Skip to content
berrytrail

Search

Search managers or tickers

BIIB

Biogen Inc. · XNAS

Season
Q2 2026 · as of Jun 30
Holders
4 of 97 filed · prev 4
Median weight
1.99%
Sector
Health Care
Type
equity · US

Moves2 this quarter

Streakslongest holders · 53 quarters on record

  1. Hillman Mark Hillman, CIO 3.8%27 quarters
  2. PRIMECAP Joel Fried, portfolio manager 1.9%27 quarters
  3. Patient Samantha McLemore, CIO 2.0%10 quarters
  4. Causeway Sarah Ketterer, CEO 0.7%7 quarters

The record for BIIB begins Q2 2013: 53 quarters.

Over time53 quarters, Q2 2013 to Q2 2026

Managers holding4 Q2 2026

Largest weight3.8% Q2 2026

Holders4 of 97 filed

HillmanMark Hillman, CIO3.75%23,993$5Mtrimmed−19%—27 q
PatientSamantha McLemore, CIO2.04%283,697$61Mtrimmed−25%−0.56 pp10 q
PRIMECAPJoel Fried, portfolio manager1.94%15,154,606$3.3Badded+3%+0.19 pp27 q
CausewaySarah Ketterer, CEO0.65%278,283$60Mtrimmed−1%—7 q