OSB GROUP PLC                                        
ISIN: GB00BLDRH360
21 August 2025

LEI number: 213800ZBKL9BHSL2K459

OSB GROUP PLC (the “Company”)
Transaction in Own Shares

The Company announces that on 20 August 2025 it had purchased a total of 84,615 of its ordinary shares of £0.01 each (the "ordinary shares") on the London Stock Exchange, CBOE BXE and CBOE CXE, through the Company's broker Citigroup Global Markets Limited as detailed below. The repurchased ordinary shares will be cancelled.

  London Stock Exchange CBOE BXE CBOE CXE
Number of ordinary shares purchased 84,615 - -
Highest price paid (per ordinary share) 546.50p - -
Lowest price paid (per ordinary share) 519.50p - -
Volume weighted average price paid (per ordinary share) 539.48p - -

The purchases form part of the Company’s share buyback programme announced on 13 March 2025.

Following settlement of the above purchases and cancellation of the purchased ordinary shares, the Company's total number of ordinary shares in issue shall be 362,983,072 ordinary shares.

No ordinary shares are held in treasury. Therefore, the total number of voting rights in the Company is 362,983,072.

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 as incorporated into and implemented under English law (including by virtue of the European Union (Withdrawal) Act 2018), the detailed breakdown of individual trades made by Citigroup Global Markets Limited on behalf of the Company as part of the share buyback programme is set out below.

This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction.

Schedule of Purchases – Individual Transactions

Issuer Name OSB GROUP PLC
LEI 213800ZBKL9BHSL2K459
ISIN GB00BLDRH360
Intermediary Name Citigroup Global Markets Limited
Intermediary Code SBILGB2L
Timezone GMT+1
Currency GBP


