RTW restructures its 9.9% stake by swapping 392,766 shares for pre-funded warrants and terminating a prior exchange agreement
ALURD sits 59% above its 52-week low of $2.67 on light trading volume (0.1× avg).
Summary
RTW Investments, which holds 9.9% of Allurion, swapped all 392,766 common shares for pre-funded warrants—removing shares from the float while retaining upside exposure through immediately exercisable warrants with a 9.99% blocker.
Key Events · Ownership and Investor Activity · ALURD
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Share-for-Warrant Exchange
RTW Funds exchanged 392,766 shares of common stock for pre-funded warrants exercisable for an equal number of shares, with a nominal exercise price of $0.0001 per share.
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Prior Exchange Agreement Terminated
Effective July 21, 2026, RTW terminated the Exchange Agreement previously described in Amendment No. 10 to its Schedule 13D.
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Warrant Terms and Ownership Cap
The pre-funded warrants are immediately exercisable but subject to a 9.99% beneficial ownership blocker; they terminate upon foreclosure by senior lenders, voluntary bankruptcy, or holder election.
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No Change in Beneficial Ownership Percentage
RTW continues to report beneficial ownership of 9.9% of outstanding shares, based on 1,000,416 shares outstanding as of May 12, 2026, adjusted for the surrendered shares and the warrants.
Analysis · ALURD · Industrial Applications And Services
In a move that reshapes the share structure of this micro-cap company, RTW Investments—a major institutional holder—exchanged its entire 392,766-share common stock position for pre-funded warrants carrying a nominal $0.0001 exercise price. The restructuring pulls a large block of common stock out of the outstanding share count, which could ease immediate selling pressure, yet the warrants remain exercisable at any time, subject to a 9.99% ownership cap. The transaction also terminates a prior exchange agreement, signaling a strategic repositioning rather than a straightforward exit. For a company with a market cap around $4.25 million, any change in a 9.9% holder's structure carries weight.
How filings like this one have moved
In the 30 days to Oct 5, 2026, 29.2% of the 1496 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.63%. 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, ALURD was trading at $4.25 on OTC in the Industrial Applications And Services sector, with a market capitalization of approximately $4.3M. The 52-week trading range was $2.67 to $49.95. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.