Gavin Baker Holdings 13F: Latest Atreides Management Portfolio Changes
Atreides Management. Growth/technology hedge fund (~$5.5B AUM). Former Fidelity portfolio manager.
As of the latest Q2 2026 13F filing, Gavin Baker (managing Atreides Management) reported a public portfolio value of $14.3B with 49 positions. This page tracks latest holdings, latest 13F changes, top buys, top sells, and top holdings from the public filing. The top recent buy was SPCX. The top recent sell was MU.
Open interactive portfolioLatest 13F portfolio changes
Gavin Baker holdings 13F summary: the latest Atreides Management portfolio changes show top holdings including SPACE EXPLORATION TECHN, MICRON TECHNOLOGY, CEREBRAS SYSTEMS, ASTERA LABS, and CIENA, reported top buys such as SPACE EXPLORATION TECHN, CEREBRAS SYSTEMS, CIENA, and CREDO TECHNOLOGY GROUP HOLDI, and top sells or reductions such as MICRON TECHNOLOGY, ASTERA LABS, UNITY SOFTWARE, and LUMENTUM HLDGS.
Latest filing metadata: quarter Q2 2026; report date 2026-06-30; filing date 2026-08-14; disclosure source SEC 13F.
Gavin Baker 13F portfolio and latest holdings overview
Gavin Baker's Q2 2026 13F holdings show Atreides Management reporting 49 positions with a disclosed portfolio value of $14.3B. For readers searching Gavin Baker 13F holdings, Gavin Baker portfolio, Atreides Management holdings, or latest 13F changes, the latest top holdings include SPACE EXPLORATION TECHN, MICRON TECHNOLOGY, CEREBRAS SYSTEMS, ASTERA LABS, and CIENA.
The three largest reported positions add up to roughly 55.4%, which helps readers judge portfolio concentration rather than just headline AUM. The largest reported sector exposure is Energy at 41.9% of the disclosed portfolio. This makes the page useful for comparing the manager's actual disclosed exposure with market narratives around the same names.
The latest change data highlights reported buys such as SPACE EXPLORATION TECHN, CEREBRAS SYSTEMS, CIENA, CREDO TECHNOLOGY GROUP HOLDI, and PALO ALTO NETWORKS and reported reductions or exits such as MICRON TECHNOLOGY, ASTERA LABS, UNITY SOFTWARE, LUMENTUM HLDGS, and Alphabet. Those changes should be read as historical disclosure signals, not as real-time trade alerts.
The filing metadata lists report date 2026-06-30, filing date 2026-08-14, SEC accession 0001777813-26-000009. SEC 13F reports are normally published up to 45 days after quarter end, so the data is best used to understand institutional positioning after the fact rather than to infer today's exact portfolio.
Gavin Baker portfolio analytics
the top five positions account for 63.7% of disclosed value; the largest sector exposure is Energy at 41.9%; reported buy and sell activity implies roughly 108.9% turnover this period; cost-basis P&L across 46 tracked positions averages 228.7% (30/36 currently in profit).
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| SPCX whale holders SPACE EXPLORATION TECHN CORP | $4.67B | 41.9% | New |
| MU whale holders MICRON TECHNOLOGY INC | $821.1M | 7.4% | Reduced |
| CBRS whale holders CEREBRAS SYSTEMS INC | $687.3M | 6.2% | New |
| ALAB whale holders ASTERA LABS INC | $587.7M | 5.3% | Reduced |
| CIEN whale holders CIENA CORP | $337.8M | 3.0% | Increased |
| CRDO whale holders CREDO TECHNOLOGY GROUP HOLDI | $307.1M | 2.8% | Increased |
| PANW whale holders PALO ALTO NETWORKS INC | $299.1M | 2.7% | Increased |
| U whale holders UNITY SOFTWARE INC | $292.8M | 2.6% | Reduced |
| COHR whale holders COHERENT CORP | $253.3M | 2.3% | Increased |
| NVDA whale holders NVIDIA CORPORATION | $250.0M | 2.2% | Increased |
Top buys
- SPCX whale holders — SPACE EXPLORATION TECHN CORP ($4.67B)
- CBRS whale holders — CEREBRAS SYSTEMS INC ($687.3M)
- CIEN whale holders — CIENA CORP ($337.8M)
- CRDO whale holders — CREDO TECHNOLOGY GROUP HOLDI ($307.1M)
- PANW whale holders — PALO ALTO NETWORKS INC ($299.1M)
- COHR whale holders — COHERENT CORP ($253.3M)
Top sells
- MU whale holders — MICRON TECHNOLOGY INC ($821.1M)
- ALAB whale holders — ASTERA LABS INC ($587.7M)
- U whale holders — UNITY SOFTWARE INC ($292.8M)
- LITE whale holders — LUMENTUM HLDGS INC ($187.9M)
- GOOGL whale holders — ALPHABET INC ($174.5M)
- TWLO whale holders — TWILIO INC ($148.6M)
Allocation
- Energy: 41.9%
- Information Technology: 37.1%
- Other: 12.8%
- Communication Services: 3.6%
- Consumer Discretionary: 3.6%
- Financials: 0.4%
- Industrials: 0.3%
- Health Care: 0.2%
Data notes
Report date: 2026-06-30
Disclosure source: SEC 13F
SEC 13F filings are delayed public disclosures and do not include every asset class, short positions, or real-time trades.
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Frequently asked questions
Gavin Baker 13F Holdings
The Q2 2026 13F profile for Gavin Baker and Atreides Management shows 49 reported positions, $14.3B in disclosed portfolio value, and top holdings including SPACE EXPLORATION TECHN, MICRON TECHNOLOGY, CEREBRAS SYSTEMS, ASTERA LABS, and CIENA.
What is Gavin Baker buying? Latest 13F changes
The latest tracked change data for Gavin Baker highlights reported buys such as SPACE EXPLORATION TECHN, CEREBRAS SYSTEMS, CIENA, and CREDO TECHNOLOGY GROUP HOLDI and reported sells or reductions such as MICRON TECHNOLOGY, ASTERA LABS, UNITY SOFTWARE, and LUMENTUM HLDGS.
Atreides Management top holdings
Atreides Management top holdings are summarized from public disclosures with reported values, weights, portfolio concentration, top buys, top sells, and filing metadata where available.
Gavin Baker buys and sells
Use the top buys and top sells sections above to compare Gavin Baker's reported additions, reductions, exits, and latest portfolio activity against other tracked investors.
How delayed is Gavin Baker's 13F data?
SEC Form 13F requires institutional investment managers with $100M+ in US equities to disclose their holdings quarterly. Read our comprehensive 13F guide for timing, coverage, and limitations. Read the Whale Analyzer 13F guide.