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Cerillion PLC Stock: price and insider trades · United Kingdom

ISIN GB00BYYX6C66GB·Mcap £195MTechnology

1 insider bought €164k of shares over the last 90 days, the latest by Guy O’Connor, filed 22 Oct 2026.

Cerillion PLC: what insiders have been doing

Headquartered in London, United Kingdom, Cerillion PLC belongs to the Technology sector and traces its origins to 1999. Filings by its managers are published through RNS (LSE). The last twelve months, up to 22 October 2026, brought 3 filings signed by 3 insiders.

The record shows 1 purchase on the open market worth €164k, made by 1 insider, against 1 sale by 1 insider. The totals exclude 1 filing filed without an amount. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Biggest ticket of the year: €164k, bought by Guy O’Connor and made public on 22 October 2026. On the buying side, the filings list 1 board member among the declarants.

The last insider purchase was made public on 22 October 2026, 17 days ago. Between a trade and the moment it shows up on RNS (LSE), the median delay is 1 day. The regulation allows three business days to notify a trade (UK MAR).

For context, the typical company on the same exchange (median of 832 companies) published 6 filings over the same period, against 3 filings here. The full history, which starts in 2020, counts 2 purchases against 6 sales.

For comparison within the same sector, see the insider buying recorded at Hanza AB. Source: insider filings from RNS (LSE). Past trades are no guide to future returns.

Insider Decl.
11
Thresholds
n/a
Buy Volume
€176,416
2 ops. · all time
Sell Volume
€1M
6 ops. · all time

Who traded when

BuySale
Affinity Trust Limited1 sale
Guy O’Connor1 buy
Richard Doughty1 sale

Since the insiders bought

  • Filed 26 Feb 2020 · 2447 days ago · €12k
    +116.8%
    Entry £1.97 · Close at T+365 £4.26

Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.

This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.

Fundamental score
Ranked 1,482 of 26,897 companies
78.4
score / 100
Value
65
Quality
92
FCF yld4.7%
Earn yld7.1%
EV/EBITDA9.7x
ROE24%
Gross mgn82%
Net mgn37%
Debt/EBITDA0.1x
Pillars2/3

Transparent value + quality ranking, distinct from the insider signal.

Financial data

as of FY 2025

FY ended September 2025 · cache

£6.60
Analyst consensus
7 analysts
1.00/5
£10.37Target £13.42(+103%)£17.60
Income statement
Revenue£45.4M
Gross profit£37M82% margin
EBITDA£24.3M54% margin
Net income£16.6M32.2% margin
Valuation
PER (trailing)14.3x
PER (forward)1244.5x
P/Book322.0x
Beta0.56
Balance sheet & cash
Market cap£195M
Total debt£3.3M
Free Cash Flow£10.9M
Debt / Equity7%
Profitability & ownership
ROE24.4%
ROA14.6%
% insiders21.0%
% institutions56.9%
Last declaration on 22 October 2026
Declarations11 total
  • ▲
    Non-Executive DirectorExecutives
    138,000 GBP0RNS
    20,000 shares@ £6.90AIMXISIN GB00BYYX6C66RNS:9835259
    Canonical exit: 19 Jan 2027 (T+90)
  • ●
    Chief Marketing OfficerExecutives
    40,009 GBP29RNS
    5,196 shares@ £7.700.020% mcap100.0% of flowAIMXISIN GB00BYYX6C66RNS:9778417
  • ▼
    Related company / holdingExecutives
    0RNS
    3,346,887 shares0Outside of a trading venueISIN GB00BYYX6C66RNS:5871720
  • ▼
    Business Development DirectorExecutives
    18 GBP19RNS
    5,576 shares@ £0.1835100.0% of flowAIMXISIN GB00BYYX6C66RNS:5682515
  • ▼
    Senior Vice President, Asia PacificExecutives
    135,650 GBP31FCA-NSM
    15,000 shares@ £9.0433100.0% of flowLondon Stock Exchange, AIM Market (XLON)ISIN GB00BYYX6C66FCA-NSM:4034755
  • ▼
    PCA of Andrew Smith, Marketing DirectorExecutives
    99,386 GBP29FCA-NSM
    12,000 shares@ £8.282271.1% of flowLondon Stock Exchange, AIM Market (XLON)ISIN GB00BYYX6C66FCA-NSM:4005429
  • ▼
    Senior Vice President, Asia PacificExecutives
    343,189 GBP31FCA-NSM
    44,570 shares@ £7.7097.1% of flowLondon Stock Exchange, AIM Market (XLON)ISIN GB00BYYX6C66FCA-NSM:3991235
  • ▼
    CFOExecutives
    293,600 GBP27FCA-NSM
    40,000 shares@ £7.34100.0% of flowLondon Stock Exchange, AIM Market (XLON)ISIN GB00BYYX6C66FCA-NSM:3983045
  • ●
    Chief Operating OfficerExecutives
    0FCA-NSM
    18,645 sharesOutside a trading venueISIN GB00BYYX6C66FCA-NSM:3868736-0
  • ●
    PCA of Mark Nicholls, COOExecutives
    0FCA-NSM
    18,645 sharesOutside a trading venueISIN GB00BYYX6C66FCA-NSM:3868736-1
  • ▲
    Business Development DirectorExecutives
    9,975 GBP19FCA-NSM
    4,672 shares@ £2.13599.8% of flowLondon Stock Exchange, AIM Market (XLON)ISIN GB00BYYX6C66FCA-NSM:LSE20200226070004_3506260_20200331164943056_24548
    Canonical exit: 26 May 2020 (T+90)

11 of 11 declarations

About Cerillion PLC

Cerillion PLC is a company that specializes in revenue management and billing solutions for the telecommunications and utilities sectors. It provides software and services to help businesses optimize their financial operations.