Keith Sonnier Auction Prices and Value Guide
Keith Sonnier auction prices are tracked in Appraisily's artist market index, with source-directory coverage of 170 records. Use this page to review sold-lot activity, market context, and valuation factors before requesting a formal appraisal.
Keith Sonnier auction prices: quick answer
Keith Sonnier auction prices depend on medium, size, date, condition, provenance, edition details, attribution confidence, and recent comparable auction sales.
- Artist
- Keith Sonnier
- Source records
- 170
- Market update
- 2026-02-16
Keith Sonnier market snapshot
Keith Sonnier shows solid auction liquidity with 102 tracked lots. Median realized sale is around $1,020. Category concentration is still broad or sparse. Last 12 months recorded 8 sales. Latest recorded sale: 2025-11-27.
Realized price distribution
- Under $1,000 (48.3% · 29 sales)
- $1,000 to $10,000 (35.0% · 21 sales)
- $10,000+ (16.7% · 10 sales)
- Median sale (last 12 months)
- $1,100
- Sales recorded (last 12 months)
- 8
- Median shift vs prior year
- +37.5%
- Latest recorded sale
- 2025-11-27
Artist context
About Keith Sonnier
Born
1941
Died
2020
Nationality
American
Keith Sonnier (1941–2020) was an American visual artist associated with postminimalist sculpture, Process Art, and early experiments with light as a sculptural material. During the 1960s, he was among the artists incorporating neon and unconventional, sometimes ephemeral materials into sculpture. His practice also extended to performance and video, connecting his work with several strands of late-twentieth-century American art. Collectors most often encounter his name in relation to light-based sculpture and installation, where illumination and material construction are central to the work’s identity. Drawings and prints may also appear, although the collected evidence provides less detail about those categories. Stable museum and authority profiles—including Wikidata, Tate, MoMA, Getty ULAN, VIAF, the Library of Congress, and the National Gallery of Art—help distinguish Sonnier from similarly named people and connect records across collections. Detailed movement and medium descriptions remain conservative because the supplied institutional excerpts are limited.
PostminimalismProcess ArtLight and neon sculptureSculpture incorporating ephemeral materialsVideo artPerformance art
Common works and media
Sonnier is most closely associated in the collected sources with sculpture using neon, light, and unconventional or ephemeral materials. His broader practice included performance and video, while a French biographical source also identifies drawing and printmaking. Auction and appraisal records should distinguish light-based sculptures and installations from works on paper or other formats rather than treating every object attributed to Sonnier as directly comparable.
Market and appraisal context
An appraisal should first establish whether an object is a neon or other light-based sculpture, another sculptural work, or a work on paper, then compare it with genuinely similar public auction records. Material configuration, documented attribution, date, and work type can affect which comparables are relevant. For an electrical or installation-based object, its particular components and intended presentation also require object-specific investigation. The collected source pack does not include auction-house lot descriptions, condition reports, edition information, or detailed realized-price results, so it does not support a price forecast. Current appraisal work should therefore combine secure identity research with photographs, measurements, documentation, physical condition, and comparable lots selected from available auction evidence.
Auction categories and appraisal factors
Common auction categories
- Light-based sculpture and installation
- Sculpture
- Works on paper and prints
Value drivers
- Work type and material configuration, particularly whether an object is a neon or other light-based sculpture
- Comparable public auction records matched by medium, work type, and sale date
- Object-specific documentation establishing attribution, date, and the intended material configuration
Appraisal caveats
- The collected source pack contains no major auction-house biography, lot description, condition report, edition statement, or detailed realized-price evidence.
- The available evidence supports broad work-type classification but not price predictions, market-trend claims, or conclusions about scarcity.
- Light-based works require object-specific research because the source pack does not document individual components, installation requirements, condition, or replacement history.
Evidence
Sources for artist context
This source-grounded artist context is based on collected public records: medium confidence, adequate source quality.
- Wikidata library authority
- Tate museum or university
- The Museum of Modern Art museum or university
- Getty Vocabulary Program library authority
- Library of Congress library authority
- Wikipedia wikipedia
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.
Artist value FAQ
How much is Keith Sonnier 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 Keith Sonnier artwork?
Yes. Appraisily can review photos, dimensions, signatures, condition, provenance, and comparable market data to prepare a current valuation.