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Private equityFirmhybrid manager · probablelower middle market

Stone Ridge Asset Management LLC

Private Equity

New York, NY

Stone Ridge Asset Management is a leading alternative asset manager specializing in data-driven investment strategies uncorrelated to traditional markets—like Reinsurance, Lending, Single-Family Rentals, Energy, and more.

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Search this name across graphsid dfx:pe:9548b443-7a32-494b-9dfe-fa788214f5d5

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 19, 2026, 10:42 AM UTC and rebuilt at most every 15 minutes.

Relationships: 24
Dated events: 20
On other graphs: 3
Observed: Sep 13, 2026 to Sep 17, 2026
30 observations

Across DFX

same identity by shared identifier, citation, or a bridge measured by hand

Independent Sponsorsidentity

Stone Ridge Asset Management LLC

Capital provider to sponsors · shared crd

RIA / Wealth Managementidentity

STONE RIDGE ASSET MANAGEMENT LLC

Registered adviser · shared crd

Private Creditidentity

STONE RIDGE ASSET MANAGEMENT LLC

Private credit manager · shared crd

Facts

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

Funds: 7
PE funds: 7
Vintages: 2017 to 2023
PE GAV, 2024 filing: $280Mgross asset value on Form ADV; never dry powder
Regulatory AUM: $25B
Investments: 0
Active investments: 0
Size band: LOWER MIDDLE MARKETderivedproxy: $0.28bn Private Equity Fund GAV on the Form ADV filed 2024-06-28
Latest ADV filing: Jun 28, 2024
Employees (ADV): 132
Website: stoneridgeam.com

Funds

Fund	Vintage	Lifecycle	ADV type	Form D sold	GAV
Longtail Feeder Fund II LP	2023	Early deployment	Private Equity Fund	n/a	$24.9M
Drug Royalties Solutions Offshore Fund LLC	2020	Wound down	Private Equity Fund	n/a	$0
Drug Royalties Solutions Fund LLC	2020	Wound down	Private Equity Fund	n/a	$18.1M
Longtail Fund I LP	2020	Mature	Private Equity Fund	n/a	$61.4M
Drug Royalties Fund II LLC	2017	Mature	Private Equity Fund	n/a	$156M
Drug Royalties Cayman Fund II LP	2017	Mature	Private Equity Fund	n/a	$8.6M
Drug Royalties Offshore Fund II LLC	2017	Mature	Private Equity Fund	n/a	$28.5M

Relationships

Employs (12)

→ Tomer SeifanPersonHead Of Structured Investments And Chief Financial Officer
Jan 1, 2018 to presentfactForm ADV, The subject's own site
→ Yan ZhaoPersonHead of Investment Committee & President of Stone Ridge Holdings Group
factThe subject's own site
→ Ross L StevensPersonManager Of General Partner
Dec 1, 2017 to presentfactForm ADV, The subject's own site
→ Tejas ShahPersonInvestment Committee & CEO of NYDIG
factThe subject's own site
→ Paul Eric GermainPersonHead Of Alternative Lending And Chief Operations Officer
Mar 1, 2018 to May 12, 2020inferenceForm ADV, The subject's own site
→ Jim RothwellPersonHead of Legal
factThe subject's own site
→ Mike SapnarPersonHead of Insurance Solutions & CEO of Longtail Re
factThe subject's own site
→ James Thomas RothwellPersonChief Administrative Officer And Head Of Legal
Oct 1, 2015 to presentfactForm ADV
→ Lauren Decker MaciocePersonGeneral Counsel / Chief Compliance Officer
Feb 1, 2016 to presentfactForm ADV
→ Samuel Lawrence DonatPersonChief Operations Officer
Mar 1, 2020 to Aug 2, 2021inferenceForm ADV
→ Patrick KellyPersonChief Operating Officer
Sep 1, 2012 to Mar 7, 2018inferenceForm ADV
→ Jane Elizabeth KorachPersonGeneral Counsel/Chief Compliance Officer
Sep 1, 2012 to Mar 18, 2016inferenceForm ADV

Manages (7)

→ Longtail Feeder Fund II LPFundPrivate Equity Fund
Mar 31, 2023 to presentfactForm ADV
→ Drug Royalties Offshore Fund II LLCFundPrivate Equity Fund
Dec 14, 2017 to presentfactForm ADV
→ Longtail Fund I LPFundPrivate Equity Fund
Mar 30, 2020 to presentfactForm ADV
→ Drug Royalties Solutions Fund LLCFundPrivate Equity Fund
Mar 30, 2020 to presentfactForm ADV
→ Drug Royalties Solutions Offshore Fund LLCFundPrivate Equity Fund
Mar 30, 2020 to presentfactForm ADV
→ Drug Royalties Fund II LLCFundPrivate Equity Fund
Dec 14, 2017 to presentfactForm ADV
→ Drug Royalties Cayman Fund II LPFundPrivate Equity Fund
Dec 14, 2017 to presentfactForm ADV

Owns (1)

