Black Diamond Capital Management I, Lllp
SEC-registered
Private Fund Manager · Large ($10B–$100B)
CRD 154495
· SEC file 801-71712
· St. Thomas, VI
· www.linkedin.com
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ADV data as of Jul 13, 2026
- Regulatory AUM
- $10.7B
- Discretionary
- $10.7B
- Clients
- 38
- Avg AUM / client
- $282M
- Accounts
- 38
- Employees
- 100
AUM over time
$8.0B
$11.3B
Dec 2011
Jul 2026
Annual snapshots from Form ADV filings · as of Jul 13, 2026
Investments (13F portfolio — 13 positions, $171,580,404)
13F period Jun 30, 2025| # | Issuer | Class | Value | Shares | % of 13F | % of AUM |
|---|---|---|---|---|---|---|
| 1 | Consumer Portfolio Svcs Inc | COM | $50,400,032 | 5,127,165 | 29.4% | 0.47% |
| 2 | Verizon Communications Inc | COM | $26,964,609 | 623,171 | 15.7% | 0.25% |
| 3 | Kvh Inds Inc | COM | $18,103,489 | 3,396,527 | 10.6% | 0.17% |
| 4 | Canterbury Pk Hldg Corp | COM | $16,113,074 | 854,805 | 9.39% | 0.15% |
| 5 | Wynn Resorts Ltd | COM | $15,751,360 | 168,158 | 9.18% | 0.15% |
| 6 | Ubs Group Ag | SHS | $11,837,000 | 350,000 | 6.9% | 0.11% |
| 7 | Six Flags Entertainment Corp | COM | $10,039,466 | 329,920 | 5.85% | 0.09% |
| 8 | Magnera Corp | COM SHS | $9,060,000 | 750,000 | 5.28% | 0.08% |
| 9 | Boyd Gaming Corp | COM | $6,414,860 | 82,000 | 3.74% | 0.06% |
| 10 | Clearwater Paper Corp | COM | $3,364,358 | 123,508 | 1.96% | 0.03% |
| 11 | Berkshire Hathaway Inc Del | CL A | $2,915,200 | 4 | 1.7% | 0.03% |
| 12 | Commercial Veh Group Inc | COM | $581,000 | 350,000 | 0.34% | 0.01% |
| 13 | Inotiv Inc | COM | $35,956 | 19,756 | 0.02% | 0.0% |
Top 25 of 13 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) | 38 | $10.7B | 100.0% |
Private funds (34)
View all →Reported in Form ADV Section 7.B.(1), filing of Mar 2024 · $10.9B combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| Bdcm Opportunity Fund Iv, L.P. master | Private Equity Fund | Delaware | $3.0B | 93 |
| Bdcm Opportunity Fund Iii, L.P. master | Private Equity Fund | Delaware | $1.5B | 51 |
| Black Diamond Credit Strategies, L.P. feeder | Hedge Fund | Delaware | $1.1B | 44 |
| Bdcm Opportunity Fund V, L.P. master | Private Equity Fund | Delaware | $722M | 65 |
| Black Diamond Credit Strategies Offshore, Ltd. feeder | Hedge Fund | Cayman Islands | $631M | 22 |
| Black Diamond Clo 2019 2, Ltd. | Securitized Asset Fund | Cayman Islands | $491M | 0 |
| Black Diamond Clo 2016 1, Ltd. | Securitized Asset Fund | Cayman Islands | $449M | 0 |
| Black Diamond Clo 2019 1, Designated Activity Company | Securitized Asset Fund | Ireland | $434M | 0 |
| Black Diamond Clo 2021 1, Ltd. | Securitized Asset Fund | Cayman Islands | $397M | 0 |
| Black Diamond Clo 2022 1, Ltd. | Securitized Asset Fund | Cayman Islands | $373M | 0 |
| Black Diamond Clo 2017 2, Designated Activity Company | Securitized Asset Fund | Ireland | $332M | 0 |
| Bdcm Strategic Capital Fund I, L.P. master | Private Equity Fund | Delaware | $259M | 15 |
| Black Diamond Clo 2017 1, Ltd. | Securitized Asset Fund | Cayman Islands | $221M | 0 |
| Bdcm Offshore Opportunity Fund Iv Aiv, L.P. | Private Equity Fund | Cayman Islands | $156M | 18 |
| Bdcm Rcpr Fund, L.P. | Real Estate Fund | Delaware | $116M | 11 |
People (3)
| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Deckoff, Stephen, Henry | Managing Principal | Dec 1995 (31y) | ≈ 42.19% – 100% via Sd Investments, Llc | |
| Nahas, Mounir, A (Mi Only) | Chief Operating Officer | Mar 2004 (22y) | Less than 5% | |
| Kane, Matthew, David | General Counsel & Chief Compliance Officer | Sep 2023 (3y) | Less than 5% |
Entity owners (Schedule A/B)
| Entity | Title / status | Since | Sch. | Ownership |
|---|---|---|---|---|
| Black Diamond Capital Holdings, L.L.C. | Member | Oct 2006 | A | 75% or more |
| Sd Investments, Llc | Member | Oct 2006 | B | ≈ 56.25% – 100% via Black Diamond Capital Holdings, L.L.C. |
Undisclosed: 0% – 25% of the firm is not attributable from the filed Schedule A bands.
Estimated effective ownership (look-through of filed bands):
- Deckoff, Stephen, Henry: 75% – 100% of Sd Investments, Llc × 75% – 100% of Black Diamond Capital Holdings, L.L.C. × 75% – 100% direct ≈ 42.19% – 100% of the firm
- Sd Investments, Llc: 75% – 100% of Black Diamond Capital Holdings, L.L.C. × 75% – 100% direct ≈ 56.25% – 100% 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.
Private funds (34, $10.9B gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| Bdcm Opportunity Fund Iv, L.P. | Private Equity Fund | $3.0B | $5.0M | 93 |
| Bdcm Opportunity Fund Iii, L.P. | Private Equity Fund | $1.5B | $5.0M | 51 |
| Black Diamond Credit Strategies, L.P. | Hedge Fund | $1.1B | $5.0M | 44 |
| Bdcm Opportunity Fund V, L.P. | Private Equity Fund | $722M | $5.0M | 65 |
| Black Diamond Credit Strategies Offshore, Ltd. | Hedge Fund | $631M | $5.0M | 22 |
| Black Diamond Clo 2019 2, Ltd. | Securitized Asset Fund | $491M | $0 | 0 |
| Black Diamond Clo 2016 1, Ltd. | Securitized Asset Fund | $449M | $0 | 0 |
| Black Diamond Clo 2019 1, Designated Activity Company | Securitized Asset Fund | $434M | $0 | 0 |
| Black Diamond Clo 2021 1, Ltd. | Securitized Asset Fund | $397M | $0 | 0 |
| Black Diamond Clo 2022 1, Ltd. | Securitized Asset Fund | $373M | $0 | 0 |
| Black Diamond Clo 2017 2, Designated Activity Company | Securitized Asset Fund | $332M | $0 | 0 |
| Bdcm Strategic Capital Fund I, L.P. | Private Equity Fund | $259M | $5.0M | 15 |
| Black Diamond Clo 2017 1, Ltd. | Securitized Asset Fund | $221M | $0 | 0 |
| Bdcm Offshore Opportunity Fund Iv Aiv, L.P. | Private Equity Fund | $156M | $0 | 18 |
| Bdcm Rcpr Fund, L.P. | Real Estate Fund | $116M | $0 | 11 |
| Fusion Coinvest, L.P. | Private Equity Fund | $113M | $1.0M | 11 |
| Black Diamond Clo 2015 1, Designated Activity Company | Securitized Asset Fund | $107M | $100K | 0 |
| Bdcm Special Purpose Master Ltd. | Hedge Fund | $93.9M | $5.0M | 28 |
| Bdcm Opportunity Fund Ii, L.P. | Private Equity Fund | $91.4M | $10.0M | 61 |
| Bdcm Opportunity Fund Iv Aiv, L.P. | Private Equity Fund | $88.7M | $0 | 65 |
| Bdcm Triarc Coinvest, L.P. | Private Equity Fund | $68.1M | $0 | 12 |
| Bdcm Partners I, L.P. | Hedge Fund | $35.1M | $5.0M | 30 |
| Black Diamond Clo 2023 1 Designated Activity Company | Securitized Asset Fund | $29.0M | $0 | 0 |
| Gsc Abs Cdo 2006 2 M, Ltd. | Securitized Asset Fund | $22.4M | $250K | 0 |
| Black Diamond Clo 2023 2, Ltd. | Securitized Asset Fund | $20.6M | $0 | 0 |
Top 25 of 34 funds by gross assets · all funds
From Form ADV Section 7.B private fund reporting.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 07/13/2026 | 13.7 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 having 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: Jul 13, 2026.
View current Form ADV (SEC/IAPD) ↗