DFX Intelligence
RIA Intelligence
Registered investment advisers, the advisors registered through them, the capital they report, the private vehicles they run and the people who own them, as a graph with a filing date behind every number. RAUM is what the adviser filed, a move is two registration dates, and a class is a rule you can read.
SEC-registered adviser
Rock Springs Capital
Legal name Rock Springs Capital Management LP
Latest filing Mar 24, 2026
First filing on the tape Aug 23, 2013 · 22 filings
SEC status approved since Sep 27, 2013
RAUM
$2.4B
reported, Item 5.F
Discretionary
100%
of RAUM
Private clients
0.0%
$0 individuals and HNW
Advisors
0
registered through the firm on IAPD
RAUM per advisor
n/a
derived; firm RAUM over IAPD count
Employees
17
8 advisory (5.B.1)
Offices
0
beyond the principal office
Private funds
2
reported on Schedule D
History
22 filings and snapshots on the tape
RAUM$2.4B as of Mar 24, 2026
Jan 22, 2014$319M then
HNW client RAUM: no history
State-registered IARs (5.B.3)0 as of Mar 24, 2026
Jan 22, 20140 then
Employees (5.A)17 as of Mar 24, 2026
Jan 22, 20149 then
Private funds2 as of Mar 24, 2026
Jan 22, 20141 then
RAUM -27% over the last fiscal year-25% a year over threeIARs 0 to 0
Practice profile
derived from the filing of Mar 24, 2026; every figure names its basis
- RAUM per advisor
- unknownderivedRAUM over IAPD advisors; not a book size
- Clients per advisor
- unknownderivedindividual and HNW clients (5.D) over advisors
- Average HNW client
- unknownderivedHNW RAUM over HNW clients
- Average account
- $404MderivedRAUM over accounts (5.F.2.f)
- Discretionary
- 100%derivedof RAUM
- Institutional
- 0.0%derivedpensions, charities, corporations, government, insurance, banks, other advisers
- Employees per advisor
- unknownderivedItem 5.A over advisors
- Advisors per office
- unknownderived1 offices incl. principal (1.F.5)
- RAUM growth, one year
- -27%derivedbetween the last two annual amendments
- Advisor growth, one year
- unknownderivedItem 5.B.3 between annual amendments
- Client growth, one year
- unknownderived
- Compensation
- percentage of assets, performance-basedreportedItem 5.E
- Advisory activities
- portfolio management for pooled vehiclesreportedItem 5.G
- Ownership
- no PE, bank or public-company owner found on Schedule Aderived
- Advisor book size
- not public; not estimatedreported
Also answered yes on Form ADV
- buys or sells securities as principal to or from clients (8.A.2)
- has discretionary authority over which securities are bought or sold (8.C.1)
- receives research or other products from a broker-dealer, soft dollars (8.E)
- compensates persons for client referrals (8.G.1)
- compensates non-employees for client referrals (8.G.2)
- a related person has custody of client cash (9.B.1.a)
- a related person has custody of client securities (9.B.1.b)
Where the RAUM sits
Form ADV Item 5.D, latest filing
- Pooled investment vehicles$2.4B100%
- Individual clients
- n/areported
- HNW clients
- n/areported
- Pension plan clients
- n/areported
- Charitable clients
- n/areported
- Accounts
- 6reported
- Financial planning clients
- reported
- Wrap fee programs
- noreported
- Custody of client assets
- noreported
- Compensation
- % of AUM, performancereported
- Class basis
- private_client_share=0.0 fund_share=1.0 institutional_share=0.0 related_bd=false related_bank=true bd_reps=0.0derived
Advisors registered through the firm
0 on IAPD today, longest tenure first
No representative is registered through this CRD on IAPD.
