Wasserstein Management, L.P. — 13F Holdings & Portfolio
CIK 1751492 · latest 13F-HR filed 2026-08-14
Wasserstein Management, L.P. manages $264.0M in 13F-reported U.S. long-equity assets across 8 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are CLMT (54.09%), AEVA (16.42%), WULF (12.79%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 2 new positions and exited 1; 2 existing positions rose in reported value and 1 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 100%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 30, 2020.
39TH FLOOR
NEW YORK, NY 10036
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| BAGARIA, ANUP, "NMN" Control | CO-MANAGING PARTNER since Jan 2001 | Less than 5% | Individual |
| FOGELSON, ROBERT, ANDREW Control | MANAGING DIRECTOR since Jan 2001 | Less than 5% | Individual |
| JONES, ELLIS, BRADLEY Control | CHAIRMAN since Jun 2011 | Less than 5% | Individual |
| MAJOROS, GEORGE, LOUIS Control | CO-MANAGING PARTNER since Jan 2001 | Less than 5% | Individual |
| MCCAVITT, STEPHANIE, RITRIVI Control | GENERAL COUNSEL / CHIEF COMPLIANCE OFFICER since Feb 2020 | Less than 5% | Individual |
| MERSTEN, ROBERT, S Control | CHIEF FINANCIAL OFFICER, SECRETARY since Jan 2001 | Less than 5% | Individual |
| WASSERSTEIN CAPITAL, L.P. Control | LIMITED PARTNER since Dec 2000 | 75% or more | Domestic Entity |
| WASSERSTEIN INVESTMENTS, L.L.C. Control | GENERAL PARTNER since Dec 2000 | Less than 5% | Domestic Entity |
| CDLTT LLC Control Indirect owner via WASSERSTEIN CAPITAL, L.P. | LIMITED PARTNER since Jan 2014 | 25–50% | Domestic Entity |
| CDLTT LLC Control Indirect owner via WASSERSTEIN HOLDINGS, L.L.C. | MEMBER since Jan 2014 | 25–50% | Domestic Entity |
| WASSERSTEIN FAMILY TRUST, L.L.C. Control Indirect owner via WASSERSTEIN CAPITAL, L.P. | LIMITED PARTNER since Jan 2001 | 25–50% | Domestic Entity |
| WASSERSTEIN FAMILY TRUST, L.L.C. Control Indirect owner via WASSERSTEIN HOLDINGS, L.L.C. | MEMBER since Jan 2001 | 25–50% | Domestic Entity |
| WASSERSTEIN HOLDINGS, L.L.C. Control Indirect owner via WASSERSTEIN INVESTMENTS, L.L.C. | SOLE MEMBER since Jan 2001 | 75% or more | Domestic Entity |
| WASSERSTEIN INVESTMENTS, L.L.C. Control Indirect owner via WASSERSTEIN CAPITAL, L.P. | GENERAL PARTNER since Jan 2001 | General partner, trustee or manager | Domestic Entity |
Ownership & leadership changes · 6 filings with changes since Feb 14, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- AddedMCCAVITT, STEPHANIE, RITRIVI · GENERAL COUNSEL / CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ChangedMAJOROS, GEORGE, LOUIS · title CO-MANAGING PARTNER, CHIEF COMPLIANCE OFFICER → CO-MANAGING PARTNER
- ChangedWASSERSTEIN CAPITAL, L.P. · title PARTNER → LIMITED PARTNER
- No longer listedBAGARIA, RAJAY, PRAKASH · MANAGING DIRECTOR · Less than 5% · control person · listed since Oct 2012
- No longer listedWASSERSTEIN & CO., L.P. · LIMITED PARTNER (WASSERSTEIN DEBT OPPORTUNITIES MANAGEMENT, LP) · 75% or more · control person · listed since Feb 2013
- ChangedWASSERSTEIN INVESTMENTS, L.L.C. · title GENERAL PARTNER / GENERAL PARTNER (WASSERSTEIN DEBT OPPORTUNITIES MANAGEMENT, LP) → GENERAL PARTNER
- No longer listedRAMESH, RENGARAJAN · MANAGING DIRECTOR · Less than 5% · control person · listed since May 2011
- No longer listedCRANBERRY DUNE 1998 LONG TERM TRUST · PARTNER · 25–50% · indirect via WASSERSTEIN CAPITAL, L.P. · control person · listed since Jan 2001
- AddedCDLTT LLC · LIMITED PARTNER · 25–50% · indirect via WASSERSTEIN CAPITAL, L.P. · control person
