CIBC Private Wealth Group
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CIBC Private Wealth Group’s Biogen BIIB Stock Holding History

CIBC Private Wealth Group’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
2025
Q4 		$282K Buy
1,604
+415
+35% +$67.8K ﹤0.01% 1045
2025
Q3 		$167K Buy
1,189
+89
+8% +$12K ﹤0.01% 1262
2025
Q2 		$138K Sell
1,100
-62
-5% -$7.72K ﹤0.01% 1267
2025
Q1 		$132K Sell
1,162
-222
-16% -$31.7K ﹤0.01% 1237
2024
Q4 		$209K Sell
1,384
-148
-10% -$25K ﹤0.01% 1143
2024
Q3 		$297K Sell
1,532
-1,039
-40% -$217K ﹤0.01% 1029
2024
Q2 		$586K Sell
2,571
-108
-4% -$23.5K ﹤0.01% 779
2024
Q1 		$575K Sell
2,679
-31
-1% -$7.26K ﹤0.01% 795
2023
Q4 		$701K Buy
2,710
+11
+0.4% +$2.7K ﹤0.01% 724
2023
Q3 		$694K Buy
+2,699
New +$722K ﹤0.01% 680
2023
Q1 		– Sell
-3,554
Closed -$206K – 890
2022
Q4 		$206K Buy
+3,554
New +$1M ﹤0.01% 728
2022
Q2 		– Sell
-1,108
Closed -$233K – 1201
2022
Q1 		$233K Sell
1,108
-266
-19% -$57.8K ﹤0.01% 915
2021
Q4 		$330K Buy
1,374
+4
+0.3% +$1.03K ﹤0.01% 851
2021
Q3 		$388K Sell
1,370
-454
-25% -$149K ﹤0.01% 770
2021
Q2 		$632K Sell
1,824
-15
-0.8% -$4.54K ﹤0.01% 759
2021
Q1 		$514K Buy
1,839
+57
+3% +$15.4K ﹤0.01% 796
2020
Q4 		$436K Sell
1,782
-22
-1% -$5.67K ﹤0.01% 795
2020
Q3 		$512K Buy
+1,804
New +$503K ﹤0.01% 680
2020
Q2 		– Sell
-1,923
Closed -$608K – 613
2020
Q1 		$608K Buy
1,923
+258
+15% +$78.3K ﹤0.01% 581
2019
Q4 		$494K Sell
1,665
-398
-19% -$110K ﹤0.01% 706
2019
Q3 		$480K Sell
2,063
-5,217
-72% -$1.21M ﹤0.01% 692
2019
Q2 		$1.7M Sell
7,280
-68
-0.9% -$15.7K 0.01% 492
2019
Q1 		$1.74M Buy
7,348
+6,619
+908% +$2.08M 0.01% 491
2018
Q4 		$219K Sell
729
-24,269
-97% -$7.75M ﹤0.01% 828
2018
Q3 		$8.83M Buy
24,998
+3,238
+15% +$1.11M 0.03% 310
2018
Q2 		$6.32M Buy
21,760
+1,404
+7% +$395K 0.03% 336
2018
Q1 		$5.57M Sell
20,356
-49
-0.2% -$15.2K 0.02% 341
2017
Q4 		$6.5M Buy
20,405
+3,713
+22% +$1.19M 0.03% 323
2017
Q3 		$5.23M Buy
16,692
+844
+5% +$250K 0.02% 340
2017
Q2 		$4.3M Sell
15,848
-39,412
-71% -$10.4M 0.03% 301
2017
Q1 		$15.1M Sell
55,260
-482
-0.9% -$136K 0.09% 158
2016
Q4 		$15.8M Buy
55,742
+1,820
+3% +$539K 0.1% 145
2016
Q3 		$16.9M Buy
53,922
+1,116
+2% +$331K 0.12% 145
2016
Q2 		$12.8M Buy
52,806
+18,211
+53% +$4.8M 0.09% 169
2016
Q1 		$9.01M Buy
34,595
+21,437
+163% +$5.66M 0.07% 205
2015
Q4 		$4.03M Buy
13,158
+470
+4% +$135K 0.03% 291
2015
Q3 		$3.7M Buy
12,688
+1,586
+14% +$524K 0.03% 294
2015
Q2 		$4.48M Buy
+11,102
New +$4.46M 0.03% 300

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $935B AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

CIBC Private Wealth Group's BIIB Position: Q4 2025 in Review

CIBC Private Wealth Group increased its Biogen (BIIB) stake by 35% in Q4 2025, buying an estimated $67.8K and bringing the position to 1,604 shares worth $282K. The position accounts for ﹤0.01% of the portfolio, ranked #1045.

CIBC Private Wealth Group first reported a position in BIIB in Q2 2015 and has held it in 38 quarters since. The position peaked at $16.9M in Q3 2016. 997 funds tracked by Wall St. Rank hold BIIB as of Q4 2025.

  • CIBC Private Wealth Group held 1,604 shares of Biogen worth $282K as of Q4 2025.
  • CIBC Private Wealth Group bought 415 Biogen shares in Q4 2025, an estimated $67.8K.
  • Biogen made up ﹤0.01% of CIBC Private Wealth Group's portfolio in Q4 2025, its #1045 holding.
  • CIBC Private Wealth Group first reported a position in Biogen in Q2 2015 and has held it in 38 quarters since.
  • CIBC Private Wealth Group's Biogen position peaked at $16.9M in Q3 2016.
  • 997 funds tracked by Wall St. Rank held Biogen as of Q4 2025.

Based on CIBC Private Wealth Group's 13F filing for Q4 2025, filed 12 Feb 2026.