Wasserstein Management, L.P.

Fundamental diversified ★Signal energy specialist (87%) CIK 1751492
Long book
$188.8M
Q1 2026
Positions
4
Top-10 weight
100%
concentration
Last quarter
+9.1%
SPY +14.8%
Turnover
75%
of book per quarter

Strategy in plain words

auto-generated from filings

Wasserstein Management, L.P. is a diversified fundamental manager, specialised in energy (87% of the long book), running a $188.8M US long book across 4 positions.

The portfolio is extremely concentrated — the top 10 positions are almost the whole book. Turnover is high — positions rotate quickly, so individual names matter less than the process. Current anchor positions: CALUMET INC, TERAWULF INC, AEVA TECHNOLOGIES INC, PURECYCLE TECHNOLOGIES INC.

Over the last 7 quarters its long book ran on average 12.8pp per quarter ahead of the S&P 500, beating the index in 5 of 7 quarters. We rate its filings as signal-bearing: position changes reflect genuine views.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q3 2024
+23.6%
Q4 2024
-42.4%
Q1 2025
+24.3%
Q2 2025
+15.8%
Q3 2025
+8.9%
Q4 2025
+80.7%
Q1 2026
+9.1%

Sector allocation

Energy
87%
Financials
8%
Industrials
5%
Materials
0%

Long book by quarter

$99.5M
Q1 2024
$110.6M
Q2 2024
$123.7M
Q3 2024
$125.3M
Q4 2024
$71.5M
Q1 2025
$91.6M
Q2 2025
$106.2M
Q3 2025
$110.7M
Q4 2025
$188.8M
Q1 2026

What does Wasserstein Management, own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
CLMT CALUMET INCEnergy4.6M$164.2M87.0%-17.9%
WULF TERAWULF INCFinancials1.1M$15.2M8.1%New
AEVA AEVA TECHNOLOGIES INCIndustrials700.2K$9.2M4.9%New
PCT PURECYCLE TECHNOLOGIES INCMaterials30.7K$160K0.1%New

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 15, 20264$188.8M canonicalSEC ↗
Q4 202513F-HRFeb 17, 20261$110.7M canonicalSEC ↗
Q3 202513F-HRNov 14, 20251$106.2M canonicalSEC ↗
Q2 202513F-HRJul 21, 20251$91.6M canonicalSEC ↗
Q1 202513F-HRMay 2, 20251$71.5M canonicalSEC ↗
Q4 202413F-HRJan 29, 20251$125.3M canonicalSEC ↗
Q3 202413F-HRNov 12, 20241$123.7M canonicalSEC ↗
Q2 202413F-HRAug 2, 20241$110.6M canonicalSEC ↗
Q1 202413F-HRMay 15, 20241$99.5M canonicalSEC ↗