What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001536336
Total reported value
$561.4M
$561.4M
10 檔
28.6%
At the close of Q1 2026, Ma Investment Partnership, LP disclosed equity holdings valued at approximately $561.4M, spread across 10 reported holdings.
In Q1 2026, Ma Investment Partnership, LP displayed an active expansion posture, initiating 2 new positions and adding to 1 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | SNDK | Sandisk CORP | Stock-Tech | 30.55% | +9.95% | — | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 16.77% | -2.51% | — | |
| 3 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 12.05% | -6.09% | — | |
| 4 | AMD | Advanced Micro Devices | Stock-Tech | 9.78% | +0.57% | -33.33% | |
| 5 | VIAV | Viavi Solutions Inc | Stock-Tech | 8.00% | -3.75% | +150.00% | |
| 6 | BE | Bloom Energy Corp- A | Stock-Industrials | 6.51% | -1.12% | — | |
| 7 | RDDT | Reddit Inc-cl A | Stock-Comm Services | 6.47% | -0.29% | — | |
| 8 | BABA | Alibaba Group Holding-sp Adr | Stock-Consumer Disc | 6.03% | -4.32% | -33.33% | |
| 9 | LMND | Lemonade Inc | Stock-Financials | 3.01% | -1.85% | — | |
| 10 | SOGP | Sound Group Inc | Stock-Other | 0.81% | -0.61% | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | SNDK | Sandisk CORP | +9.8% | — | Unchanged |
| 2 | VIAV | Viavi Solutions Inc | +4.9% | +150.00% | Add |
| 3 | SOGP | Sound Group Inc | -0.2% | — | Unchanged |
| 4 | BE | Bloom Energy Corp- A | -1.1% | — | Unchanged |
| 5 | VRT | Vertiv Holdings Co-a | -2.1% | — | Unchanged |
| 6 | LMND | Lemonade Inc | -3.2% | — | Unchanged |
| 7 | BABA | Alibaba Group Holding-sp Adr | -13.2% | -33.33% | Trim |
| 8 | AMD | Advanced Micro Devices | -18.3% | -33.33% | Trim |
| 9 | NVDA | Nvidia CORP | — | NEW | New buy |
| 10 | RDDT | Reddit Inc-cl A | — | NEW | New buy |
According to official SEC Form 13F filings, Ma Investment Partnership, LP reported a total U.S. public equity portfolio value of $561.4M across 10 disclosed positions in Q1 2026.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including SNDK, NVDA, VRT) accounted for 28.6% of total reported equity market value during Q1 2026.
Top New Position Initiated
NVDA
市值: $34.9M
Top Position Liquidated / Trimmed
AMD
前期市值: $32.1M
During Q1 2026, Ma Investment Partnership, LP's top holdings by market value included SNDK (30.6%)、NVDA (16.8%)、VRT (12.1%). The largest single position, SNDK, represented 30.6% of total portfolio value.
In Q1 2026, Ma Investment Partnership, LP made 5 total portfolio adjustments, initiating 2 new buys, adding to 1 positions, trimming 2 holdings, and fully liquidating 0 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.