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8-K ·Filed Oct 14, 2026

KPTI

Karyopharm Therapeutics Inc.
NEUTRAL
Impact 3/10
Horizondays Processed13d 16h ago SEC0001193125-26-421025
8-K context-dependent: Items 8.01
Actionable Insight • Neutral

Monitor for further extensions or a definitive restructuring announcement by the October 22 deadline. The repeated short extensions suggest active negotiations but no imminent resolution.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+5d
KPTI ▲ +34.60% at T+5d
NEUTRAL call +34.60% · α vs SPY +34.15% · entry $0.3150 → $0.4240
Next anchor: T+20d in 14d
Latest observation: T+7 +79.96% FF3 residual α
Entry = T+0 close
Oct 14, 2026
via day close
T+1d
+11.43%
call +11.43% · α +11.14%
$0.3510
settled 13d ago
T+5d
+34.60%
call +34.60% · α +34.15%
$0.4240
settled 7d ago
T+20d
Pending
in 14d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Karyopharm Therapeutics filed an 8-K to extend the forbearance period under its existing Forbearance Agreement and Limited Waiver to Indentures from October 15, 2026 to October 22, 2026. This is a procedural extension with no new financial details, indicating ongoing negotiations with noteholders but no resolution yet.

Key Facts

  • Forbearance Period extended from October 15, 2026 to October 22, 2026.
  • Extension made under Section 19 of the Forbearance Agreement dated September 10, 2026.
  • No financial figures, restructuring terms, or new agreements disclosed.

Financial Impact

No financial impact disclosed; extension of forbearance period only.

Risk Factors

  • Failure to reach a permanent agreement could trigger default under the indentures.
  • Extended forbearance without resolution may signal deeper financial distress.

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001193125-26-421025
Document: 0001193125-26-421025-index-headers.html0001193125-26-421025
Document: 0001193125-26-421025-index.html0001193125-26-421025
Document: 0001193125-26-421025.txt0001193125-26-421025
22 reports for KPTI
Performance horizon
100% Hit rate @ T+60 4 of 4 directional calls Went positive at some point 9 of 10 best @ T+60▲ +71.57%May 15, 2026
Filters
Rows
Reports for KPTI — sortable, filterable
TypeNow
Oct 22, 2026
5d ago
8-K
BEARISH ★ 6/10
$0.5175awaiting T+60—$0.4800 (+7.25%)
Oct 14, 2026
13d ago
8-K
NEUTRAL ★ 3/10
$0.3150awaiting T+60—$0.4800 (+52.38%)
Oct 8, 2026
19d ago
SC 13G/A
BEARISH ★ 5/10
$0.6000awaiting T+60—$0.4800 (+20.00%)
Sep 25, 2026
4w ago
SC 13G/A
NEUTRAL ★ 3/10
$1.62awaiting T+60—$0.4800 (−70.37%)
Sep 25, 2026
4w ago
SC 13G/A
NEUTRAL ★ 3/10
$1.62awaiting T+60—$0.4800 (−70.37%)
Sep 11, 2026
6w ago
8-K
BEARISH ★ 9/10
$1.61awaiting T+60—$0.4800 (+70.19%)
Aug 31, 2026
8w ago
8-K
BULLISH ★ 6/10
$2.06awaiting T+60—$0.4800 (−76.70%)
Aug 13, 2026
10w ago
8-K
BEARISH ★ 8/10
$1.99awaiting T+60—$0.4800 (+75.88%)
Aug 10, 2026
11w ago
Press Release
NEUTRAL ★ 1/10
$1.96awaiting T+60—$0.4800 (−75.51%)
Jul 31, 2026
12w ago
8-K
MIXED ★ 6/10
$1.92 $0.4821▼ −74.89%▼ −77.35%$0.4800 (−75.00%)
Showing 10 of 22

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Report published Oct 14, 2026