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Diploma PLC Stock: price and insider trades · United Kingdom
No insider purchase over the last 90 days. The latest was filed 20 May 2026.
Diploma PLC: what insiders have been doing
Headquartered in London, United Kingdom, Diploma PLC is a listed company and traces its origins to 1931. Filings by its managers are published through RNS (LSE). The last twelve months, up to 18 October 2026, brought 2 filings signed by 2 insiders.
No insider sold shares on the market over the period. Instead, the filings list 2 purchases totalling €68k, made by 2 insiders. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. The buyers include 1 board member. Biggest ticket of the year: €54k, bought by Cheri Phyfer and made public on 24 September 2026 (0.0005% of market cap).
With 2 filings in twelve months, the company is quieter than the median of 6 filings across the 834 companies we follow on the same exchange. The full history, which starts in 2026, counts 2 purchases against no sales.
The most recent open-market purchase was published on 24 September 2026, 24 days ago.
Every figure here comes from the filings published by RNS (LSE) and describes the past, not future prices; it is not investment advice.
Insider Decl.
2
Thresholds
n/a
Buy Volume
€68,063
2 ops. · all time
Sell Volume
n/a
n/a
Who traded when
BuySaleCheri Phyfer1 buy
Unknown1 buy
Since the insiders bought
- Unknown+3.8%Entry £68.45 · Close at T+90 £71.05
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.
Analyst consensus: bullish or bearish?
Analysts rate Diploma PLC Buy (bullish), based on 16 analysts. Average price target: £83.29.
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 11,058 of 24,161 companies
53.7
score / 100
Value35
Quality72
FCF yld2.4%
Earn yld1.7%
EV/EBITDA30.2x
ROE19%
Gross mgn46%
Net mgn12%
Debt/EBITDA1.3x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended September 2025 · cache
£78.70
Analyst consensus
16 analystsBuy
£70.00Target £83.29(+6%)£90.00
Income statement
Revenue£1.5B
Gross profit£706.1M46% margin
EBITDA£366.2M24% margin
Net income£184.9M11.5% margin
Valuation
PER (trailing)55.8x
PER (forward)2974.7x
P/Book1004.1x
Beta0.87
Balance sheet & cash
Market cap£10.6B
Total debt£464.9M
Free Cash Flow£253.2M
Debt / Equity47%
Profitability & ownership
ROE19.0%
ROA10.8%
% insiders0.5%
% institutions82.9%
Last declaration on 24 September 2026
Declarations2 total
246 shares@ £189.32160.0005% mcap100.0% of flowLondon Stock ExchangeISIN GB0001826634RNS:9787511
Canonical exit: 20 Dec 2026 (T+90)
177 shares@ £50.3753100.0% of flowLondon Stock ExchangeISIN GB0001826634RNS:9581003
Canonical exit: 18 Aug 2026 (T+90)
2 of 2 declarations
About Diploma PLC
Diploma PLC is a UK-based company specializing in the distribution of technical products and services. It primarily operates in the engineering, healthcare, and electronics sectors.
