Holding(s) in Company

Ibstock PLC

18 June 2026

 

TR-1: Standard form for notification of major holdings

1. Issuer Details

ISIN

GB00BYXJC278

Issuer Name

IBSTOCK PLC

UK or Non-UK Issuer

UK

2. Reason for Notification

An acquisition or disposal of financial instruments

3. Details of person subject to the notification obligation

Name

JPMorgan Chase & Co.

City of registered office (if applicable)

Country of registered office (if applicable)

US

4. Details of the shareholder

Name	City of registered office	Country of registered office
J.P. Morgan Securities PLC

5. Date on which the threshold was crossed or reached

15-Jun-2026

6. Date on which Issuer notified

17-Jun-2026

7. Total positions of person(s) subject to the notification obligation

	% of voting rights attached to shares (total of 8.A)	% of voting rights through financial instruments (total of 8.B 1 + 8.B 2)	Total of both in % (8.A + 8.B)	Total number of voting rights held in issuer
Resulting situation on the date on which threshold was crossed or reached	0.188679	4.972994	5.161673	20390407
Position of previous notification (if applicable)	0.138401	5.001087	5.139488

8. Notified details of the resulting situation on the date on which the threshold was crossed or reached

8A. Voting rights attached to shares

Class/Type of shares ISIN code(if possible)	Number of direct voting rights (DTR5.1)	Number of indirect voting rights (DTR5.2.1)	% of direct voting rights (DTR5.1)	% of indirect voting rights (DTR5.2.1)
GB00BYXJC278		745311		0.188679
Sub Total 8.A	745311		0.188679%

8B1. Financial Instruments according to (DTR5.3.1R.(1) (a))

Type of financial instrument	Expiration date	Exercise/conversion period	Number of voting rights that may be acquired if the instrument is exercised/converted	% of voting rights
Sub Total 8.B1

8B2. Financial Instruments with similar economic effect according to (DTR5.3.1R.(1) (b))