← Stone Ridge Holdings Group LLCFirmOwner
Sep 1, 2012 to presentfactForm ADV

Dated events

10 bookkeeping events (roster, classification and holdings changes) folded below

Occurred
Aug 2, 2021
Person left
Samuel Lawrence Donat (Chief Operations Officer) no longer on Schedule A of Stone Ridge Asset Management LLC
Form ADVobserved 5 days ago
Occurred
Jan 1, 2021
Person joined
Paul Eric Germain joined Schedule A of Stone Ridge Asset Management LLC as President
Form ADVobserved 5 days ago
Occurred
May 12, 2020
Person left
Paul Eric Germain (Head Of Alternative Lending And Chief Operations Officer) no longer on Schedule A of Stone Ridge Asset Management LLC
Form ADVobserved 5 days ago
Occurred
Mar 1, 2020
Person joined
Samuel Lawrence Donat joined Schedule A of Stone Ridge Asset Management LLC as Chief Operations Officer
Form ADVobserved 5 days ago
Occurred
Mar 7, 2018
Person left
Patrick Kelly (Chief Operating Officer) no longer on Schedule A of Stone Ridge Asset Management LLC
Form ADVobserved 5 days ago
Occurred
Jan 1, 2018
Person joined
Tomer Seifan joined Schedule A of Stone Ridge Asset Management LLC as Head Of Structured Investments And Chief Financial Officer
Form ADVobserved 5 days ago
Occurred
Mar 18, 2016
Person left
Jane Elizabeth Korach (General Counsel/Chief Compliance Officer) no longer on Schedule A of Stone Ridge Asset Management LLC
Form ADVobserved 5 days ago
Occurred
Feb 1, 2016
Person joined
Lauren Decker Macioce joined Schedule A of Stone Ridge Asset Management LLC as General Counsel / Chief Compliance Officer
Form ADVobserved 5 days ago
Occurred
Oct 1, 2015
Person joined
James Thomas Rothwell joined Schedule A of Stone Ridge Asset Management LLC as Head Of Legal
Form ADVobserved 5 days ago
Occurred
Oct 2, 2012
Adviser first adv filing
Stone Ridge Asset Management LLC first filed Form ADV in the extract (IA)
Form ADVobserved 5 days ago

Show 10 bookkeeping events

Occurred
Aug 24, 2026
Stone Ridge Asset Management LLC: Private Equity Funds on Form ADV 5 (2024 extract) -> 6 (roster 2026-09-01)
Occurred
Mar 31, 2023
Longtail Feeder Fund II LP first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $21,294,456
Occurred
Mar 30, 2021
Fund 805-3905527115 no longer reported on Form ADV by Stone Ridge Asset Management LLC
Occurred
Mar 30, 2021
Fund 805-6174539700 no longer reported on Form ADV by Stone Ridge Asset Management LLC
Occurred
Mar 30, 2020
Drug Royalties Solutions Offshore Fund LLC first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund)
Occurred
Mar 30, 2020
Drug Royalties Solutions Fund LLC first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $18,075,000
Occurred
Mar 30, 2020
Longtail Fund I LP first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $33,795,000
Occurred
Dec 14, 2017
Drug Royalties Fund II LLC first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $114,315,000
Occurred
Dec 14, 2017
Drug Royalties Cayman Fund II LP first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $6,080,000
Occurred
Dec 14, 2017
Drug Royalties Offshore Fund II LLC first reported on Form ADV by Stone Ridge Asset Management LLC (Private Equity Fund), GAV $22,450,000

Who to call

the organisation, the role and the published line, with the filing or website that published it; revealed to signed-in accounts

The firm's published line

Revealable: 1 business phone (Form ADV), 1 office address (Form ADV), 1 website (Form ADV) · as of 2026-09-13

Also named here, with no published line of their own (reach them through the firm): Tomer Seifan (Head Of Structured Investments And Chief Financial Officer), Yan Zhao (Head of Investment Committee & President of Stone Ridge Holdings Group), Ross L Stevens (Manager Of General Partner), Tejas Shah (Investment Committee & CEO of NYDIG), Paul Eric Germain (President), Jim Rothwell (Head of Legal), Mike Sapnar (Head of Insurance Solutions & CEO of Longtail Re), James Thomas Rothwell (Chief Administrative Officer And Head Of Legal), Lauren Decker Macioce (General Counsel / Chief Compliance Officer).

Who to call is the organisation, the person's role and the line they published themselves: a business phone, office address, website or profile link from Form ADV, Form 13F or their own website, with that source named on every value. The counts above are what a reveal returns; a personal email is rarely published, so most reveals are the firm's line. Never data bought from a provider, never anything personal. Reveals by plan

Provenance

Graph: Private Equity
Canonical id: dfx:pe:9548b443-7a32-494b-9dfe-fa788214f5d5
First observed: Sep 13, 2026
Last observed: Sep 17, 2026 44 h ago
Source families: Federal regulator filings, Firm and issuer disclosures
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.

Stone Ridge Asset Management LLC

Private Equity

New York, NY

This is the graph view. The full profile, with its team, deals and sources, is on Private Equity.Open the full profile →

Search this name across graphsid dfx:pe:9548b443-7a32-494b-9dfe-fa788214f5d5

Data as of Sep 17, 2026 (this record's last observation) from federal regulator filings, firm and issuer disclosures. Page built Sep 19, 2026, 10:42 AM UTC and rebuilt at most every 15 minutes.

Fund

Vintage

Lifecycle

ADV type

Form D sold

GAV

LPs

Longtail Feeder Fund II LP

2023

Early deployment

Private Equity Fund

n/a

$24.9M

Drug Royalties Solutions Offshore Fund LLC

2020

Wound down

Private Equity Fund

n/a

Drug Royalties Solutions Fund LLC

2020

Wound down

Private Equity Fund

n/a

$18.1M

Longtail Fund I LP

2020

Mature

Private Equity Fund

n/a

$61.4M

Drug Royalties Fund II LLC

2017

Mature

Private Equity Fund

n/a

$156M

Drug Royalties Cayman Fund II LP

2017

Mature

Private Equity Fund

n/a

$8.6M

Drug Royalties Offshore Fund II LLC

2017

Mature

Private Equity Fund

n/a

$28.5M