Advisor movement
Left, latest
none on the tape
Joined, latest
none on the tape
Private funds
2 reported on Schedule D 7.B.(1)
| Fund | Type | Gross assets | Owners | First reported |
|---|---|---|---|---|
| Rock Springs Capital Master Fund LP | Hedge Fund | $5.5B | 635 | Jan 22, 2014 |
| Four Pines Master Fund LP | Hedge Fund | $264M | 25 | Mar 30, 2020 |
Owners and control persons
Schedule A and B, latest filing
- Margraf ("Mark") Gordon Bussard · Member/Limited Partnercontrolsince 03/2013 · owns 25% to 50%
- Harlan Kris Jenner · Member/Limited Partnercontrolsince 03/2013 · owns 25% to 50%
- Morgan Graham Mcphail · Member/Limited Partnercontrolsince 03/2013 · owns 25% to 50%
- Margraf ("Mark") Gordon Bussard · Membercontrolsince 03/2013 · owns 25% to 50% of Rock Springs Capital LLC
- Harlan Kris Jenner · Membercontrolsince 03/2013 · owns 25% to 50% of Rock Springs Capital LLC
- Morgan Graham Mcphail · Membercontrolsince 03/2013 · owns 25% to 50% of Rock Springs Capital LLC
- C Nnamdi Etoh · Chief Financial Officersince 01/2021 · owns less than 5%
- Hugh Aidan O'Connor · Chief Compliance Officer And General Counselsince 10/2022 · owns less than 5%
Entity owners
- Rock Springs Capital LLC · General Partnerdirect · owns less than 5%
Related persons
Schedule D 7.A
- Four Pines General Partner LLCinvestment adviserbankpooled vehicle sponsorn
- Rock Springs General Partner LLCinvestment adviserbankpooled vehicle sponsorn
Offices
Schedule D 1.F, the 25 largest
No branch office listed.
ADV anomalies
1 against comparable advisers; where to look, not conclusions
- RAUM down 25 %Change between filings · filing Mar 24, 2026RAUM (Item 5.F) moved from $3,324,419,780 to $2,426,287,072 (-27.0%) between the annual amendments of 2025-03-14 and 2026-03-24; the peer median change was +11.0% (1368 comparable advisers, 4.0th percentile of changes)peers: asset managers, $1B to $5B (1,368) · 3.8% percentile
What changed
consecutive filings, newest first
- Advisory employees · 9 to 8Mar 14, 2025 to Mar 24, 2026
- Employees · 20 to 17Mar 14, 2025 to Mar 24, 2026
- Discretionary RAUM · $3.3B to $2.4BMar 14, 2025 to Mar 24, 2026
- Pooled vehicle RAUM · $3.3B to $2.4BMar 14, 2025 to Mar 24, 2026
- RAUM · $3.3B to $2.4BMar 14, 2025 to Mar 24, 2026
- Advisory employees · 7 to 9Mar 27, 2024 to Mar 14, 2025
- Employees · 18 to 20Mar 27, 2024 to Mar 14, 2025
- Financial planning clients · unset to Mar 27, 2024 to Mar 14, 2025
- Discretionary RAUM · $5.8B to $3.3BMar 27, 2024 to Mar 14, 2025
- Pooled vehicle RAUM · $5.8B to $3.3BMar 27, 2024 to Mar 14, 2025
- RAUM · $5.8B to $3.3BMar 27, 2024 to Mar 14, 2025
- Advisory employees · 9 to 7Mar 31, 2023 to Mar 27, 2024
- Employees · 20 to 18Mar 31, 2023 to Mar 27, 2024
- Discretionary RAUM · $5.7B to $5.8BMar 31, 2023 to Mar 27, 2024
- Pooled vehicle RAUM · $5.7B to $5.8BMar 31, 2023 to Mar 27, 2024
- RAUM · $5.7B to $5.8BMar 31, 2023 to Mar 27, 2024
- Employees · 21 to 20Nov 8, 2022 to Mar 31, 2023
