Redmile Group, LLC
CIK 1425738 · last filed 2026-08-07
Redmile Group, LLC is a corporate insider who has filed 34 SEC Form 4 insider transactions across 18 companies since 2018. The most recent filing, for ATTO, was dated Aug 7, 2026. Across all open-market trades the lifetime net is +$183.6M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $199.4M across reported positions. The firm reports its address in Larkspur, CA. 196 SEC filings were submitted jointly with Jeremy Green.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
TRDA price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SUITE 270
LARKSPUR, CA 94939
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ATTO | 10%+ Owner | 2,165,708 | $13.88 | $30.06M | $30.60M | 1 | 2026-08-07 |
| ATRA | Director | 636,852 | $8.35 | $5.32M | $0 | 1 | 2026-07-24 |
| ADCT | 10%+ Owner | 25,735,799 | $1.51 | $38.86M | -$58.91M | 2 | 2026-04-02 |
| IGM Biosciences, Inc. (IGMS) Delisted | Director | 2,964,843 | $1.27 | $3.77M | $14.63M | 4 | 2025-07-02 |
| STTK | Director | 5,539,724 | $5.54 | $30.69M | $0 | 1 | 2024-12-06 |
| Augmedix, Inc. (AUGX) Delisted | Director | 25,850,163 | $2.35 | $60.75M | $37.50M | 2 | 2023-11-22 |
| ABSI | Director | — | $9.45 | — | $0 | 1 | 2022-06-10 |
| TRDA | 10%+ Owner | 954,420 | $4.75 | $4.53M | $60.00M | 1 | 2021-11-04 |
| Science 37 Holdings, Inc. (SNCE) Delisted | Director | 987,539 | $5.75 | $5.68M | $0 | 1 | 2021-10-08 |
| FATE | Director | 12,957,222 | $2.06 | $26.63M | $56.00M | 1 | 2021-01-12 |
| NRIX | 10%+ Owner | 1,176,470 | $25.55 | $30.06M | $0 | 1 | 2020-07-30 |
| PLRX | 10%+ Owner | 1,910,657 | $0.85 | $1.62M | $0 | 1 | 2020-06-09 |
| CABA | 10%+ Owner | 696,378 | $1.35 | $940.1K | $0 | 1 | 2019-10-29 |
| APRE | 10%+ Owner | 93,436 | $0.45 | $42.0K | $12.00M | 1 | 2019-10-08 |
| ALDER BIOPHARMACEUTICALS INC (ALDR) Delisted | Director | — | — | — | $0 | 4 | 2019-07-01 |
| HOOKIPA Pharma Inc. (HOOK) Delisted | 10%+ Owner | 99,932 | $1.15 | $114.9K | $0 | 1 | 2019-04-24 |
| XERS | 10%+ Owner | 3,000,642 | $10.21 | $30.64M | $31.76M | 2 | 2019-02-21 |
| Gritstone bio, Inc. (GRTS) Delisted | 10%+ Owner | 869,562 | $0.03 | $28.0K | $0 | 1 | 2018-10-03 |
Recent Filings
34 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-07 | ATTO | Mixed | +4,148,562 | $30.60M | EDGAR |
| 2026-07-24 | ATRA | Mixed | +390,302 | $0 | EDGAR |
| 2026-04-02 | ADCT | Sell (S) | −17,641,245 | -$58.91M | EDGAR |
| 2025-07-02 | IGM Biosciences, Inc. (IGMS) Delisted | Grant (A) | +1,656 | $0 | EDGAR |
| 2024-12-20 | FATE | Notice (144) | −341,633 | -$567.1K | EDGAR |
| 2024-12-06 | STTK | Mixed | — | $0 | EDGAR |
| 2024-12-04 | STTK | Notice (144) | −133,371 | -$150.7K | EDGAR |
| 2024-05-10 | ADCT | Buy (P) | — | $0 | EDGAR |
| 2024-04-01 | IGM Biosciences, Inc. (IGMS) Delisted | Mixed | −21,460 | $0 | EDGAR |
| 2023-11-22 | Augmedix, Inc. (AUGX) Delisted | Mixed | +4,500,000 | $18.00M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.