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144 ·Filed Mar 31, 2026

MLTX

MoonLake Immunotherapeutics
BEARISH
Impact 6/10
Horizondays Processed6mo ago SEC0000921895-26-000859
Form 144 — notice of proposed sale of securities
Actionable Insight ▼ Bearish

Monitor for actual sales execution through Form 4 filings; given BVF's size and status as a director affiliate, sustained selling could pressure the stock, especially if near-term catalysts are lacking. Consider hedging or reducing exposure if no offsetting positive developments emerge.

DirectionBearish
Confidencehigh
Horizondays
Final — all horizons settled through T+60d
MLTX ▲ +20.52% at T+60d
SHORT call ✗ call lost -20.52% · α vs SPY -7.14% · entry $16.52 → $19.91
Entry = T+0 close
Mar 31, 2026
via day close
T+1d
+5.08%
call -5.08% · α -5.01%
$17.36
settled 7mo ago
T+5d
+17.49%
call -17.49% · α -13.73%
$19.41
settled 7mo ago
T+20d
-2.48%
call +2.48% · α +12.20%
$16.11
settled 6mo ago
T+60d
+20.52%
call -20.52% · α -7.14%
$19.91
settled 4mo ago

Price Chart

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Executive Summary

BVF Partners L.P., a 10% stockholder and affiliate of a director of MoonLake Immunotherapeutics, filed a Form 144 to notify intent to sell up to 3,750,000 shares, valued at approximately $63.5 million based on the March 30, 2026 closing price. The shares were acquired in connection with the company's 2022 business combination.

Key Facts

  • Reporting owner: BVF Partners L.P., a 10% stockholder and affiliate of a director
  • Number of shares proposed for sale: 3,750,000
  • Approximate value of shares: $63,487,500 (based on March 30, 2026 market price)
  • Shares acquired: April 5, 2022, via conversion of private shares in connection with the business combination
  • Filing date: March 31, 2026
  • Broker-dealer of record: Goldman Sachs & Co. LLC

Financial Impact

Up to $63.5 million in potential near-term selling pressure, representing approximately 5.3% of the company's $1.2B market cap

market capshare pricetrading volumeinsider sentiment

Risk Factors

  • Potential downward pressure on share price if the full amount is sold in a short period
  • Signal of reduced confidence from a major shareholder and director affiliate, especially if no reinvestment or strategic rationale is disclosed

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations

Investment Themes

Biotech & Drug Discovery

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0000921895-26-000859
Document: 0000921895-26-000859-index.html0000921895-26-000859
Document: 0000921895-26-000859.txt0000921895-26-000859
13 reports for MLTX
Performance horizon
63% Hit rate @ T+60 5 of 8 directional calls Went positive at some point 5 of 11 best @ T+60▲ +45.35%Jul 20, 2026
Filters
Rows
Reports for MLTX — sortable, filterable
TypeNow
Aug 11, 2026
10w ago
Institutional Cluster
BULLISH ★ 5/10
$17.23awaiting T+60—$11.85 (−31.22%)
Aug 10, 2026
11w ago
8-K
BULLISH ★ 7/10
$17.33awaiting T+60—$11.85 (−31.62%)
Aug 10, 2026
11w ago
Press Release
BULLISH ★ 7/10
$17.33awaiting T+60—$11.85 (−31.62%)
Jul 20, 2026
14w ago
Insider Cluster
BEARISH ★ 4/10
$19.05 $10.41▲ +45.35%▲ +50.19%$11.85 (+37.80%)
Jun 25, 2026
17w ago
8-K
BEARISH ★ 6/10
$19.99 $12.39▲ +38.02%▲ +41.87%$11.85 (+40.72%)
Jun 23, 2026
17w ago
Press Release
BEARISH ★ 6/10
$20.00 $12.20▲ +39.00%▲ +42.29%$11.85 (+40.75%)
Jun 22, 2026
18w ago
8-K
BULLISH ★ 7/10
$22.16 $12.20▼ −44.95%▼ −46.69%$11.85 (−46.53%)
Jun 21, 2026
18w ago
Press Release
BULLISH ★ 7/10
$22.16 $12.20▼ −44.95%▼ −46.69%$11.85 (−46.53%)
Jun 11, 2026
19w ago
Institutional Cluster
BEARISH ★ 5/10
$17.75 $15.01▲ +15.44%▲ +19.83%$11.85 (+33.24%)
Jun 1, 2026
21w ago
8-K
NEUTRAL ★ 2/10
$18.82 $15.56▼ −17.32%▼ −18.55%$11.85 (−37.04%)
Showing 10 of 13

US Market Status

Market Closed — Opens in 26m

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Report published Mar 31, 2026