Banksy Index

2003 · Signed · Edition of 150 · Screenprint in colors

Toxic Mary, signed Banksy print

signed

Value, Sep 2026

£22,507

Likely £19,017 to £26,638

12 months

−4.3%

5 years

−53.5%

From Jan 2021 peak

−68.3%

£71,077

An estimate from public auction results for a genuine print with a Pest Control certificate. Condition, edition number and provenance move a single print within its range. Not an appraisal, an offer or advice. How it works

Our value, with every sale marked. Hollow marks are artist's proofs.

Results

14 sales on record, from 2020 to 2026.

Medium
Screenprint in colors on wove paper
Size
70×50 cm (27 1/2 x 19 3/4 inches)
Publisher
Pictures on Walls, London
AlsoToxic Mary, unsigned£11,827 →
DateHousePrice
19 Mar 2026Forum Auctions£18,428
1 Apr 2025Christie's£37,856
18 Jan 2024Phillips£35,360
19 Jan 2023Phillips£33,750
8 Nov 2022Forum Auctions£37,520
13 Jul 2021Phillips£43,200
7 Jun 2021Phillips£48,250
27 Jan 2021Forum Auctions£73,700
18 Sep 2020Sotheby's£67,500
4 Sep 2020Forum Auctions£48,240
19 May 2020Forum Auctions£29,480
24 Mar 2020Forum Auctions£22,780
4 Mar 2020Christie's£21,626
23 Jan 2020Phillips£34,840

Questions

How much is a signed Banksy Toxic Mary worth?+

We value a signed Toxic Mary at £22,507 as of Sep 2026, with most sales likely between £19,017 and £26,638. The value is drawn from 14 auction results, adjusted for how the whole Banksy print market has moved since each sale. Condition, the certificate and the edition number move a single print within that range.

When did a signed Toxic Mary last sell at auction?+

The most recent result on record is £18,428 at Forum Auctions on 19 Mar 2026, all in, including buyer's premium and fees.

What is the highest price paid for a signed Toxic Mary?+

The highest result on record for the regular edition is £73,700, at Forum Auctions in Jan 2021. Our value peaked at £71,077 in Jan 2021 and is −68.3% from that peak today.

How many signed Toxic Mary prints are there?+

The signed edition of Toxic Mary is 150 prints. It was released in 2003 by Pictures on Walls.

Does a Toxic Mary need a Pest Control certificate?+

The major auction houses only offer Banksy prints with a certificate from Pest Control Office, the artist's authentication body. Without one, a print cannot be sold through them, and the results here will not reflect its value.

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