Marcus Chen
Senior Market Analyst
Senior Market Analyst at 13F Insight. Covers institutional portfolio strategy, 13F filings, and smart money trends.
A note from Marcus
Hi, I'm Marcus. I spent six years on the buy side staring at 13F filings for a hedge fund, and the thing that bothered me most wasn't the work — it was knowing that the average investor never gets to see what I was looking at, even though it's all public.
That's why I'm here. Every research piece you'll see under my name comes from real SEC data, run through real institutional logic, and translated into something you can actually act on. I write long when the data deserves it and short when it doesn't.
If you ever spot a number that looks off, email me. I'd rather be corrected than wrong.
Articles by Marcus Chen (542)
- Research
Diesslin Group, Inc.'s $251.64M 2025Q4 Filing Prints a 66.61% Top-5 Cluster
Diesslin Group, Inc. reported $251.64M for 2025Q4, with BRK/B at 23.93% and top-5 concentration at 66.61%.
- Research
BANK OF MONTREAL /CAN/'s $288.73B 2025Q4 Build Opened 78 New Positions
BANK OF MONTREAL /CAN/ reported $288.73B for 2025Q4, with NVDA at 5.02% and top-5 concentration at 18.22%.
- Research
ENVESTNET ASSET MANAGEMENT INC's $337.09B 2025Q4 Build Opened 33 New Positions
ENVESTNET ASSET MANAGEMENT INC reported $337.09B for 2025Q4, with IVV at 6.17% and top-5 concentration at 14.27%.
- Research
Inside National Pension Service's $135.07B 2025Q4 Portfolio: What the Latest Filing Says
National Pension Service reported $135.07B for 2025Q4, with NVDA at 6.92% and top-5 concentration at 24.48%.
- Research
FIRST TRUST ADVISORS LP's $137.60B 2025Q4 Build Opened 51 New Positions
FIRST TRUST ADVISORS LP reported $137.60B for 2025Q4, with CSCO at 1.72% and top-5 concentration at 7.55%.
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Creative Planning's $139.71B 2025Q4 Build Opened 38 New Positions
Creative Planning reported $139.71B for 2025Q4, with IVV at 11.94% and top-5 concentration at 32.71%.
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Inside Mitsubishi UFJ Asset Management Co., Ltd.'s $147.50B 2025Q4 Portfolio: What the Latest Filing Says
Mitsubishi UFJ Asset Management Co., Ltd. reported $147.50B for 2025Q4, with NVDA at 6.85% and top-5 concentration at 25.68%.
- Research
Inside JONES FINANCIAL COMPANIES LLLP's $164.02B 2025Q4 Portfolio: What the Latest Filing Says
JONES FINANCIAL COMPANIES LLLP reported $164.02B for 2025Q4, with VUG at 11.91% and top-5 concentration at 40.43%.
- Research
Pantera Capital Partners LP's $164.21M 2025Q4 Filing Is a 15-Position Bet: FIGR at 38.37%
Pantera Capital Partners LP reported $164.21M for 2025Q4, with FIGR at 38.37% and top-5 concentration at 89.93%.
- Research
Inside Sumitomo Mitsui Trust Group, Inc.'s $170.27B 2025Q4 Portfolio: What the Latest Filing Says
Sumitomo Mitsui Trust Group, Inc. reported $170.27B for 2025Q4, with NVDA at 7.17% and top-5 concentration at 24.74%.
- Research
PRINCIPAL FINANCIAL GROUP INC's $195.86B 2025Q4 Build Opened 40 New Positions
PRINCIPAL FINANCIAL GROUP INC reported $195.86B for 2025Q4, with NVDA at 4.11% and top-5 concentration at 16.05%.
- Research
THRYVE WEALTH MANAGEMENT LLC's $202.09M 2025Q4 Build Opened 94 New Positions
THRYVE WEALTH MANAGEMENT LLC reported $202.09M for 2025Q4, with QQQ at 20.05% and top-5 concentration at 45.44%.
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Cosmic Management, LLC's $324.63M 2025Q4 Filing Is a 4-Position Bet: FIG at 46.68%
Cosmic Management, LLC reported $324.63M for 2025Q4, with FIG at 46.68% and top-5 concentration at 100.01%.
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Dodge & Cox's $185.26B Q4 Portfolio: Value Tilts Stay Intact While Mega-Cap Tech Remains Secondary
Dodge & Cox closed 2025Q4 with $185.26B across 222 positions and a 74.75 WhaleScore, pairing steady scale with broad value-style exposure across financials, healthcare, and energy.
- Research
Swiss National Bank's $168.01B Q4 Book Stays Anchored to U.S. Mega-Cap Tech
Swiss National Bank reported $168.01B in Q4 2025 with NVDA, AAPL, and MSFT as the top three holdings. The filing shows persistent U.S. mega-cap concentration despite slight quarter-over-quarter AUM cooling.
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American Century's $198.97B Q4 Book: NVIDIA Weight Climbs, But Risk Stays Managed
AMERICAN CENTURY COMPANIES INC reported $198.97B in Q4 2025, led by an $11.81B NVIDIA stake, while keeping top-10 concentration at 33.4% across a 500-position portfolio.
- Research
PRIMECAP's $132.11B Q4 Setup: Healthcare-Semiconductor Barbell Gets Heavier
PRIMECAP reported $132.11B in Q4 2025 with Eli Lilly and Micron alone at 12.9% combined, signaling a barbell between healthcare defensiveness and semiconductor cyclicality.
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Victory Capital's $177.20B Q4 2025 Filing Extends a 58.7% Mid-Year AUM Step-Change
Victory Capital ended Q4 2025 at $177.20B after a +58.7% jump in Q2 and continued gains through year-end. The portfolio pairs mega-cap tech leadership with broad institutional sizing discipline.
- Research
Ovata's $823M Q4 2025 13F: Spotify, Ryanair, and TSM Define a Concentrated Global Book
Ovata used a concentrated, international mix led by Spotify, Ryanair, TSM, and Bitcoin exposure, with converts layered in around the edges.
- Research
Mariner's $1.7B Q4 2025 13F: 65 New Positions and a Mega-Cap Rebuild
Mariner rebuilt around Microsoft, Lam Research, Alphabet, Costco, and Bitcoin exposure, with 65 new positions in a single quarter.