CTMX β€” Cytomx Therapeutics Inc

Ownership history in Vivo Capital, LLC  Β·  3 quarters on record

AI Ownership Summary

Vivo Capital, LLC reported Cytomx Therapeutics Inc (CTMX) in 3 quarterly 13F filings from 2025 Q2 through 2025 Q4. Peak portfolio weight reached 1.34% in 2025 Q2. The latest visible filing shows CTMX at 0.79% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this CTMX ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was Vivo Capital, LLC's position in Cytomx Therapeutics Inc, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

CTMX was reported at 0.79% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.34% in 2025 Q2

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2025 Q2 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

How Vivo Capital, LLC held CTMX β€” position size vs. price
% of Fund (quarterly)    CTMX price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 3 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 UNCHANGED 2,884,615 β€” 0% 0.79% $12.3M 2026-02-14 (Est.) $5.32
2025 Q3 REDUCED 2,884,615 -2,884,615 -50.0% 0.74% $9.2M 2025-11-14 $3.88
2025 Q2 INITIATED 5,769,230 β€” β€” 1.34% $13.1M 2025-08-14 $1.76

FAQ About Vivo Capital, LLC and CTMX

These are the practical questions this page is built to answer before you even open the full history table.

How long has Vivo Capital, LLC reported owning CTMX?

Vivo Capital, LLC reported CTMX across 3 quarterly 13F filings, from 2025 Q2 through 2025 Q4.

What was the largest reported CTMX position in Vivo Capital, LLC's portfolio?

The largest reported portfolio weight for CTMX was 1.34% in 2025 Q2.

What is the latest reported CTMX position on this page?

The most recent filing on this page is 2025 Q4, when Vivo Capital, LLC reported 2,884,615 shares, equal to 0.79% of portfolio, with an estimated market value of $12.3M.

What does the chart on this CTMX ownership page compare?

The chart compares Vivo Capital, LLC's quarterly CTMX portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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