RUBI Rubico Inc.

BEARISH Impact: 7/10 424B4
Horizon days Filed May 21, 2026 Processed 24d 22h ago SEC 0001171843-26-003602
Prospectus supplement
Latest settled — T+5d ⚠ clustered
RUBI ▼ -20.68% at T+5d
SHORT call ✓ call won +20.68% · α vs SPY +22.27% · entry $0.7690 → $0.6100
Next anchor: T+20d in 7d
Last close $0.4680 (close Jun 12) · +39.14% from $0.7690 entry (call sign-flipped)
Entry anchored
May 20, 03:59 PM ET
via Databento tick
T+1d
-7.93%
call +7.93% · α +8.38%
$0.7080
settled 24d ago
T+5d
-20.68%
call +20.68% · α +22.27%
$0.6100
settled 17d ago
T+20d
call — · α —
in 7d
T+60d
call — · α —
in 2mo

Executive Summary

Rubico Inc. has priced a best-efforts public offering of up to 5,263,160 units at $0.95 per unit, each consisting of one common share (or pre-funded warrant) and 1.5 Class C warrants, for total gross proceeds of approximately $5.0 million. The offering, placed by Maxim Group LLC, is severely dilutive to existing common shareholders and underscores the company's desperate need for capital, given its sub-$1 million market cap, two tankers and high debt load ($86M+), and repeated reverse stock splits.

Key Financial Metrics

Offering Size
$5.0M
Dilution
209%

Actionable Insight

Massive dilution event certain to pressure the stock. The $0.95 offering price is at the market; no discount is stated but effectively on a best-efforts basis. The huge dilutive overhang (Class C warrants, placement agent warrants, Series G conversion at $0.70 floor, and the B. Riley ELOC for up to $50M) suggests continued equity destruction. Traders should expect heavy selling pressure and possible Nasdaq non-compliance. Monitor for any subsequent draws on the equity line and Series G conversion activity. Short interest likely to increase.

Key Facts

  • Best-efforts offering of up to 5,263,160 units at $0.95/unit, with total gross proceeds of $5,000,002
  • Each unit consists of one common share (or pre-funded warrant at $0.94 per unit) and 1.5 Class C warrants exercisable at $0.95/share for 5 years
  • Placement agent Maxim Group LLC receives 6.0% cash fee ($300,000) plus warrants equal to 5.0% of shares sold at $0.95 strike
  • Net proceeds estimated at ~$4.5 million; net proceeds before expenses $4,700,001.88
  • Offering increases outstanding common shares from 2,512,998 to 7,776,158 (assuming no pre-funded warrants are sold) — dilution of approximately 209% for common shareholders
  • Additional overhang: up to 7,894,740 shares from Class C warrants and 263,158 from placement agent warrants
  • Company has a $50M equity line with B. Riley (ELOC) that it may draw on, plus Series G Preferred Shares convertible into 6,086,207 common shares at $0.70, with potential variable pricing floor at $0.60
  • Company has conducted three reverse stock splits in the past year (1:30, 1:7.8, 1:10) to maintain Nasdaq listing
  • Launch of an IPO registration (F-1) initially sought up to 3.3M units at $2.99; the actual $0.95 price represents a ~68% reduction from that initial assumption
  • Historical performance of past filings on RUBI shows an average T+20 loss of -25.02% across 5 settled reports, with a 20% win rate

Financial Impact

Dilution of ~209% from existing 2.5M shares to 7.8M shares post-offering; potential total diluted share count including all warrants and convertible shares could exceed 22M

dilutionshare countmarket cap

Risk Factors

  • 208% immediate dilution from the offering alone, plus potential overhang of 7.9M warrants and 6.1M Series G conversion
  • Best-efforts structure means final proceeds could be lower, worsening the perceived capital need
  • $50M B. Riley ELOC remains available and could be drawn at management's discretion, adding further dilution
  • Series G Preferred Shares have a variable conversion price at 80% of lowest VWAP over 20 days (floor $0.60), creating a toxic financing dynamic
  • Historical pattern shows substantial post-offering declines (avg -25% at T+20) suggesting the market consistently punishes these dilutive financings

Market Snapshot

Exchange
Nasdaq
Sector
Water Transportation

Documents Analyzed

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

DocumentAccession Number
424B4 Filing (Primary)0001171843-26-003602
Document: 0001171843-26-003602-index-headers.html0001171843-26-003602
Document: 0001171843-26-003602-index.html0001171843-26-003602
Document: 0001171843-26-003602.txt0001171843-26-003602
9 reports for RUBI
Performance horizon
100% Hit rate 4 of 4 directional calls best @ T+20▲ +83.05%May 4, 2026
Filters
Rows
Reports for RUBI — sortable, filterable
Type Now
Jun 12, 2026
2d ago
6-K
BEARISH ★ 6/10
$0.8043 awaiting T+5awaiting T+5$0.4680 (+41.81%)
May 26, 2026
19d ago
6-K
BEARISH ★ 8/10
$0.7020 $0.6000▲ +14.53%▲ +15.61%$0.4680 (+33.33%)
May 21, 2026
24d ago
424B4
BEARISH ★ 7/10
$0.7690 $0.6100▲ +20.68%▲ +22.27%$0.4680 (+39.14%)
May 20, 2026
25d ago
Press Release
BEARISH ★ 8/10
$0.8070 $0.6500▲ +19.45%▲ +20.69%$0.4680 (+42.01%)
May 4, 2026
6w ago
EFFECT
BEARISH ★ 7/10
$3.54 $2.29▲ +35.31%▲ +38.25%$0.4680 (+86.78%)
Apr 7, 2026
9w ago
6-K
NEUTRAL ★ 3/10
$4.03 $3.83▼ −4.96%▼ −8.48%$0.4680 (−88.39%)
Apr 7, 2026
9w ago
Press Release
NEUTRAL ★ 5/10
$4.62 $3.66▼ −20.78%▼ −26.11%$0.4680 (−89.87%)
Apr 7, 2026
9w ago
EFFECT
BEARISH ★ 7/10
$4.62 $3.66▲ +20.78%▲ +26.11%$0.4680 (+89.87%)
Mar 23, 2026
11w ago
Press Release
NEUTRAL ★ 2/10
$6.28 $5.06▼ −19.43%▼ −15.86%$0.4680 (−92.55%)
Showing 9 of 9

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