Allurion Technologies-28ALURWPreferred / convertible

13F holders, Q1 2026 (March 31)
3holders −26
1new positions
27sold out
$0.02avg. 13F price*

At the end of Q1 2026, 3 institutions reported holding Allurion Technologies-28 (ALURW) in their 13F filings, down 26 from Q4 2025. 1 opened new positions and 27 sold out. The largest holders were Longfellow Investment Management Co. LLC ($2), Harbour Investments, Inc. ($0) and Investors Research Corp ($0).

Company
Allurion Technologies-28
CUSIP
02008G110
Latest filing quarter
Q2 2026

History

Number of 13F holders

01020304050 Q1 2024: 46Q1 2024Q2 2024: 46Q2 2024Q3 2024: 45Q3 2024Q4 2024: 39Q4 2024Q1 2025: 34Q1 2025Q2 2025: 39Q2 2025Q3 2025: 35Q3 2025Q4 2025: 29Q4 2025Q1 2026: 3Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions1$0
Exits27$156K

All 13F filers, Q4 2025 → Q1 2026: 6 shares bought and 5,494,871 shares sold, net −5,494,865 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 3 holders

Longfellow Investment Management Co. LLC — No change 77 $2
Harbour Investments, Inc. — New 6 $0
Investors Research Corp — No change 6 $0

"% of holder's portfolio" is ALURW's weight in each manager's 13F, not the share of Allurion Technologies-28 the manager owns.