Stock listing

Turquoise:PRML Proteome Sciences plc Share Price

UK listing (Turquoise) of Proteome Sciences plc · home listing LSE:PRM

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Home listing price · LSE:PRM

1.46p GBX (pence) -0.00 (-0.3%)

Close on Oct 30, 2026 · This listing has no price on 6ix; the price shown is the home listing's, LSE:PRM

Past year -21.1% · daily closes, Oct 30, 2025 – Oct 30, 2026, adjusted for splits

Day range: 1.22p – 1.59p GBX (pence)Oct 30, 2026
Volume: 270,086 sharesOct 30, 2026
Market cap: £5.10M GBPAt the close on Oct 30, 2026 · price × 350.7M shares outstanding
52-week range: 1.11p – 4.40p GBX (pence)Lowest and highest trades, Oct 31, 2025 – Oct 30, 2026
Traded on an average day: £3,996 GBPMedian day 67,388 shares · 1 day with no trades · last 3 months, Jul 30, 2026 – Oct 30, 2026

Prices by listing

Listing	Last	Change	Volume	Open	High	Low	Previous close	Price from
LSE:PRM · Home	1.455p GBX (pence)	-0.005 (-0.3%)	270,086	1.22p	1.594p	1.22p	1.46p	Close on Oct 30, 2026
Frankfurt:PI2	€0.0040 EUR	-0.0010 (-20.0%)	—	€0.0040	€0.0040	€0.0040	€0.0050	Close on Oct 27, 2026
Munich:PI2	€0.018 EUR	+0.002 (+9.4%)	—	€0.018	€0.018	€0.018	€0.016	Close on Oct 27, 2026
OTC:PMSNF	$0.01 USD	0.00 (0.0%)	—	$0.01	$0.01	$0.01	$0.01	Close on Oct 27, 2026

Daily closes

Last 3 months, Jul 30, 2026 – Oct 30, 2026 · LSE:PRM · GBX (pence), adjusted for splits

