CABA Cabaletta Bio, Inc.

BEARISH Impact: 7/10 424B5
Horizon immediate Filed May 4, 2026 Processed 16d 12h ago SEC 0001193125-26-202441
Notable filing: 424B5
Latest settled — T+5d ⚠ clustered
CABA ▼ -0.26% at T+5d
SHORT call ✓ call won +0.26% · α vs SPY +3.20% · entry $3.83 → $3.82
Next anchor: T+20d in 13d
Currently $3.44 · +10.18% from $3.83 entry (call sign-flipped)
Entry anchored
May 1, 04:01 PM ET
via Databento tick
T+1d
+8.36%
call -8.36% · α -7.56%
$4.15
settled 15d ago
T+5d
-0.26%
call +0.26% · α +3.20%
$3.82
settled 9d ago
T+20d
call — · α —
in 13d
T+60d
call — · α —
in 2mo

Price Chart

Loading chart...

Executive Summary

Cabaletta Bio is selling 51,725,000 shares of common stock at $2.90 per share in a dilutive follow-on offering, raising approximately $141 million in net proceeds. The offering represents a ~51% increase in shares outstanding (from ~100.5M to ~152.2M), creating immediate dilution of $1.30 per share for new investors. Proceeds will fund expanded clinical development of its lead CAR-T candidate rese-cel and manufacturing scale-up, extending cash runway into mid-2027.

Actionable Insight

The massive ~51% dilution at a ~1.4% discount to the prior close ($2.90 vs $2.94) signals urgent capital needs despite the recent $117M cash balance. The company's auditor included a going concern qualification in the FY2025 10-K, and this offering only extends runway to mid-2027. Watch for potential further dilution as the company will likely need additional capital before reaching profitability. The 60-day lock-up expiration in early July 2026 could create additional selling pressure.

Key Facts

  • Offering of 51,725,000 shares at $2.90 per share, raising $150M gross / ~$141M net proceeds
  • Shares outstanding will increase from ~100.5M to ~152.2M, a ~51% dilution
  • Immediate dilution of $1.30 per share for new investors (offering price $2.90 vs. as-adjusted book value $1.60)
  • Preliminary cash balance of ~$117M as of March 31, 2026; pro-forma cash ~$252.6M after offering
  • Cash runway extended into mid-2027; prior guidance had cash lasting into first half of 2026
  • Underwriters include TD Cowen, Guggenheim Securities, Cantor, and H.C. Wainwright
  • 60-day lock-up for insiders and company from pricing date (May 4, 2026)

Financial Impact

~$141M net proceeds raised; ~51% dilution to existing shareholders; immediate per-share dilution of $1.30

dilutioncash runwayshares outstanding

Risk Factors

  • Massive dilution (~51%) will pressure stock price as new shares hit the market
  • Going concern qualification from auditor indicates financial distress risk
  • Pre-revenue biotech with no approved products; clinical trial failures could destroy remaining value
  • Cash runway only extended to mid-2027; additional capital likely needed before profitability
  • Lock-up expiration in ~60 days could lead to insider selling overhang

Market Snapshot

Exchange
Nasdaq
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
81% bullish (16 analysts)

Documents Analyzed

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

DocumentAccession Number
424B5 Filing (Primary)0001193125-26-202441
Document: 0001193125-26-202441-index-headers.html0001193125-26-202441
Document: 0001193125-26-202441-index.html0001193125-26-202441
Document: 0001193125-26-202441.txt0001193125-26-202441
10 reports for CABA
Performance horizon
33% Hit rate 1 of 3 directional calls best @ T+5▲ +0.26%May 4, 2026
Filters
Rows
Reports for CABA — sortable, filterable
Type Now
May 14, 2026
6d ago
8-K
BEARISH ★ 6/10
awaiting T+5
May 14, 2026
6d ago
Press Release
NEUTRAL ★ 4/10
$3.58 awaiting T+5awaiting T+5$3.44 (−3.91%)
May 14, 2026
6d ago
8-K
BULLISH ★ 7/10
$3.58 awaiting T+5awaiting T+5$3.44 (−3.91%)
May 4, 2026
16d ago
8-K
BEARISH ★ 7/10
$3.83 $3.82▲ +0.26%▲ +3.20%$3.44 (+10.18%)
May 4, 2026
16d ago
424B5
BEARISH ★ 7/10
$3.83 $3.82▲ +0.26%▲ +3.20%$3.44 (+10.18%)
May 4, 2026
16d ago
8-K
NEUTRAL ★ 3/10
$3.83 $3.82▼ −0.26%▼ −3.20%$3.44 (−10.18%)
Apr 28, 2026
22d ago
DEFA14A
NEUTRAL ★ 2/10
awaiting T+5
Apr 20, 2026
4w ago
8-K
BULLISH ★ 7/10
$3.31 $2.91▼ −11.95%▼ −12.86%$3.44 (+4.08%)
Mar 23, 2026
8w ago
Press Release
NEUTRAL ★ 5/10
$2.82 $2.47▼ −12.41%▼ −8.85%$3.44 (+21.99%)
Feb 28, 2026
11w ago
Institutional Cluster
BULLISH ★ 6/10
$3.30 $3.27▼ −0.91%▲ +0.30%$3.44 (+4.24%)
Showing 10 of 10

US Market Status

Market Closed — Opens Thu (< 1m)

Subscribe to SecBot

Get Real-Time SEC Filing Intelligence

Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.

Try SecBot Free Coming soon: SecBot Pro with alerts, watchlists, and API access