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RIA / WealthRegistered adviserasset managerSEC registeredRAUM 10b 100b

ARIN RISK ADVISORS LLC

CRD 151491

CONSHOHOCKEN, PA

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:d5a8b601-3250-061b-e75f-ed9d5e609ffc

Data as of Mar 31, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 2:08 AM UTC and rebuilt at most every 15 minutes.

Relationships: 13
Dated events: 6
On other graphs: 0
Observed: Nov 15, 2011 to Mar 31, 2026
34 observations

Across DFX

This entity has not been resolved onto another DFX graph by a shared identifier. A name match elsewhere would be a candidate, never an identity, and none is recorded.

Facts

fact = as filed or announced; derived = computed by DFX; estimate = a band, never a point

Firm class: asset managerderivedprivate_client_share=0.0 fund_share=1.0 institutional_share=0.0 related_bd=false related_bank=false bd_reps=0.0
Regulatory AUM: $10BItem 5.F on the latest filing (2026-03-31); as reported, and an affiliate's assets may be counted again on its own filing
Discretionary RAUM: $10B
Private client RAUM: $12.2MderivedItem 5.D individuals plus high net worth individuals
Private client share: 0%derivedprivate client RAUM over total RAUM
Advisors on IAPD: 4
RAUM per advisor: $2.5Bderivedthe firm's RAUM over its IAPD headcount: a firm average, never a person's book
Employees: 11
Advisory employees: 5
Offices: 0Schedule D 1.F, beyond the principal office
Accounts: 21
High net worth clients: 5
Private funds: 1Schedule D 7.B(1)
SEC number: 801-70598
CRD: 151491
Filings on the tape: 34
First filed: Nov 15, 2011
Latest filed: Mar 31, 2026
Organised: Limited Liability Company, DE
Website: arinllc.com

Advisors on IAPD

current investment adviser representatives on the IAPD individual feed, longest tenure first

Advisor	Designations	Branch	Years here	In industry	Prior firms	Dual registered
JOSEPH JOHN DESIPIO	Certified Financial Planner\|Chartered Financial Consultant\|Chartered Financial Analyst	SAN FRANCISCO, CA \| CONSHOHOCKEN, PA	16	40	1	no
LAWRENCE HOWARD LEMPERT	n/a	CONSHOHOCKEN, PA	14	22	1	no
RYAN MICHAEL BAILEY	n/a	CONSHOHOCKEN, PA	13	21	1	no
Benjamin Alfred Singer	n/a	RANCHO SANTA FE, CA \| CONSHOHOCKEN, PA	0	11	n/a	no

Private funds

Schedule D 7.B(1); gross asset value as reported, never fund size; reporting ends 2024-12-31

Fund	Type	Reported GAV	As of	Owners	First reported	Status	Form D file
VEGAEX, LP	Hedge Fund	$2.6M	Oct 3, 2024	7	Mar 12, 2013	reported	n/a
CAERUS VOLATILITY ARBITRAGE FUND, LP	Hedge Fund	$0	Nov 16, 2015	0	Mar 12, 2013	dropped	n/a

Owners and control persons

Schedule A and B as filed; ownership codes are the form's bands (NA under 5%, A 5 to 10%, B 10 to 25%, C 25 to 50%, D 50 to 75%, E over 75%); people are listed as filed and never merged by name

Owner	Title	Ownership code	Control person	Acquired	First seen	Last seen
ARIN HOLDINGS LLC	Member	E	yes	04/2010	Mar 28, 2012	Oct 3, 2024
DESIPIO, JOSEPH, JOHN	MANAGING MEMBER	C	yes	04/2010	Nov 15, 2011	Oct 3, 2024
DESIPIO, JOSEPH, JOHN	Manager	Na	yes	08/2009	Nov 15, 2011	Oct 3, 2024
LEMPERT, LAWRENCE, HOWARD	MANAGING MEMBER	C	yes	01/2012	Nov 15, 2011	Oct 3, 2024
LEMPERT, LAWRENCE, HOWARD	CHIEF COMPLIANCE OFFICER	Na	yes	10/2011	Nov 15, 2011	Oct 3, 2024

Regulatory AUM by fiscal year

annual amendments (and the roster's annual snapshot) as filed; where a year was amended twice the later filing draws the line

