RDST Capital LLC 13F: Quarter-over-Quarter Portfolio Changes
RDST Capital LLC reported a disclosed portfolio value of approximately $1.0 billion in its latest SEC Form 13F-HR filing for Q1 2026, down 2.2% quarter on quarter. Over the quarter, the fund initiated 2 new positions, bought more shares in 12 holdings, trimmed 6 holdings, and exited 1 position.
RDST Capital LLC's top buy was a new stake in Ares Management Corporation (ARES) , equal to 3.4% of the disclosed portfolio. Its top sell was Entegris (ENTG) . The fund sold 67.7% of its previously reported shares, reducing the position's portfolio weight by 4.7 percentage points.
New PositionsQ1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| ARES MANAGEMENT CORPORATION | ARES | 3.4% | Holders → |
| SERVICENOW | NOW | 0.8% | Holders → |
Top BuysQ1 2026
Showing the top 10 buys among 12 existing positions where the fund bought more shares in Q1 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| DOORDASH INC | DASH | +2.5% | +176.7% | Holders → |
| MARVELL TECHNOLOGY INC | MRVL | +3.7% | +136.4% | History → |
| TAIWAN SEMIC-ADR | TSM | +3.4% | +111.4% | History → |
| COUPANG INC | CPNG | +1.8% | +69.3% | History → |
| DATADOG INC | DDOG | +2.0% | +60.4% | History → |
| META PLATFORMS INC | META | +1.6% | +59.7% | History → |
| CARVANA CO | CVNA | +0.4% | +43.0% | Holders → |
| BLUE OWL CAPITAL INC | OWL | +-2.1% | +22.1% | History → |
| JAMES HARDIE INDS PLC | JHX | +0.6% | +20.2% | History → |
| APOLLO GLOBAL MGMT INC | APO | +-0.2% | +17.2% | Holders → |
Top SellsQ1 2026
The fund's top sells among positions it retained in Q1 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| ENTEGRIS | ENTG | -4.7% | 67.7% | Holders → |
| FLOOR & DECOR HLDGS INC | FND | -2.7% | 42.6% | Holders → |
| UNION PACIFIC | UNP | -2.3% | 30.6% | History → |
| HUBSPOT INC | HUBS | -2.6% | 10.5% | Holders → |
| MARTIN MARIETTA MATLS INC | MLM | -0.6% | 6.3% | Holders → |
| MARKETAXESS HLDGS INC | MKTX | -0.6% | 5.0% | Holders → |
Full ExitsQ1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| DUCOMMUN INC DEL | DCO | 3.5% |
Net Portfolio Value ChangeQ1 2026
- $1.1BPrior quarter
- $1.0BCurrent quarter
- $-0.0BNet delta
- -2.2%% change
Methodology & FAQ
How RDST Capital LLC Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for RDST Capital LLC: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description — including how confidential treatment filings are handled — is documented in the Methodology.
What stocks did RDST Capital LLC buy in Q1 2026?
In Q1 2026, RDST Capital LLC initiated 2 new positions (ARES MANAGEMENT CORPORATION (ARES), SERVICENOW (NOW)); bought more shares of DOORDASH INC (DASH), MARVELL TECHNOLOGY INC (MRVL), TAIWAN SEMIC-ADR (TSM), COUPANG INC (CPNG), DATADOG INC (DDOG) — the largest 5 of 12 adds.
What stocks did RDST Capital LLC sell in Q1 2026?
In Q1 2026, RDST Capital LLC fully sold 1 position (DUCOMMUN INC DEL (DCO)); reduced holdings in ENTEGRIS (ENTG), FLOOR & DECOR HLDGS INC (FND), UNION PACIFIC (UNP), HUBSPOT INC (HUBS), MARTIN MARIETTA MATLS INC (MLM) — the largest 5 of 6 reductions.
Which positions did RDST Capital LLC initiate in Q1 2026?
RDST Capital LLC established 2 new positions in Q1 2026: ARES MANAGEMENT CORPORATION (ARES, 3.4%), SERVICENOW (NOW, 0.8%).
Which existing positions saw the largest allocation increases for RDST Capital LLC in Q1 2026?
Of 12 existing positions with share-count increases in Q1 2026, the largest were: DOORDASH INC (DASH, +2.5% weight, +176.7% shares), MARVELL TECHNOLOGY INC (MRVL, +3.7% weight, +136.4% shares), TAIWAN SEMIC-ADR (TSM, +3.4% weight, +111.4% shares), COUPANG INC (CPNG, +1.8% weight, +69.3% shares), DATADOG INC (DDOG, +2.0% weight, +60.4% shares), META PLATFORMS INC (META, +1.6% weight, +59.7% shares), CARVANA CO (CVNA, +0.4% weight, +43.0% shares), BLUE OWL CAPITAL INC (OWL, +-2.1% weight, +22.1% shares), JAMES HARDIE INDS PLC (JHX, +0.6% weight, +20.2% shares), APOLLO GLOBAL MGMT INC (APO, +-0.2% weight, +17.2% shares).
Which positions did RDST Capital LLC fully exit in Q1 2026?
RDST Capital LLC fully exited 1 position in Q1 2026: DUCOMMUN INC DEL (DCO, last-reported weight 3.5%).
Which existing positions saw the largest allocation reductions for RDST Capital LLC in Q1 2026?
Of 6 existing positions with share-count reductions in Q1 2026, the largest were: ENTEGRIS (ENTG, -4.7% weight, -67.7% shares), FLOOR & DECOR HLDGS INC (FND, -2.7% weight, -42.6% shares), UNION PACIFIC (UNP, -2.3% weight, -30.6% shares), HUBSPOT INC (HUBS, -2.6% weight, -10.5% shares), MARTIN MARIETTA MATLS INC (MLM, -0.6% weight, -6.3% shares), MARKETAXESS HLDGS INC (MKTX, -0.6% weight, -5.0% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.