Latest Institutional Transactions on Biogen Inc. (BIIB)
This table provides information on the latest institutional transactions involving Biogen Inc. (BIIB) stock. The table includes the name of the institution, the type of operation (buy or sell), whether options were involved, the number of shares exchanged, the range of values for the transaction, and the number of shares held by the institution after the transaction has occurred.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Oct 20, 2025
Q3 2025
|
Los Angeles Capital Management LLC
|
BUY
|
- |
147K+ 331.41% |
$18M - $21.9M
|
191K
$32.1M
|
|
|
Oct 20, 2025
Q3 2025
|
Financial Consulate, Inc
|
BUY
|
- |
4New |
$491 - $595
|
4
$670
|
|
|
Oct 20, 2025
Q3 2025
|
Salomon & Ludwin, LLC
|
BUY
|
- |
57New |
$6.99K - $8.48K
|
57
$9.55K
|
|
|
Oct 17, 2025
Q3 2025
|
Indiana Trust & Investment Management CO
|
SELL
|
- |
-10- 50.0% |
$1.23K - $1.49K
|
10
$1.68K
|
|
|
Oct 17, 2025
Q3 2025
|
J. L. Bainbridge & Co., Inc.
|
SELL
|
- |
-119K- 97.57% |
$14.6M - $17.8M
|
2.97K
$497K
|
|
|
Oct 17, 2025
Q3 2025
|
Ethic Inc.
New York, NY |
BUY
|
- |
32.1K+ 257.74% |
$3.93M - $4.77M
|
44.5K
$7.46M
|
|
|
Oct 17, 2025
Q3 2025
|
Private Wealth Management Group, LLC
Princeton, NJ |
BUY
|
- |
7+ 14.89% |
$859 - $1.04K
|
54
$9.05K
|
|
|
Oct 17, 2025
Q3 2025
|
Old North State Wealth Management, LLC
Wilmington, NC |
BUY
|
- |
2.05K+ 10.11% |
$251K - $304K
|
22.3K
$3.73M
|
|
|
Oct 17, 2025
Q3 2025
|
Petros Family Wealth, LLC
Bloomington, MN |
BUY
|
- |
2.11KNew |
$259K - $314K
|
2.11K
$353K
|
|
|
Oct 17, 2025
Q3 2025
|
Petros Family Wealth, LLC
Bloomington, MN |
BUY
|
CALL |
200New |
$24.5K - $29.8K
|
200
$33.5K
|
|
|
Oct 17, 2025
Q3 2025
|
Farmers & Merchants Investments Inc
|
SELL
|
- |
-5- 0.13% |
$613 - $744
|
3.94K
$660K
|
|
|
Oct 16, 2025
Q3 2025
|
Ronald Blue Trust, Inc.
Brentwood, TN |
BUY
|
- |
95+ 8.58% |
$11.7K - $14.1K
|
1.2K
$201K
|
|
|
Oct 16, 2025
Q3 2025
|
Trust CO Of Toledo Na
Holland, OH |
SELL
|
- |
-186- 8.36% |
$22.8K - $27.7K
|
2.04K
$342K
|
|
|
Oct 16, 2025
Q3 2025
|
Richwood Investment Advisors, LLC
|
SELL
|
- |
-1- 0.04% |
$123 - $149
|
2.25K
$376K
|
|
|
Oct 16, 2025
Q3 2025
|
Capital Advisors, Ltd. LLC
|
BUY
|
- |
52+ 28.89% |
$6.38K - $7.74K
|
232
$38.9K
|
|
|
Oct 15, 2025
Q3 2025
|
Plancorp, LLC
|
SELL
|
- |
-11- 0.68% |
$1.35K - $1.64K
|
1.6K
$267K
|
|
|
Oct 15, 2025
Q3 2025
|
Vontobel Holding Ltd.
|
BUY
|
- |
6.54K+ 48.63% |
$802K - $973K
|
20K
$3.35M
|
|
|
Oct 15, 2025
Q3 2025
|
Optas, LLC
|
BUY
|
- |
39+ 2.45% |
$4.78K - $5.8K
|
1.63K
$274K
|
|
|
Oct 15, 2025
Q3 2025
|
Swedbank Ab
Stockholm, V7 |
BUY
|
- |
18.7K+ 8.76% |
$2.3M - $2.79M
|
232K
$38.9M
|
|
|
Oct 15, 2025
Q3 2025
|
Private Trust CO Na
|
SELL
|
- |
-11- 6.63% |
$1.35K - $1.64K
|
155
$26K
|
|
|
Oct 15, 2025
Q3 2025
|
Pensionmark Financial Group, LLC
Santa Barbara, CA |
SELL
|
- |
-56- 0.86% |
$6.87K - $8.34K
|
6.42K
$1.08M
|
|
|
Oct 15, 2025
Q3 2025
|
Harbor Capital Advisors, Inc.
|
BUY
|
- |
57+ 2.54% |
$6.99K - $8.48K
|
2.3K
$385K
|
|
|
Oct 15, 2025
Q3 2025
|
Pacer Advisors, Inc.