- AddedCDLTT LLC · MEMBER · 25–50% · indirect via WASSERSTEIN HOLDINGS, L.L.C. · control person
- AddedWASSERSTEIN FAMILY TRUST, L.L.C. · MEMBER · 25–50% · indirect via WASSERSTEIN HOLDINGS, L.L.C. · control person
- ChangedBAGARIA, ANUP, "NMN" · title VICE CHAIRMAN, MANAGING DIRECTOR → CO-MANAGING PARTNER
- ChangedMAJOROS, GEORGE, LOUIS · title PRESIDENT, CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER → CO-MANAGING PARTNER, CHIEF COMPLIANCE OFFICER
- ChangedWASSERSTEIN FAMILY TRUST, L.L.C. · indirect via WASSERSTEIN CAPITAL, L.P.: title PARTNER → LIMITED PARTNER
- No longer listedHUANG, THOMAS, IBSEN · MANAGING DIRECTOR · Less than 5% · control person · listed since Jan 2012
- AddedBAGARIA, RAJAY, PRAKASH · MANAGING DIRECTOR · Less than 5% · control person
- AddedHUANG, THOMAS, IBSEN · MANAGING DIRECTOR · Less than 5% · control person
- AddedRAMESH, RENGARAJAN · MANAGING DIRECTOR · Less than 5% · control person
- AddedWASSERSTEIN & CO., L.P. · LIMITED PARTNER (WASSERSTEIN DEBT OPPORTUNITIES MANAGEMENT, LP) · 75% or more · control person
- ChangedWASSERSTEIN INVESTMENTS, L.L.C. · title GENERAL PARTNER → GENERAL PARTNER / GENERAL PARTNER (WASSERSTEIN DEBT OPPORTUNITIES MANAGEMENT, LP)
- ListedBAGARIA, ANUP, "NMN" · VICE CHAIRMAN, MANAGING DIRECTOR · Less than 5% · control person
- ListedCRANBERRY DUNE 1998 LONG TERM TRUST · PARTNER · 25–50% · indirect via WASSERSTEIN CAPITAL, L.P. · control person
- ListedFOGELSON, ROBERT, ANDREW · MANAGING DIRECTOR · Less than 5% · control person
- ListedJONES, ELLIS, BRADLEY · CHAIRMAN · Less than 5% · control person
- ListedMAJOROS, GEORGE, LOUIS · PRESIDENT, CHIEF OPERATING OFFICER, CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedMERSTEN, ROBERT, S · CHIEF FINANCIAL OFFICER, SECRETARY · Less than 5% · control person
- ListedWASSERSTEIN CAPITAL, L.P. · PARTNER · 75% or more · control person
- ListedWASSERSTEIN FAMILY TRUST, L.L.C. · PARTNER · 25–50% · indirect via WASSERSTEIN CAPITAL, L.P. · control person
- ListedWASSERSTEIN HOLDINGS, L.L.C. · SOLE MEMBER · 75% or more · indirect via WASSERSTEIN INVESTMENTS, L.L.C. · control person
- ListedWASSERSTEIN INVESTMENTS, L.L.C. · GENERAL PARTNER · Less than 5% · control person
- ListedWASSERSTEIN INVESTMENTS, L.L.C. · GENERAL PARTNER · General partner, trustee or manager · indirect via WASSERSTEIN CAPITAL, L.P. · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- AEVA TECHNOLOGIES INC$34.1M +370.5%
- TERAWULF INC$18.5M +121.4%
Wasserstein Management, L.P. Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | CALUMET INC | CLMT | 131428104 | $142.8M | 54.09% | 3,964,893 | SH |
| 2 | AEVA TECHNOLOGIES INC | AEVA | 00835Q202 | $43.4M | 16.42% | 1,509,539 | SH |
| 3 | TERAWULF INC | WULF | 88080T104 | $33.8M | 12.79% | 1,366,639 | SH |
| 4 | ENERGY VAULT HOLDINGS INC | NRGV | 29280W109 | $13.1M | 4.97% | 2,785,924 | SH |
| 5 | ENERGY VAULT HOLDINGS INC Call | NRGV | 29280W109 | $9.4M | 3.57% | 2,000,000 | SH |
| 6 | AEVA TECHNOLOGIES INC Call | AEVA | 00835Q202 | $7.5M | 2.84% | 261,500 | SH |
| 7 | AEVA TECHNOLOGIES INC Put | AEVA | 00835Q202 | $7.5M | 2.84% | 261,500 | SH |
| 8 | PROSHARES TR | TWM | 74347G168 | $6.5M | 2.47% | 315,900 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $264.0M | 8 | 0001751492-26-000005 |
| 2026-03-31 | 2026-05-15 | $188.8M | 4 | 0001751492-26-000004 |
| 2025-12-31 | 2026-02-17 | $110.7M | 1 | 0001751492-26-000001 |
| 2025-09-30 | 2025-11-14 | $106.2M | 1 | 0001751492-25-000004 |
SUITE 1626
NEW YORK, NY 10170