Redmile's 8.7% stake is a significant post-IPO position from a healthcare-focused investment firm. Monitor for any future conversion to a 13D if Redmile engages with management, though the passive certification suggests a long-term investment thesis.
Price Chart
Executive Summary
Redmile Group, LLC and affiliated entities filed a Schedule 13G disclosing a passive 8.7% beneficial ownership stake in Electra Therapeutics, Inc., representing 5,462,881 shares of common stock. The filing is a new position dated September 21, 2026, shortly after the company's IPO, and indicates no intent to influence control.
Key Financial Metrics
Key Facts
- Redmile Group, LLC beneficially owns 5,462,881 shares (8.7% of outstanding common stock) as of September 21, 2026.
- Redmile Biopharma Investments II, L.P. directly holds 4,796,215 shares (7.6%).
- The stake is based on 62,766,955 shares outstanding immediately after the IPO per the company's September 17, 2026 prospectus.
- Filer certifies passive intent under Rule 13d-1(c) with no purpose of changing or influencing control.
- This is a new position filed shortly after the IPO, not an amendment to a prior filing.
Financial Impact
8.7% passive stake valued at approximately $X (no per-share price provided in filing).
Risk Factors
- Redmile could later convert to an activist 13D, though no indication of that intent currently.
- Concentrated ownership by a single group may influence stock volatility on fund flows.
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0001104659-26-111478 |
| Document: 0001104659-26-111478-index-headers.html | 0001104659-26-111478 |
| Document: 0001104659-26-111478-index.html | 0001104659-26-111478 |
| Document: 0001104659-26-111478.txt | 0001104659-26-111478 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 28, 2026 27d ago | SC 13G | $11.35 $11.25 | ▼ −0.88% | ▼ −0.68% | $8.35 (−26.43%) |
Sep 28, 2026 27d ago | SC 13G | $11.35 $11.25 | ▼ −0.88% | ▼ −0.68% | $8.35 (−26.43%) |
Sep 25, 2026 4w ago | SC 13D | $11.32 $11.35 | ▲ +0.27% | ▲ +0.45% | $8.35 (−26.24%) |
Sep 23, 2026 4w ago | Insider Cluster | $11.82 $11.55 | ▼ −2.28% | ▼ −2.83% | $8.35 (−29.36%) |
Sep 21, 2026 4w ago | 3 | $13.62 $12.67 | ▼ −6.97% | ▼ −6.25% | $8.35 (−38.69%) |
Sep 18, 2026 5w ago | 424B4 | $13.92 $13.62 | ▼ −2.16% | ▼ −2.14% | $8.35 (−40.01%) |
Sep 18, 2026 5w ago | 3 | $13.92 $13.62 | ▼ −2.16% | ▼ −2.14% | $8.35 (−40.01%) |
Sep 18, 2026 5w ago | 3 | $13.92 $13.62 | ▼ −2.16% | ▼ −2.14% | $8.35 (−40.01%) |
Sep 18, 2026 5w ago | 3 | $13.92 $13.62 | ▼ −2.16% | ▼ −2.14% | $8.35 (−40.01%) |
Sep 18, 2026 5w ago | EFFECT | $13.25 $13.92 | ▲ +5.06% | ▲ +3.51% | $8.35 (−36.98%) |
US Market Status
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