Type of financial instrument	Expiration date	Exercise/conversion period	Physical or cash settlement	Number of voting rights	% of voting rights
Cash-settled Equity Swap	02/07/2026	02/07/2026	Cash	747358	0.189188
Cash-settled Equity Swap	14/07/2026	14/07/2026	Cash	52468	0.013282
Cash-settled Equity Swap	21/08/2026	21/08/2026	Cash	1709000	0.432635
Cash-settled Equity Swap	26/08/2026	26/08/2026	Cash	1261	0.000319
Cash-settled Equity Swap	02/09/2026	02/09/2026	Cash	4726	0.001195
Cash-settled Equity Swap	30/09/2026	30/09/2026	Cash	2182927	0.552610
Cash-settled Equity Swap	02/10/2026	02/10/2026	Cash	199487	0.050430
Cash-settled Equity Swap	19/10/2026	19/10/2026	Cash	385139	0.097499
Cash-settled Equity Swap	03/11/2026	03/11/2026	Cash	8882	0.002247
Cash-settled Equity Swap	30/11/2026	30/11/2026	Cash	47982	0.012145
Cash-settled Equity Swap	02/12/2026	02/12/2026	Cash	16149	0.004087
Cash-settled Equity Swap	23/12/2026	23/12/2026	Cash	982786	0.248795
Cash-settled Equity Swap	05/01/2027	05/01/2027	Cash	39776	0.010057
Cash-settled Equity Swap	22/01/2027	22/01/2027	Cash	982786	0.248795
Cash-settled Equity Swap	28/01/2027	28/01/2027	Cash	2272	0.000575
Cash-settled Equity Swap	02/02/2027	02/02/2027	Cash	1851588	0.468736
Cash-settled Equity Swap	04/02/2027	04/02/2027	Cash	10704	0.002709
Cash-settled Equity Swap	02/03/2027	02/03/2027	Cash	222047	0.056200
Cash-settled Equity Swap	11/03/2027	11/03/2027	Cash	882242	0.223343
Cash-settled Equity Swap	02/04/2027	02/04/2027	Cash	16667	0.004215
Cash-settled Equity Swap	28/04/2027	28/04/2027	Cash	939436	0.237800
Cash-settled Equity Swap	30/04/2027	30/04/2027	Cash	271638	0.068765
Cash-settled Equity Swap	12/05/2027	12/05/2027	Cash	106267	0.026901
Cash-settled Equity Swap	18/05/2027	18/05/2027	Cash	82821	0.020966
Cash-settled Equity Swap	02/06/2027	02/06/2027	Cash	363350	0.091976
Cash-settled Equity Swap	11/06/2027	11/06/2027	Cash	30000	0.007594
Cash-settled Equity Swap	15/06/2027	15/06/2027	Cash	30000	0.007594
Cash-settled Equity Swap	22/06/2027	22/06/2027	Cash	2000	0.000505
Cash-settled Equity Swap	29/06/2027	29/06/2027	Cash	33740	0.008541
Cash-settled Equity Swap	02/07/2027	02/07/2027	Cash	75167	0.019026
Cash-settled Equity Swap	12/07/2027	12/07/2027	Cash	3000	0.000759
Cash-settled Equity Swap	03/08/2027	03/08/2027	Cash	66130	0.016740
Cash-settled Equity Swap	26/08/2027	26/08/2027	Cash	332826	0.084241
Cash-settled Equity Swap	13/12/2027	13/12/2027	Cash	1076222	0.272449
Cash-settled Equity Swap	16/12/2027	16/12/2027	Cash	1368286	0.346386
Cash-settled Equity Swap	30/05/2028	30/05/2028	Cash	2772027	0.701718
Cash-settled Equity Swap	03/07/2029	03/07/2029	Cash	15941	0.004035
Cash-settled Equity Swap	15/11/2029	15/11/2029	Cash	436907	0.110601
Cash-settled Equity Swap	04/04/2030	04/04/2030	Cash	67129	0.016993
Cash-settled Equity Swap	02/07/2030	02/07/2030	Cash	9972	0.002524
Cash-settled Equity Swap	06/11/2030	06/11/2030	Cash	1058496	0.267957
Cash-settled Equity Swap	08/05/2031	08/05/2031	Cash	11701	0.002957
Cash-settled Equity Swap	09/05/2033	09/05/2033	Cash	14310	0.003622
Cash-settled Equity Swap	12/05/2033	12/05/2033	Cash	13530	0.003425
Cash-settled Equity Swap	13/05/2033	13/05/2033	Cash	14095	0.003568
Cash-settled Equity Swap	03/06/2033	03/06/2033	Cash	12424	0.003145
Cash-settled Equity Swap	06/06/2033	06/06/2033	Cash	12515	0.003168
Cash-settled Equity Swap	08/06/2033	08/06/2033	Cash	13805	0.003494
Cash-settled Equity Swap	09/06/2033	09/06/2033	Cash	9790	0.002478
Cash-settled Equity Swap	10/06/2033	10/06/2033	Cash	14680	0.003716
Cash-settled Equity Swap	13/06/2033	13/06/2033	Cash	22534	0.005704
Cash-settled Equity Swap	15/06/2033	15/06/2033	Cash	18110	0.004584
Sub Total 8.B2				19645096	4.972994%

9. Information in relation to the person subject to the notification obligation

2. Full chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held starting with the ultimate controlling natural person or legal entities (please add additional rows as necessary)

Ultimate controlling person	Name of controlled undertaking	% of voting rights if it equals or is higher than the notifiable threshold	% of voting rights through financial instruments if it equals or is higher than the notifiable threshold	Total of both if it equals or is higher than the notifiable threshold
JPMorgan Chase & Co.	J.P. Morgan Securities PLC		4.972994	5.023518%
JPMorgan Chase & Co.	J.P. Morgan SE
JPMorgan Chase & Co.	J.P. Morgan Securities LLC

10. In case of proxy voting

Name of the proxy holder

The number and % of voting rights held

The date until which the voting rights will be held

If date does not apply, explain below

11. Additional Information

Chain of controlled undertakings:

JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)
J.P. Morgan International Finance Limited (100%)
J.P. Morgan Capital Holdings Limited (100%)
J.P. Morgan Securities PLC (100%)

JPMorgan Chase & Co.
JPMorgan Chase Bank, National Association (100%)
J.P. Morgan International Finance Limited (100%)
J.P. Morgan SE (100%)

JPMorgan Chase & Co.
JPMorgan Chase Holdings LLC (100%)
J.P. Morgan Broker-Dealer Holdings Inc. (100%)
J.P. Morgan Securities LLC (100%)

12. Date of Completion

17-Jun-2026

13. Place Of Completion

London

 

END