Security key
02008G201
ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share (ALUR)
CUSIP: 02008G201
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Total 13F shares
- 2
- Total 13F value
- $1
- Share change
- -6,561,879
- SEC-reported price per share
- $0.50
- Number of holders
- 1
- Value change
- -$8,084,722
- Number of sells
- 22
- Shares outstanding
- 14,952,868
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
1
Top holders
1
ALUR full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 2025
ALLURION TECHNOLOGIES, INC. SEC filings
ALLURION TECHNOLOGIES, INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 02008G201
Recent filing periods:
Ownership snapshot
Top reported holders of ALUR - ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share (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
26 Feb 2026
13D/G
3/4/5
13F
Lead comparable stake: 39%
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 39%.
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
39%
Leavitt Equity Partners III, L.P.
7.8%
Brendan M. Gibbons
0.07%
Ojas Buch
0.07%
Michael R. Davin
0.01%
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 |
13D/G
3/4/5
13F
Director, 10%+ Owner · Company
|
39%
|
$8,542,574
5,891,430 shares
|
$0 | 26 Feb 2026 |
| Leavitt Equity Partners III, L.P. |
13D/G
|
7.8%
|
$198,988
462,762 shares
|
$0 | 01 Jul 2024 |
| Brendan M. Gibbons |
3/4/5
Chief Legal Officer
|
0.07%
|
$16,132
10,408 shares
|
— | 31 Dec 2025 |
| Ojas Buch |
3/4/5
Chief Operating Officer
|
0.07%
|
$15,845
10,223 shares
|
— | 31 Dec 2025 |
| Michael R. Davin |
3/4/5
Director
|
0.01%
|
$1,809
1,206 shares
|
-$4,918 | 03 Oct 2025 |
| Lunt Capital Management, Inc. |
13F
Company
|
1.1%
|
$204,999
166,666 shares
|
— | 31 Dec 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.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1
Shares
2
Rows available
1
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
25
Q1 2026 holders
1
Holder diff
-24
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend