Biogen Inc. (BIIB) — Dilution Risk Analysis
Current Snapshot
Biogen Inc. (BIIB) has a DilutionWatch score of 10/10 and is classified as LOW risk. The score date in the source data is 2026-10-03T03:45:52.527348.
This page is assembled from sourced share-structure, market-data, SEC-filing, and DilutionWatch fields. Missing values are left blank rather than estimated.
Dilution Risk Score
Score: 10/10 Source (as of 2026-10-03T03:45:52.527348)
Recent SEC Filings
Recent filing forms in the source payload: FORM 4 3, 3 1, 4 6.
| Form | Filed | Accession |
|---|---|---|
| Form 4 | 2026-09-01 | 0000875045-26-000082|0001661567|2026-09-01|A|7405 |
| Form 4 | 2026-08-04 | 0000875045-26-000076|0002038687|2026-08-04|S|593 |
| Form 4 | 2026-08-03 | 0000875045-26-000076|0002038687|2026-08-03|S|593 |
| 3 | 2026-04-06 | 0000950157-26-000479 |
| 4 | 2026-04-03 | 0000875045-26-000036 |
| 4 | 2026-02-17 | 0000875045-26-000026 |
| 4 | 2026-02-17 | 0000875045-26-000027 |
| 4 | 2026-02-17 | 0000875045-26-000028 |
| 4 | 2026-02-17 | 0000875045-26-000029 |
| 4 | 2026-02-17 | 0000875045-26-000030 |
Dilution Risk Drivers
| Driver | Stored Value | Source |
|---|---|---|
| Cash runway | 999 months | Source |
| Three-year share count growth | 1.89% | Source |
DilutionWatch Analysis
- Risk Level
- LOW (Score: 10/10) Source
- Cash Runway
- 999 months Source
- Share Count Growth (3-Year)
- 1.89% Source
What This Page Does Not Estimate
DilutionWatch does not infer missing cash runway, authorized share count, ATM capacity, shelf capacity, or share-growth values on this page. A blank field means the current source payload did not provide a usable value with provenance.
Scores and classifications are shown only when supplied by the DilutionWatch data layer. SEC filing rows link to their source accession when a filing URL is available.