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Bartlett & Co Wealth Management’s Biogen BIIB Stock Holding History

Bartlett & Co Wealth Management’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 		$8.8K Buy
47
+4
+9% +$737 ﹤0.01% 942
2025
Q4 		$7.57K Hold
43
– – ﹤0.01% 959
2025
Q3 		$6.02K Buy
43
+18
+72% +$2.43K ﹤0.01% 983
2025
Q2 		$3.14K Sell
25
-1
-4% -$125 ﹤0.01% 1053
2025
Q1 		$3.56K Sell
26
-114
-81% -$16.3K ﹤0.01% 1023
2024
Q4 		$21.4K Hold
140
– – ﹤0.01% 798
2024
Q3 		$27.1K Hold
140
– – ﹤0.01% 764
2024
Q2 		$32.5K Hold
140
– – ﹤0.01% 742
2024
Q1 		$30.2K Hold
140
– – ﹤0.01% 750
2023
Q4 		$36.5K Hold
140
– – ﹤0.01% 754
2023
Q3 		$36K Hold
140
– – ﹤0.01% 717
2023
Q2 		$39.9K Hold
140
– – ﹤0.01% 710
2023
Q1 		$38.9K Hold
140
– – ﹤0.01% 606
2022
Q4 		$38.8K Hold
140
– – ﹤0.01% 614
2022
Q3 		$37.4K Hold
140
– – ﹤0.01% 612
2022
Q2 		$28.6K Hold
140
– – ﹤0.01% 672
2022
Q1 		$29.5K Buy
+140
New +$30.4K ﹤0.01% 671
2021
Q4 		– Sell
-140
Closed -$39.6K – 457
2021
Q3 		$39.6K Sell
140
-116
-45% -$38K ﹤0.01% 546
2021
Q2 		$88.6K Hold
256
– – ﹤0.01% 429
2021
Q1 		$71.6K Buy
256
+115
+82% +$31K ﹤0.01% 477
2020
Q4 		$34.5K Sell
141
-111
-44% -$28.6K ﹤0.01% 594
2020
Q3 		$71.5K Hold
252
– – ﹤0.01% 437
2020
Q2 		$67.4K Hold
252
– – ﹤0.01% 445
2020
Q1 		$79.7K Hold
252
– – ﹤0.01% 390
2019
Q4 		$74.8K Hold
252
– – ﹤0.01% 455
2019
Q3 		$58.7K Buy
252
+180
+250% +$41.9K ﹤0.01% 501
2019
Q2 		$16.8K Buy
72
+45
+167% +$10.4K ﹤0.01% 550
2019
Q1 		$6.38K Buy
27
+2
+8% +$630 ﹤0.01% 605
2018
Q4 		$7.52K Hold
25
– – ﹤0.01% 600
2018
Q3 		$8.83K Hold
25
– – ﹤0.01% 611
2018
Q2 		$7.26K Sell
25
-15
-38% -$4.22K ﹤0.01% 613
2018
Q1 		$11K Buy
+40
New +$12.4K ﹤0.01% 601

Other funds holding BIIB

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
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
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
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Bartlett & Co Wealth Management's BIIB Position: Q1 2026 in Review

Bartlett & Co Wealth Management increased its Biogen (BIIB) stake by 9.3% in Q1 2026, buying an estimated $737 and bringing the position to 47 shares worth $8.8K. The position accounts for ﹤0.01% of the portfolio, ranked #942.

Bartlett & Co Wealth Management first reported a position in BIIB in Q1 2018 and has held it in 32 quarters since. The position peaked at $88.6K in Q2 2021. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Bartlett & Co Wealth Management held 47 shares of Biogen worth $8.8K as of Q1 2026.
  • Bartlett & Co Wealth Management bought 4 Biogen shares in Q1 2026, an estimated $737.
  • Biogen made up ﹤0.01% of Bartlett & Co Wealth Management's portfolio in Q1 2026, its #942 holding.
  • Bartlett & Co Wealth Management first reported a position in Biogen in Q1 2018 and has held it in 32 quarters since.
  • Bartlett & Co Wealth Management's Biogen position peaked at $88.6K in Q2 2021.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Bartlett & Co Wealth Management's 13F filing for Q1 2026, filed 6 May 2026.