How many institutions own ALUR stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own ALUR shares is 27, representing 70.48% of the company's common stock.

Who are the major shareholders selling Allurion Technologies Inc. stock?

UBS GROUP AG, in the last quarter, reduced its stake in ALUR by -5.89% restricting it's holding to 59.14 thousand shares of worth nearly $121.23K. BANK OF AMERICA CORP /DE/ also lessened -2.44% of the ALUR shares from its portfolio, reducing its holding to 40 shares of worth $82.00. LRI INVESTMENTS, LLC also shunned ALUR shares holding by -38.91% last quarter which brought its holding to 5 thousand shares worth $10.25K.

Investors who are buying ALUR stock?

As per its latest 13F filing, SBI SECURITIES CO., LTD. increased its stake in ALUR by 30% in the last quarter. The institutional holder raised its holding to 13 shares having worth more than $27.00. GEODE CAPITAL MANAGEMENT, LLC also added 0.21% more shares of ALUR to its portfolio, raising its holding to 39.6 thousand shares of worth $81.19K. VANGUARD GROUP INC also increased its ALUR shares holding by 13.81% which brought its holding to 56.18 thousand shares worth $115.17K.

ALUR's major insiders: who are they?

The insider with the most stakes in ALUR is Gaur Shantanu , Chief Executive Officer at the company. Additionally, ALUR stock is highly held by director Davin Michael R and N/A N/A among others.

Did an insider recently sell ALUR stock?

Company executives, directors, and other insiders own 8.45% percent of Allurion Technologies Inc.'s stock. Within the last six months, there have been 2 transaction(s) in which ALUR insiders have sold stock, totaling 3.21K shares. Insiders that have sold shares include DAVIN MICHAEL R.

Which insider recently purchased ALUR stock?

There have been 0 transaction(s) during the past 6-months in which Allurion Technologies Inc. insiders have bought stock, totalling 0 shares

How much of ALUR does insiders own?

Around 1.61K Allurion Technologies Inc. shares are held by insiders, which represents about 8.45% of ALUR stock.

Who is the insider with the largest stake?

ALUR Chief Executive Officer, Gaur Shantanu holds the largest portfolio of the company's shares. ALUR shares owned by Gaur total nearly 16 thousand.

Which institution holds the most shares in ALUR?

UBS GROUP AG is the largest institutional owner in ALUR which holds 59.14 thousand shares worth $121.23K or 0.08% of the total ALUR shares outstanding followed by HARBOUR INVESTMENTS, INC. with ownership of 2 shares representing 0% of the ALUR ownership. SBI SECURITIES CO., LTD. is the third largest stakeholder with 13 shares or 0% of the ownership worth more than $27.00.

Is Allurion Technologies Inc. stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the ALUR is concerned, it is a stock which is not optionable.

Is there a short position on ALUR's shares?

Number of ALUR shares short is 444.73K. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding ALUR shares are there?

As of today, 12.26M shares of ALUR are outstanding.

Is there many float in ALUR stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, ALUR has 4.53M shares in float.

ALUR short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for ALUR is 3.79.

Allurion Technologies (ALUR) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableNo

