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Atlas Capital Advisors’s Biogen BIIB Stock Holding History

Atlas Capital Advisors’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
Q2 		$633K Sell
2,930
-28
-0.9% -$5.36K 0.07% 240
2026
Q1 		$542K Buy
2,958
+114
+4% +$21K 0.06% 244
2025
Q4 		$501K Buy
+2,844
New +$465K 0.06% 266
2023
Q4 		– Sell
-60
Closed -$15.4K – 896
2023
Q3 		$15.4K Sell
60
-28
-32% -$7.49K ﹤0.01% 664
2023
Q2 		$25.1K Hold
88
– – ﹤0.01% 654
2023
Q1 		$24.5K Sell
88
-597
-87% -$165K ﹤0.01% 654
2022
Q4 		$190K Buy
+685
New +$193K 0.03% 349
2022
Q1 		– Sell
-143
Closed -$34.3K – 916
2021
Q4 		$34.3K Sell
143
-1,541
-92% -$396K 0.01% 579
2021
Q3 		$477K Buy
+1,684
New +$552K 0.08% 211
2021
Q1 		– Sell
-582
Closed -$143K – 795
2020
Q4 		$143K Sell
582
-1,868
-76% -$482K 0.03% 345
2020
Q3 		$695K Sell
2,450
-2,637
-52% -$735K 0.16% 134
2020
Q2 		$1.36M Buy
5,087
+4,957
+3,813% +$1.49M 0.32% 73
2020
Q1 		$41.1K Buy
+130
New +$39.5K 0.01% 460
2019
Q3 		– Sell
-810
Closed -$189K – 639
2019
Q2 		$189K Sell
810
-3,538
-81% -$817K 0.06% 300
2019
Q1 		$1.03M Buy
4,348
+4,311
+11,651% +$1.36M 0.37% 78
2018
Q4 		$11.1K Hold
37
– – ﹤0.01% 502
2018
Q3 		$13.1K Hold
37
– – ﹤0.01% 490
2018
Q2 		$13.1K Sell
37
-26
-41% -$7.31K ﹤0.01% 457
2018
Q1 		$17.3K Buy
+63
New +$19.6K 0.01% 457

Other funds holding BIIB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Atlas Capital Advisors's BIIB Position: Q2 2026 in Review

Atlas Capital Advisors reduced its Biogen (BIIB) stake by 0.95% in Q2 2026, selling an estimated $5.36K and leaving 2,930 shares worth $633K. The position accounts for 0.07% of the portfolio, ranked #240.

Atlas Capital Advisors first reported a position in BIIB in Q1 2018 and has held it in 19 quarters since. The position peaked at $1.36M in Q2 2020. 1,045 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Atlas Capital Advisors held 2,930 shares of Biogen worth $633K as of Q2 2026.
  • Atlas Capital Advisors sold 28 Biogen shares in Q2 2026, an estimated $5.36K.
  • Biogen made up 0.07% of Atlas Capital Advisors's portfolio in Q2 2026, its #240 holding.
  • Atlas Capital Advisors first reported a position in Biogen in Q1 2018 and has held it in 19 quarters since.
  • Atlas Capital Advisors's Biogen position peaked at $1.36M in Q2 2020.
  • 1,045 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Atlas Capital Advisors's 13F filing for Q2 2026, filed 13 Aug 2026.