Transaction Date Trade Time Currency Volume Price Trading Venue Transaction ID
20-08-2025 16:25:21 GBp 240 543.50 XLON xHaNsT3aYVc
20-08-2025 16:25:15 GBp 1,175 544.50 XLON xHaNsT3aZWb
20-08-2025 16:25:15 GBp 85 545.00 XLON xHaNsT3aZWf
20-08-2025 16:25:15 GBp 124 545.00 XLON xHaNsT3aZWh
20-08-2025 16:25:00 GBp 307 545.00 XLON xHaNsT3aZ31
20-08-2025 16:24:40 GBp 215 545.00 XLON xHaNsT3aWce
20-08-2025 16:22:54 GBp 141 545.00 XLON xHaNsT3akHF
20-08-2025 16:22:54 GBp 125 545.00 XLON xHaNsT3akHH
20-08-2025 16:22:54 GBp 577 545.00 XLON xHaNsT3akHJ
20-08-2025 16:22:54 GBp 250 545.00 XLON xHaNsT3akHL
20-08-2025 16:22:54 GBp 71 545.00 XLON xHaNsT3akHN
20-08-2025 16:22:54 GBp 250 545.00 XLON xHaNsT3akHP
20-08-2025 16:22:54 GBp 793 545.00 XLON xHaNsT3akHR
20-08-2025 16:22:54 GBp 333 545.00 XLON xHaNsT3akHT
20-08-2025 16:19:49 GBp 190 544.50 XLON xHaNsT3agFt
20-08-2025 16:17:33 GBp 212 544.50 XLON xHaNsT3af5g
20-08-2025 16:16:30 GBp 313 545.00 XLON xHaNsT3aM4C
20-08-2025 16:16:28 GBp 217 545.00 XLON xHaNsT3aM1z
20-08-2025 16:16:25 GBp 816 545.50 XLON xHaNsT3aM2G
20-08-2025 16:16:25 GBp 396 545.50 XLON xHaNsT3aM2I
20-08-2025 16:16:15 GBp 335 546.00 XLON xHaNsT3aMK9
20-08-2025 16:16:15 GBp 333 546.00 XLON xHaNsT3aMKM
20-08-2025 16:16:15 GBp 642 546.00 XLON xHaNsT3aMKO
20-08-2025 16:16:15 GBp 333 546.00 XLON xHaNsT3aMNb
20-08-2025 16:16:15 GBp 642 546.00 XLON xHaNsT3aMNd
20-08-2025 16:16:15 GBp 457 546.00 XLON xHaNsT3aMNZ
20-08-2025 16:12:44 GBp 69 545.50 XLON xHaNsT3aIBC
20-08-2025 16:12:44 GBp 591 545.50 XLON xHaNsT3aIBE
20-08-2025 16:11:39 GBp 165 545.00 XLON xHaNsT3aJLE
20-08-2025 16:11:39 GBp 392 545.00 XLON xHaNsT3aJLK
20-08-2025 16:11:18 GBp 1,171 544.50 XLON xHaNsT3aGZ6
20-08-2025 15:58:10 GBp 367 539.50 XLON xHaNsT3a5$F
20-08-2025 15:57:19 GBp 5 539.50 XLON xHaNsT3a2kg
20-08-2025 15:56:51 GBp 252 539.50 XLON xHaNsT3a2AL
20-08-2025 15:56:22 GBp 705 540.00 XLON xHaNsT3a3kI
20-08-2025 15:56:22 GBp 224 541.00 XLON xHaNsT3a3kR
20-08-2025 15:56:22 GBp 1,782 542.00 XLON xHaNsT3a3kT
20-08-2025 15:56:22 GBp 797 541.50 XLON xHaNsT3a3kV
20-08-2025 15:54:39 GBp 47 540.00 XLON xHaNsT3a1j7
20-08-2025 15:54:39 GBp 191 540.00 XLON xHaNsT3a1j9
20-08-2025 15:54:01 GBp 313 540.00 XLON xHaNsT3a1Sw
20-08-2025 15:48:17 GBp 804 539.50 XLON xHaNsT3aBP3
20-08-2025 15:48:16 GBp 3,239 540.00 XLON xHaNsT3aBOi
20-08-2025 15:35:03 GBp 1,426 539.00 XLON xHaNsT3bwdS
20-08-2025 15:29:13 GBp 758 539.50 XLON xHaNsT3bbyI
20-08-2025 15:29:12 GBp 1,727 540.00 XLON xHaNsT3bb$D
20-08-2025 15:28:24 GBp 393 539.50 XLON xHaNsT3bY5H
20-08-2025 15:28:24 GBp 467 540.00 XLON xHaNsT3bY5I
20-08-2025 15:27:06 GBp 230 539.50 XLON xHaNsT3bWYp
20-08-2025 15:17:18 GBp 526 538.00 XLON xHaNsT3bM6q
20-08-2025 15:17:15 GBp 1,117 538.00 XLON xHaNsT3bM0G
20-08-2025 15:10:25 GBp 266 538.00 XLON xHaNsT3bHuW