Malvern, PA |
BUY
|
- |
131K+ 9.94% |
$16.1M - $19.5M
|
1.45M
$243M
|
|
|
Oct 15, 2025
Q3 2025
|
Bsw Wealth Partners
Boulder, CO |
BUY
|
- |
1.99KNew |
$244K - $296K
|
1.99K
$333K
|
|
|
Oct 15, 2025
Q3 2025
|
Clayton Financial Group LLC
St. Louis, MO |
BUY
|
- |
87New |
$10.7K - $12.9K
|
87
$14.6K
|
|
|
Oct 15, 2025
Q3 2025
|
Cwm, LLC
|
BUY
|
- |
12.7K+ 36.44% |
$1.55M - $1.89M
|
47.5K
$7.95M
|
|
|
Oct 15, 2025
Q3 2025
|
Uncommon Cents Investing LLC
|
BUY
|
- |
10+ 0.37% |
$1.23K - $1.49K
|
2.75K
$461K
|
|
|
Oct 14, 2025
Q3 2025
|
Brighton Jones LLC
|
BUY
|
- |
1.41K+ 27.68% |
$173K - $210K
|
6.51K
$1.09M
|
|
|
Oct 14, 2025
Q3 2025
|
Patton Fund Management, Inc.
|
BUY
|
- |
1.85KNew |
$226K - $275K
|
1.85K
$309K
|
|
|
Oct 14, 2025
Q3 2025
|
Parcion Private Wealth LLC
Bellevue, WA |
BUY
|
- |
1.62KNew |
$199K - $241K
|
1.62K
$271K
|
|
|
Oct 14, 2025
Q3 2025
|
Farther Finance Advisors, LLC
San Francisco, CA |
BUY
|
- |
94+ 9.84% |
$11.5K - $14K
|
1.05K
$176K
|
|
|
Oct 14, 2025
Q3 2025
|
Yousif Capital Management, LLC
|
SELL
|
- |
-2.68K- 13.54% |
$328K - $398K
|
17.1K
$2.86M
|
|
|
Oct 14, 2025
Q3 2025
|
Ifm Investors Pty LTD
|
BUY
|
- |
1.74K+ 4.86% |
$213K - $259K
|
37.5K
$6.28M
|
|
|
Oct 10, 2025
Q3 2025
|
Flputnam Investment Management CO
Portland, ME |
BUY
|
- |
231+ 12.22% |
$28.3K - $34.4K
|
2.12K
$355K
|
|
|
Oct 10, 2025
Q3 2025
|
Wedge Capital Management L L P
|
BUY
|
- |
193KNew |
$23.7M - $28.7M
|
193K
$32.3M
|
|
|
Oct 10, 2025
Q3 2025
|
Tower Trust & Investment CO
Davenport, IA |
BUY
|
- |
5+ 0.17% |
$613 - $744
|
2.9K
$486K
|
|
|
Oct 09, 2025
Q3 2025
|
North Capital, Inc.
Salt Lake City, UT |
BUY
|
- |
1+ 0.86% |
$123 - $149
|
117
$19.6K
|
|
|
Oct 09, 2025
Q3 2025
|
Bay Harbor Wealth Management, LLC
|
BUY
|
- |
1+ 100.0% |
$123 - $149
|
2
$335
|
|
|
Oct 09, 2025
Q3 2025
|
Voya Investment Management LLC
Atlanta, GA |
SELL
|
- |
-6.93K- 9.87% |
$850K - $1.03M
|
63.3K
$10.6M
|
|
|
Oct 09, 2025
Q3 2025
|
Bartlett & Co. Wealth Management LLC
Cincinnati, OH |
BUY
|
- |
18+ 72.0% |
$2.21K - $2.68K
|
43
$7.2K
|
|
|
Oct 08, 2025
Q3 2025
|
Rise Advisors, LLC
|
BUY
|
- |
18+ 12.16% |
$2.21K - $2.68K
|
166
$27.8K
|
|
|
Oct 07, 2025
Q3 2025
|
Proathlete Wealth Management LLC
Boca Raton, FL |
SELL
|
- |
-1- 0.05% |
$123 - $149
|
2.07K
$346K
|
|
|
Oct 07, 2025
Q3 2025
|
Ransom Advisory, LTD
Providence, RI |
BUY
|
- |
90New |
$11K - $13.4K
|
90
$15.1K
|
|
|
Oct 06, 2025
Q3 2025
|
Steph & CO
|
BUY
|
- |
4+ 5.33% |
$491 - $595
|
79
$13.2K
|
|
|
Oct 06, 2025
Q3 2025
|
Heartwood Wealth Advisors LLC
|
BUY
|
- |
50New |
$6.13K - $7.44K
|
50
$8.38K
|
|
|
Oct 03, 2025
Q3 2025
|
West Oak Capital, LLC
|
SELL
|
- |
-20- 44.44% |
$2.45K - $2.98K
|
25
$4.19K
|
|
|
Oct 02, 2025
Q3 2025
|
Breakwater Investment Management
Seattle, WA |
BUY
|
- |
4New |
$491 - $595
|
4
$670
|
|
|
Oct 01, 2025
Q3 2025
|
Everence Capital Management Inc
|
SELL
|
- |
-2.24K- 39.37% |
$275K - $333K
|
3.45K
$578K
|
|
| Q2 2025 | |||||||
|
Dec 18, 2025
Q2 2025
|
Danske Bank A/S
Copenhagen K, G7 |
SELL
|
- |
-8.53K- 13.35% |
$967K - $1.16M
|
55.4K
$9.28M
|
|
|
Nov 21, 2025
Q2 2025
|
Royal Bank Of Canada
Toronto, A6 |
BUY
|
- |
166K+ 50.09% |
$18.8M - $22.4M
|
496K
$83.1M
|
|