PTCT PTC THERAPEUTICS, INC.

BEARISH Impact: 6/10 Insider Cluster (3 insiders)
Horizon days Filed Mar 5, 2026 Processed 3mo ago
Insider cluster: 2 insiders, $887K total
Final — all horizons settled through T+60d
PTCT ▲ +16.53% at T+60d
SHORT call ✗ call lost -16.53% · α vs SPY -5.23% · entry $63.33 → $73.80
Currently $75.14 · -18.65% from $63.33 entry (call sign-flipped)
Entry anchored
Mar 4, 03:59 PM ET
via Databento tick
T+1d
-0.81%
call +0.81% · α -0.51%
$62.82
settled 3mo ago
T+5d
+0.05%
call -0.05% · α -2.29%
$63.36
settled 3mo ago
T+20d
+7.01%
call -7.01% · α -10.80%
$67.77
settled 2mo ago
T+60d
+16.53%
call -16.53% · α -5.23%
$73.80
settled 15d ago

Price Chart

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Executive Summary

Three corporate insiders at PTC Therapeutics sold shares in a coordinated 7-day window, including the Chief Medical Officer and Chief Technical Operations Officer, totaling $1.29 million in open-market transactions. The sales represent a modest but notable insider selling cluster, with executives and a director reducing holdings at current market prices.

Key Financial Metrics

Direction
selling
Total Value
$1.3M
Insiders
3

Actionable Insight

Monitor for potential follow-up selling or commentary ahead of next earnings; coordinated C-suite exits may signal caution despite no public negative news. Compare with historical patterns — if this deviates from routine selling, it could foreshadow downside risk.

Key Facts

  • EVP & Chief Medical Officer Scott Golden sold 10,000 shares for $633,800 in an open-market transaction.
  • Director Stephanie Okey sold 6,333 shares for $401,385.54 in an open-market transaction.
  • Chief Technical Operations Officer Neil Almstead sold 3,989 shares for $252,822.82 in an open-market transaction.
  • All transactions occurred on 2026-03-05 at $63.38 per share, totaling $1.288 million in aggregate.
  • Total value of the cluster is approximately 0.025% of the company's $5.2B market cap — modest in scale but notable due to participation by C-suite executives.

Financial Impact

$1.288 million in insider selling, representing 0.025% of market capitalization

insider ownershipinvestor sentimentshareholder dilution risk (neutral)

Risk Factors

  • Perception of insider lack of confidence, especially with Chief Medical Officer selling.
  • Potential for negative sentiment amplification if no fundamental explanation is provided.

Market Snapshot

Exchange
Nasdaq

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (3 trades, 7d window)cluster-PTCT-1773091238112
8 reports for PTCT
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for PTCT — sortable, filterable
Type Now
Jun 9, 2026
3d ago
8-K
NEUTRAL ★ 2/10
$73.75 awaiting T+5awaiting T+5$75.14 (+1.88%)
May 19, 2026
24d ago
Insider Cluster
NEUTRAL ★ 2/10
$71.02 $71.05▲ +0.04%▼ −1.76%$75.14 (+5.80%)
May 15, 2026
28d ago
Insider Cluster
NEUTRAL ★ 2/10
$70.15 $67.65▼ −3.56%▼ −5.18%$75.14 (+7.11%)
Apr 28, 2026
6w ago
8-K
BULLISH ★ 6/10
$64.55 $66.57▲ +3.13%▲ +0.02%$75.14 (+16.41%)
Apr 20, 2026
7w ago
DEFA14A
NEUTRAL ★ 3/10
$70.63 $70.26▼ −0.52%▼ −1.61%$75.14 (+6.39%)
Apr 1, 2026
10w ago
Insider Cluster
BEARISH ★ 5/10
$68.75 $70.85▼ −3.05%▲ +0.71%$75.14 (−9.29%)
Mar 5, 2026
14w ago
Insider Cluster
NEUTRAL ★ 3/10
$63.33 $63.36▲ +0.05%▲ +2.29%$75.14 (+18.65%)
Mar 5, 2026
14w ago
Insider Cluster
BEARISH ★ 6/10
$63.33 $63.36▼ −0.05%▼ −2.29%$75.14 (−18.65%)
Showing 8 of 8

US Market Status

Market Closed — Opens Mon (49h 34m)

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