- Discretionary RAUM · $5.9B to $5.7BNov 8, 2022 to Mar 31, 2023
- Pooled vehicle RAUM · $5.9B to $5.7BNov 8, 2022 to Mar 31, 2023
- RAUM · $5.9B to $5.7BNov 8, 2022 to Mar 31, 2023
- Employees · 19 to 21Mar 31, 2021 to Mar 31, 2022
- Discretionary RAUM · $5.5B to $5.9BMar 31, 2021 to Mar 31, 2022
- Pooled vehicle RAUM · $5.5B to $5.9BMar 31, 2021 to Mar 31, 2022
- RAUM · $5.5B to $5.9BMar 31, 2021 to Mar 31, 2022
- Advisory employees · 8 to 9Mar 30, 2020 to Mar 31, 2021
- Employees · 17 to 19Mar 30, 2020 to Mar 31, 2021
- Discretionary RAUM · $3.6B to $5.5BMar 30, 2020 to Mar 31, 2021
- Pooled vehicle RAUM · $3.6B to $5.5BMar 30, 2020 to Mar 31, 2021
- RAUM · $3.6B to $5.5BMar 30, 2020 to Mar 31, 2021
- Accounts · 3 to 6Feb 3, 2020 to Mar 30, 2020
- Advisory employees · 9 to 8Feb 3, 2020 to Mar 30, 2020
- Pooled vehicle clients · 2 to 6Feb 3, 2020 to Mar 30, 2020
- Employees · 19 to 17Feb 3, 2020 to Mar 30, 2020
- Private funds · 1 to 2Feb 3, 2020 to Mar 30, 2020
- Discretionary RAUM · $2.4B to $3.6BFeb 3, 2020 to Mar 30, 2020
- Pooled vehicle RAUM · $2.4B to $3.6BFeb 3, 2020 to Mar 30, 2020
- RAUM · $2.4B to $3.6BFeb 3, 2020 to Mar 30, 2020
- Advisory employees · 8 to 9Mar 29, 2018 to Jan 31, 2019
- Employees · 18 to 19Mar 29, 2018 to Jan 31, 2019
- Discretionary RAUM · $2.5B to $2.4BMar 29, 2018 to Jan 31, 2019
Signals
6 dated events
- Rock Springs Capital reported RAUM $2.4B, down 27% from $3.3B (2025-03-14 to 2026-03-24)Mar 24, 2026 · RAUM change · derived
- Rock Springs Capital reported RAUM $3.3B, down 42% from $5.8B (2024-03-27 to 2025-03-14)Mar 14, 2025 · RAUM change · derived
- Rock Springs Capital reported RAUM $5.5B, up 55% from $3.6B (2020-03-30 to 2021-03-31)Mar 31, 2021 · RAUM change · derived
- Rock Springs Capital reported RAUM $3.6B, up 48% from $2.4B (2020-02-03 to 2020-03-30)Mar 30, 2020 · RAUM change · derived
- Rock Springs Capital reported RAUM $2.5B, up 50% from $1.7B (2017-03-31 to 2018-03-29)Mar 29, 2018 · RAUM change · derived
- Rock Springs Capital Lp filed its initial SEC registration (Form ADV)Aug 23, 2013 · First SEC registration · fact
Across DFX
shared identifiers only, never a name match
No identifier-backed link to the venture, private equity, family office or sponsor graphs.
How to reach
public business contact points only, each with its source
- Firm profile
- linkedin.com/company/rock-springs-capitalreportedpublic record, Form ADV, Sep 17, 2026
- Website
- ROCKSPRINGSCAPITAL.COMreportedpublic record, Form ADV, Sep 17, 2026
- Principal office phone
- 410-220-0130reportedpublic record, Form ADV, Mar 24, 2026
Provenance
- Form ADV
- SEC filing data 2011 to 2024 and the monthly roster 2025 onreportedadviserinfo.sec.gov
- Advisors
- IAPD individual compilation feed, dailyreportedadviserinfo.sec.gov
- Class
- Asset manager (funds and pooled vehicles)deriveda rule over Items 5.D and 7.A
- RAUM per advisor
- n/aderivedfirm RAUM over the IAPD count; not a book size
- Loaded
- Sep 14, 2026