Expect near-term downward pressure as the market absorbs the massive overhang. Watch for any immediate ATM sales or registered secondary offerings; further weakness likely until Karyopharm clarifies its financing plan or shows a path to profitability.
Price Chart
Executive Summary
Two shelf registrations effective: a $400M universal shelf (including $100M ATM) and an 8.8M-share resale shelf. This enables immediate equity dilution at a company with a $201M market cap and going-concern doubts, dramatically increasing supply risk.
Key Facts
- Both S-3 shelves (Nos. 333-295533 and 333-295535) declared effective May 14, 2026.
- $400M universal shelf includes $100M ATM; potential dilution ~200% of current market cap.
- 8.8M-share resale shelf for RA Capital (no proceeds to company) also effective.
- Auditor has expressed substantial doubt about Karyopharm's ability to continue as a going concern.
- No financial proceeds from the resale shelf; proceeds from universal shelf would be used for general corporate purposes.
Financial Impact
Potential dilution exceeding 200% of $201M market cap via the $400M universal shelf; additional 8.8M shares from resale shelf (about 4.4% of current float).
Risk Factors
- Immediate dilutive share sales under the ATM or universal shelf.
- Continued going concern uncertainty limiting institutional demand.
- Failure to secure non-dilutive financing alternatives.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 6 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| EFFECT Filing (KPTI) — Batch item 1 | 9999999995-26-001656 |
| Document: 9999999995-26-001656-index.html | 9999999995-26-001655 |
| Document: 9999999995-26-001656.txt | 9999999995-26-001656 |
| EFFECT Filing (KPTI) — Batch item 4 | 9999999995-26-001655 |
| Document: 9999999995-26-001655-index.html | 9999999995-26-001656 |
| Document: 9999999995-26-001655.txt | 9999999995-26-001656 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 11, 2026 21d ago | 8-K | $1.61 $1.88 | ▼ −16.77% | ▼ −16.99% | $0.8050 (+50.00%) |
Aug 31, 2026 4w ago | 8-K | $2.06 $1.72 | ▼ −16.50% | ▼ −16.36% | $0.8050 (−60.92%) |
Aug 13, 2026 7w ago | 8-K | $1.99 $1.82 | ▲ +8.54% | ▲ +6.58% | $0.8050 (+59.55%) |
Aug 10, 2026 7w ago | Press Release | $1.96 $1.81 | ▼ −7.65% | ▼ −7.61% | $0.8050 (−58.93%) |
Jul 31, 2026 9w ago | 8-K | $1.92 $2.12 | ▲ +10.42% | ▲ +6.91% | $0.8050 (−58.07%) |
Jul 17, 2026 10w ago | 8-K | $7.47 $7.41 | ▼ −0.80% | ▼ −0.38% | $0.8050 (−89.22%) |
May 15, 2026 19w ago | Insider Cluster | $7.14 $8.97 | ▲ +25.63% | ▲ +24.01% | $0.8050 (−88.73%) |
May 15, 2026 19w ago | Insider Cluster | $7.14 $8.97 | ▲ +25.63% | ▲ +24.01% | $0.8050 (−88.73%) |
May 15, 2026 19w ago | Insider Cluster | $7.14 $8.97 | ▼ −25.63% | ▼ −24.01% | $0.8050 (+88.73%) |
May 15, 2026 19w ago | Insider Cluster | $7.14 $8.97 | ▲ +25.63% | ▲ +24.01% | $0.8050 (−88.73%) |
US Market Status
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