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424B5 ·Filed Oct 16, 2026

ALEC

Alector, Inc.
BEARISH
Impact 6/10
Horizonimmediate Processed10d 18h ago SEC0001193125-26-424215
Notable filing: 424B5
Actionable Insight ▼ Bearish

The offering was priced at a 7.3% premium to the prior close ($2.05 vs $1.91), suggesting strong underwriter demand. The proceeds combined with the $100M Genentech upfront provide significant cash runway. Monitor for any clinical data readouts from the AL050 program or the ongoing Phase 2 nivisnebart trial that could impact the stock.

DirectionBearish
Confidencehigh
Horizonimmediate
Latest settled — T+5d ⚠ clustered
ALEC ▼ -6.15% at T+5d
SHORT call ✓ call won +6.15% · α vs SPY +6.01% · entry $1.95 → $1.83
Next anchor: T+20d in 17d
Entry = T+0 close
Oct 16, 2026
via day close
T+1d
+1.03%
call -1.03% · α -0.69%
$1.97
settled 8d ago
T+5d
-6.15%
call +6.15% · α +6.01%
$1.83
settled 4d ago
T+20d
Pending
in 17d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Alector is offering 36,600,000 shares of common stock at $2.05 per share, expecting net proceeds of approximately $70.2 million. The offering follows a recent license agreement with Genentech for the AL050 program, which included a $100 million upfront payment and up to $1.17 billion in milestones. The capital raise will fund general corporate purposes including R&D and manufacturing.

Key Facts

  • Offering 36,600,000 shares of common stock at $2.05 per share
  • Expected net proceeds of approximately $70.2 million
  • Offering price of $2.05 vs last reported sale price of $1.91 on October 15, 2026
  • Total shares outstanding post-offering: 148,256,805 (from 111,656,805)
  • Dilution of $1.64 per share to new investors based on net tangible book value
  • Net tangible book value as of June 30, 2026 was $(9.97) million, or $(0.09) per share
  • Underwriters: Morgan Stanley and BTIG, each purchasing 18,300,000 shares
  • Underwriting discount of $0.123 per share, total $4,501,800
  • Delivery expected on or about October 19, 2026
  • Prospectus dated October 16, 2026
  • Recent Genentech license agreement (September 30, 2026) with $100M upfront and up to $1.17B in milestones

Financial Impact

Dilutive equity offering raising approximately $70.2 million net proceeds, representing a 32.8% increase in shares outstanding (36.6M new shares vs 111.7M pre-offering). Immediate dilution of $1.64 per share for new investors.

dilutionshares outstandingcash

Risk Factors

  • Immediate and substantial dilution of 32.8% to existing shareholders
  • Stock trading at $1.91 before offering, below the $2.05 offering price, indicating potential downward pressure
  • Pre-revenue biotechnology company with no approved products
  • Broad discretion in use of proceeds may lead to inefficient capital allocation

Investment Themes

Documents Analyzed

This report is based on 4 SEC documents filed with EDGAR.

DocumentAccession Number
424B5 Filing (Primary)0001193125-26-424215
Document: 0001193125-26-424215-index-headers.html0001193125-26-424215
Document: 0001193125-26-424215-index.html0001193125-26-424215
Document: 0001193125-26-424215.txt0001193125-26-424215
16 reports for ALEC
Performance horizon
100% Hit rate @ T+60 3 of 3 directional calls Went positive at some point 6 of 6 best @ T+60▲ +26.67%May 7, 2026
Filters
Rows
Reports for ALEC — sortable, filterable
TypeNow
Oct 26, 2026
today
SC 13G
NEUTRAL ★ 4/10
$1.82awaiting T+60—$1.95 (+6.87%)
Oct 23, 2026
3d ago
SC 13G
BULLISH ★ 5/10
$1.84awaiting T+60—$1.95 (+5.94%)
Oct 16, 2026
10d ago
424B5
BEARISH ★ 6/10
$1.95awaiting T+60—$1.95 (+0.26%)
Oct 16, 2026
10d ago
8-K
BEARISH ★ 7/10
$1.95awaiting T+60—$1.95 (+0.26%)
Oct 14, 2026
13d ago
8-K
NEUTRAL ★ 3/10
$1.88awaiting T+60—$1.95 (+3.46%)
Oct 5, 2026
22d ago
8-K
BULLISH ★ 7/10
$1.99awaiting T+60—$1.95 (−2.26%)
Oct 5, 2026
22d ago
Press Release
BULLISH ★ 7/10
$1.99awaiting T+60—$1.95 (−2.26%)
Sep 18, 2026
5w ago
SC 13G
NEUTRAL ★ 4/10
$1.93awaiting T+60—$1.95 (+0.78%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$2.47awaiting T+60—$1.95 (−21.26%)
Aug 15, 2026
10w ago
Institutional Cluster
MIXED ★ 4/10
$2.05awaiting T+60—$1.95 (−5.12%)
Showing 10 of 16

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Report published Oct 16, 2026