Wasserstein Management, L.P. holds a concentrated book of 4 stocks worth $188.8M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Terawulf Inc and trimmed Calumet Inc. Their largest long position is Calumet Inc at 87% of the equity book.
Top-heavy: concentrated book
Excluding Calumet Inc (87% of the book), the rest is a concentrated book:
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
+1 sector below the cut, under 0.5% together
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
Other tracked managers holding the same core names as Wasserstein Management, L.P.
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Sylebra Capital LLC | 2 / 4 | $742.5M |
| Ardsley Advisory Partners LP | 2 / 4 | $27.2M |
| Shay Capital LLC | 2 / 4 | $25.0M |
| Diametric Capital, LP | 2 / 4 | $11.9M |
| Informed Momentum Co LLC | 2 / 4 | $10.4M |
| Stanley Druckenmiller | 2 / 4 | $42.4M |
| Summit Partners Public Asset Management, LLC | 2 / 4 | $40.3M |
| Dockside LLC | 2 / 4 | $2.4M |
Ranked by the share of each fund's own book sitting in the names it shares with Wasserstein Management, L.P.: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Calumet Inc COM | $164.2M | 4.57M | 87.0% | ▼−18% Reduced · −1.0M sh | |
| 2 | Terawulf Inc COM | $15.2M | 1.06M | 8.1% | ▲New New position | |
| 3 | Aeva Technologies Inc COM NEW | $9.2M | 700.2K | 4.9% | ▲New New position | |
| 4 | Purecycle Technologies Inc COM | $160K | 30.7K | 0.1% | ▲New New position |
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1751492/holdings"
Use Arkolith to show Wasserstein Management, L.P.'s latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.