20-08-2025 15:10:00 GBp 288 538.00 XLON xHaNsT3bHQz
20-08-2025 15:08:01 GBp 395 538.00 XLON xHaNsT3bSoN
20-08-2025 15:08:01 GBp 511 538.00 XLON xHaNsT3bSzw
20-08-2025 15:05:25 GBp 245 538.50 XLON xHaNsT3bQO1
20-08-2025 15:05:00 GBp 265 539.00 XLON xHaNsT3bR4N
20-08-2025 15:05:00 GBp 178 539.00 XLON xHaNsT3bR4P
20-08-2025 15:04:08 GBp 137 539.00 XLON xHaNsT3bOnP
20-08-2025 15:04:08 GBp 531 539.00 XLON xHaNsT3bOnR
20-08-2025 15:04:05 GBp 1,379 539.50 XLON xHaNsT3bOwN
20-08-2025 15:04:05 GBp 470 539.50 XLON xHaNsT3bOwP
20-08-2025 15:04:05 GBp 344 540.00 XLON xHaNsT3bOwU
20-08-2025 15:04:05 GBp 382 540.00 XLON xHaNsT3bO5W
20-08-2025 14:53:42 GBp 341 536.50 XLON xHaNsT3bC@c
20-08-2025 14:53:42 GBp 489 537.00 XLON xHaNsT3bC@e
20-08-2025 14:52:19 GBp 608 537.50 XLON xHaNsT3bAiG
20-08-2025 14:51:21 GBp 925 538.00 XLON xHaNsT3bBqn
20-08-2025 14:50:17 GBp 1,695 538.50 XLON xHaNsT3b8qq
20-08-2025 14:49:25 GBp 298 539.00 XLON xHaNsT3b9eL
20-08-2025 14:48:28 GBp 302 539.00 XLON xHaNsT3cse6
20-08-2025 14:47:31 GBp 320 539.00 XLON xHaNsT3ctj6
20-08-2025 14:46:34 GBp 237 539.00 XLON xHaNsT3cqk0
20-08-2025 14:46:34 GBp 56 539.00 XLON xHaNsT3cqk2
20-08-2025 14:45:37 GBp 81 539.00 XLON xHaNsT3crjE
20-08-2025 14:45:37 GBp 253 539.00 XLON xHaNsT3crjG
20-08-2025 14:44:59 GBp 206 539.00 XLON xHaNsT3codM
20-08-2025 14:44:21 GBp 172 539.00 XLON xHaNsT3coNS
20-08-2025 14:44:21 GBp 33 539.00 XLON xHaNsT3coNU
20-08-2025 14:43:43 GBp 125 539.00 XLON xHaNsT3cp$T
20-08-2025 14:43:43 GBp 89 539.00 XLON xHaNsT3cp$V
20-08-2025 14:42:48 GBp 137 539.00 XLON xHaNsT3cm03
20-08-2025 14:42:48 GBp 365 539.00 XLON xHaNsT3cm05
20-08-2025 14:40:39 GBp 444 538.50 XLON xHaNsT3c@Dt
20-08-2025 14:39:55 GBp 174 539.00 XLON xHaNsT3c$3W
20-08-2025 14:39:55 GBp 116 539.00 XLON xHaNsT3c$3Y
20-08-2025 14:38:58 GBp 275 539.00 XLON xHaNsT3cyAS
20-08-2025 14:38:01 GBp 213 538.50 XLON xHaNsT3czEI
20-08-2025 14:38:01 GBp 64 538.50 XLON xHaNsT3czEK
20-08-2025 14:37:04 GBp 268 538.50 XLON xHaNsT3cw6s
20-08-2025 14:36:07 GBp 246 538.50 XLON xHaNsT3cxtI
20-08-2025 14:36:07 GBp 17 538.50 XLON xHaNsT3cxtK
20-08-2025 14:35:10 GBp 277 538.50 XLON xHaNsT3cuqo
20-08-2025 14:34:13 GBp 266 538.50 XLON xHaNsT3cvtQ
20-08-2025 14:33:16 GBp 260 538.50 XLON xHaNsT3cctK
20-08-2025 14:32:38 GBp 254 538.50 XLON xHaNsT3cdWv
20-08-2025 14:32:00 GBp 251 538.50 XLON xHaNsT3cdVh
20-08-2025 14:31:22 GBp 251 538.50 XLON xHaNsT3ca9a
20-08-2025 14:30:44 GBp 101 538.50 XLON xHaNsT3cb1T
20-08-2025 14:30:44 GBp 169 538.50 XLON xHaNsT3cb1V
20-08-2025 14:29:28 GBp 213 538.50 XLON xHaNsT3cZaR
20-08-2025 14:28:50 GBp 328 538.50 XLON xHaNsT3cZxW
20-08-2025 14:27:53 GBp 241 538.50 XLON xHaNsT3cWzs
20-08-2025 14:27:53 GBp 36 538.50 XLON xHaNsT3cWzu
20-08-2025 14:18:08 GBp 626 538.50 XLON xHaNsT3chxB
20-08-2025 14:15:43 GBp 910 539.00 XLON xHaNsT3cftn