Day	Close	Change	%	Open	High	Low	Volume
Fri, Oct 30	1.455p	-0.005	-0.3%	1.22p	1.594p	1.22p	270,086
Thu, Oct 29	1.46p	+0.06	+4.3%	1.22p	1.594p	1.22p	270,086
Wed, Oct 28	1.40p	-0.05	-3.4%	1.40p	1.501p	1.40p	80,794
Tue, Oct 27	1.45p	0.00	0.0%	1.45p	1.501p	1.45p	80,794
Mon, Oct 26	1.45p	+0.105	+7.8%	1.26p	1.45p	1.26p	8,042
Fri, Oct 23	1.345p	0.00	0.0%	1.21p	1.345p	1.21p	10,000
Thu, Oct 22	1.345p	0.00	0.0%	1.48p	1.48p	1.345p	68
Wed, Oct 21	1.345p	-0.005	-0.4%	1.21p	1.50p	1.21p	251,201
Tue, Oct 20	1.35p	-0.105	-7.2%	1.70p	1.70p	1.35p	977
Mon, Oct 19	1.455p	+0.105	+7.8%	1.21p	1.70p	1.21p	217,021
Fri, Oct 16	1.35p	0.00	0.0%	1.21p	1.49p	1.21p	51,589
Thu, Oct 15	1.35p	-0.005	-0.4%	1.49p	1.49p	1.21p	63,999
Wed, Oct 14	1.355p	-0.005	-0.4%	1.21p	1.50p	1.21p	57,906
Tue, Oct 13	1.36p	0.00	0.0%	1.49p	1.50p	1.21p	115,426
Mon, Oct 12	1.36p	+0.005	+0.4%	1.225p	1.36p	1.225p	460
Fri, Oct 9	1.355p	0.00	0.0%	1.69p	1.69p	1.27p	210,336
Thu, Oct 8	1.355p	-0.065	-4.6%	1.60p	1.60p	1.21p	1,135
Wed, Oct 7	1.42p	-0.035	-2.4%	1.64p	1.70p	1.20p	10,410
Tue, Oct 6	1.455p	+0.055	+3.9%	1.21p	1.455p	1.21p	4,527
Mon, Oct 5	1.40p	-0.05	-3.4%	1.501p	1.60p	1.21p	9,103
Fri, Oct 2	1.45p	0.00	0.0%	1.69p	1.69p	1.45p	4,730
Thu, Oct 1	1.45p	-0.005	-0.3%	1.69p	1.69p	1.21p	59,152
Wed, Sep 30	1.455p	0.00	0.0%	1.20p	1.69p	1.20p	3,770
Tue, Sep 29	1.455p	+0.055	+3.9%	1.69p	1.69p	1.20p	537
Mon, Sep 28	1.40p	+0.075	+5.7%	1.20p	1.69p	1.20p	107,499
Fri, Sep 25	1.325p	-0.125	-8.6%	1.45p	1.45p	1.325p	115,426
Thu, Sep 24	1.45p	-0.045	-3.0%	1.69p	1.69p	1.45p	59
Wed, Sep 23	1.495p	+0.015	+1.0%	1.69p	1.69p	1.27p	63,616
Tue, Sep 22	1.48p	0.00	0.0%	1.51p	1.69p	1.48p	2,186
Mon, Sep 21	1.48p	0.00	0.0%	1.26p	1.69p	1.26p	227,418
Fri, Sep 18	1.48p	+0.08	+5.7%	1.27p	1.69p	1.27p	74,178
Thu, Sep 17	1.40p	-0.05	-3.4%	1.60p	1.70p	1.209p	726,156
Wed, Sep 16	1.45p	0.00	0.0%	1.69p	1.69p	1.259p	5,134,541
Tue, Sep 15	1.45p	+0.05	+3.6%	1.59p	1.60p	1.11p	869,738
Mon, Sep 14	1.40p	0.00	0.0%	1.21p	1.59p	1.20p	28,411
Fri, Sep 11	1.40p	0.00	0.0%	1.21p	1.60p	1.21p	33,588
Thu, Sep 10	1.40p	0.00	0.0%	1.60p	1.60p	1.20p	726
Wed, Sep 9	1.40p	0.00	0.0%	1.60p	1.60p	1.21p	232
Tue, Sep 8	1.40p	0.00	0.0%	1.21p	1.59p	1.21p	2,633
Mon, Sep 7	1.40p	0.00	0.0%	1.60p	1.60p	1.40p	4,629
Fri, Sep 4	1.40p	-0.05	-3.4%	1.21p	1.60p	1.21p	4,662
Thu, Sep 3	1.45p	+0.05	+3.6%	1.60p	1.60p	1.45p	392,957
Wed, Sep 2	1.40p	-0.005	-0.4%	1.58p	1.59p	1.21p	291,547
Tue, Sep 1	1.405p	-0.145	-9.4%	1.31p	1.79p	1.31p	457,661
Fri, Aug 28	1.55p	-0.025	-1.6%	1.50p	1.85p	1.31p	603,747
Thu, Aug 27	1.575p	-0.005	-0.3%	1.40p	1.86p	1.40p	180,100
Wed, Aug 26	1.58p	-0.005	-0.3%	1.31p	1.87p	1.31p	1,171,232
Tue, Aug 25	1.585p	+0.035	+2.3%	1.78p	1.78p	1.417p	327,792
Mon, Aug 24	1.55p	-0.045	-2.8%	1.456p	1.80p	1.436p	1,077,611
Fri, Aug 21	1.595p	-0.105	-6.2%	1.60p	1.99p	1.425p	226,719
Thu, Aug 20	1.70p	-0.095	-5.3%	1.60p	1.99p	1.60p	718,017
Wed, Aug 19	1.795p	-0.005	-0.3%	1.99p	1.99p	1.60p	52,039
Tue, Aug 18	1.80p	+0.005	+0.3%	2.10p	2.10p	1.60p	111,376
Mon, Aug 17	1.795p	-0.01	-0.6%	1.99p	1.99p	1.60p	23,304
Fri, Aug 14	1.805p	+0.005	+0.3%	1.99p	2.00p	1.60p	1,065,455
Thu, Aug 13	1.80p	0.00	0.0%	1.60p	2.00p	1.60p	109,677
Wed, Aug 12	1.80p	+0.025	+1.4%	2.00p	2.00p	1.80p	250
Tue, Aug 11	1.775p	-0.03	-1.7%	1.96p	2.00p	1.61p	202,479
Mon, Aug 10	1.805p	+0.005	+0.3%	1.663p	2.00p	1.60p	376,148
Fri, Aug 7	1.80p	0.00	0.0%	2.00p	2.00p	1.60p	70,777
Thu, Aug 6	1.80p	0.00	0.0%	2.10p	2.10p	1.50p	81,724
Wed, Aug 5	1.80p	0.00	0.0%	2.10p	2.10p	1.80p	722
Tue, Aug 4	1.80p	0.00	0.0%	2.00p	2.00p	1.80p	502,450
Mon, Aug 3	1.80p	0.00	0.0%	1.584p	2.10p	1.584p	25,869
Fri, Jul 31	1.80p	0.00	0.0%	1.80p	1.80p	1.80p	0
Thu, Jul 30	1.80p	0.00	0.0%	1.578p	1.80p	1.578p	1,000

