Key facts
- This page summarizes RTW INVESTMENTS, LP's Form 4 filing for ALLURION TECHNOLOGIES, INC. (ALUR).
- 8 reported transactions and 8 derivative rows are listed below.
- Accepted by SEC: 23 Jul 2026, 17:10.
RTW INVESTMENTS, LP - 21 Jul 2026 Form 4 Insider Report for ALLURION TECHNOLOGIES, INC. (ALUR)
- Reporting relationship
- 10%+ Owner
- Issuer ticker
- ALUR
- Reported as of
- 21 Jul 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 23 Jul 2026, 17:10:27 UTC
- Prior SEC filing
- 29 Apr 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Roderick Wong, M.D. - For RTW Investments, L.P., By: Roderick Wong, M.D., Managing Partner
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
RTW INVESTMENTS, LP filed Form 4 for ALLURION TECHNOLOGIES, INC. (ALUR) on 23 Jul 2026.
Change
- Previous filing in this sequence was filed on 29 Apr 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (2)
CIK 0001493215
Primary reporting owner
RTW INVESTMENTS, LP
- Relationship
- 10%+ Owner
- Address
- 40 10TH AVENUE, 7TH FLOOR, NEW YORK
- Signature
- /s/ Roderick Wong, M.D. - For RTW Investments, L.P., By: Roderick Wong, M.D., Managing Partner
- Signature date
- 23 Jul 2026
CIK 0001493280
WONG RODERICK
- Relationship
- 10%+ Owner
- Address
- 40 10TH AVENUE, 7TH FLOOR, NEW YORK
- Signature
- /s/ Roderick Wong, M.D.
- Signature date
- 23 Jul 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -209,254
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F1, F2, F3
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -209,254
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F1, F2, F3
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -161,807
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F4, F5
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -161,807
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F4, F5
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -19,934
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F6, F7
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -19,934
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F6, F7
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -1,771
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F8, F9
ALUR
transaction
Common Stock, $0.0001 par value per share
Other
- Transaction value
- Shares
- -1,771
- Change %
- -100%
- Price
- Shares after
- 0
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Footnotes
- F2, F8, F9
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +209,254
- Change %
- Price
- Shares after
- 209,254
- Date
- 21 Jul 2026
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 209,254
- Exercise price
- $0.000100
- Footnotes
- F1, F2, F3, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +209,254
- Change %
- Price
- Shares after
- 209,254
- Date
- 21 Jul 2026
- Ownership
- See Footnotes
- Underlying class
- Common Stock
- Underlying amount
- 209,254
- Exercise price
- $0.000100
- Footnotes
- F1, F2, F3, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +161,807
- Change %
- Price
- Shares after
- 161,807
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 161,807
- Exercise price
- $0.000100
- Footnotes
- F2, F4, F5, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +161,807
- Change %
- Price
- Shares after
- 161,807
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 161,807
- Exercise price
- $0.000100
- Footnotes
- F2, F4, F5, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +19,934
- Change %
- Price
- Shares after
- 19,934
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 19,934
- Exercise price
- $0.000100
- Footnotes
- F2, F6, F7, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +19,934
- Change %
- Price
- Shares after
- 19,934
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 19,934
- Exercise price
- $0.000100
- Footnotes
- F2, F6, F7, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +1,771
- Change %
- Price
- Shares after
- 1,771
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 1,771
- Exercise price
- $0.000100
- Footnotes
- F2, F8, F9, F10
ALUR
transaction
Derivative
Pre-Funded Warrant (Right to Buy)
Other
- Transaction value
- Shares
- +1,771
- Change %
- Price
- Shares after
- 1,771
- Date
- 21 Jul 2026
- Ownership
- See footnotes
- Underlying class
- Common Stock
- Underlying amount
- 1,771
- Exercise price
- $0.000100
- Footnotes
- F2, F8, F9, F10
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Section 16 status
RTW INVESTMENTS, LP is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.
Explanation of responses 10 footnotes
Footnote F1
On July 21, 2026, RTW Master Fund, Ltd. ("Master Fund") entered into an Exchange Agreement with the Issuer pursuant to which the Master Fund exchanged, for no additional consideration, 209,254 shares of the Issuer's Common Stock for a pre-funded warrant exercisable for up to 209,254 shares of the Issuer's Common Stock at an exercise price of $0.0001 per share (a "Pre-Funded Warrant").
Footnote F2
RTW Investments, LP (the "Adviser") manages certain funds that directly hold the securities reported herein, including the Master Fund, RTW Innovation Master Fund, Ltd. ("RTW Innovation"), RTW Biotech Opportunities Operating Ltd. ("RTW Biotech Fund") and other funds or accounts managed by the Adviser (each, an "Other RTW Fund"). Roderick Wong, M.D. serves as the Managing Partner and Chief Investment Officer of the Adviser. Each Reporting Person disclaims beneficial ownership of the securities reported on this Form 4 except to the extent of its or his pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.
Footnote F3
Held directly by Master Fund.
Footnote F4
On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which the RTW Innovation exchanged, for no additional consideration, 161,807 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 161,807 shares of the Issuer's Common Stock.
Footnote F5
Held directly by RTW Innovation.
Footnote F6
On July 21, 2026, RTW Biotech Fund entered into an Exchange Agreement with the Issuer pursuant to which the RTW Biotech Fund exchanged, for no additional consideration, 19,934 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 19,934 shares of the Issuer's Common Stock.
Footnote F7
Held directly by RTW Biotech Fund.
Footnote F8
On July 21, 2026, RTW Innovation entered into an Exchange Agreement with the Issuer pursuant to which Other RTW Fund exchanged, for no additional consideration, 1,771 shares of the Issuer's Common Stock for a Pre-Funded Warrant exercisable for 1,771 shares of the Issuer's Common Stock.
Footnote F9
Held by an Other RTW Fund.
Footnote F10
The Pre-Funded Warrant has no expiration date and is exercisable immediately. Notwithstanding the foregoing, the holder shall not be entitled to exercise the Pre-Funded Warrant to the extent that it would cause the aggregate number of shares of Common Stock beneficially owned by the holder, together with its Attribution Parties (as defined in the Pre-Funded Warrant), to exceed 9.99% of the total number of issued and outstanding shares of Common Stock of the Issuer following such exercise.
SEC remarks
On June 18, 2026, the Issuer effected a 1-for-15 reverse stock split. The share counts herein reflect the reverse stock split.