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Insider Cluster (2 insiders) ·Filed May 26, 2026

SER

Serina Therapeutics, Inc.
MIXED
Impact 5/10
Horizonweeks Processed5mo ago
Insider cluster: 2 insiders, $38K total
Actionable Insight ◆ Mixed

The insider buys are small and may reflect confidence in SER-252 clinical progress, but the S-3 resale registration filed 4 days later creates massive overhang. Watch for any Form 4 filings by Dr. Bailey or other PIPE participants selling into the registration — that would confirm the bearish dilution thesis. The next catalyst is TFL data from the SAD arm in H1 2027, providing a long wait with significant dilution risk in the interim.

DirectionMixed
Confidencemedium
Horizonweeks
Final — all horizons settled through T+60d ⚠ clustered
SER ▲ +47.22% at T+60d
NEUTRAL call +47.22% · α vs SPY +45.34% · entry $1.80 → $2.65
Entry = T+0 close
May 26, 2026
via day close
T+1d
+8.33%
call +8.33% · α +7.78%
$1.95
settled 5mo ago
T+5d
-0.56%
call -0.56% · α -1.02%
$1.79
settled 5mo ago
T+20d
+1.11%
call +1.11% · α +3.01%
$1.82
settled 4mo ago
T+60d
+47.22%
call +47.22% · α +45.34%
$2.65
settled 2mo ago

Price Chart

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Executive Summary

Two directors at Serina Therapeutics made open-market purchases totaling $38K over a 3-day window, representing ~0.13% of the $30M market cap. This follows the company's Q1 2026 earnings release (net loss widened to -$6.9M) and a recently filed S-3 registration for up to 16.45M shares (potential >100% dilution). The insider buys are modest in size and occur amid a capital raise registration that enables selling shareholders to exit, making the signal ambiguous.

Key Financial Metrics

Direction
buying
Total Value
$38.0K
Insiders
2

Key Facts

  • Two directors purchased $38K in open-market transactions over 3 days (May 19–21, 2026).
  • Purchases represent ~0.13% of the $30M market cap — below the 0.5% materiality threshold.
  • S-3 filed May 22 registers up to 16.45M shares for resale by PIPE investors, including insider Dr. Gregory H. Bailey.
  • Q1 2026 net loss widened to -$6.9M from -$4.8M YoY; cash position $24.5M as of March 31, 2026.
  • Phase 1b registrational study of SER-252 underway; TFL data from SAD arm targeted for H1 2027.

Financial Impact

Insider purchases of $38K are trivial relative to $30M market cap; S-3 registration enables up to ~110% dilution at current share count.

dilutioncash runway

Risk Factors

  • S-3 registration enables >100% dilution from PIPE shares and warrants; selling pressure likely.
  • Going concern doubt flagged in Q1 2026 10-Q; net loss widening with no near-term revenue.
  • Insider purchases are small relative to market cap and may be symbolic rather than conviction-driven.

Market Snapshot

Exchange
NYSE
Sector
Pharmaceutical Preparations
Analyst Consensus
83% bullish (6 analysts)

Investment Themes

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-SER-1779838439269
9 reports for SER
Performance horizon
75% Hit rate @ T+5 3 of 4 directional calls Went positive at some point 3 of 4 best @ T+5▲ +5.73%May 22, 2026
Filters
Rows
Reports for SER — sortable, filterable
TypeNow
Sep 9, 2026
6w ago
8-K
BULLISH ★ 6/10
$2.57 $2.16▼ −15.95%▼ −14.86%$1.72 (−33.07%)
Jul 23, 2026
13w ago
Press Release
MIXED ★ 5/10
$2.09 $2.04▼ −2.39%▼ −2.87%$1.72 (−17.70%)
Jul 22, 2026
13w ago
8-K
NEUTRAL ★ 2/10
$2.09 $2.04▼ −2.39%▼ −2.87%$1.72 (−17.70%)
Jun 4, 2026
20w ago
EFFECT
BEARISH ★ 7/10
$1.86 $1.81▲ +2.69%▲ +0.14%$1.72 (+7.53%)
May 26, 2026
21w ago
Insider Cluster
MIXED ★ 5/10
$1.80 $1.79▼ −0.56%▼ −1.02%$1.72 (−4.44%)
May 26, 2026
21w ago
Insider Cluster
BEARISH ★ 5/10
$1.80 $1.79▲ +0.56%▲ +1.02%$1.72 (+4.44%)
May 22, 2026
22w ago
S-3
BEARISH ★ 7/10
$1.92 $1.81▲ +5.73%▲ +6.81%$1.72 (+10.42%)
Mar 27, 2026
30w ago
10-K/A
NEUTRAL ★ 2/10
$2.27 $2.15▼ −5.29%▼ −9.15%$1.72 (−24.23%)
Mar 25, 2026
30w ago
Press Release
MIXED ★ 7/10
$2.61 $2.12▼ −18.77%▼ −20.41%$1.72 (−34.10%)
Showing 9 of 9

US Market Status

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Report published May 26, 2026