> Source: https://www.openingbid.art/artist/william-sidney-cooper · updated 2026-11-02

# William Sidney Cooper (1841–1941)

William Sidney Cooper is a British (modern) artist with 27 auction lots recorded since 1997, median price $1,003. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.

A work by William Sidney Cooper sold in 2026 for $1,636, according to OpeningBid's index of auction results.

## What is a William Sidney Cooper work worth?

Across 22 sold lots tracked by OpeningBid, the median price of a William Sidney Cooper work is $1,003.

The median William Sidney Cooper work on paper sells for $344 across 12 lots.

The median William Sidney Cooper painting sells for $1,475 across 14 lots.

Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

## Price breakdown by category

| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 14 | $1,475†‡ | $8,625 | — | 2026-09-16 |
| Works on Paper | 15 | $344‡ | $1,905 | 80% | 2024-08-07 |

† hammer price — buyer's premium not included.

‡ reported price — whether it includes the buyer's premium is not yet verified.

## Price by size

### Paintings

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 8 | $675–$1,728†‡ | $1,252†‡ | $6,080‡ |

† hammer price — buyer's premium not included.

‡ reported price — whether it includes the buyer's premium is not yet verified.

### Works on Paper

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| small (under 50 cm) | 10 | $298–$513‡ | $388‡ | $1,905 |

‡ reported price — whether it includes the buyer's premium is not yet verified.

Size is the work's longest edge. Cells appear only with at least 5 sold lots.

## Notable results

| Medium | Year | Price |
|---|---|---|
| Paintings | 1999 | $8,625 |
| Paintings | 2013 | $6,080‡ |
| Works on Paper | 2015 | $1,905 |
| Works on Paper | 2011 | $1,228 |

‡ reported price — whether it includes the buyer's premium is not yet verified.

The highest recorded result in each medium. The full sale history is in the OpeningBid app (free sign-up).

## Frequently asked questions

### What is a William Sidney Cooper worth?

Across 22 sold lots tracked by OpeningBid, the median price of a William Sidney Cooper work is $1,003. The median William Sidney Cooper work on paper sells for $344 across 12 lots. The median William Sidney Cooper painting sells for $1,475 across 14 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

### What is the average price of a William Sidney Cooper work on paper?

Based on 12 sold lots tracked by OpeningBid, the median auction price of a William Sidney Cooper work on paper is $344. Some prices are not yet basis-verified (premium-inclusive or hammer).

### What is William Sidney Cooper's most expensive work on paper?

The highest price recorded at auction for a William Sidney Cooper work on paper is $1,905.

### What is the average price of a William Sidney Cooper painting?

Based on 14 sold lots tracked by OpeningBid, the median auction price of a William Sidney Cooper painting is $1,475. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

### What is William Sidney Cooper's most expensive painting?

The highest price recorded at auction for a William Sidney Cooper painting is $8,625.

### What is the average price of a small William Sidney Cooper work on paper?

Based on 10 sold lots, the median auction price of a small William Sidney Cooper work on paper (small (under 50 cm)) is $388, according to OpeningBid's index of auction results. Some prices are not yet basis-verified (premium-inclusive or hammer).

### What is William Sidney Cooper's auction record?

William Sidney Cooper's auction record is $8,625, set in 1999.

---

Data last updated 2026-11-02. OpeningBid tracks 15,390,829 auction lots from 577 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “William Sidney Cooper auction prices”, https://www.openingbid.art/artist/william-sidney-cooper (updated 2026-11-02).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.