BIOGEN INC · CUSIP 09062X103 · CIK 1108831
As of 2026-06-30, STONERIDGE INVESTMENT PARTNERS LLC reported 3.41K BIIB (shares), valued at $693.00K, or 0.45% of its reported non-derivative portfolio. Filed 2026-08-06.
Verify history & sources →Shares decreased 51.43%; reported value decreased 46.24%, and weight changed -0.48 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 0.45% | 3,414 | SEC filing ↗Filed Aug 6, 2026 |
| Q1 2026 | 0.93% | 7,029 | SEC filing ↗Filed May 6, 2026 |
| Q4 2025 | 1.73% | 14,116 | SEC filing ↗Filed Feb 5, 2026 |
| Q3 2025 | 1.40% | 14,599 | SEC filing ↗Filed Oct 31, 2025 |
| Q2 2025 | 1.38% | 14,599 | SEC filing ↗Filed Aug 11, 2025 |
| Q1 2025 | 1.69% | 14,599 | SEC filing ↗Filed May 14, 2025 |
| Q4 2024 | 1.85% | 33,799 | SEC filing ↗Filed Jan 28, 2025 |
| Q3 2024 | 2.44% | 33,799 | SEC filing ↗Filed Oct 30, 2024 |
| Q2 2024 | 2.68% | 30,555 | SEC filing ↗Filed Aug 8, 2024 |
| Q1 2024 | 2.45% | 29,874 | SEC filing ↗Filed May 6, 2024 |
| Q4 2023 | 2.65% | 24,322 | SEC filing ↗Filed Feb 7, 2024 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q4 2023 | 2.65% | 24,322 | $6.29M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Feb 7, 2024 |
| Q1 2024 | 2.45% | 29,874 | $6.44M | Shares increased 22.83%; reported value increased 2.35%, and weight changed -0.20 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 6, 2024 |
| Q2 2024 | 2.68% | 30,555 | $7.08M | Shares increased 2.28%; reported value increased 9.95%, and weight changed +0.23 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 8, 2024 |
| Q3 2024 | 2.44% | 33,799 | $6.55M | Shares increased 10.62%; reported value decreased 7.50%, and weight changed -0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 30, 2024 |
| Q4 2024 | 1.85% | 33,799 | $5.17M | Shares unchanged; reported value decreased 21.11%, and weight changed -0.59 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Jan 28, 2025 |
| Q1 2025 | 1.69% | 14,599 | $2.00M | Shares decreased 56.81%; reported value decreased 61.35%, and weight changed -0.16 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 14, 2025 |
| Q2 2025 | 1.38% | 14,599 | $1.83M | Shares unchanged; reported value decreased 8.26%, and weight changed -0.31 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 11, 2025 |
| Q3 2025 | 1.40% | 14,599 | $2.04M | Shares unchanged; reported value increased 11.57%, and weight changed +0.02 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Oct 31, 2025 |
| Q4 2025 | 1.73% | 14,116 | $2.48M | Shares decreased 3.31%; reported value increased 21.47%, and weight changed +0.33 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 5, 2026 |
| Q1 2026 | 0.93% | 7,029 | $1.29M | Shares decreased 50.21%; reported value decreased 48.11%, and weight changed -0.80 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 6, 2026 |
| Q2 2026 | 0.45% | 3,414 | $693.00K | Shares decreased 51.43%; reported value decreased 46.24%, and weight changed -0.48 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 6, 2026 |
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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.