592M	2.5M	-326,692	-11.5%	$236.38	Q1 2019
12/31/2018	0.63%	-0.06%	$852M	2.83M	-289,916	-9.29%	$300.92	Q4 2018
9/30/2018	0.72%	-0.16%	$1.1B	3.12M	-710,281	-18.5%	$353.31	Q3 2018
6/30/2018	0.78%	-0.04%	$1.11B	3.83M	-193,345	-4.8%	$290.24	Q2 2018
3/31/2018	0.8%	+0.12%	$1.1B	4.02M	+610,098	+17.9%	$273.82	Q1 2018
12/31/2017	0.78%	+0.17%	$1.09B	3.41M	+727,007	+27%	$318.57	Q4 2017
9/30/2017	0.63%	+0.07%	$842M	2.69M	+283,918	+11.8%	$313.12	Q3 2017
6/30/2017	0.51%	-0.11%	$652M	2.4M	-533,572	-18.2%	$271.36	Q2 2017
3/31/2017	0.64%	+0.06%	$803M	2.94M	+294,308	+11.1%	$273.42	Q1 2017
12/31/2016	0.63%	-0.04%	$750M	2.64M	-155,351	-5.55%	$283.58	Q4 2016
9/30/2016	0.74%	-0.1%	$876M	2.8M	-385,877	-12.1%	$313.03	Q3 2016
6/30/2016	0.66%	+0%	$770M	3.18M	+21,307	+0.67%	$241.82	Q2 2016
3/31/2016	0.71%	+0.07%	$823M	3.16M	+334,516	+11.8%	$260.32	Q1 2016
12/31/2015	0.74%	+0.08%	$866M	2.83M	+316,083	+12.6%	$306.35	Q4 2015
9/30/2015	0.66%	+0.18%	$733M	2.51M	+681,357	+37.2%	$291.81	Q3 2015
6/30/2015	0.61%	+0.03%	$740M	1.83M	+101,379	+5.86%	$403.94	Q2 2015
3/31/2015	0.59%	+0.05%	$730M	1.73M	+153,232	+9.72%	$422.24	Q1 2015
12/31/2014	0.45%	-0.03%	$535M	1.58M	-95,328	-5.7%	$339.45	Q4 2014
9/30/2014	0.47%	-0.04%	$553M	1.67M	-144,175	-7.94%	$330.81	Q3 2014
6/30/2014	0.49%	+0.06%	$573M	1.82M	+218,159	+13.7%	$315.31	Q2 2014
3/31/2014	0.42%	-0.13%	$489M	1.6M	-488,711	-23.4%	$305.87	Q1 2014
12/31/2013	0.53%		$584M	2.09M			$279.75	Q4 2013

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Showing 1 to 45 of 45 entries

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.