20-08-2025 14:10:47 GBp 1,163 539.50 XLON xHaNsT3cLhA
20-08-2025 14:10:46 GBp 1,239 540.00 XLON xHaNsT3cLhH
20-08-2025 14:09:44 GBp 984 539.50 XLON xHaNsT3cLT2
20-08-2025 13:56:22 GBp 292 538.50 XLON xHaNsT3cQ5L
20-08-2025 13:56:22 GBp 573 538.50 XLON xHaNsT3cQ5N
20-08-2025 13:56:05 GBp 933 539.00 XLON xHaNsT3cQFQ
20-08-2025 13:46:09 GBp 486 538.50 XLON xHaNsT3c5Zh
20-08-2025 13:46:09 GBp 726 539.00 XLON xHaNsT3c5Zj
20-08-2025 13:30:26 GBp 294 538.50 XLON xHaNsT3c8tc
20-08-2025 13:28:54 GBp 58 538.50 XLON xHaNsT3c9tR
20-08-2025 13:26:14 GBp 320 540.00 XLON xHaNsT3dtWP
20-08-2025 13:22:32 GBp 379 540.50 XLON xHaNsT3drD2
20-08-2025 13:18:00 GBp 260 540.00 XLON xHaNsT3dmzc
20-08-2025 13:15:35 GBp 53 541.50 XLON xHaNsT3dnPL
20-08-2025 13:14:41 GBp 353 542.00 XLON xHaNsT3d@ve
20-08-2025 13:09:36 GBp 146 542.00 XLON xHaNsT3dzM2
20-08-2025 13:09:36 GBp 559 542.00 XLON xHaNsT3dzM4
20-08-2025 13:09:26 GBp 775 542.50 XLON xHaNsT3dzR1
20-08-2025 12:51:53 GBp 221 543.00 XLON xHaNsT3dX6v
20-08-2025 12:51:14 GBp 320 543.50 XLON xHaNsT3dXGG
20-08-2025 12:49:04 GBp 558 544.00 XLON xHaNsT3dljc
20-08-2025 12:49:04 GBp 293 543.50 XLON xHaNsT3dljw
20-08-2025 12:49:04 GBp 485 544.00 XLON xHaNsT3dlj3
20-08-2025 12:44:38 GBp 368 544.50 XLON xHaNsT3dgy9
20-08-2025 12:20:17 GBp 420 544.00 XLON xHaNsT3dSMI
20-08-2025 12:20:17 GBp 604 544.50 XLON xHaNsT3dSMK
20-08-2025 12:06:56 GBp 297 542.50 XLON xHaNsT3d47E
20-08-2025 12:05:33 GBp 11 542.00 XLON xHaNsT3d5vU
20-08-2025 12:02:12 GBp 245 541.00 XLON xHaNsT3d3HM
20-08-2025 11:59:21 GBp 442 542.00 XLON xHaNsT3dEjS
20-08-2025 11:53:41 GBp 407 542.50 XLON xHaNsT3dD@B
20-08-2025 11:50:00 GBp 311 543.50 XLON xHaNsT3dB5p
20-08-2025 11:49:32 GBp 505 543.00 XLON xHaNsT3dBLe
20-08-2025 11:36:56 GBp 410 538.00 XLON xHaNsT3Wo5B
20-08-2025 11:32:09 GBp 177 538.50 XLON xHaNsT3WnhH
20-08-2025 11:32:09 GBp 215 538.50 XLON xHaNsT3WnhJ
20-08-2025 11:25:58 GBp 229 539.00 XLON xHaNsT3WyI@
20-08-2025 11:25:58 GBp 333 539.50 XLON xHaNsT3WyI0
20-08-2025 11:21:32 GBp 412 539.50 XLON xHaNsT3WxyU
20-08-2025 11:13:01 GBp 265 539.00 XLON xHaNsT3WaLp
20-08-2025 11:12:25 GBp 383 539.50 XLON xHaNsT3WbYs
20-08-2025 11:08:25 GBp 140 539.00 XLON xHaNsT3WZlv
20-08-2025 11:06:36 GBp 490 539.00 XLON xHaNsT3WWjD
20-08-2025 11:06:36 GBp 336 539.50 XLON xHaNsT3WWjF
20-08-2025 10:51:28 GBp 43 536.00 XLON xHaNsT3Wfsu
20-08-2025 10:51:28 GBp 380 536.00 XLON xHaNsT3Wfsw
20-08-2025 10:51:28 GBp 606 536.50 XLON xHaNsT3Wfsy
20-08-2025 10:35:33 GBp 406 534.00 XLON xHaNsT3WH9Q
20-08-2025 10:30:51 GBp 209 534.50 XLON xHaNsT3WSvO
20-08-2025 10:27:49 GBp 207 533.00 XLON xHaNsT3WQev
20-08-2025 10:24:59 GBp 454 535.00 XLON xHaNsT3WRJ9
20-08-2025 10:24:59 GBp 21 535.00 XLON xHaNsT3WRJB
20-08-2025 10:18:45 GBp 344 536.50 XLON xHaNsT3W70@
