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Transaction in Own Shares

10th Feb 2017 17:29

RNS Number : 6640W

National Grid PLC

10 February 2017

National Grid plc ("National Grid")

ISIN Code: B00B08SNH3

Transaction in Own Shares

National Grid announces that it has purchased the following number of its Ordinary shares of 1117/43p each on the London Stock Exchange from Merrill Lynch International ("MLI") as part of its buy-back programme announced on 6 February 2017.

Date of purchase:	10 February 2017
Number of Ordinary shares of 1117/43p each purchased:	500,000
Highest price paid per share (pence):	958.5946
Lowest price paid per share (pence):	958.5946
Volume weighted average price paid per share	958.5946

National Grid intends to hold the purchased shares in treasury. Following the purchase of these shares, National Grid holds 192,515,284 of its Ordinary shares in treasury and has 3,750,468,163 Ordinary shares in issue (excluding treasury shares).

In accordance with Article 5(1)(b) of Regulation (EU) No 596/2014 (the "Market Abuse Regulation"), a schedule of individual trades by MLI on 10 February 2017 is set out below.

Schedule of purchases - individual transactions

Transaction Time	Price per share (p)	Quantity of shares purchased
Transaction Time	Price per share (p)	Quantity of shares purchased
08:16:37	955.40	721
08:16:38	955.40	85
08:16:47	955.60	89
08:16:47	955.60	806
08:18:08	955.60	70
08:18:08	955.60	805
08:18:08	955.60	805
08:18:41	956.10	61
08:19:39	956.40	44
08:19:39	956.40	122
08:19:39	956.40	762
08:19:42	956.40	684
08:20:29	956.80	124
08:20:29	956.80	500
08:20:29	956.80	600
08:21:35	956.70	208
08:21:35	956.70	595
08:21:40	956.70	209
08:21:40	956.70	407
08:21:55	956.80	321
08:21:55	956.80	336
08:21:55	956.80	336
08:21:55	956.80	500
08:22:48	957.60	804
08:22:56	957.60	804
08:23:09	957.60	37
08:23:09	957.60	806
08:23:09	957.60	806
08:23:11	957.60	88
08:24:37	957.80	44
08:24:39	957.80	761
08:24:45	957.70	784
08:24:45	957.80	800
08:24:45	957.70	807
08:26:59	958.90	88
08:27:04	959.00	601
08:27:04	959.00	806
08:28:07	959.80	114
08:28:07	959.80	500
08:28:07	959.80	807
08:28:17	959.70	146
08:28:17	959.70	510
08:28:17	959.70	801
08:29:26	959.00	325
08:29:26	959.00	471
08:29:26	959.00	804
08:31:13	958.50	22
08:31:13	958.50	53
08:31:13	958.50	781
08:31:13	958.50	803
08:31:56	957.90	618
08:31:56	957.90	800
08:32:38	957.70	46
08:32:38	957.70	329
08:32:38	957.70	803
08:34:06	958.00	35
08:34:06	958.00	599
08:34:06	958.00	801
08:35:46	958.00	1
08:35:46	958.00	74
08:35:46	958.00	800
08:35:46	958.00	801
08:36:31	957.70	106
08:36:31	957.70	188
08:36:32	957.60	159
08:36:32	957.60	241
08:36:32	957.60	802
08:36:53	957.60	49
08:37:04	957.60	214
08:37:27	957.60	18
08:37:27	957.60	298
08:39:27	956.90	188
08:39:27	956.90	806
08:39:27	956.90	806
08:41:00	956.90	44
08:41:00	956.90	101
08:41:00	956.90	101
08:41:00	956.90	101
08:41:00	956.90	101
08:41:00	956.90	426
08:41:00	956.90	700
08:41:03	956.80	699
