Fidelity's 6.9% passive stake establishes a new institutional ownership baseline post-merger. Monitor for any future conversion to a 13D filing, which would signal activist intent, or for a reduction below 5% indicating loss of conviction. The next catalyst is Phase 1 data for KRSA-028 expected mid-2027.
Price Chart
Executive Summary
FMR LLC (Fidelity) filed an amended Schedule 13G disclosing beneficial ownership of 3,144,797 shares of Korsana Biosciences common stock as of September 30, 2026, representing a 6.9% passive stake. This is the first Fidelity 13G filing post-merger (the company emerged from a reverse merger with Korsana on September 8, 2026), establishing a new institutional ownership baseline rather than signaling a change in conviction.
Key Financial Metrics
Key Facts
- FMR LLC (Fidelity) reports 3,144,797 shares of Korsana Biosciences common stock as of September 30, 2026
- Stake represents 6.9% of outstanding shares
- Filed as a passive investor under Rule 13d-1(b) — no activist intent
- First Fidelity 13G filing since the company's reverse merger completion on September 8, 2026
- Filing date October 7, 2026, with beneficial ownership determined as of September 30, 2026
Financial Impact
Fidelity holds a 6.9% passive stake in Korsana Biosciences — no transaction amounts disclosed
Risk Factors
- Fidelity could reduce its stake below 5% without immediate public disclosure, signaling waning institutional confidence
- As a passive filer, Fidelity is not signaling any intent to influence management or strategy
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0000315066-26-002345 |
| Document: 0000315066-26-002345-index-headers.html | 0000315066-26-002345 |
| Document: 0000315066-26-002345-index.html | 0000315066-26-002345 |
| Document: 0000315066-26-002345.txt | 0000315066-26-002345 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 7, 2026 20d ago | SC 13G/A | — | awaiting T+5 | — | — |
Sep 11, 2026 6w ago | 8-K | $3.47 | awaiting T+5 | — | — |
Sep 10, 2026 6w ago | 3 | $3.47 | awaiting T+5 | — | — |
Aug 27, 2026 8w ago | 8-K | $3.99 $4.96 | ▲ +24.31% | ▲ +24.04% | — |
Aug 10, 2026 11w ago | 425 | $3.57 $4.12 | ▲ +15.41% | ▲ +15.81% | — |
Aug 3, 2026 12w ago | 425 | $3.51 $3.57 | ▲ +1.71% | ▲ +1.81% | — |
Jul 27, 2026 13w ago | EFFECT | $3.50 $3.44 | ▼ −1.71% | ▼ −2.79% | — |
Jul 10, 2026 15w ago | 425 | $3.82 $3.64 | ▼ −4.71% | ▼ −3.93% | — |
Jun 9, 2026 20w ago | S-4/A | $3.09 $3.18 | ▼ −2.91% | ▲ +0.52% | — |
Apr 30, 2026 25w ago | 10-K/A | $3.31 $3.24 | ▼ −2.11% | ▼ −3.84% | — |
US Market Status
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