GCM Grosvenor Holdings, LLC holds a concentrated book of 22 stocks worth $901.2M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Constellation Energy and trimmed Amazon.com Inc. Their largest long position is Karman Holdings Inc at 29% of the equity book.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
96% mapped to company sectors
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, no cost basis
Other tracked managers holding the same core names as GCM Grosvenor Holdings, LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| BlackRock, Inc. | 23 / 22 | $202.1B |
| JPMORGAN CHASE & CO | 23 / 22 | $54.4B |
| MORGAN STANLEY | 23 / 22 | $51.3B |
| ROYAL BANK OF CANADA | 23 / 22 | $13.9B |
| UBS Group AG | 23 / 22 | $13.5B |
| WELLS FARGO & COMPANY/MN | 23 / 22 | $10.8B |
| Rockefeller Capital Management L.P. | 23 / 22 | $1.9B |
| Cerity Partners LLC | 23 / 22 | $1.5B |
Ranked by the share of each fund's own book sitting in the names it shares with GCM Grosvenor Holdings, LLC: 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 | Karman Hldgs Inc COMMON STOCK | $265.7M | 3.32M | 29.5% | —Held | |
| 2 | Constellation Energy Corp COM | $245.2M | 878.0K | 27.2% | ▲New New position | |
| 3 | Maplebear Inc COM | $155.1M | 4.14M | 17.2% | —Held | |
| 4 | Shenandoah Telecommunication COM | $63.5M | 4.12M | 7.0% | ▲+0.3% Added · +11K sh | |
| 5 | Amazon Com Inc COM | $26.6M | 127.9K | 3.0% | ▼−27% Reduced · −47K sh | |
| 6 | FS Specialty Lending FD COM SH BEN INT | $18.1M | 1.45M | 2.0% | ▲+6.1% Added · +83K sh | |
| 7 | Blue Owl Technology Fin Corp COMMON STOCK | $17.5M | 1.41M | 1.9% | ▲+228% Added · +981K sh | |
| 8 | Clean Harbors Inc COM | $15.4M | 53.8K | 1.7% | ▼−27% Reduced · −20K sh | |
| 9 | Viking Holdings Ltd ORD SHS | $11.6M | 158.4K | 1.3% | ▼−27% Reduced · −58K sh | |
| 10 | Lineage Inc COM | $9.9M | 302.1K | 1.1% | —Held | |
| 11 | Taiwan Semiconductor Manufac SPONSORED ADS | $9.7M | 28.8K | 1.1% | ▼−27% Reduced · −11K sh | |
| 12 | Schwab Charles Corp COM | $9.6M | 101.8K | 1.1% | ▼−27% Reduced · −38K sh | |
| 13 | Natera Inc COM | $7.3M | 36.3K | 0.8% | ▼−27% Reduced · −13K sh | |
| 14 | Core & Main Inc CL A | $6.9M | 139.4K | 0.8% | ▼−27% Reduced · −51K sh | |
| 15 | Asbury Automotive Group Inc COM | $6.1M | 31.0K | 0.7% | ▼−27% Reduced · −11K sh | |
| 16 | Transunion COM | $6.1M | 87.5K | 0.7% | ▼−27% Reduced · −32K sh | |
| 17 | Nu Hldgs Ltd ORD SHS CL A | $5.8M | 403.4K | 0.6% | ▼−27% Reduced · −149K sh | |
| 18 | Aercap Holdings NV SHS | $5.4M | 39.2K | 0.6% | ▼−27% Reduced · −14K sh | |
| 19 | Elevance Health Inc Formerly COM | $5.0M | 17.0K | 0.6% | ▼−27% Reduced · −6K sh | |
| 20 | HDFC Bank Ltd SPONSORED ADS | $5.0M | 199.4K | 0.6% | ▼−27% Reduced · −73K sh | |
| 21 | Louisiana Pac Corp COM | $3.3M | 46.0K | 0.4% | ▼−27% Reduced · −17K sh | |
| 22 | Brightstar Lottery PLC SHS USD | $2.4M | 189.9K | 0.3% | ▼−27% Reduced · −70K sh |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
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/1939480/holdings"
Use Arkolith to show GCM Grosvenor Holdings, LLC's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
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.