Five Narrow Lane Discloses $4.5M Convertible Debenture Stake in Expion Energy
XPON has more than doubled off its 52-week low of $2.77 on elevated volume (3.3× avg).
Summary
Five Narrow Lane, LP — managed by former CEO Joseph Hammer — disclosed a $4.5M convertible debenture stake in Expion Energy with a $4.25 conversion price, 9.99% ownership cap, and rights to participate in future financings.
Key Events · Ownership and Investor Activity · XPON
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Five Narrow Lane Identified as $4.5M Debenture Holder
The 13D names Five Narrow Lane, LP as the purchaser of the $4.5M 8% Convertible Debenture due 2029, managed by former CEO Joseph Hammer and Arie Rabinowitz.
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Conversion Terms Set at $4.25 Per Share
The debenture converts into Series A-1 Preferred Stock at $4.25 per share — a 43% discount to today's $7.52 price — with a warrant for 1,058,609 shares at the same $4.25 exercise price.
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9.99% Beneficial Ownership Blocker
The fund is capped at 9.99% ownership (96,317 shares based on 962,335 outstanding), preventing it from exceeding that threshold without a 61-day notice period.
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33% Participation Right in Future Financings
Five Narrow Lane has the right to participate in up to 33% of any subsequent equity or equity-linked issuance by Expion Energy on the same terms.
Analysis · XPON · Manufacturing
This Schedule 13D reveals that Five Narrow Lane, LP — a fund managed by former CEO Joseph Hammer and Arie Rabinowitz — is the entity behind the $4.5M convertible debenture purchase disclosed earlier this week. The filing adds critical new details: the debenture converts into Series A-1 Preferred Stock at $4.25 per share, carries a 9.99% beneficial ownership blocker, and grants the fund participation rights in up to 33% of future financings. For a micro-cap company that just completed a 1-for-12 reverse split and reported a $1.34 per share Q2 loss, this structured financing with anti-dilution protections and a $91M additional investment right represents significant potential overhang on the stock.
How filings like this one have moved
In the 30 days to Sep 11, 2026, 30.5% of the 1973 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.21%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, XPON was trading at $7.52 on NASDAQ in the Manufacturing sector, with a market capitalization of approximately $7.2M. The 52-week trading range was $2.77 to $24.60. This filing was assessed with negative market sentiment and an importance score of 7 out of 10.