What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
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CIK: 0000310158
Total reported value
$526.4M
$526.4M
13 檔
40.9%
According to the latest 13F quarterly dataset, Merck & Co., Inc. managed an equity portfolio of $526.4M at the end of Q3 2025, spanning 13 distinct U.S. exchange-listed positions.
In Q3 2025, Merck & Co., Inc. displayed an active expansion posture, initiating 1 new positions and adding to 0 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | PSNL | Personalis Inc | Stock-Other | 40.16% | +10.15% | — | |
| 2 | MRNA | Moderna Inc | Stock-Healthcare | 26.15% | -2.85% | — | |
| 3 | KYMR | Kymera Therapeutics Inc | Stock-Other | 19.17% | -1.58% | — | |
| 4 | ALEC | Alector Inc | Stock-Other | 4.60% | -0.83% | — | |
| 5 | ✓ | Stock-Other | 4.43% | -6.28% | EXIT | ||
| 6 | EVAXUSD | Evaxion Biotech A/s | Stock-Other | 2.00% | -1.29% | EXIT | |
| 7 | STRO | Sutro Biopharma, Inc. | Stock-Other | 1.04% | -1.94% | EXIT | |
| 8 | VRDN | Viridian Therapeutics Inc | Stock-Other | 0.88% | -0.19% | — | |
| 9 | ✓ | Lava Therapeutics NV | Stock-Other | 0.79% | — | — | |
| 10 | ✓ | Xilio Therapeutics Inc | Stock-Other | 0.55% | — | — | |
| 11 | CARM | Carisma Therapeutics Inc | Stock-Other | 0.18% | -0.01% | EXIT | |
| 12 | NEUP | Neuphoria Therapeutics Inc | Stock-Other | 0.05% | — | — | |
| 13 | HURA | Tuhura Biosciences Inc | Stock-Other | 0.02% | — | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | PSNL | Personalis Inc | +10.2% | — | Unchanged |
| 2 | KYMR | Kymera Therapeutics Inc | +6.3% | — | Unchanged |
| 3 | ALEC | Alector Inc | +2% | — | Unchanged |
| 4 | EVAXUSD | Evaxion Biotech A/s | +0.6% | — | Unchanged |
| 5 | VRDN | Viridian Therapeutics Inc | +0.1% | — | Unchanged |
| 6 | NEUP | Neuphoria Therapeutics Inc | 0% | — | Unchanged |
| 7 | STRO | Sutro Biopharma, Inc. | 0% | — | Unchanged |
| 8 | ✓ | Lava Therapeutics NV | -0.1% | — | Unchanged |
| 9 | ✓ | Xilio Therapeutics Inc | -0.1% | — | Unchanged |
| 10 | CARM | Carisma Therapeutics Inc | -0.1% | — | Unchanged |
| 11 | ✓ | -5.1% | — | Unchanged | |
| 12 | MRNA | Moderna Inc | -13.7% | — | Unchanged |
| 13 | HURA | Tuhura Biosciences Inc | — | NEW | New buy |
According to official SEC Form 13F filings, Merck & Co., Inc. reported a total U.S. public equity portfolio value of $526.4M across 13 disclosed positions in Q3 2025.
During Q3 2025, Merck & Co., Inc.'s top holdings by market value included PSNL (40.2%)、MRNA (26.1%)、KYMR (19.2%). The largest single position, PSNL, represented 40.2% of total portfolio value.
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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 PSNL, MRNA, KYMR) accounted for 40.9% of total reported equity market value during Q3 2025.
Top New Position Initiated
HURA
市值: $34.6K
In Q3 2025, Merck & Co., Inc. made 1 total portfolio adjustments, initiating 1 new buys, adding to 0 positions, trimming 0 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.
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