Ticker: Turquoise:PRML
Asset type: Stock
Sector: Health care
Industry: Diagnostics & research services
Exchange: Turquoise
Currency: GBX

What changed lately

Latest news release · Sep 16, 2026
Appointment of Non-Executive Director

Calls

Replays

Proteome Sciences (LSE:PRM) — Final Results for the Year Ending 31st December 2024
Fri, Apr 11, 2025 · 5:30 AM ET
Watch Transcript
Proteome Sciences (LSE:PRM) — Annual General Meeting
Thu, May 16, 2024 · 7:00 AM ET
Watch Transcript
Proteome Sciences (LSE:PRM) — Half Year Results
Tue, Sep 19, 2023 · 5:00 AM ET
Watch Transcript

Latest news

Appointment of Non-Executive Director

Sep 16, 2026

Closed 1.45p (0.0%) on Sep 16, 2026

Further GCLP Chemoproteomics contract secured

Sep 15, 2026

Closed 1.45p (+3.6%) on Sep 15, 2026

Target engagement/chemoproteomics contract

Jun 22, 2026

Closed 1.50p (-0.7%) on Jun 22, 2026

Annual General Meeting Statement

May 14, 2026

Closed 1.85p (0.0%) on May 14, 2026

Final results for the year ended 31 December 2025

Apr 15, 2026

Closed 1.50p (-4.8%) on Apr 15, 2026

Holding(s) in Company

Feb 4, 2026

Closed 1.80p (+0.8%) on Feb 4, 2026

Result of Oversubscribed Retail Offer

Jan 28, 2026

Closed 1.91p (-2.3%) on Jan 28, 2026

Retail Offer to raise up to £60,000

Jan 26, 2026

Closed 1.91p (-41.0%) on Jan 26, 2026

Two Further Substantial Contracts for PRM

Jan 6, 2026

Closed 3.41p (+26.3%) on Jan 6, 2026

Substantial contract for Proteome Sciences

Dec 8, 2025

Closed 2.36p (-9.2%) on Dec 8, 2025

All Proteome Sciences plc news

Decks

7th Siena Meeting From Genome to Proteome: Back to the Future (September 2006)
Conference · 27 slides · Sep 5, 2006

Proteome Sciences plc on 6ix

Sector: Health care
Industry: Diagnostics & research services
News releases: 11 in the last 12 months · 218 in all · newest Sep 16, 2026 · oldest 1999
Calls: 7 calls with a replay · 7 with a transcript · latest Apr 11, 2025
Decks: 1 deck · latest Sep 5, 2006

Where Proteome Sciences plc is listed

Listing	Exchange	Country	Currency
LSE:PRM · Home listing	LSE	United Kingdom	GBX
LS Exchange:935051	LS Exchange	Germany	EUR
Lang & Schwarz:935051	Lang & Schwarz	Germany	EUR
Frankfurt:PI2	Frankfurt	Germany	EUR
Stuttgart:PI2	Stuttgart	Germany	EUR
Turquoise:PRML · This page	Turquoise	United Kingdom	GBX
AQUIS:PRM.GB	AQUIS	United Kingdom	GBX
Munich:PI2	Munich	Germany	EUR
OTC:PMSNF	OTC	United States	USD

Turquoise:PRML Proteome Sciences plc Share Price

Prices by listing

Daily closes

What changed lately

Appointment of Non-Executive Director

Calls

Replays

Latest news

Appointment of Non-Executive Director

Further GCLP Chemoproteomics contract secured

Target engagement/chemoproteomics contract

Annual General Meeting Statement

Final results for the year ended 31 December 2025

Holding(s) in Company

Result of Oversubscribed Retail Offer

Retail Offer to raise up to £60,000

Two Further Substantial Contracts for PRM

Substantial contract for Proteome Sciences

Decks

7th Siena Meeting From Genome to Proteome: Back to the Future (September 2006)

Proteome Sciences plc on 6ix

Where Proteome Sciences plc is listed