Short Percent Of Outstanding Shares3.63

Short Percent Of Float4.84

Shares Outstanding12.26M

Shares Float4.53M

Shares Short444.73K

Short Ratio3.79

4.84%

Short % of Float

3.63%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

8.45% Percentage of Shares held by All Insiders

70.48% Percentage of Shares held by All Institutions

76.99% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 70.48% of ALUR shares are held by financial institutions. UBS GROUP AG is the top corporate investor, holding 59.14K shares valued at $121.23K. A 0.08% stake in Allurion Technologies Inc. is owned by the company. HARBOUR INVESTMENTS, INC. owns 2 shares valued at $4.00, which translates its holding of 0% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Sep 30, 2025	UBS GROUP AG	0.08%	59.14K	121.23K	-3.7K	-5.89%
Sep 30, 2025	HARBOUR INVESTMENTS, INC.	0%	2	4	0	0
Sep 30, 2025	SBI SECURITIES CO., LTD.	0%	13	27	3	+30.00%
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0%	40	82	-1	-2.44%
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.05%	39.6K	81.19K	82	+0.21%
Sep 30, 2025	VANGUARD GROUP INC	0.08%	56.18K	115.17K	6.82K	+13.81%
Sep 30, 2025	STATE STREET CORP	0.02%	14.84K	30.41K	0	0
Sep 30, 2025	CENTERPOINT ADVISORS, LLC	0.01%	6.35K	13K	0	0
Sep 30, 2025	LIMESTONE INVESTMENT ADVISORS LP	0.02%	10.95K	296	10.95K	+100.00%
Sep 30, 2025	BLACKROCK, INC.	0.03%	18.86K	38.65K	0	0
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	790	1.71K	0	0
Sep 30, 2025	RTW INVESTMENTS, LP	3.48%	2.54M	5.21M	0	0
Sep 30, 2025	LRI INVESTMENTS, LLC	0.01%	5K	10.25K	-3.19K	-38.91%
Sep 30, 2025	XTX TOPCO LTD	0.02%	12.23K	25.06K	-6.44K	-34.52%
Sep 30, 2025	ALLWORTH FINANCIAL LP	0%	11	23	0	0
Sep 30, 2025	CITIGROUP INC	0%	0	-	-1.68K	-100.00%
Sep 30, 2025	GROUP ONE TRADING, L.P.	0%	199	408	0	0
Sep 30, 2025	SIGNATUREFD, LLC	0%	3	6	0	0
Sep 30, 2025	JPMORGAN CHASE & CO	0%	4	8	0	0
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0%	1.06K	2.17K	-1.2K	-53.23%
Sep 30, 2025	RAYMOND JAMES FINANCIAL INC	0%	0	-	-63	-100.00%
Sep 30, 2025	UNISPHERE ESTABLISHMENT	0.07%	49.7K	101.88K	0	0
Jun 30, 2025	SABBY MANAGEMENT, LLC	0%	0	-	-27.89K	-100.00%
Jun 30, 2025	PARALLEL ADVISORS, LLC	0%	0	-	-10	-100.00%
Jun 30, 2025	RTW INVESTMENTS, LP	6.89%	2.54M	6.18M	1.49M	+142.14%
Jun 30, 2025	UNISPHERE ESTABLISHMENT	0.13%	49.7K	120.76K	0	0
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	790	1.92K	0	0
Jun 30, 2025	MORGAN STANLEY	0%	0	-	-53	-100.00%
Jun 30, 2025	GROUP ONE TRADING, L.P.	0%	199	484	0	0
Jun 30, 2025	HARBOUR INVESTMENTS, INC.	0%	2	5	0	0
Jun 30, 2025		0%	10	24	8	+400.00%
Jun 30, 2025	VANGUARD GROUP INC	0.13%	49.37K	119.96K	0	0
Jun 30, 2025	RAYMOND JAMES FINANCIAL INC	0%	63	153	63	+100.00%
Jun 30, 2025	LRI INVESTMENTS, LLC	0.02%	8.19K	19.89K	8.19K	+100.00%
Jun 30, 2025	UBS GROUP AG	0.17%	62.84K	152.69K	-19.7K	-23.87%
