SCHEDULE 13D/A Filed 2026-07-23 Event 2026-07-21 SEC 0001493215-26-000135 →

RTW INVESTMENTS, LP → ALLURION TECHNOLOGIES, INC. ALURD

Stake: — Shares: 67,441 Class: Common Stock, par value $0.0001 per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

12 transactions

4 buys · 2 sales · 2 awards/exercises

Issuer Cluster

7 13D/G filings on this issuer

6 other filings besides this one

Filer Track Record

18 filings by this filer

17 other filings in the data moat

Short Interest · settle 2026-06-30

DTC 1.00

4,699 shares short · -92.4% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2025-12-04	Davin Michael R	director	Sale	1,606	$1.58	$3K
2025-12-03	Davin Michael R	director	Sale	1,606	$1.48	$2K
2025-11-26	Davin Michael R	director	Gift	2,608	—	—
2025-11-12	RTW INVESTMENTS, LP	director, 10%+ owner	Award	991,544	$1.67	$1.66M
2025-11-12	RTW INVESTMENTS, LP	director, 10%+ owner	Award	767,848	$1.67	$1.28M
2025-11-12	RTW INVESTMENTS, LP	director, 10%+ owner	Award	96,896	$1.67	$162K
2025-11-05	RTW INVESTMENTS, LP	director, 10%+ owner	C	822,722	$3.35	$2.76M
2025-11-05	RTW INVESTMENTS, LP	director, 10%+ owner	C	631,954	$3.35	$2.12M
2025-11-05	RTW INVESTMENTS, LP	director, 10%+ owner	C	37,863	$3.35	$127K
2025-11-05	RTW INVESTMENTS, LP	director, 10%+ owner	Award	—	$3.35	—
2025-11-05	RTW INVESTMENTS, LP	director, 10%+ owner	C	—	$3.35	—
2025-10-03	Davin Michael R	director	Gift	604	—	—

Other 13D/G Filings on ALLURION TECHNOLOGIES, INC.

Filed	Form	Filer	Stake	Shares
2025-11-07	SCHEDULE	RTW INVESTMENTS, LP	43.60%	4,035,142	view →
2025-02-24	SCHEDULE	RTW INVESTMENTS, LP	17.60%	1,050,053	view →
2025-01-29	SCHEDULE	RTW INVESTMENTS, LP	21.90%	1,050,053	view →
2025-01-16	SCHEDULE	RTW INVESTMENTS, LP	29.60%	1,050,060	view →
2025-01-10	SCHEDULE	RTW INVESTMENTS, LP	9.99%	277,797	view →
2024-07-02	SC	RTW INVESTMENTS, LP	—	—	view →

Other Filings by RTW INVESTMENTS, LP

Filed	Form	Issuer	Stake	Shares
2025-11-07	SCHEDULE	ALLURION TECHNOLOGIES, INC. ALURW	43.60%	4,035,142	view →
2025-02-24	SCHEDULE	ALLURION TECHNOLOGIES, INC. ALURW	17.60%	1,050,053	view →
2025-01-29	SCHEDULE	ALLURION TECHNOLOGIES, INC. ALURW	21.90%	1,050,053	view →
2025-01-16	SCHEDULE	ALLURION TECHNOLOGIES, INC. ALURW	29.60%	1,050,060	view →
2025-01-10	SCHEDULE	ALLURION TECHNOLOGIES, INC. ALURW	9.99%	277,797	view →
2024-07-02	SC	ALLURION TECHNOLOGIES, INC. ALURW	—	—	view →
2023-12-12	SC	DermTech, Inc.	—	—	view →
2023-04-05	SC	Renovacor, Inc.	—	—	view →
2023-04-05	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2022-10-11	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2022-09-21	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2021-08-31	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2021-03-29	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2021-01-19	SC	DermTech, Inc.	—	—	view →
2021-01-08	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →
2020-03-09	SC	DermTech, Inc.	—	—	view →
2019-04-18	SC	ROCKET PHARMACEUTICALS, INC. RCKTW	—	—	view →

Want this depth on every filing the moment it hits SEC EDGAR?

Full feed access · API · daily intelligence brief · custom alerts. From $49/mo.

See pricing →