United Kingdom Chemicals

Synthomer PLC (SYNT)

Track

The most recent insider trading activity at Synthomer PLC occurred on August 7, 2025, when a non-executive director purchased 25,000 shares. Prior to this, there was a significant period of buying activity by multiple directors and executives in October 2023. No insider transactions have been recorded in the last three months.
Ticker: SYNT Exchange: LSE
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Synthomer PLC. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Buy 7 Aug 2025
Value £3,383,380.45 | Price 279.40 | Shares 97,149
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-08-11 2025-08-07 B Purchase Uwe Halder

Non-Executive Director

Executive Director
97,149
279.40
£3,383,380 		97,149 279.40 £3,383,380
2023-11-03 2023-10-30 S Sale Alexander Catto

Non-Executive Director

Executive Director
89,311
174.16
£4,127,328 		89,311 174.16 £4,127,328
2023-11-03 2023-10-30 B Purchase Alexander Catto

Non-Executive Director

Executive Director
9,060
191.07
£3,410,507 		9,060 191.07 £3,410,507
2023-10-23 2023-10-20 B Purchase
1.3
Holly Van Deursen

Non-Executive Director

Executive Director
10,000
1.85
£18,500 		10,000 1.85 £18,500
2023-10-17 2023-10-16 B Purchase
2.1
Lily Liu

Chief Financial Officer

Officer
20,000
2.05
£41,000 		20,000 2.05 £41,000
2023-10-18 2023-10-13 B Purchase
1.3
Holly A. Van Deursen

Independent Non-executive Director

Non-Executive Director
12,000
1.97
£23,640 		12,000 1.97 £23,640
2023-10-18 2023-10-13 B Purchase Roberto Gualdoni

Independent Non-executive Director

Non-Executive Director
20,052
1.97
£39,502 		20,052 1.97 £39,502
2023-10-18 2023-10-13 B Purchase Lee Hau Hian

Non-executive Director

Executive Director
140,232
1.97
£276,257 		140,232 1.97 £276,257
2023-10-18 2023-10-13 B Purchase
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through CairnSea Investments, a closely affiliated person
50,000
1.97
£98,500 		50,000 1.97 £98,500
2023-10-18 2023-10-13 B Purchase
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through Schivas Estates Ltd, a closely affiliated person
26,303
1.97
£51,817 		26,303 1.97 £51,817
2023-10-18 2023-10-13 B Purchase
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through SG Catto Charitable Trust, a closely affiliated person
158,921
1.97
£313,074 		158,921 1.97 £313,074
2023-10-18 2023-10-13 B Purchase
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through Crescent Trustees, a closely affiliated person
30,000
1.97
£59,100 		30,000 1.97 £59,100
2023-10-18 2023-10-13 B Purchase Elizabeth Catto

PCA to the Hon Alexander Catto (PDMR)

Through Hon Alexander Catto, a closely affiliated person
8,664
1.97
£17,068 		8,664 1.97 £17,068
2023-10-18 2023-10-13 B Purchase Alexander Catto

Non-executive Director

Executive Director
118,820
1.97
£234,075 		118,820 1.97 £234,075
2023-10-18 2023-10-13 B Purchase
2.1
Lily Liu

Chief Financial Officer

Officer
6,696
1.97
£13,191 		6,696 1.97 £13,191
2023-10-18 2023-10-13 B Purchase Michael Willome

Chief Executive Officer

Officer
54,000
1.97
£106,380 		54,000 1.97 £106,380
2023-10-18 2023-10-13 B Purchase
3.7
Caroline Johnstone

Chair

Director
39,376
1.97
£77,571 		39,376 1.97 £77,571
2023-10-16 2023-10-10 S Sale Elizabeth Catto

PCA to the Hon Alexander Catto (PDMR)

Through Hon Alexander Catto, a closely affiliated person
18,020
0.19
£3,435 		18,020 0.19 £3,435
2023-10-16 2023-10-10 S Sale
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through SG Catto Charitable Trust, a closely affiliated person
318,381
0.19
£60,683 		318,381 0.19 £60,683
2023-10-16 2023-10-10 B Purchase
1.2
Hon Alexander Catto

PCA to the Hon Alexander Catto (PDMR)

Through Schivas Estates Ltd, a closely affiliated person
89,977
0.19
£17,150 		89,977 0.19 £17,150
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