Jun 30, 2025	FMR LLC	0%	0	-	-8	-100.00%
Jun 30, 2025	CENTERPOINT ADVISORS, LLC	0.02%	6.35K	15K	3.03K	+91.29%
Jun 30, 2025	XTX TOPCO LTD	0.05%	18.67K	45.37K	5.63K	+43.21%
Jun 30, 2025	BLACKROCK, INC.	0.05%	18.86K	45.82K	-1.57K	-7.68%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.11%	39.52K	96.04K	-1.37K	-3.36%
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0%	41	100	4	+10.81%
Jun 30, 2025	STATE STREET CORP	0.04%	14.84K	36.05K	14.84K	+100.00%
Jun 30, 2025	CITIGROUP INC	0%	1.68K	4.08K	1.68K	+100.00%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	2.26K	5.5K	5	+0.22%
Jun 30, 2025	ALLWORTH FINANCIAL LP	0%	11	27	0	0
Jun 30, 2025	SBI SECURITIES CO., LTD.	0%	10	24	8	+400.00%
Jun 30, 2025	JPMORGAN CHASE & CO	0%	4	10	-57	-93.44%
Jun 30, 2025	SIGNATUREFD, LLC	0%	3	7	0	0
Jun 30, 2025	HRT FINANCIAL LP	0%	0	-	-42.72K	-100.00%
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	0%	0	-	-495.79K	-100.00%
Mar 31, 2025	HRT FINANCIAL LP	0.89%	42.72K	137K	42.72K	+100.00%
Mar 31, 2025	SABBY MANAGEMENT, LLC	0.58%	27.89K	89.53K	27.89K	+100.00%
Mar 31, 2025	XTX TOPCO LTD	0.27%	13.04K	41.85K	13.04K	+100.00%
Mar 31, 2025	CENTERPOINT ADVISORS, LLC	0.07%	3.32K	11K	3.32K	+100.00%
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.05%	2.26K	7.25K	2.26K	+100.00%
Mar 31, 2025	JPMORGAN CHASE & CO	0%	0	-	-216	-100.00%
Mar 31, 2025	MORGAN STANLEY	0%	53	170	53	+100.00%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0%	0	-	-436	-100.00%
Mar 31, 2025	ALLWORTH FINANCIAL LP	0%	11	26	11	+100.00%
Mar 31, 2025		0%	2	6	-19	-90.48%
Mar 31, 2025	NORTHERN TRUST CORP	0%	0	-	-76.47K	-100.00%
Mar 31, 2025	STATE STREET CORP	0%	0	-	-120.51K	-100.00%
Mar 31, 2025	FMR LLC	0%	0	-	-269	-100.00%
Mar 31, 2025	HARBOUR INVESTMENTS, INC.	0%	0	-	-56	-100.00%
Mar 31, 2025	BANK OF MONTREAL /CAN/	0%	0	-	-32K	-100.00%
Mar 31, 2025	GROUP ONE TRADING, L.P.	0%	0	-	-4.98K	-100.00%
Mar 31, 2025	YALE UNIVERSITY	0%	0	-	-12.25K	-100.00%
Mar 31, 2025	ROYAL BANK OF CANADA	0%	0	-	-4.45K	-100.00%
Mar 31, 2025	JANE STREET GROUP, LLC	0%	0	-	-226.11K	-100.00%
Mar 31, 2025	ARMISTICE CAPITAL, LLC	0%	0	-	-7.53M	-100.00%
Mar 31, 2025	UBS GROUP AG	0%	0	-	-116.55K	-100.00%
Mar 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	0	-	-100	-100.00%
Mar 31, 2025	PARALLEL ADVISORS, LLC	0%	0	-	-251	-100.00%
Mar 31, 2025	CAAS CAPITAL MANAGEMENT LP	0.23%	10.95K	318	10.95K	+100.00%
Mar 31, 2025	VANGUARD GROUP INC	0%	0	-	-1.2M	-100.00%
Mar 31, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0%	0	-	-75K	-100.00%
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-33.4K	-100.00%
Mar 31, 2025	BLACKROCK, INC.	0%	0	-	-511.6K	-100.00%
Mar 31, 2025	SIGNATUREFD, LLC	0%	0	-	-83	-100.00%
Mar 31, 2025	SIMPLEX TRADING, LLC	0%	0	-	-19.48K	-100.00%
Mar 31, 2025	RTW INVESTMENTS, LP	0%	0	-	-2.95M	-100.00%
Mar 31, 2025	COLONY GROUP, LLC	0%	0	-	-35.05K	-100.00%
