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EFFECT ·Filed Aug 21, 2026

ALLO

Allogene Therapeutics, Inc.
BEARISH
Impact 4/10
Horizonweeks Processed2mo ago SEC9999999995-26-002725
IPO/offering going effective
Actionable Insight ▼ Bearish

Monitor for any takedown announcement (prospectus supplement) under this shelf, which would signal an imminent capital raise and likely near-term dilution. The shelf is now 'on the shelf' — no immediate action required, but the overhang may cap upside until the company's pipeline catalysts materialize.

DirectionBearish
Confidencehigh
Horizonweeks
Latest settled — T+20d ⚠ clustered
ALLO ▼ -19.14% at T+20d
SHORT call ✓ call won +19.14% · α vs SPY +18.86% · entry $2.09 → $1.69
Next anchor: T+60d in 19d
Latest observation: T+44 +29.79% FF3 residual α
Entry = T+0 close
Aug 21, 2026
via day close
T+1d
-2.87%
call +2.87% · α +2.58%
$2.03
settled 2mo ago
T+5d
-3.35%
call +3.35% · α +3.82%
$2.02
settled 2mo ago
T+20d
-19.14%
call +19.14% · α +18.86%
$1.69
settled 5w ago
T+60d
Pending
in 19d

Price Chart

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Executive Summary

Allogene Therapeutics' S-3 shelf registration (File No. 333-298268) became effective on August 20, 2026. This allows the company to sell securities — including common stock, preferred stock, debt, or warrants — at any time in one or more offerings, creating a potential dilution overhang for existing common shareholders. The effectiveness is a routine procedural step, but the open shelf gives management flexibility to raise capital opportunistically, which is a modest bearish signal for a clinical-stage biotech with a $770M market cap that may need future funding.

Key Facts

  • S-3 shelf registration (333-298268) declared effective by SEC on August 20, 2026.
  • Allogene can now offer and sell an unspecified amount of common stock, preferred stock, debt securities, and/or warrants from time to time.
  • The company is a clinical-stage biotech (SIC 2836) with no approved products, making the shelf a potential source of future dilution.

Financial Impact

Undisclosed amount — shelf registration allows for offerings of unspecified size at management's discretion.

dilutionshare countpotential future capital raise

Risk Factors

  • Future equity offering under the shelf could dilute existing shareholders by an unknown amount.
  • Clinical-stage biotech with no approved products — any capital raise via this shelf would likely be dilutive and signal cash runway concerns.
  • The shelf's open-ended nature creates persistent uncertainty about timing and size of potential offerings.

Market Snapshot

Exchange
Nasdaq
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
89% bullish (18 analysts)

Investment Themes

Documents Analyzed

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

DocumentAccession Number
EFFECT Filing (Primary)9999999995-26-002725
Document: 9999999995-26-002725-index.html9999999995-26-002725
Document: 9999999995-26-002725.txt9999999995-26-002725
23 reports for ALLO
Performance horizon
70% Hit rate @ T+1 7 of 10 directional calls Went positive at some point 9 of 10 best @ T+60▲ +18.57%Apr 15, 2026
Filters
Rows
Reports for ALLO — sortable, filterable
TypeNow
Oct 27, 2026
today
SC 13G/A
NEUTRAL ★ 2/10
$1.21awaiting T+1—$1.23 (+1.65%)
Oct 21, 2026
6d ago
144
NEUTRAL ★ 2/10
$1.25 $1.25· 0.00%▲ +0.52%$1.23 (−1.60%)
Sep 2, 2026
7w ago
8-K
NEUTRAL ★ 3/10
$1.98 $1.98· 0.00%▼ −1.05%$1.23 (−37.88%)
Aug 21, 2026
9w ago
144
NEUTRAL ★ 2/10
$2.03 $2.17▲ +6.90%▲ +6.58%$1.23 (−39.41%)
Aug 21, 2026
9w ago
EFFECT
BEARISH ★ 4/10
$2.09 $2.03▲ +2.87%▲ +2.58%$1.23 (+41.15%)
Aug 6, 2026
11w ago
Institutional Cluster
BULLISH ★ 5/10
$1.97 $2.01▲ +2.03%▲ +1.42%$1.23 (−37.56%)
Jun 22, 2026
18w ago
8-K
BEARISH ★ 6/10
$2.07 $2.05▲ +0.97%▲ +0.92%$1.23 (+40.58%)
Jun 22, 2026
18w ago
424B5
BEARISH ★ 6/10
$2.07 $2.05▲ +0.97%▲ +0.92%$1.23 (+40.58%)
May 28, 2026
21w ago
DEFA14A
NEUTRAL ★ 3/10
$2.17 $2.15▼ −0.92%▼ −1.18%$1.23 (−43.32%)
May 28, 2026
21w ago
8-K
NEUTRAL ★ 3/10
$2.17 $2.15▼ −0.92%▼ −1.18%$1.23 (−43.32%)
Showing 10 of 23

US Market Status

Market Closed — Opens Thu (11h 40m)

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Report published Aug 21, 2026