Mark O'Neill Auction Prices and Value Guide

Mark O'Neill auction prices are tracked in Appraisily's artist market index, with source-directory coverage of 631 records. Use this page to review sold-lot activity, market context, and valuation factors before requesting a formal appraisal.

Mark O'Neill auction prices: quick answer

Mark O'Neill auction prices depend on medium, size, date, condition, provenance, edition details, attribution confidence, and recent comparable auction sales.

Artist
Mark O'Neill
Source records
631
Market update
2026-02-16

Mark O'Neill market snapshot

Mark O'Neill shows very deep auction liquidity with 504 tracked lots. Median realized sale is around $3,000. Category concentration is still broad or sparse. Last 12 months recorded 19 sales. Latest recorded sale: 2025-12-01.

Realized price distribution

  • Under $1,000 (7.1% · 25 sales)
  • $1,000 to $10,000 (87.4% · 306 sales)
  • $10,000+ (5.4% · 19 sales)
Median sale (last 12 months)
$2,150
Sales recorded (last 12 months)
19
Median shift vs prior year
0.0%
Latest recorded sale
2025-12-01

Artist context

About Mark O'Neill

Mark O'Neill is the name under which Appraisily has grouped public auction records, but the collected identity sources do not securely establish a matching artist biography. The Wikidata, VIAF, and French Wikipedia records in the source pack point instead to a Canadian administrator born in 1963, creating a material namesake risk. Those authority identifiers therefore should not be attached to the auction-record subject as sameAs links. Available market data spans fine art and paintings, works on paper and prints, sculpture and mixed media, and decorative art and editions, but these broad classifications do not prove a single maker, movement, nationality, or career chronology. Collectors may encounter the name across varied lot descriptions, and each object should be checked against its catalogue attribution, signature or inscriptions, medium, date, provenance, and supporting references. Until an artist-specific museum, estate, gallery, catalogue, or authority source is found, this page should be treated as a market-name index rather than a resolved biographical entity.

Common works and media

The name-matched auction index includes broad categories covering paintings, works on paper and prints, sculpture and mixed media, decorative art, and editions. These categories describe the current record set, not a verified catalogue of one artist's work. Any submitted object should therefore be classified from its physical medium, construction, inscriptions, edition marks, dimensions, and documented attribution before comparisons are selected.

Market and appraisal context

Appraisily's current index reports 516 name-matched records, including 356 priced results across 2002–2026, but the unresolved identity makes aggregate figures especially sensitive to false matches. A useful appraisal should begin with comparable lots sharing the same object type, medium, dimensions, date, subject, condition, and attribution language. Signatures, inscriptions, edition details, provenance, exhibition history, restoration, and catalogue references may further affect comparability. Reported auction totals may also differ in their treatment of buyer's premiums and fees. The index's observed range should not be interpreted as a prediction for an individual object without confirming that the selected records concern the same artist.

Auction categories and appraisal factors

Common auction categories

  • Fine art and paintings
  • Works on paper and prints
  • Sculpture and mixed media
  • Decorative art and editions

Value drivers

  1. Medium, dimensions, date, and period attributed in the catalogue entry
  2. Condition, restoration history, and surface quality
  3. Signature, inscriptions, edition information, and attribution confidence
  4. Provenance, exhibition history, and catalogue references
  5. Comparable public auction results for works with similar characteristics
  6. Subject matter, rarity, and demonstrated market demand

Appraisal caveats

  • The auction index is based on name-matched public records and does not resolve the namesake conflict documented by the collected authority sources (https://appraisily.com/artist/mark-o-neill/).
  • Public auction records are starting points rather than final appraisals; private sales and incomplete auction feeds may not be represented (https://appraisily.com/artist/mark-o-neill/).
  • Condition, authentication, attribution changes, and differences in whether reported totals include fees can materially affect comparisons (https://appraisily.com/artist/mark-o-neill/).

Evidence

Sources for artist context

This source-grounded artist context is based on collected public records: low confidence, thin source quality.

Source-grounded artist Markdown

Data basis

This page is built from Appraisily's public auction market index. Private transactions, incomplete sale feeds, and attribution changes may not be fully represented.

LLM-readable Markdown summary for Mark O'Neill

LLM summary index · LLM full index

Artist value FAQ

How much is Mark O'Neill worth?

Comparable public auction sales are the best starting point, but final value depends on the specific artwork, condition, size, medium, provenance, and attribution confidence.

Can Appraisily value my Mark O'Neill artwork?

Yes. Appraisily can review photos, dimensions, signatures, condition, provenance, and comparable market data to prepare a current valuation.