Summittx Capital, L.P.
- Regulatory AUM
- $10.1B
- Discretionary
- $10.1B
- Clients
- 3
- Avg AUM / client
- $3.4B
- Accounts
- 3
- Employees
- 70
AUM over time
Annual snapshots from Form ADV filings · as of Mar 31, 2026
Investments (13F portfolio — 739 positions, $3,201,933,820)
13F period Mar 31, 2026| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | State Str Spdr S&P 500 Etf T | TR UNIT | $483,630,544 | 743,658 | 15.1% | 4.79% |
| 2 | Invesco Qqq Tr | UNIT SER 1 | $166,419,464 | 288,332 | 5.2% | 1.65% |
| 3 | Warner Bros Discovery Inc | COM SER A | $46,021,642 | 1,675,952 | 1.44% | 0.46% |
| 4 | Invesco Exchange Traded Fd T | S&P500 EQL WGT | $44,971,078 | 234,322 | 1.4% | 0.45% |
| 5 | Asml Hldg Nv | N Y REGISTRY SHS | $37,254,010 | 28,205 | 1.16% | 0.37% |
| 6 | Mks Inc. | COM | $36,978,497 | 160,909 | 1.15% | 0.37% |
| 7 | State Str Spdr S&P Midcap 40 | UTSER1 S&PDCRP | $32,986,792 | 53,484 | 1.03% | 0.33% |
| 8 | Griffon Corp | COM | $30,200,793 | 415,531 | 0.94% | 0.3% |
| 9 | Meritage Homes Corp | COM | $29,164,610 | 471,614 | 0.91% | 0.29% |
| 10 | Coterra Energy Inc | COM | $28,306,078 | 805,523 | 0.88% | 0.28% |
| 11 | Topbuild Cor | COM | $27,290,389 | 77,684 | 0.85% | 0.27% |
| 12 | Nvr Inc | COM | $27,044,662 | 4,104 | 0.84% | 0.27% |
| 13 | Cisco Sys Inc | COM | $27,000,854 | 347,994 | 0.84% | 0.27% |
| 14 | Ge Aerospace | COM NEW | $25,562,002 | 90,080 | 0.8% | 0.25% |
| 15 | Nvidia Corporation | COM | $25,119,878 | 144,036 | 0.78% | 0.25% |
| 16 | Amazon Com Inc | COM | $23,997,911 | 115,225 | 0.75% | 0.24% |
| 17 | Kirby Corp | COM | $22,091,832 | 166,254 | 0.69% | 0.22% |
| 18 | Applied Matls Inc | COM | $21,212,171 | 62,062 | 0.66% | 0.21% |
| 19 | Electronic Arts Inc | COM | $20,387,000 | 100,000 | 0.64% | 0.2% |
| 20 | Clearwater Analytics Hldgs I | CL A | $20,171,085 | 852,900 | 0.63% | 0.2% |
| 21 | Entergy Corp New | COM | $19,838,843 | 176,565 | 0.62% | 0.2% |
| 22 | Alliant Energy Corp | COM | $19,426,580 | 270,716 | 0.61% | 0.19% |
| 23 | Taiwan Semiconductor Manufac | SPONSORED ADS | $17,647,749 | 52,220 | 0.55% | 0.17% |
| 24 | Ameren Corp | COM | $17,327,789 | 157,640 | 0.54% | 0.17% |
| 25 | American Elec Pwr Co Inc | COM | $16,847,581 | 128,529 | 0.53% | 0.17% |
Top 25 of 739 positions from the manager's latest Form 13F · source filing (EDGAR) ↗. 13F covers long US-listed positions only. "% of AUM" is share of the firm's total regulatory AUM (Form ADV Item 5.F).
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Pooled investment vehicles (non-investment companies) | 3 | $10.1B | 100.0% |
People (9)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Douglas Kelvin Bratton | Sole Shareholder | Dec 1997 (29y) | 75% or more of Crestline Investors, Inc. (indirect) | |
| Bass, Edward | Member | Jul 2005 (21y) | 75% or more of Fine Line Gp Llc (indirect) | |
| Arbour, Thomas, Neilson | Deputy Chief Investment Officer | Nov 2024 (2y) | Less than 5% | |
| Cooley, Caroline, Ann | Chief Investment Officer | Nov 2024 (2y) | Less than 5% | |
| Didych, Alex | Chief Risk Officer | Nov 2024 (2y) | Less than 5% | |
| Lilly, Melinda, Anne | Chief Administrative Officer | Nov 2024 (2y) | Less than 5% | |
| Mcgowan, Shaun, Neil | Chief Compliance Officer | Nov 2024 (2y) | Less than 5% | |
| Nelson, Scott, Michael | Head Of Client Partnership Group | Nov 2024 (2y) | Less than 5% | |
| Peller, Brian | Chief Operating Officer | Nov 2024 (2y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Crestline Management, L.P. | Limited Partner | Nov 2024 | A | 75% or more |
| Summittx Investors, Llc | General Partner | Nov 2024 | A | Less than 5% |
| Crestline Management, L.P. | Sole Owner | Sep 2023 | B | ≈ 0% – 5% via Summittx Investors, Llc |
| Fine Line L.P. | Limited Partner | Jul 2005 | B | ≈ 14.06% – 50% via Thru Line, L.P. |
| Thru Line, L.P. | Limited Partner | Jan 2016 | B | ≈ 18.75% – 50% via Crestline Management, L.P. |
| Crestline Investors, Inc. | General Partner | Jan 1998 | B | GP / trustee / elected manager of Crestline Management, L.P. (indirect) |
| Thru Line Gp Llc | General Partner | Jul 2005 | B | GP / trustee / elected manager of Thru Line, L.P. (indirect) |
| Fine Line Gp Llc | General Partner | Jul 2005 | B | GP / trustee / elected manager of Fine Line L.P. (indirect) |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Crestline Management, L.P.: 75% – 100% of Summittx Investors, Llc × 0% – 5% direct ≈ 0% – 5% of the firm
- Fine Line L.P.: 75% – 100% of Thru Line, L.P. × 25% – 50% of Crestline Management, L.P. × 75% – 100% direct ≈ 14.06% – 50% of the firm
- Thru Line, L.P.: 25% – 50% of Crestline Management, L.P. × 75% – 100% direct ≈ 18.75% – 50% of the firm
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 03/31/2026 | 1.9 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Performance-based fees
Services
- • Portfolio management for pooled investment vehicles
Custody
Firm reports it does not have custody of client funds or securities (Item 9.A).
No custodian data reported or mined yet.
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Mar 31, 2026.
View current Form ADV (SEC/IAPD) ↗