MKTX
MARKETAXESS HOLDINGS INC
Latest close $162.44 as of Aug 5, 2026
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
Significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro.
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Beneficial ownership filing history
Showing 3 of 8 parsed filing(s) · 5 older require more history access| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| Fidelity / FMR CIK0000315066 | Mar 31, 2026 observed May 6, 2026 filed · 36d Schedule 13G amendment | Earliest Schedule 13G amendment found | 1.5K | 12.00% | $164.98 | $148.84 | $162.44 |
| BlackRock CIK0002012383 | Jan 31, 2026 observed Feb 6, 2026 filed · 6d Schedule 13G amendment | Reported accumulation | 4.0M +353.9K | 12.00% 0.00 pts | $169.23 | $162.33 | $162.44 |
| BlackRock CIK0002012383 | Dec 31, 2025 observed Jan 21, 2026 filed · 21d Initial Schedule 13G | Initial Schedule 13G | 3.7M +2.1M | 12.00% 0.00 pts | $181.25 | $171.93 | $162.44 |