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Insider Cluster (3 insiders) ·Filed Aug 18, 2026

ACHR

Archer Aviation Inc.
BEARISH
Impact 4/10
Horizonweeks Processed2mo ago
Insider cluster: 3 insiders, $0.5M total
Actionable Insight ▼ Bearish

The modest insider sales, while consolidated among top executives, are routine in size and follow standard derivative exercise patterns. The more material story is the Wisk Aero acquisition — traders should watch for regulatory filings (HSR clearance) and integration milestones. A larger insider buy cluster would be needed to signal conviction post-deal.

DirectionBearish
Confidencemedium
Horizonweeks
Latest settled — T+20d
ACHR ▼ -16.28% at T+20d
SHORT call ✓ call won +16.28% · α vs SPY +14.33% · entry $6.45 → $5.40
Next anchor: T+60d in 14d
Latest observation: T+46 +31.00% FF3 residual α
Entry = T+0 close
Aug 18, 2026
via day close
T+1d
-5.58%
call +5.58% · α +4.74%
$6.09
settled 2mo ago
T+5d
-8.53%
call +8.53% · α +8.14%
$5.90
settled 2mo ago
T+20d
-16.28%
call +16.28% · α +14.33%
$5.40
settled 6w ago
T+60d
Pending
in 14d

Price Chart

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Executive Summary

Three C-suite insiders at Archer Aviation (President, Interim CFO, CAO) made open-market sales totaling $475K on August 17, 2026, just days after the announcement of the transformative Wisk Aero acquisition and Q2 earnings. The sales follow a large wave of derivative exercises on August 15, suggesting insiders are cashing out stock from vesting/exercises. While the dollar amount is modest relative to Archer's $4.9B market cap (~0.01%), the timing—less than two weeks after a major acquisition and earnings—raises caution, though the sales are likely liquidity-driven rather than a negative signal on the deal.

Key Financial Metrics

Direction
selling
Total Value
$475.0K
Insiders
3

Key Facts

  • President, Interim CFO, and CAO sold a combined $475K in open-market sales on August 17 at ~$6.41/share.
  • The three insiders had exercised a large block of derivatives on August 15 with zero cash cost, preceding the sales.
  • Sales occurred 8 days after the announcement of the Wisk Aero acquisition and Q2 earnings release.
  • The total sale value is approximately 0.01% of Archer's $4.9B market cap, well below the 0.1% materiality threshold.
  • Cross-filing amplification check: none of the triggering context pairs (e.g., cluster-earnings, cluster-agreement) are statistically significant for this filing's type, so no override is applied.

Financial Impact

Insider sales total $475K — trivial relative to $4.9B market cap (0.01%)

dilutioninsider selling

Risk Factors

  • Insider sales may amplify negative sentiment given the stock's recent volatility post-acquisition.
  • Further equity issuance from the Wisk deal ($200M warrants at $13/$17.88) could pressure the stock.
  • Cash burn guidance ($170-200M Q3 Adj. EBITDA loss) remains high for a pre-revenue eVTOL company.

Market Snapshot

Exchange
NYSE
Sector
Aircraft
Analyst Consensus
73% bullish (15 analysts)

Investment Themes

Industrials & Manufacturing

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ACHR-1787098126780
24 reports for ACHR
Performance horizon
50% Hit rate @ T+20 2 of 4 directional calls Went positive at some point 3 of 4 best @ T+1▲ +8.47%Aug 10, 2026
Filters
Rows
Reports for ACHR — sortable, filterable
TypeNow
Sep 24, 2026
4w ago
8-K
NEUTRAL ★ 4/10
$5.71 $3.80▼ −33.45%▼ −33.03%$3.94 (−31.00%)
Sep 16, 2026
5w ago
25-NSE
NEUTRAL ★ 3/10
$5.22 $4.44▼ −14.94%▼ −18.12%$3.94 (−24.52%)
Sep 4, 2026
7w ago
8-K
NEUTRAL ★ 2/10
$5.83 $4.65▼ −20.24%▼ −21.95%$3.94 (−32.42%)
Aug 21, 2026
9w ago
Insider Cluster
NEUTRAL ★ 3/10
$6.07 $5.69▼ −6.26%▼ −7.57%$3.94 (−35.09%)
Aug 18, 2026
10w ago
Insider Cluster
BEARISH ★ 4/10
$6.45 $5.40▲ +16.28%▲ +14.33%$3.94 (+38.91%)
Aug 10, 2026
11w ago
8-K
MIXED ★ 7/10
$6.79 $5.50▼ −19.00%▼ −17.94%$3.94 (−41.97%)
Aug 10, 2026
11w ago
8-K
BULLISH ★ 8/10
$6.26 $5.83▼ −6.87%▼ −5.95%$3.94 (−37.06%)
Aug 8, 2026
11w ago
Institutional Cluster
BEARISH ★ 5/10
$6.26 $5.83▲ +6.87%▲ +5.95%$3.94 (+37.06%)
Jun 24, 2026
17w ago
DEFA14A
NEUTRAL ★ 3/10
$5.05 $5.18▲ +2.57%▲ +0.64%$3.94 (−21.98%)
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$5.30 $4.85▼ −8.49%▼ −10.38%$3.94 (−25.66%)
Showing 10 of 24

US Market Status

Market Closed — Opens Thu (12h 57m)

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Report published Aug 18, 2026