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 Q1 2026 13F filing, Gavin Baker (managing Atreides Management) reported a public portfolio value of $5.0B with 54 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 ALAB. The top recent sell was P.
Open interactive portfolioLatest 13F portfolio changes
Gavin Baker holdings 13F summary: the latest Atreides Management portfolio changes show top holdings including ASTERA LABS, UNITY SOFTWARE, CIENA, MICRON TECHNOLOGY, and NVIDIA, reported top buys such as ASTERA LABS, UNITY SOFTWARE, MICRON TECHNOLOGY, and Amazon, and top sells or reductions such as PURE STORAGE, CIENA, NVIDIA, and LUMENTUM HLDGS.
Latest filing metadata: quarter Q1 2026; report date 2026-03-31; filing date 2026-05-18; disclosure source SEC 13F.
Gavin Baker 13F portfolio and latest holdings overview
Gavin Baker's Q1 2026 13F holdings show Atreides Management reporting 54 positions with a disclosed portfolio value of $5.0B. For readers searching Gavin Baker 13F holdings, Gavin Baker portfolio, Atreides Management holdings, or latest 13F changes, the latest top holdings include ASTERA LABS, UNITY SOFTWARE, CIENA, MICRON TECHNOLOGY, and NVIDIA.
The three largest reported positions add up to roughly 22.0%, which helps readers judge portfolio concentration rather than just headline AUM. The largest reported sector exposure is Information Technology at 51.5% 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 ASTERA LABS, UNITY SOFTWARE, MICRON TECHNOLOGY, Amazon, and Alphabet and reported reductions or exits such as PURE STORAGE, CIENA, NVIDIA, LUMENTUM HLDGS, and COHERENT. Those changes should be read as historical disclosure signals, not as real-time trade alerts.
The filing metadata lists report date 2026-03-31, filing date 2026-05-18, SEC accession 0001777813-26-000006. 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 33.6% of disclosed value; the largest sector exposure is Information Technology at 51.5%; reported buy and sell activity implies roughly 121.2% turnover this period; cost-basis P&L across 50 tracked positions averages 479.3% (30/39 currently in profit).
Top reported holdings
| Holding | Reported value | Weight | Quarter change |
|---|---|---|---|
| ALAB whale holders ASTERA LABS INC | $368.9M | 9.0% | Increased |
| U whale holders UNITY SOFTWARE INC | $271.7M | 6.6% | Increased |
| CIEN whale holders CIENA CORP | $262.8M | 6.4% | Reduced |
| MU whale holders MICRON TECHNOLOGY INC | $256.9M | 6.3% | Increased |
| NVDA whale holders NVIDIA CORPORATION | $217.8M | 5.3% | Reduced |
| AMZN whale holders AMAZON COM INC | $198.6M | 4.8% | Increased |
| LITE whale holders LUMENTUM HLDGS INC | $187.9M | 4.6% | Reduced |
| GOOGL whale holders ALPHABET INC | $159.6M | 3.9% | Increased |
| COHR whale holders COHERENT CORP | $150.3M | 3.7% | Reduced |
| SATS whale holders ECHOSTAR CORP | $117.1M | 2.9% | Increased |
Top buys
- ALAB whale holders — ASTERA LABS INC ($368.9M)
- U whale holders — UNITY SOFTWARE INC ($271.7M)
- MU whale holders — MICRON TECHNOLOGY INC ($256.9M)
- AMZN whale holders — AMAZON COM INC ($198.6M)
- GOOGL whale holders — ALPHABET INC ($159.6M)
- SATS whale holders — ECHOSTAR CORP ($117.1M)
Top sells
- P whale holders — PURE STORAGE INC ($279.9M)
- CIEN whale holders — CIENA CORP ($262.8M)
- NVDA whale holders — NVIDIA CORPORATION ($217.8M)
- LITE whale holders — LUMENTUM HLDGS INC ($187.9M)
- COHR whale holders — COHERENT CORP ($150.3M)
- GTLB whale holders — GITLAB INC ($119.2M)
Allocation
- Information Technology: 51.5%
- Other: 25.9%
- Consumer Discretionary: 8.8%
- Communication Services: 6.7%
- Financials: 3.2%
- Utilities: 1.9%
- Industrials: 1.9%
Data notes
Report date: 2026-03-31
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 Q1 2026 13F profile for Gavin Baker and Atreides Management shows 54 reported positions, $5.0B in disclosed portfolio value, and top holdings including ASTERA LABS, UNITY SOFTWARE, CIENA, MICRON TECHNOLOGY, and NVIDIA.
What is Gavin Baker buying? Latest 13F changes
The latest tracked change data for Gavin Baker highlights reported buys such as ASTERA LABS, UNITY SOFTWARE, MICRON TECHNOLOGY, and Amazon and reported sells or reductions such as PURE STORAGE, CIENA, NVIDIA, 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.