ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share (ALUR)

Q: What does CUSIP 02008G201 represent in this 13F holders report?

CUSIP 02008G201 is the security identifier for ALUR - ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

Q: How many institutions held ALUR - ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share in Q4 2025?

25 institutional investors reported ALUR - ALLURION TECHNOLOGIES, INC. - Common Stock, par value $0.0001 per share for Q4 2025. Use the holders table for investor-level position and value details.

CUSIP: 02008G201

Q4 2025 13F Holders as of 31 Dec 2025

Security type / class: Equity / Common Stock, par value $0.0001 per share
Total 13F shares: 6,650,537
Total 13F value: $8,193,770
Share change: +3,724,169
SEC-reported price per share: $1.23
Number of holders: 25
Value change: +$4,593,265
Number of buys: 11
Number of sells: 5
Shares outstanding: 14,952,868

Security key

02008G201

Report period

Q4 2025

Institutions

Top holders

ALUR full security history Ownership snapshot Full 13F holder table Newer quarter: Q1 2026 Previous quarter: Q3 2025 ALLURION TECHNOLOGIES, INC. SEC filings ALLURION TECHNOLOGIES, INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 02008G201

Newer quarter: Q1 2026 Previous quarter: Q3 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025

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

S. Omar Ishrak

Comparable rows

2/15

Latest evidence

30 Sep 2025

13F 13D/G 3/4/5 Lead comparable stake: 18% 13 rows are not safely comparable across share classes. 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%.

2 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 2

RTW INVESTMENTS, LP 18%

Leavitt Equity Partners III, L.P. 7.8%

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 13F 13D/G	18% Reported 13D/G · 20 Feb 2025	$5,212,336 2,542,603 shares	—	30 Sep 2025
Leavitt Equity Partners III, L.P.	13D/G 13D/G	7.8% Reported 13D/G · 01 Jul 2024	$198,988 462,762 shares	$0	01 Jul 2024
Krishna K. Gupta	3/4/5 Director, 10%+ Owner 3/4/5	— denominator unverified	$3,608,111 1,919,208 shares	—	23 Oct 2023
S. Omar Ishrak	3/4/5 Director 3/4/5	— denominator unverified	$6,218,939 3,307,946 shares	—	23 Oct 2023
Ram Chuttani	3/4/5 Chief Medical Officer 3/4/5	— mixed-class rows	$3,126,244 1,866,978 shares mixed-class rows	—	02 May 2024
Keith B. Johns II	3/4/5 Director 3/4/5	— denominator unverified	$1,092,388 326,086 shares	—	08 Nov 2024

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 Q4 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

6,650,537

Rows available

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 Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders

Q4 2025 holders

Holder diff

Investor	Q3 2025 Shares	Q4 2025 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend