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SC 13G/A ·Filed Oct 13, 2026

LBRX

LB PHARMACEUTICALS INC
NEUTRAL
Impact 2/10
Horizonimmediate Processed12d 22h ago SEC0000019617-26-000360
Passive stake amendment
Actionable Insight • Neutral

Monitor for any future amendments that cross the 5% threshold or convert to a 13D filing, which would signal a shift in intent. For now, this is a routine administrative update with no trading implications.

DirectionNeutral
Confidencehigh
Horizonimmediate
Latest settled — T+5d
LBRX ▲ +17.85% at T+5d
NEUTRAL call +17.85% · α vs SPY +19.00% · entry $34.79 → $41.00
Next anchor: T+20d in 15d
Latest observation: T+8 +4.46% FF3 residual α
Entry = T+0 close
Oct 13, 2026
via day close
T+1d
-2.27%
call -2.27% · α -1.19%
$34.00
settled 12d ago
T+5d
+17.85%
call +17.85% · α +19.00%
$41.00
settled 6d ago
T+20d
Pending
in 15d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

JPMorgan Chase & Co. filed an amended Schedule 13G disclosing beneficial ownership of 1,401,790 shares of LB Pharmaceuticals Inc. common stock, representing 4.3% of shares outstanding as of September 30, 2026. The filing is a routine passive stake update with no change in investment intent, and the stake remains below the 5% threshold, indicating no material escalation.

Key Financial Metrics

Stake
4.3%
Investor
JPMorgan Chase & Co.

Key Facts

  • JPMorgan Chase & Co. reported beneficial ownership of 1,401,790 shares of LB Pharmaceuticals Inc. common stock.
  • The stake represents 4.3% of outstanding shares as of September 30, 2026.
  • The filing is an amendment to Schedule 13G under Rule 13d-1(b), confirming passive investment intent.
  • JPMorgan disclaims beneficial ownership of shares held by its subsidiaries, including JPMorgan Asset Management entities and JPMorgan Chase Bank.

Financial Impact

No financial impact — passive stake disclosure below 5% threshold.

Risk Factors

  • No material risks identified from this filing.

Investment Themes

Documents Analyzed

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

DocumentAccession Number
SC 13G/A Filing (Primary)0000019617-26-000360
Document: 0000019617-26-000360-index.html0000019617-26-000360
Document: 0000019617-26-000360.txt0000019617-26-000360
17 reports for LBRX
Performance horizon
100% Hit rate @ T+60 4 of 4 directional calls Went positive at some point 7 of 7 best @ T+20▲ +36.55%Jul 22, 2026
Filters
Rows
Reports for LBRX — sortable, filterable
TypeNow
Oct 13, 2026
12d ago
SC 13G/A
NEUTRAL ★ 2/10
$34.79awaiting T+60—$39.75 (+14.26%)
Oct 6, 2026
20d ago
EFFECT
BEARISH ★ 5/10
$34.26awaiting T+60—$39.75 (−16.02%)
Sep 15, 2026
5w ago
8-K
NEUTRAL ★ 3/10
$43.04awaiting T+60—$39.75 (−7.64%)
Sep 3, 2026
7w ago
8-K
NEUTRAL ★ 4/10
$47.52awaiting T+60—$39.75 (−16.35%)
Aug 11, 2026
10w ago
8-K
BULLISH ★ 7/10
$45.33awaiting T+60—$39.75 (−12.31%)
Aug 11, 2026
10w ago
Press Release
BULLISH ★ 7/10
$45.33awaiting T+60—$39.75 (−12.31%)
Jul 29, 2026
12w ago
8-K
MIXED ★ 6/10
$39.00 $39.42▲ +1.08%▼ −3.65%$39.75 (+1.92%)
Jul 22, 2026
13w ago
8-K
BULLISH ★ 6/10
$35.84 $36.69▲ +2.37%▼ −0.89%$39.75 (+10.91%)
Jul 22, 2026
13w ago
Press Release
BULLISH ★ 6/10
$35.84 $36.69▲ +2.37%▼ −0.89%$39.75 (+10.91%)
Jun 10, 2026
19w ago
8-K
NEUTRAL ★ 3/10
$28.54awaiting T+60—$39.75 (+39.28%)
Showing 10 of 17

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Report published Oct 13, 2026