All funds
stone-ridge-asset-management logo

stone-ridge-asset-management

$225Tdisclosed portfolio round capital
4 Jun, 2021last investment
4portfolio companies
7team members

Analyst signals

Portfolio activity and matriculation

Metrics use all recorded activity through 21 Jul 2026 across series a, unknown. Later-round outcomes are capped at the period end.

75%companies with a later round · 3/4
2.35×median round-size step-up · n=3
Not availablemedian valuation step-up · n=0
0%recorded-solo rate · 0 solo / 4 syndicated
Finance · 2 companies

These are activity signals, not fund-return metrics. Round capital is the full disclosed financing amount, not this fund's check size. “Recorded solo” means only one investor is present in the source data and is a lead signal, not verified lead status; syndicated rounds are a co-investor or follower signal. IRR, TVPI, DPI, ownership, exits, and market beta cannot be calculated from the available records.

Opportunities

Crypto jobs across stone-ridge-asset-management's portfolio

1 current roles at companies backed by stone-ridge-asset-management, sourced from JobStash's crypto job board.

People

Team

J

Jim Rothwell

Head of Legal

M

Mike Sapnar

Head of Insurance Solutions & CEO of Longtail Re

P

Paul Germain

President of Stone Ridge Asset Management

R

Ross Stevens

Founder & CEO

T

Tejas Shah

Investment Committee & CEO of NYDIG

T

Tomer Seifan

Head of Stone Ridge Energy & Group CFO

Y

Yan Zhao

Head of Investment Committee & President of Stone Ridge Holdings Group

Portfolio

Investments

Full financing histories for portfolio companies. Highlighted rounds are those where stone-ridge-asset-management is recorded as an investor.

Alto logo

Alto

fintech
Finance

Alto is a self-directed IRA platform for investing retirement funds in alternative private-market assets. It provides IRA custody, a marketplace of curated private investments, integrations with partner platforms, and a portal for issuers and investors to raise and deploy IRA capital.

M&A1 Nov, 2025
Series B1 Jan, 2022$40M round
Series A1 Apr, 2021$17M roundSyndicated · 9 disclosed investors
Series A1 Mar, 2021$31M round
Unknown1 Jan, 2020$3.5M round
Seed1 Aug, 2019$5.4M round
Seed1 Mar, 2019$2.8M round
Unknown1 Oct, 2017$1.6M round
Unknown1 May, 2017
NYDIG logo

NYDIG

crypto
Uncategorized

Comprehensive Bitcoin financial services including custody, trading, and asset management.

Private Equity14 Dec, 2021$1000T round
Unknown1 Dec, 2021$1B round
Corporate Round8 Apr, 2021$100T round
Unknown1 Apr, 2021$100M round
Unknown8 Mar, 2021$200T roundSyndicated · 11 disclosed investors
Corporate Round10 Dec, 2020$5T round
Private Equity13 Oct, 2020$50T round
Unknown1 Oct, 2020$50M round
Seed1 Jun, 2019$3.2M round
Seed1 Mar, 2018
Series A1 Jul, 2017$50T round
Series A1 Jan, 2017$50M round
Finance

Unchained Capital provides bitcoin financial services centered on collaborative multisig custody. It serves individuals, families, trusts, and businesses with bitcoin vaults, trading, retirement accounts, loans, inheritance planning, and related support.

Series A4 Jun, 2021$25T roundSyndicated · 9 disclosed investors
Seed1 Mar, 2021$5.5T round
Seed6 Jun, 2018$3T round
Pre-Seed1 Jun, 2018$3M round