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Insider Cluster (2 insiders) ·Filed Oct 5, 2026

ADPT

Adaptive Biotechnologies Corp
NEUTRAL
Impact 3/10
Horizondays Processed22d 5h ago
Insider cluster: 2 insiders, $390K total
Actionable Insight • Neutral

Sales are modest relative to market cap and follow derivative exercises, suggesting routine tax/vesting-related liquidation rather than informed selling. No C-suite CEO/CFO participation. Monitor next 10-Q for any fundamental deterioration, but this cluster alone does not warrant a bearish read.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+5d
ADPT ▼ -6.02% at T+5d
NEUTRAL call -6.02% · α vs SPY -5.88% · entry $26.90 → $25.28
Next anchor: T+20d in 5d
Latest observation: T+13 -9.30% FF3 residual α
Entry = T+0 close
Oct 5, 2026
via day close
T+1d
-2.30%
call -2.30% · α -2.06%
$26.28
settled 22d ago
T+5d
-6.02%
call -6.02% · α -5.88%
$25.28
settled 16d ago
T+20d
Pending
in 5d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Two senior executives at Adaptive Biotechnologies (Chief People Officer and President/COO) sold a combined ~$390K in open-market sales on the same day. The sales follow derivative exercises by the CPO that generated shares at low strike prices, consistent with routine post-vesting liquidation. The dollar value is ~0.12% of market cap — modest and within normal insider diversification patterns. No material bearish signal.

Key Financial Metrics

Direction
selling
Total Value
$926.0K
Insiders
2

Key Facts

  • Chief People Officer Lo Francis sold 26,792 shares total for ~$758K on Oct 1, 2026, following derivative exercises at $0-$8.46 strike prices
  • President and COO Julie Rubinstein sold 6,100 shares for ~$168K on Oct 1, 2026
  • Total open-market sales by both insiders: ~$926K (combining Lo's two sales and Rubinstein's sale)
  • Sales represent ~0.28% of market cap — below the 0.5% materiality threshold
  • All sales occurred on the same day, consistent with a common blackout-window opening or 10b5-1 plan

Financial Impact

~$926K in insider open-market sales, ~0.28% of market cap

insider ownership

Risk Factors

  • Insiders sold on the same day, which could indicate coordinated awareness of near-term headwinds

Investment Themes

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ADPT-1791245779773
28 reports for ADPT
Performance horizon
45% Hit rate @ T+20 5 of 11 directional calls Went positive at some point 7 of 11 best @ T+60▲ +56.41%May 5, 2026
Filters
Rows
Reports for ADPT — sortable, filterable
TypeNow
Oct 6, 2026
21d ago
144
NEUTRAL ★ 2/10
$26.28awaiting T+20—$27.66 (+5.25%)
Oct 5, 2026
22d ago
Insider Cluster
NEUTRAL ★ 3/10
$26.90awaiting T+20—$27.66 (+2.83%)
Sep 25, 2026
4w ago
Press Release
BULLISH ★ 6/10
$29.43 $25.51▼ −13.32%▼ −11.84%$27.66 (−6.01%)
Sep 18, 2026
5w ago
Insider Cluster
BEARISH ★ 5/10
$27.86 $23.95▲ +14.03%▲ +13.13%$27.66 (+0.72%)
Aug 20, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$25.99 $27.86▲ +7.20%▲ +7.72%$27.66 (+6.43%)
Aug 19, 2026
9w ago
Insider Cluster
BEARISH ★ 5/10
$25.44 $28.55▼ −12.22%▼ −12.22%$27.66 (−8.73%)
Aug 18, 2026
10w ago
144
NEUTRAL ★ 3/10
$25.49 $26.68▲ +4.67%▲ +6.19%$27.66 (+8.51%)
Aug 17, 2026
10w ago
144
BEARISH ★ 4/10
$24.56 $27.67▼ −12.66%▼ −13.97%$27.66 (−12.62%)
Jul 29, 2026
12w ago
Institutional Cluster
BEARISH ★ 4/10
$24.18 $26.44▼ −9.35%▼ −5.38%$27.66 (−14.39%)
Jul 23, 2026
13w ago
Insider Cluster
NEUTRAL ★ 4/10
$22.27 $25.99▲ +16.70%▲ +13.08%$27.66 (+24.20%)
Showing 10 of 28

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Report published Oct 5, 2026