Robeco Institutional Asset Management B.V.

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	0.12%	+0.04%	$62.4M	408K	+133,568	+48.6%	$152.92	Q4 2024
9/30/2024	0.11%	+0.02%	$53.2M	275K	+59,771	+27.8%	$193.84	Q3 2024
6/30/2024	0.11%	-0.01%	$49.8M	215K	-16,579	-7.16%	$231.82	Q2 2024
3/31/2024	0.11%	-0.03%	$49.9M	232K	-62,024	-21.1%	$215.63	Q1 2024
12/31/2023	0.18%	-0.03%	$76M	294K	-48,270	-14.1%	$258.77	Q4 2023
9/30/2023	0.23%	0%	$87.8M	342K	-1,407	-0.41%	$257.01	Q3 2023
6/30/2023	0.26%	-0.01%	$97.8M	343K	-18,230	-5.04%	$284.85	Q2 2023
3/31/2023	0.27%	+0.04%	$100M	361K	+48,290	+15.4%	$278.03	Q1 2023
12/31/2022	0.25%	+0%	$86.7M	313K	+5,341	+1.74%	$276.92	Q4 2022
9/30/2022	0.27%	+0.11%	$82.2M	308K	+126,305	+69.6%	$267.00	Q3 2022
6/30/2022	0.12%	+0%	$37M	182K	+3,915	+2.2%	$203.94	Q2 2022
3/31/2022	0.09%	-0.01%	$37.4M	178K	-13,669	-7.15%	$210.61	Q1 2022
12/31/2021	0.1%	+0.01%	$45.9M	191K	+19,104	+11.1%	$239.93	Q4 2021
9/30/2021	0.11%	+0%	$48.7M	172K	+7,716	+4.69%	$283.00	Q3 2021
6/30/2021	0.13%	-0.09%	$56.9M	164K	-111,144	-40.3%	$346.25	Q2 2021
3/31/2021	0.19%	-0.03%	$77.1M	276K	-48,910	-15.1%	$279.74	Q1 2021
12/31/2020	0.21%	-0.15%	$79.5M	324K	-238,567	-42.4%	$244.86	Q4 2020
9/30/2020	0.49%	+0.14%	$160M	563K	+160,408	+39.8%	$283.68	Q3 2020
6/30/2020	0.37%	+0.13%	$108M	403K	+143,210	+55.2%	$267.54	Q2 2020
3/31/2020	0.33%	+0.05%	$82.1M	259K	+39,407	+17.9%	$316.38	Q1 2020
12/31/2019	0.21%	-0.02%	$65.3M	220K	-17,314	-7.29%	$296.73	Q4 2019
9/30/2019	0.2%	-0.05%	$55.3M	237K	-66,076	-21.8%	$232.84	Q3 2019
6/30/2019	0.25%	-0.12%	$71M	303K	-148,226	-32.8%	$233.87	Q2 2019
3/31/2019	0.39%	+0.07%	$107M	452K	+76,630	+20.4%	$236.38	Q1 2019
12/31/2018	0.51%	+0.01%	$113M	375K	+10,511	+2.88%	$300.69	Q4 2018
9/30/2018	0.51%	-0.07%	$129M	365K	-52,645	-12.6%	$353.31	Q3 2018
6/30/2018	0.55%	-0.02%	$121M	417K	-13,677	-3.17%	$290.24	Q2 2018
3/31/2018	0.55%	+0.18%	$118M	431K	+139,562	+47.9%	$273.82	Q1 2018
12/31/2017	0.48%	+0.23%	$92.8M	291K	+139,529	+91.9%	$318.57	Q4 2017
12/31/2017	0.48%	+0.23%	$92.8M	291K	+139,529	+91.9%	$318.57	Q4 2017
9/30/2017	0.3%	+0%	$47.5M	152K	+116	+0.08%	$313.12	Q3 2017
6/30/2017	0.27%	-0.01%	$41.1M	152K	-4,072	-2.62%	$271.36	Q2 2017
3/31/2017	0.28%	+0.02%	$42.6M	156K	+11,670	+8.1%	$273.42	Q1 2017
12/31/2016	0.32%	-0.16%	$40.8M	144K	-71,763	-33.3%	$283.59	Q4 2016
9/30/2016	0.5%	-0.06%	$67.6M	216K	-25,155	-10.4%	$313.03	Q3 2016
6/30/2016	0.44%	+0.01%	$58.3M	241K	+6,570	+2.8%	$241.81	Q2 2016
3/31/2016	0.49%	+0.09%	$61M	234K	+45,185	+23.9%	$260.32	Q1 2016
12/31/2015	0.5%	+0.09%	$58M	189K	+32,468	+20.7%	$306.35	Q4 2015
9/30/2015	0.35%	0%	$45.7M	157K	-1,109	-0.7%	$291.81	Q3 2015
6/30/2015	0.48%	-0.04%	$63.8M	158K	-11,668	-6.88%	$403.94	Q2 2015
3/31/2015	0.54%	+0.49%	$71.6M	170K	+153,822	+981%	$422.24	Q1 2015
12/31/2014	0.04%	+0.01%	$5.32M	15.7K	+2,908	+22.8%	$339.48	Q4 2014
9/30/2014	0.03%	+0.01%	$4.23M	12.8K	+2,187	+20.7%	$330.88	Q3 2014
6/30/2014	0.02%	+0.01%	$3.34M	10.6K	+2,364	+28.7%	$315.36	Q2 2014
3/31/2014	0.02%	-0.08%	$2.52M	8.22K	-34,055	-80.5%	$305.81	Q1 2014
12/31/2013	0.1%		$11.8M	42.3K			$279.74	Q4 2013

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Showing 1 to 46 of 46 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.