Clients
Summittx Capital serves 3 clients. The average client has about $3.37 billion with the firm.
- Pooled investment vehicles3 clients100%
Show client breakdownHide client breakdown
| Client type | Clients | Regulatory AUM | Share | Avg. per client |
|---|---|---|---|---|
| Pooled investment vehicles | 3 | $10,097,280,833 | 100.0% | $3.37B |
| Total | 3 | $10,097,280,833 | 100% | $3.37B |
- Clients
- 3
- Regulatory AUM
- $10,097,280,833
- Share
- 100.0%
- Avg. per client
- $3.37B
Total
- Clients
- 3
- Regulatory AUM
- $10,097,280,833
- Share
- 100%
- Avg. per client
- $3.37B
What it does
Summittx Capital provides portfolio management for pooled vehicles. It is paid through a percentage of assets and performance-based fees.
Summittx Capital advises 3 private funds.
100.0% of assets ($10.10B across 3 accounts) are managed with discretion. 0% of clients are outside the U.S., and 0 clients received advice without assets under management last fiscal year.
Custodians
Summittx Capital has custody of client assets.
- All other custodians$10.10B100%
Ownership and leadership
Summittx Partner Holdings L.P. owns 75% or more of Summittx Capital, and Caroline Cooley is its CEO.
- Owns 75% or more of Summittx Capital, L.P.
Summittx Partner Holdings L.P.
Control person · since January 2026
- Owns 25% to 50% of Summittx Partner Holdings L.P.
Thru Line, L.P.
since January 2026
- Owns 75% or more of Thru Line, L.P.
Fine Line L.P.
since July 2005
Fine Line GP LLC
General partner · since July 2005
- Owns 75% or more of Fine Line GP LLC
Edward Bass
since July 2005
Thru Line GP LLC
General partner · since July 2005
Leadership
- Caroline CooleyChief Executive Officer
- Brian PellerChief Operating Officer
- Courtney PosnerGeneral Counsel & Chief Compliance Officer
- Thomas ArbourCo-Chief Investment Officer
- Alex DidychChief Risk Officer
- Melinda LillyChief Administrative Officer
- John TimotheouChief Technology Officer
Staff
- 70 employees
- 43 in advisory functions
Reported holdings
Summittx Capital’s reported 13F holdings total $3.20B across 744 positions, and the ten largest make up 28.2% of it.
- $3.20B
- Reported 13F value
- 744
- Positions
- 28.2%
- In the 10 largest
- —
- Value vs. prior quarter
- State Str SPDR S&P 500 ETF T · TR Unit14.7%
- Invesco Qqq TR · Unit Ser 15.2%
- Invesco Exchange Traded FD T · S&P500 Eql Wgt1.4%
- ASML Hldg NV · N Y Registry Shs1.2%
- Mks Inc..1.2%
- State Str SPDR S&P Midcap 40 · Utser1 S&pdcrp1.0%
- Griffon Corp.0.9%
- Meritage Homes Corp.0.9%
- Coterra Energy Inc.0.9%
- Topbuild Cor0.9%
Together, the ten largest are 28.2% of reported value.
A 13F covers only exchange-traded long positions the firm holds with discretion, so this $3.20B is not its $10.10B in regulatory assets and does not represent any individual client's portfolio.
Fees
Summittx Capital is paid through a percentage of assets under management and performance-based fees.
Summittx Capital’s fee rates are not included in this profile. Find its brochure on the SEC’s site.
Offices and registrations
Besides its headquarters, Summittx Capital has 1 office, with 2 listed addresses across 2 states.
New York · 1 listed address
- 75 Rockefeller Plaza, New York
Texas · 1 listed address
- 201 Main Street, Suite 1900, Fort WorthHQ
Registration details
- Legal name
- Summittx Capital, L.P.
- Headquarters
- 201 Main Street, Suite 1900, Fort Worth, TX 76102
- Phone
- 817-769-1578
- Website
- www.summittxcapital.com
- SEC file
- 801-131664
- Structure
- Delaware limited partnership
- Fiscal year end
- December
This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov
Common questions
How many clients does Summittx Capital have?
Summittx Capital has 3 clients and manages $10.1 billion for them, as of August 2026.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 26 August 2026
What services does Summittx Capital offer?
Summittx Capital provides portfolio management for pooled vehicles.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
How many financial advisors does Summittx Capital have?
Summittx Capital has 0 investment adviser representatives registered with state securities authorities, out of 70 employees, and 43 perform investment advisory functions. None are registered representatives of a broker-dealer or licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
Who owns Summittx Capital?
Summittx Capital is owned through a chain of holding companies by Edward Bass. Its direct owner is Summittx Partner Holdings L.P. (75% or more).
Source: Form ADV Part 1A, Schedules A and B, filed 26 August 2026
How does Summittx Capital get paid?
Summittx Capital is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file