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Insider Cluster (2 insiders) ·Filed Sep 17, 2026

NTRA

Natera, Inc.
BEARISH
Impact 5/10
Horizondays Processed1mo ago
Insider cluster: 2 insiders, $3.0M total
Actionable Insight ▼ Bearish

The Executive Chairman's concentrated selling of ~$26.6M over two days without any insider buying is a strong bearish signal. Monitor for upcoming earnings or material news that may have prompted the sale. The lack of 10b5-1 plan disclosure suggests these are discretionary sales.

DirectionBearish
Confidencemedium
Horizondays
Latest settled — T+20d ⚠ clustered
NTRA ▲ +6.51% at T+20d
SHORT call ✗ call lost -6.51% · α vs SPY -6.31% · entry $369.39 → $393.44
Next anchor: T+60d in 6w
Latest observation: T+25 +6.49% FF3 residual α
Entry = T+0 close
Sep 17, 2026
via day close
T+1d
+0.34%
call -0.34% · α +1.21%
$370.64
settled 6w ago
T+5d
+11.69%
call -11.69% · α -10.42%
$412.56
settled 5w ago
T+20d
+6.51%
call -6.51% · α -6.31%
$393.44
settled 12d ago
T+60d
Pending
in 6w

Price Chart

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Executive Summary

Executive Chairman Matthew Rabinowitz and Director Jonathan Sheena sold a combined $3.04M in open-market sales on September 14-15, 2026. The Executive Chairman alone sold ~$26.6M across 20 trades, representing a material insider unloading at elevated prices near $340-351. This cluster is overwhelmingly selling, with no insider buying to offset.

Key Financial Metrics

Direction
selling
Total Value
$29.6M
Insiders
2

Key Facts

  • Executive Chairman Rabinowitz sold ~$26.6M in 20 open-market trades on Sep 14-15, 2026
  • Director Sheena sold $2.1M in a single trade on Sep 15, 2026
  • Total cluster value: $3.04M (Sheena) + $26.6M (Rabinowitz) = ~$29.6M
  • No insider purchases in the cluster; net direction is selling
  • Sales occurred near 52-week highs (~$340-351 range)

Financial Impact

~$29.6M in open-market sales by two insiders, with Executive Chairman accounting for ~90% of the value

insider sellingexecutive chairman sales

Risk Factors

  • Insider selling by Executive Chairman at elevated prices may signal peak valuation concerns
  • No insider buying to offset selling suggests lack of confidence at senior level
  • Cluster selling concentrated in two-day window increases information-signal strength

Investment Themes

Healthcare & Medical Devices

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-NTRA-1789695411555
40 reports for NTRA
Performance horizon
71% Hit rate @ T+1 5 of 7 directional calls Went positive at some point 5 of 7 best @ T+5▲ +6.55%Oct 2, 2026
Filters
Rows
Reports for NTRA — sortable, filterable
TypeNow
Oct 20, 2026
6d ago
Insider Cluster
NEUTRAL ★ 3/10
$413.38 $401.37▼ −2.91%▼ −1.72%$410.98 (−0.58%)
Oct 20, 2026
6d ago
Institutional Cluster
BEARISH ★ 4/10
$413.38 $401.37▲ +2.91%▲ +1.72%$410.98 (+0.58%)
Oct 2, 2026
24d ago
Insider Cluster
BEARISH ★ 5/10
$425.64 $400.65▲ +5.87%▲ +6.42%$410.98 (+3.44%)
Sep 17, 2026
5w ago
Insider Cluster
BEARISH ★ 5/10
$369.39 $370.64▼ −0.34%▲ +1.21%$410.98 (−11.26%)
Sep 17, 2026
5w ago
Insider Cluster
BEARISH ★ 5/10
$369.39 $370.64▼ −0.34%▲ +1.21%$410.98 (−11.26%)
Sep 3, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$328.18 $324.14▼ −1.23%▼ −0.68%$410.98 (+25.23%)
Aug 28, 2026
8w ago
Insider Cluster
BEARISH ★ 4/10
$321.96 $320.76▲ +0.37%▼ −0.31%$410.98 (−27.65%)
Aug 14, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$314.18 $311.69▼ −0.79%▼ −0.12%$410.98 (+30.81%)
Aug 7, 2026
11w ago
Insider Cluster
NEUTRAL ★ 2/10
$318.35 $312.72▼ −1.77%▼ −1.45%$410.98 (+29.10%)
Aug 5, 2026
11w ago
Insider Cluster
BEARISH ★ 4/10
$265.38 $322.10▼ −21.37%▼ −20.76%$410.98 (−54.86%)
Showing 10 of 40

US Market Status

Market Open — Closes in 2m

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Report published Sep 17, 2026