Fiscal year	Filed	RAUM	Discretionary	Employees	Advisory staff	Offices	Private funds	Fund GAV
2025	Mar 31, 2026	$10B	$10B	11	5	0	1	n/a
2024	Apr 17, 2025	$5.0B	$5.0B	10	4	0	1	n/a
2023	Mar 29, 2024	$988M	$988M	5	4	0	1	$2.6M
2022	Mar 31, 2023	$345M	$345M	6	5	0	1	$2.6M
2021	Mar 25, 2022	$287M	$287M	6	5	0	1	$2.7M
2020	Mar 30, 2021	$215M	$215M	6	5	0	1	$1.0M
2019	Mar 31, 2020	$485M	$485M	6	5	0	1	$1.0M
2018	Apr 1, 2019	$126M	$126M	6	5	1	1	$1.0M
2017	Mar 30, 2018	$82.2M	$82.2M	4	4	1	1	$2.7M
2016	Mar 29, 2017	$23.7M	$23.7M	6	4	n/a	1	$2.2M
2015	Mar 30, 2016	$18.0M	$18.0M	6	3	n/a	1	$1.3M
2014	Mar 16, 2015	$25.6M	$25.6M	6	3	n/a	2	$1.3M
2013	Jan 23, 2014	$3.1B	$3.1B	9	4	n/a	2	$950,000
2012	Mar 12, 2013	$292M	$292M	6	3	n/a	2	$0
2011	Mar 28, 2012	$202M	$202M	n/a	n/a	n/a	n/a	n/a

Advisor flows

derived: registrations beginning and ending at this CRD on IAPD, bulk corporate re-registrations excluded; the rate is departures over IAPD headcount

Joined, 12m	Left, 12m	Net, 12m	Departure rate, 12m	Joined, 90d	Left, 90d	Left, no destination yet	Joined, 36m	Left, 36m
0	0	0	0.0%	0	0	0	0	0

Growth

derived from consecutive annual filings; RAUM as reported

Latest fiscal year	RAUM	A year earlier	1y change	Three years earlier	3y CAGR	Employees	A year earlier	Offices	A year earlier
2025	$10B	$5.0B	104.8%	$345M	209.0%	11	10	0	0

Relationships

Registered with (6)

← Benjamin Alfred SingerAdvisorregistration: current employment
Sep 22, 2025 to presentfactForm ADV
← RYAN MICHAEL BAILEYAdvisorregistration: current employment
Jan 29, 2013 to presentfactForm ADV
← LAWRENCE HOWARD LEMPERTAdvisorregistration: current employment
Aug 17, 2012 to presentfactForm ADV
← JOSEPH JOHN DESIPIOAdvisorregistration: current employment
Feb 9, 2010 to presentfactForm ADV
← Jeffrey CholishAdvisorregistration: previous registration
Nov 6, 2020 to Dec 21, 2022factForm ADV
← GERALD RAUL SNYDERAdvisorregistration: previous registration
Feb 2, 2010 to Oct 21, 2011factForm ADV

Advises (2)

→ VEGAEX, LPPrivate fundHedge Fund, IA
Mar 12, 2013 to presentfactForm ADV
→ CAERUS VOLATILITY ARBITRAGE FUND, LPPrivate fundHedge Fund, IA, no longer reported
Mar 12, 2013 to Nov 16, 2015factForm ADV

Controls (3)

← DESIPIO, JOSEPH, JOHNOwnerMANAGING MEMBER, ownership code C, individual
Nov 15, 2011 to Oct 3, 2024factForm ADV
← LEMPERT, LAWRENCE, HOWARDOwnerMANAGING MEMBER, ownership code C, individual
Nov 15, 2011 to Oct 3, 2024factForm ADV
← ARIN HOLDINGS LLCOwnerMEMBER, ownership code E, domestic entity
Mar 28, 2012 to Oct 3, 2024factForm ADV

Dated events

Occurred
Mar 31, 2026
Regulatory AUM changed
Arin Risk Advisors Llc reported RAUM $10.2B, up 105% from $5.0B (2025-09-05 to 2026-03-31)
Form ADVobserved 4 days ago
$5.2B
Occurred
Apr 17, 2025
Regulatory AUM changed
Arin Risk Advisors Llc reported RAUM $5.0B, up 404% from $987.8M (2024-10-03 to 2025-04-17)
Form ADVobserved 4 days ago
$4.0B
Occurred
Mar 29, 2024
Regulatory AUM changed
Arin Risk Advisors Llc reported RAUM $987.8M, up 186% from $345.3M (2023-03-31 to 2024-03-29)
Form ADVobserved 4 days ago
$642M
Occurred
Dec 21, 2022
Advisor departed, no destination yet
Jeffrey Cholish no longer registered at Arin Risk Advisors Llc; no later IA registration on IAPD
Form ADVobserved 4 days ago
Occurred
Mar 30, 2021
Regulatory AUM changed
Arin Risk Advisors Llc reported RAUM $215.0M, down 56% from $485.0M (2020-06-24 to 2021-03-30)
Form ADVobserved 4 days ago
$-270M
Occurred
Mar 31, 2020
Regulatory AUM changed
Arin Risk Advisors Llc reported RAUM $485.0M, up 285% from $126.0M (2019-04-01 to 2020-03-31)
Form ADVobserved 4 days ago
$359M

