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Cromwell Holdings’s Biogen BIIB Stock Holding History

Cromwell Holdings’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 		$116K Buy
535
+20
+4% +$3.83K 0.05% 313
2026
Q1 		$94.4K Buy
515
+4
+0.8% +$737 0.05% 338
2025
Q4 		$89.9K Hold
511
– – 0.05% 333
2025
Q3 		$71.6K Hold
511
– – 0.04% 400
2025
Q2 		$64.2K Buy
511
+501
+5,010% +$62.4K 0.04% 405
2025
Q1 		$1.37K Sell
10
-333
-97% -$47.6K ﹤0.01% 630
2024
Q4 		$52.5K Buy
343
+49
+17% +$8.27K 0.03% 442
2024
Q3 		$57K Sell
294
-125
-30% -$26.2K 0.04% 422
2024
Q2 		$97.1K Buy
+419
New +$91.1K 0.06% 288

Other funds holding BIIB

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
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
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
ADEF
Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
GIA
Gateway Investment Advisers Cincinnati, Ohio $10.1B AUM 40.26% 1-Year Est. Return
NGM
North Growth Management Vancouver, British Columbia, Canada $780M AUM 102.77% 1-Year Est. Return

Cromwell Holdings's BIIB Position: Q2 2026 in Review

Cromwell Holdings increased its Biogen (BIIB) stake by 3.9% in Q2 2026, buying an estimated $3.83K and bringing the position to 535 shares worth $116K. The position accounts for 0.05% of the portfolio, ranked #313.

Cromwell Holdings first reported a position in BIIB in Q2 2024 and has held it in 9 quarters since. 226 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Cromwell Holdings held 535 shares of Biogen worth $116K as of Q2 2026.
  • Cromwell Holdings bought 20 Biogen shares in Q2 2026, an estimated $3.83K.
  • Biogen made up 0.05% of Cromwell Holdings's portfolio in Q2 2026, its #313 holding.
  • Cromwell Holdings first reported a position in Biogen in Q2 2024 and has held it in 9 quarters since.
  • 226 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Cromwell Holdings's 13F filing for Q2 2026, filed 14 Jul 2026.