Mar 31, 2025	UNISPHERE ESTABLISHMENT	0%	0	-	-1.24M	-100.00%
Dec 31, 2024	SIMPLEX TRADING, LLC	0.03%	19.48K	8K	19.48K	+100.00%
Dec 31, 2024	BANK OF MONTREAL /CAN/	0.06%	32K	13.76K	32K	+100.00%
Dec 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.06%	33.4K	14.36K	-36.9K	-52.49%
Dec 31, 2024	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.13%	75K	32.25K	0	0
Dec 31, 2024	NORTHERN TRUST CORP	0.14%	76.47K	32.88K	0	0
Dec 31, 2024	PARALLEL ADVISORS, LLC	0%	251	108	0	0
Dec 31, 2024	FMR LLC	0%	269	116	-3.66K	-93.15%
Dec 31, 2024	BANK OF AMERICA CORP /DE/	0%	436	187	-1	-0.23%
Dec 31, 2024	ROYAL BANK OF CANADA	0.01%	4.45K	2K	3	+0.07%
Dec 31, 2024	YALE UNIVERSITY	0.02%	12.25K	5.27K	0	0
Dec 31, 2024	UBS GROUP AG	0.21%	116.55K	50.12K	113.1K	+3,276.42%
Dec 31, 2024	JANE STREET GROUP, LLC	0.4%	226.11K	97.23K	226.11K	+100.00%
Dec 31, 2024	UNISPHERE ESTABLISHMENT	0.08%	1.24M	534.2K	0	0
Dec 31, 2024	ACCREDITED INVESTORS INC.	0%	0	-	-20.13K	-100.00%
Dec 31, 2024	GOLDMAN SACHS GROUP INC	0%	0	-	-20.67K	-100.00%
Dec 31, 2024	FISHER ASSET MANAGEMENT, LLC	0%	0	-	-34.24K	-100.00%
Dec 31, 2024	HARBOUR INVESTMENTS, INC.	0%	56	24	0	0
Dec 31, 2024	SIGNATUREFD, LLC	0%	83	36	0	0
Dec 31, 2024	JPMORGAN CHASE & CO	0%	216	93	-5	-2.26%
Dec 31, 2024	ARMISTICE CAPITAL, LLC	0.47%	7.53M	3.24M	-278.6K	-3.57%
Dec 31, 2024	ALLWORTH FINANCIAL LP	0%	0	-	-284	-100.00%
Dec 31, 2024	VANGUARD GROUP INC	2.14%	1.2M	516.31K	0	0
Dec 31, 2024	RTW INVESTMENTS, LP	0.18%	2.95M	1.27M	-750K	-20.28%
Dec 31, 2024	FORTRESS INVESTMENT GROUP LLC	0%	0	-	-1.26M	-100.00%
Dec 31, 2024	MORGAN STANLEY	0%	0	-	-500	-100.00%
Dec 31, 2024	ADVISOR GROUP HOLDINGS, INC.	0%	100	43	0	0
Dec 31, 2024	GROUP ONE TRADING, L.P.	0.01%	4.98K	2.14K	0	0
Dec 31, 2024	COLONY GROUP, LLC	0.06%	35.05K	15.07K	35.05K	+100.00%
Dec 31, 2024	STATE STREET CORP	0.21%	120.51K	51.82K	0	0
Dec 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	0.88%	495.79K	213.24K	-20.54K	-3.98%
Dec 31, 2024	BLACKROCK, INC.	0.03%	511.6K	219.99K	11.71K	+2.34%

Insiders

Among the ALUR insiders holding of 8.45% of the stake in company, GAUR SHANTANU, Chief Executive Officer, holds the largest shares of 16K. DAVIN MICHAEL R, director, is the second largest ALUR insider with ownership of 0 shares. , , stands third with possession of - shares of that stake.

Insiders	Designation	Shares Held
GAUR SHANTANU	Chief Executive Officer	16K
DAVIN MICHAEL R	director	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Dec 04, 2025	DAVIN MICHAEL R	SALE	1.58	1.61K	2.54K	0
Dec 03, 2025	DAVIN MICHAEL R	SALE	1.48	1.61K	2.38K	1.61K
May 19, 2025	GAUR SHANTANU	PURCHASE	3.06	8K	24.48K	16K
Mar 28, 2025	GAUR SHANTANU	PURCHASE	3.35	8K	26.8K	8K

Insider Transaction Summary (6 Months)

SHARESTRANS

PURCHASE00

SALES3.21K2

NET SHARES-3.21K2

SHARES HELD1.61K2

% NET SHARES-300%0%

ALUR Stock Ownership Breakdown