20-08-2025 10:13:29 GBp 220 536.50 XLON xHaNsT3W2VY
20-08-2025 10:11:16 GBp 440 537.00 XLON xHaNsT3W0cf
20-08-2025 10:05:26 GBp 177 537.50 XLON xHaNsT3WF@x
20-08-2025 10:05:26 GBp 265 537.50 XLON xHaNsT3WF@z
20-08-2025 10:05:17 GBp 626 537.50 XLON xHaNsT3WFxp
20-08-2025 09:51:32 GBp 337 534.00 XLON xHaNsT3XsSc
20-08-2025 09:47:20 GBp 346 536.50 XLON xHaNsT3XrxB
20-08-2025 09:42:51 GBp 295 538.50 XLON xHaNsT3XmhR
20-08-2025 09:39:36 GBp 208 539.50 XLON xHaNsT3X@jz
20-08-2025 09:36:46 GBp 213 539.50 XLON xHaNsT3X$Mg
20-08-2025 09:36:46 GBp 229 539.50 XLON xHaNsT3X$Mi
20-08-2025 09:33:42 GBp 336 539.00 XLON xHaNsT3Xz7q
20-08-2025 09:26:00 GBp 284 539.00 XLON xHaNsT3Xv09
20-08-2025 09:22:29 GBp 337 539.50 XLON xHaNsT3Xdsh
20-08-2025 09:17:37 GBp 309 539.00 XLON xHaNsT3XYe7
20-08-2025 09:14:43 GBp 282 539.50 XLON xHaNsT3XZVG
20-08-2025 09:10:44 GBp 216 536.50 XLON xHaNsT3Xk12
20-08-2025 09:08:18 GBp 235 538.00 XLON xHaNsT3XinL
20-08-2025 09:08:18 GBp 339 538.50 XLON xHaNsT3XinS
20-08-2025 09:01:54 GBp 325 539.00 XLON xHaNsT3XezA
20-08-2025 09:01:07 GBp 324 539.00 XLON xHaNsT3XeUs
20-08-2025 08:59:44 GBp 653 539.00 XLON xHaNsT3XMcI
20-08-2025 08:57:43 GBp 313 538.50 XLON xHaNsT3XNnz
20-08-2025 08:57:06 GBp 216 539.50 XLON xHaNsT3XNCO
20-08-2025 08:57:06 GBp 255 539.50 XLON xHaNsT3XNCQ
20-08-2025 08:57:06 GBp 337 539.00 XLON xHaNsT3XNFZ
20-08-2025 08:57:06 GBp 485 539.50 XLON xHaNsT3XNFb
20-08-2025 08:35:18 GBp 328 546.50 XLON xHaNsT3XRCy
20-08-2025 08:32:46 GBp 58 545.50 XLON xHaNsT3XPc$
20-08-2025 08:30:09 GBp 205 543.00 XLON xHaNsT3X6UB
20-08-2025 08:29:40 GBp 241 546.00 XLON xHaNsT3X7pF
20-08-2025 08:29:38 GBp 347 546.50 XLON xHaNsT3X7oP
20-08-2025 08:26:55 GBp 385 541.50 XLON xHaNsT3X5jQ
20-08-2025 08:26:48 GBp 551 542.00 XLON xHaNsT3X5kH
20-08-2025 08:24:20 GBp 501 540.00 XLON xHaNsT3X21x
20-08-2025 08:22:16 GBp 382 536.50 XLON xHaNsT3X3EZ
20-08-2025 08:22:15 GBp 546 537.00 XLON xHaNsT3X3Ez
20-08-2025 08:15:13 GBp 211 525.00 XLON xHaNsT3XCop
20-08-2025 08:15:13 GBp 436 526.00 XLON xHaNsT3XCos
20-08-2025 08:15:13 GBp 623 526.50 XLON xHaNsT3XCou
20-08-2025 08:11:08 GBp 273 523.50 XLON xHaNsT3XAUz
20-08-2025 08:10:02 GBp 273 523.50 XLON xHaNsT3XBEX
20-08-2025 08:08:53 GBp 87 521.00 XLON xHaNsT3X8vh
20-08-2025 08:08:50 GBp 204 521.00 XLON xHaNsT3X8uD
20-08-2025 08:07:45 GBp 291 519.50 XLON xHaNsT3X9Ym
20-08-2025 08:07:08 GBp 291 526.50 XLON xHaNsT3X9wA
20-08-2025 08:05:30 GBp 238 524.00 XLON xHaNsT3YsC8
20-08-2025 08:05:30 GBp 344 524.50 XLON xHaNsT3YsCA
20-08-2025 08:03:35 GBp 443 524.00 XLON xHaNsT3YqeI
20-08-2025 08:02:50 GBp 472 532.50 XLON xHaNsT3YqN8
20-08-2025 08:02:50 GBp 556 533.00 XLON xHaNsT3YqNE
20-08-2025 08:02:50 GBp 478 534.00 XLON xHaNsT3YqMb
20-08-2025 08:02:50 GBp 287 533.50 XLON xHaNsT3YqMX
20-08-2025 08:02:50 GBp 369 534.50 XLON xHaNsT3YqMZ