INSM INSMED Inc

BEARISH Impact: 5/10 Insider Cluster (2 insiders)
Horizon days Filed Mar 30, 2026 Processed 2mo ago
Insider cluster: 2 insiders, $4.1M total
Latest settled — T+20d
INSM ▼ -11.99% at T+20d
SHORT call ✓ call won +11.99% · α vs SPY +24.58% · entry $153.32 → $134.94
Next anchor: T+60d in 14d
Currently $99.04 · +35.40% from $153.32 entry (call sign-flipped)
Entry anchored
Mar 27, 03:59 PM ET
via Databento tick
T+1d
+6.65%
call -6.65% · α -3.76%
$163.52
settled 2mo ago
T+5d
+6.33%
call -6.33% · α -2.03%
$163.03
settled 2mo ago
T+20d
-11.99%
call +11.99% · α +24.58%
$134.94
settled 6w ago
T+60d
call — · α —
in 14d

Price Chart

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Executive Summary

Two C-suite executives at Insmed sold shares in the past week, generating $4.06 million in total proceeds. The sales were open-market transactions following derivative exercises, with no open-market buying observed. This insider selling represents a modest but notable outflow relative to the company's $35B market cap.

Key Financial Metrics

Direction
selling
Total Value
$4.1M
Insiders
2

Actionable Insight

Monitor for potential follow-on selling or lack of insider buying ahead of next earnings. While the dollar amount is not highly material, coordinated C-suite selling may signal limited near-term upside in the stock at current levels.

Key Facts

  • Chief Operating Officer Roger Adsett sold 6,715 shares for $1.10M on April 1, 2026.
  • Chief Legal Officer Michael Smith sold 19,638 shares for $2.96M on March 30, 2026.
  • Both executives also exercised stock options, including non-cash transactions totaling $1.38M in value.
  • Total open-market selling in the cluster: $4.06M over 7 days.
  • Selling represents approximately 0.012% of Insmed's $35B market cap.

Financial Impact

$4.06 million in open-market insider selling over 7 days

insider ownershipmarket sentiment

Risk Factors

  • Perception of insider pessimism despite routine nature of post-exercise selling
  • Potential for negative market reaction if investors interpret sales as lack of confidence

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-INSM-1775246891949
19 reports for INSM
Performance horizon
100% Hit rate 7 of 7 directional calls best @ T+20▲ +12.95%Apr 7, 2026
Filters
Rows
Reports for INSM — sortable, filterable
Type Now
Jun 5, 2026
4d ago
Insider Cluster
NEUTRAL ★ 2/10
$94.15 awaiting T+5awaiting T+5$99.04 (+5.19%)
Jun 5, 2026
4d ago
Insider Cluster
NEUTRAL ★ 2/10
$103.78 awaiting T+5awaiting T+5$99.04 (−4.57%)
May 16, 2026
24d ago
ANALYST-UPGRADE
BULLISH ★ 5/10
$153.32 $163.03▲ +6.33%▲ +2.03%$99.04 (−35.40%)
May 15, 2026
25d ago
S-3ASR
NEUTRAL ★ 3/10
$107.15 $108.87▲ +1.61%▼ −0.01%$99.04 (−7.57%)
May 15, 2026
25d ago
Insider Cluster
NEUTRAL ★ 3/10
$107.15 $108.87▲ +1.61%▼ −0.01%$99.04 (−7.57%)
May 13, 2026
27d ago
144
NEUTRAL ★ 2/10
$115.62 $109.53▼ −5.27%▼ −4.55%$99.04 (−14.34%)
May 7, 2026
4w ago
8-K
BULLISH ★ 6/10
$105.00 $117.99▲ +12.37%▲ +10.87%$99.04 (−5.68%)
May 4, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$140.01 $103.89▼ −25.80%▼ −28.73%$99.04 (−29.26%)
Apr 16, 2026
7w ago
ANALYST-UPGRADE
MIXED ★ 5/10
$142.79 $143.83▲ +0.73%▼ −0.26%$99.04 (−30.64%)
Apr 16, 2026
7w ago
ANALYST-UPGRADE
MIXED ★ 6/10
$142.79 $143.83▲ +0.73%▼ −0.26%$99.04 (−30.64%)
Showing 10 of 19

US Market Status

Market Closed — Opens Thu (9h 47m)

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