EFS
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Econ Financial Services’s Biogen BIIB Stock Holding History

Econ Financial Services’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 		$1.36M Buy
6,300
+1,903
+43% +$364K 0.64% 53
2026
Q1 		$806K Buy
4,397
+451
+11% +$83.1K 0.37% 64
2025
Q4 		$694K Buy
+3,946
New +$645K 0.35% 63

Other funds holding BIIB

Pictet Asset Management
Pictet Asset Management Carouge, Switzerland $105B AUM 38.07% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
AIM
Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
AAMU
AEGON Asset Management (UK) Edinburgh, United Kingdom $9.38B AUM 48.94% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
ECSS
Eurizon Capital SGR SpA Milan $37.3B AUM
ADEF
Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return

Econ Financial Services's BIIB Position: Q2 2026 in Review

Econ Financial Services increased its Biogen (BIIB) stake by 43% in Q2 2026, buying an estimated $364K and bringing the position to 6,300 shares worth $1.36M. The position accounts for 0.64% of the portfolio, ranked #53.

Econ Financial Services first reported a position in BIIB in Q4 2025 and has held it in 3 quarters since. 405 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Econ Financial Services held 6,300 shares of Biogen worth $1.36M as of Q2 2026.
  • Econ Financial Services bought 1,903 Biogen shares in Q2 2026, an estimated $364K.
  • Biogen made up 0.64% of Econ Financial Services's portfolio in Q2 2026, its #53 holding.
  • Econ Financial Services first reported a position in Biogen in Q4 2025 and has held it in 3 quarters since.
  • 405 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Econ Financial Services's 13F filing for Q2 2026, filed 23 Jul 2026.