Holder snapshot 5 signals
Share change
+100
SEC-reported price per share
$0.43
Number of holders
1
Value change
+$43
Number of buys
1
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
5,932,846

Security key

02008G102

Report period

Q2 2025

Institutions

1

Top holders

0

Ownership snapshot

Top reported holders of ALUR - Allurion Technologies, Inc. - Common stock, par value $0.0001 per share (the "Shares") (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
RTW INVESTMENTS, LP
Disclosed value leader
RTW INVESTMENTS, LP
Comparable rows
15/15
Latest evidence
31 Mar 2025
13F 13D/G Lead comparable stake: 18% 13D/G row: RTW INVESTMENTS, LP Showing 1-6 of 15 holder rows.

Quick read

RTW INVESTMENTS, LP leads the comparable SEC ownership view at 18%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens RTW INVESTMENTS, LP's linked filing trail.
Comparable ownership Top 5
RTW INVESTMENTS, LP 18%
Leavitt Equity Partners III, L.P. 7.8%
Establishment Unisphere 0.33%
VANGUARD GROUP INC 0.33%
HRT FINANCIAL LP 0.29%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
RTW INVESTMENTS, LP
13F 13D/G
Company
18%
from 13D/G
$3,370,702
1,050,063 shares
31 Mar 2025
Leavitt Equity Partners III, L.P.
13D/G
7.8%
$198,988
462,762 shares
$0 01 Jul 2024
Establishment Unisphere
13F
Individual
13F
0.33%
$159,521
49,695 shares
31 Mar 2025
VANGUARD GROUP INC
13F
Company
13F
0.33%
$158,465
49,366 shares
31 Mar 2025
HRT FINANCIAL LP
13F
Company
13F
0.29%
$137,000
42,724 shares
31 Mar 2025
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
0.27%
$131,283
40,894 shares
31 Mar 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Archived quarter

Historical 13F summary for Q2 2025

This older quarter remains available as an indexed ownership summary. Detailed holder rows are no longer kept in the hot table for this period.

There are no holders of ALUR - Allurion Technologies, Inc. - Common stock, par value $0.0001 per share (the "Shares") as of Q2 2025.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .