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Allurion Technologies, Inc.

ALUR
Exchange
OTC
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001964979

No open-market purchases or sales by Allurion Technologies, Inc. insiders were filed in the last 90 days; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Other share classesALURW

13F holders, Q3 2025

Institutional positions in Allurion Technologies, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
20
−1 vs. Q2 2025
Shares held
2.82M
+1.57K (+0.1%) vs. Q2 2025
Total value
$5.75M
−$1.09M (−15.9%) vs. Q2 2025
New holders
1
3 more added
Sold out
2
5 more reduced

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ALUR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 20 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 23 institutionsQ4 2023: 26 institutionsQ1 2024: 28 institutionsQ2 2024: 33 institutionsQ3 2024: 28 institutionsQ4 2024: 25 institutionsQ1 2025: 24 institutionsQ2 2025: 21 institutionsQ3 2025: 20 institutionsQ4 2025: 27 institutionsQ1 2026: 1 institutionQ2 2026: 0 institutions
Value heldQ3 2025: $5.75M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $26.8MQ4 2023: $28.4MQ1 2024: $13.3MQ2 2024: $10.3MQ3 2024: $10.2MQ4 2024: $6.30MQ1 2025: $4.44MQ2 2025: $6.84MQ3 2025: $5.75MQ4 2025: $8.20MQ1 2026: $1Q2 2026: $0
Institutions holding ALUR and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20261$1
Q4 202527$8.20M
Q3 202520$5.75M
Q2 202521$6.84M
Q1 202524$4.44M
Q4 202425$6.30M
Q3 202428$10.2M
Q2 202433$10.3M
Q1 202428$13.3M
Q4 202326$28.4M
Q3 202323$26.8M
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Allurion Technologies, Inc.; share changes are against Q2 2025.

Institutions holding ALUR in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
RTW Investments, LP2,542,603$5.21M0.06%00.0%Unchanged
UBS Group AG59,136$121.2K0.00%−3,701−5.9%Reduced
Vanguard Group Inc56,182$115.2K0.00%+6,816+13.8%Added
Unisphere Establishment49,695$101.9K0.00%00.0%Unchanged
Geode Capital Management, LLC39,602$81.2K0.00%+82+0.2%Added
BlackRock, Inc.18,855$38.7K0.00%00.0%Unchanged
State Street Corp14,835$30.4K0.00%00.0%Unchanged
XTX Topco Ltd12,226$25.1K0.00%−6,444−34.5%Reduced
Centerpoint Advisors, LLC6,347$13.0K0.00%00.0%Unchanged
LRI Investments, LLC5,000$10.3K0.00%−3,185−38.9%Reduced
Tower Research Capital LLC (TRC)1,058$2.17K0.00%−1,204−53.2%Reduced
Advisor Group Holdings, Inc.790$1.71K0.00%00.0%Unchanged
Group One Trading, L.P.199$4080.00%00.0%Unchanged
Limestone Investment Advisors LP10,950$2960.00%+10,950New
Bank of America Corp40$820.00%−1−2.4%Reduced
SBI Securities Co., Ltd.13$270.00%+3+30.0%Added
Allworth Financial LP11$230.00%00.0%Unchanged
JPMorgan Chase & Co4$80.00%00.0%Unchanged
Signaturefd, LLC3$60.00%00.0%Unchanged
Harbour Investments, Inc.2$40.00%00.0%Unchanged
Citigroup Inc0$00.00%−1,679−100.0%Sold out
Raymond James Financial Inc0$00.00%−63−100.0%Sold out