Provenance

Graph: RIA / Wealth Management
Canonical id: dfx:ria:d5a8b601-3250-061b-e75f-ed9d5e609ffc
First observed: Nov 15, 2011
Last observed: Mar 31, 2026 5 months ago
Source families: Federal regulator filings
3 registered feeds stand behind this record; each fact above carries its own dates and, where the publisher serves one, its document.
Resolution: Identity across graphs by shared identifier (CRD, CIK, EIN, ADV fund id, individual CRD) or citation; a name match is shown as a candidate and never merged.

ARIN RISK ADVISORS LLC

CRD 151491

CONSHOHOCKEN, PA

This is the graph view. The full profile, with its team, deals and sources, is on RIA / Wealth Management.Open the full profile →

Search this name across graphsid dfx:ria:d5a8b601-3250-061b-e75f-ed9d5e609ffc

Data as of Mar 31, 2026 (this record's last observation) from federal regulator filings. Page built Sep 20, 2026, 2:08 AM UTC and rebuilt at most every 15 minutes.

Advisor

Designations

Branch

Years here

In industry

Prior firms

Dual registered

JOSEPH JOHN DESIPIO

Certified Financial Planner|Chartered Financial Consultant|Chartered Financial Analyst

SAN FRANCISCO, CA | CONSHOHOCKEN, PA

LAWRENCE HOWARD LEMPERT

n/a

CONSHOHOCKEN, PA

RYAN MICHAEL BAILEY

n/a

CONSHOHOCKEN, PA

Benjamin Alfred Singer

n/a

RANCHO SANTA FE, CA | CONSHOHOCKEN, PA

n/a

Fund

Type

Reported GAV

As of

Owners

First reported

Status

Form D file

VEGAEX, LP

Hedge Fund

$2.6M

Oct 3, 2024

Mar 12, 2013

reported

n/a

CAERUS VOLATILITY ARBITRAGE FUND, LP

Hedge Fund

Nov 16, 2015

Mar 12, 2013

dropped

n/a

Owner

Title

Ownership code

Control person

Acquired

First seen

Last seen

ARIN HOLDINGS LLC

Member

yes

04/2010

Mar 28, 2012

Oct 3, 2024

DESIPIO, JOSEPH, JOHN

MANAGING MEMBER

yes

04/2010

Nov 15, 2011

Oct 3, 2024

DESIPIO, JOSEPH, JOHN

Manager

yes

08/2009

Nov 15, 2011

Oct 3, 2024

LEMPERT, LAWRENCE, HOWARD

MANAGING MEMBER

yes

01/2012

Nov 15, 2011

Oct 3, 2024

LEMPERT, LAWRENCE, HOWARD

CHIEF COMPLIANCE OFFICER

yes

10/2011

Nov 15, 2011

Oct 3, 2024

Fiscal year

Filed

RAUM

Discretionary

Employees

Advisory staff

Offices

Private funds

Fund GAV

2025

Mar 31, 2026

$10B

n/a

2024

Apr 17, 2025

$5.0B

n/a

2023

Mar 29, 2024

$988M

$2.6M

2022

Mar 31, 2023

$345M

$2.6M

2021

Mar 25, 2022

$287M

$2.7M

2020

Mar 30, 2021

$215M

$1.0M

2019

Mar 31, 2020

$485M

$1.0M

2018

Apr 1, 2019

$126M

$1.0M

2017

Mar 30, 2018

$82.2M

$2.7M

2016

Mar 29, 2017

$23.7M

n/a

$2.2M

2015

Mar 30, 2016

$18.0M

n/a

$1.3M

2014

Mar 16, 2015

$25.6M

n/a

$1.3M

2013

Jan 23, 2014

$3.1B

n/a

$950,000

2012

Mar 12, 2013

$292M

n/a

2011

Mar 28, 2012

$202M

n/a

Joined, 12m

Left, 12m

Net, 12m

Departure rate, 12m

Joined, 90d

Left, 90d

Left, no destination yet

Joined, 36m

Left, 36m

0.0%

Latest fiscal year

RAUM

A year earlier

1y change

Three years earlier

3y CAGR

Employees

A year earlier

Offices

A year earlier

2025

$10B

$5.0B

104.8%

$345M

209.0%