DYN Dyne Therapeutics, Inc.

BEARISH Impact: 6/10 Insider Cluster (2 insiders)
Horizon days Filed Apr 21, 2026 Processed 1mo ago
Insider cluster: 2 insiders, $1.6M total
Latest settled — T+20d ⚠ clustered
DYN ▼ -13.90% at T+20d
SHORT call ✓ call won +13.90% · α vs SPY +18.81% · entry $19.21 → $16.54
Next anchor: T+60d in 7w
Last close $17.37 (close May 22) · +9.58% from $19.21 entry (call sign-flipped)
Entry anchored
Apr 20, 03:59 PM ET
via Databento tick
T+1d
+2.39%
call -2.39% · α -1.38%
$19.67
settled 5w ago
T+5d
-5.47%
call +5.47% · α +6.55%
$18.16
settled 27d ago
T+20d
-13.90%
call +13.90% · α +18.81%
$16.54
settled 6d ago
T+60d
call — · α —
in 7w

Price Chart

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Executive Summary

Two directors at Dyne Therapeutics (DYN) sold over $11.4 million in shares over the past 7 days, including a $4.3 million sale by Dirk Kersten on April 17. The cluster represents more than 0.35% of the company's $3.2B market cap, signaling notable insider selling.

Key Financial Metrics

Direction
selling
Total Value
$11.4M
Insiders
2

Actionable Insight

Sustained, high-value insider selling by multiple directors raises concerns about confidence in near-term prospects. Traders should monitor upcoming clinical trial updates or regulatory filings for catalysts that may explain the divestment, and watch for downward pressure on the stock.

Key Facts

  • Director Dirk Kersten sold 211,974 shares on April 17 for $4.3 million, the largest single transaction in the cluster.
  • Director Jason Rhodes sold 143,175 shares across two days (April 21 and 22) for $2.83 million.
  • Total insider selling over 7 days amounts to $11.4 million across 7 transactions by two directors.
  • All transactions were open-market sales (code S), indicating deliberate divestment.
  • Recent insider activity over the past 30 days totals $13.4 million in sales, suggesting sustained selling pressure.

Financial Impact

$11.4 million in insider sales over 7 days (0.35% of $3.2B market cap)

insider ownershipmarket sentimentshareholder dilution risk

Risk Factors

  • Loss of insider confidence may signal upcoming negative developments or lack of upside catalysts.
  • Heavy selling could precede downward earnings or pipeline updates.
  • Potential for increased share volatility if retail investors react to insider moves.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
85% bullish (20 analysts)

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-DYN-1776975352606
25 reports for DYN
Performance horizon
100% Hit rate 5 of 5 directional calls best @ T+20▲ +13.90%Apr 20, 2026
Filters
Rows
Reports for DYN — sortable, filterable
Type Now
May 20, 2026
3d ago
Press Release
NEUTRAL ★ 2/10
$17.60 awaiting T+5awaiting T+5$17.37 (−1.31%)
May 20, 2026
3d ago
Press Release
BULLISH ★ 7/10
awaiting T+5
May 13, 2026
10d ago
144
NEUTRAL ★ 2/10
awaiting T+5
May 13, 2026
10d ago
144
NEUTRAL ★ 2/10
awaiting T+5
May 11, 2026
12d ago
8-K
NEUTRAL ★ 5/10
$18.46 $16.54▼ −10.40%▼ −10.32%$17.37 (−5.90%)
May 6, 2026
17d ago
144
NEUTRAL ★ 2/10
$17.54 $18.44▲ +5.13%▲ +3.63%$17.37 (−0.97%)
May 6, 2026
17d ago
144
NEUTRAL ★ 2/10
$17.54 $18.44▲ +5.13%▲ +3.63%$17.37 (−0.97%)
May 4, 2026
19d ago
144
NEUTRAL ★ 2/10
$17.47 $18.37▲ +5.15%▲ +3.17%$17.37 (−0.57%)
May 4, 2026
19d ago
144
NEUTRAL ★ 2/10
$17.47 $18.37▲ +5.15%▲ +3.17%$17.37 (−0.57%)
May 4, 2026
19d ago
144
NEUTRAL ★ 2/10
$17.47 $18.37▲ +5.15%▲ +3.17%$17.37 (−0.57%)
Showing 10 of 25

US Market Status

Market Closed — Opens Tue (34h 50m)

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