Insider Cluster (4 insiders) ·Filed Sep 10, 2026

TWST

Twist Bioscience Corp
NEUTRAL
Impact 2/10
Horizondays Processed21d 20h ago
Insider cluster: 4 insiders, $0.5M total
Actionable Insight • Neutral

The cluster is too small to warrant a trading signal. Monitor for any upcoming 8-K or earnings release that might have prompted these sales, but the identical pricing and single-day execution strongly suggest a pre-planned 10b5-1 program. No action needed.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+5d
TWST ▲ +31.26% at T+5d
NEUTRAL call ✓ call won +31.26% · α vs SPY +31.60% · entry $127.22 → $166.99
Next anchor: T+20d in 6d
Latest observation: T+12 +29.05% FF3 residual α
Entry anchored
Sep 10, 04:00 PM ET
via 1-min bar
T+1d
+5.92%
call +5.92% · α +6.37%
$134.75
settled 21d ago
T+5d
+31.26%
call +31.26% · α +31.60%
$166.99
settled 15d ago
T+20d
—
call — · α —
—
in 6d
T+60d
—
call — · α —
—
in 2mo

Price Chart

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Executive Summary

Four Twist Bioscience insiders, including CEO Emily Leproust and CAO Robert Werner, sold a total of $473K in open-market sales on September 8, 2026. The cluster is small relative to the $8.3B market cap (0.006%), and all sales occurred on the same day at the same price, suggesting a routine 10b5-1 plan execution or post-vesting liquidity event rather than a coordinated bearish signal. The sales are immaterial and do not change the company's fundamental outlook.

Key Financial Metrics

Direction
selling
Total Value
$473.0K
Insiders
4

Key Facts

  • CEO Emily Leproust sold 2,302 shares for $282K on Sep 8, 2026
  • CAO Robert Werner sold 238 shares for $29K on Sep 8, 2026
  • Total cluster value of $473K represents 0.006% of $8.3B market cap
  • All four insiders sold on the same day at the same price ($122.62)
  • No insider purchases in the cluster

Financial Impact

Total insider sales of $473K, immaterial relative to $8.3B market cap

dilution

Risk Factors

  • Insider sales could accelerate if the stock continues to rise
  • No purchases to offset the selling signal

Market Snapshot

Exchange
Nasdaq
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
88% bullish (16 analysts)

Investment Themes

Biotech & Drug DiscoveryGenomics & Gene Editing

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-TWST-1789070462870
27 reports for TWST
Performance horizon
88% Hit rate 7 of 8 directional calls best @ T+60▲ +52.11%May 4, 2026
Filters
Rows
Reports for TWST — sortable, filterable
TypeNow
Sep 10, 2026
21d ago
Insider Cluster
NEUTRAL ★ 2/10
$127.22 $166.99▲ +31.26%▲ +31.60%$187.45 (+47.34%)
Aug 27, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$153.10 $128.71▼ −15.93%▼ −16.20%$187.45 (+22.44%)
Aug 25, 2026
5w ago
Insider Cluster
NEUTRAL ★ 4/10
$151.42 $132.06▼ −12.79%▼ −12.25%$187.45 (+23.79%)
Aug 21, 2026
6w ago
Insider Cluster
NEUTRAL ★ 4/10
$145.59 $141.38▼ −2.89%▼ −3.37%$187.45 (+28.75%)
Aug 20, 2026
6w ago
Insider Cluster
NEUTRAL ★ 3/10
$136.23 $153.10▲ +12.38%▲ +11.27%$187.45 (+37.60%)
Aug 14, 2026
6w ago
Insider Cluster
NEUTRAL ★ 4/10
$124.41 $140.80▲ +13.17%▲ +14.36%$187.45 (+50.67%)
Aug 14, 2026
6w ago
Insider Cluster
BEARISH ★ 6/10
$124.41 $140.80▼ −13.17%▼ −14.36%$187.45 (−50.67%)
Aug 12, 2026
7w ago
Insider Cluster
NEUTRAL ★ 4/10
$125.29 $136.23▲ +8.73%▲ +10.70%$187.45 (+49.61%)
Aug 12, 2026
7w ago
144
NEUTRAL ★ 2/10
$125.29 $136.23▲ +8.73%▲ +10.70%$187.45 (+49.61%)
Aug 11, 2026
7w ago
Insider Cluster
NEUTRAL ★ 4/10
$123.12 $116.10▼ −5.70%▼ −5.30%$187.45 (+52.25%)
Showing 10 of 27

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Report published Sep 10, 2026