# Biogen Inc.: insider transactions

SEC CIK 875045. Roles and transactions as reported on Form 4. Latest Form 4 filed 2023-09-28.

## Roles

| Company | Role | Transactions | First | Latest |
| --- | --- | ---: | --- | --- |
| [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | 10% owner | 12 | 2021-11-26 | 2023-09-26 |

## Transactions: 12

Every transaction reported, newest first. Codes P and S are open-market purchases and sales. Reported price is as stated on the form.

| Date | Company | Transaction | Shares | Reported price | Value | Filing |
| --- | --- | --- | ---: | ---: | ---: | --- |
| 2023-09-26 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 6,000,000 | $0.50 | $3.0m | [Form 4](/filings/0000899243-23-019611.md) |
| 2022-08-30 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 100,000 | $5.2652 | $526.5k | [Form 4](/filings/0000899243-22-030136.md) |
| 2022-08-29 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 400,000 | $5.3268 | $2.1m | [Form 4](/filings/0000899243-22-030136.md) |
| 2021-12-28 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 2,764 | $8.5101 | $23.5k | [Form 4](/filings/0000875045-21-000061.md) |
| 2021-12-27 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 600 | $8.56 | $5.1k | [Form 4](/filings/0000875045-21-000060.md) |
| 2021-12-23 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 81,187 | $8.5547 | $694.5k | [Form 4](/filings/0000875045-21-000060.md) |
| 2021-12-09 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 23,660 | $8.5605 | $202.5k | [Form 4](/filings/0000875045-21-000059.md) |
| 2021-12-08 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 75,814 | $8.6373 | $654.8k | [Form 4](/filings/0000875045-21-000058.md) |
| 2021-12-07 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 52,178 | $8.5177 | $444.4k | [Form 4](/filings/0000875045-21-000058.md) |
| 2021-12-02 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 1,874 | $8.5074 | $15.9k | [Form 4](/filings/0000875045-21-000057.md) |
| 2021-12-01 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 730 | $8.5249 | $6.2k | [Form 4](/filings/0000875045-21-000057.md) |
| 2021-11-26 | [Sangamo Therapeutics, Inc](/companies/sgmoq.md) | Sale (S) | 28,884 | $8.6011 | $248.4k | [Form 4](/filings/0000875045-21-000055.md) |

Source: SEC EDGAR, Forms 4. Last ingested by Listed: Oct 31, 2026, 00:19 ET. No prices; not investment advice.