IRC
BIIB icon

Investors Research Corp’s Biogen BIIB Stock Holding History

Investors Research Corp’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 		$355K Sell
1,641
-209
-11% -$40K 0.06% 203
2026
Q1 		$339K Hold
1,850
– – 0.06% 212
2025
Q4 		$326K Hold
1,850
– – 0.06% 238
2025
Q3 		$259K Hold
1,850
– – 0.05% 271
2025
Q2 		$232K Buy
+1,850
New +$231K 0.05% 284
2020
Q4 		– Sell
-10
Closed -$3K – 1076
2020
Q3 		$3K Hold
10
– – ﹤0.01% 961
2020
Q2 		$3K Hold
10
– – ﹤0.01% 963
2020
Q1 		$3K Hold
10
– – ﹤0.01% 966
2019
Q4 		$3K Hold
10
– – ﹤0.01% 989
2019
Q3 		$2K Hold
10
– – ﹤0.01% 1017
2019
Q2 		$2K Hold
10
– – ﹤0.01% 956
2019
Q1 		$2K Buy
+10
New +$3.15K ﹤0.01% 933

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

Investors Research Corp's BIIB Position: Q2 2026 in Review

Investors Research Corp reduced its Biogen (BIIB) stake by 11% in Q2 2026, selling an estimated $40K and leaving 1,641 shares worth $355K. The position accounts for 0.06% of the portfolio, ranked #203.

Investors Research Corp first reported a position in BIIB in Q1 2019 and has held it in 12 quarters since. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Investors Research Corp held 1,641 shares of Biogen worth $355K as of Q2 2026.
  • Investors Research Corp sold 209 Biogen shares in Q2 2026, an estimated $40K.
  • Biogen made up 0.06% of Investors Research Corp's portfolio in Q2 2026, its #203 holding.
  • Investors Research Corp first reported a position in Biogen in Q1 2019 and has held it in 12 quarters since.
  • 1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Investors Research Corp's 13F filing for Q2 2026, filed 10 Jul 2026.