08:41:03	956.80	800
08:42:18	956.70	44
08:42:18	956.70	44
08:42:18	956.70	185
08:42:18	956.70	578
08:42:19	956.70	224
08:42:28	956.70	583
08:42:30	956.70	18
08:45:07	957.10	110
08:45:07	957.10	804
08:45:08	957.10	617
08:48:40	957.90	214
08:48:40	957.90	318
08:48:40	957.90	489
08:48:40	957.90	807
08:48:42	957.80	51
08:48:42	957.80	100
08:48:42	957.80	113
08:48:42	957.80	124
08:48:42	957.80	692
08:48:42	957.80	802
08:48:42	957.80	802
08:48:42	957.80	807
08:50:53	959.40	59
08:51:14	959.30	118
08:51:14	959.30	148
08:51:14	959.30	148
08:51:14	959.30	536
08:51:19	959.30	124
08:51:26	959.30	426
08:52:59	960.00	180
08:52:59	960.00	623
08:53:00	959.90	66
08:53:00	960.00	180
08:53:00	960.00	803
08:53:06	959.90	63
08:53:06	959.90	280
08:53:06	959.90	457
08:54:04	960.60	636
08:55:34	960.80	33
08:55:34	960.80	33
08:55:34	960.80	206
08:55:34	960.80	500
08:55:34	960.80	767
08:55:41	960.60	184
08:55:41	960.60	620
08:55:41	960.60	804
08:55:42	960.60	26
08:58:47	960.40	770
08:58:47	960.40	802
08:59:04	959.90	341
08:59:04	959.90	459
08:59:04	959.90	775
09:00:34	959.80	804
09:00:34	959.80	804
09:00:57	959.80	193
09:04:20	959.30	2
09:04:20	959.30	342
09:04:20	959.30	342
09:04:20	959.30	807
09:04:22	958.80	110
09:04:22	958.80	195
09:04:22	958.80	201
09:04:22	958.80	205
09:04:22	958.80	500
09:04:22	958.80	600
09:06:28	959.20	38
09:06:28	959.20	173
09:06:28	959.20	238
09:06:28	959.20	350
09:06:28	959.20	384
09:06:28	959.20	417
09:06:37	959.10	298
09:06:37	959.10	805
09:07:43	959.60	66
09:07:51	959.30	338
09:07:51	959.30	465
09:07:51	959.30	684
09:09:47	959.50	8
09:09:47	959.50	154
09:09:47	959.30	222
09:09:47	959.50	299
09:09:47	959.50	348
09:09:47	959.30	585
09:09:47	959.30	659
09:09:47	959.50	801
09:12:00	958.10	189
09:12:00	958.10	545
09:12:00	958.10	802
09:14:06	958.50	192
09:14:06	958.50	356
09:14:06	958.50	446
09:14:06	958.50	802
09:15:14	958.20	104
09:15:14	958.20	202
09:15:14	958.20	235
09:15:14	958.20	327
09:15:14	958.20	327
09:15:14	958.20	476
09:20:02	958.90	199
09:20:02	958.90	226
09:20:02	958.90	350
09:20:02	958.90	356
09:20:02	958.90	375
09:20:02	958.90	426
09:20:02	958.90	797
09:20:02	959.00	805
09:20:02	958.90	807
09:20:02	959.00	997
09:22:21	958.50	341
09:22:21	958.50	439
09:22:21	958.50	807
09:23:13	958.70	29
09:23:13	958.70	325
09:23:13	958.70	480
09:23:13	958.70	700
09:25:08	959.20	804
09:25:08	959.20	805
09:26:09	959.20	124
09:26:09	959.20	305
09:26:09	959.20	374
09:26:09	959.20	646
09:28:54	959.20	3
09:28:54	959.20	100
09:28:54	959.20	103
09:28:54	959.20	103
09:28:54	959.20	167
09:28:54	959.20	600
09:28:54	959.20	700
09:28:57	958.90	636
09:28:57	958.90	800
09:31:02	958.60	33
09:31:02	958.60	269
09:31:02	958.60	533
09:31:02	958.60	802
09:31:07	958.30	78
09:31:07	958.30	78
09:31:07	958.30	551
09:31:07	958.30	805
09:31:57	958.20	128
09:32:48	958.40	116
09:32:48	958.40	175
09:32:48	958.40	188
09:32:48	958.40	212
09:32:48	958.40	284
09:32:48	958.40	418
09:35:10	958.50	115
09:35:10	958.50	210
09:35:10	958.50	597
09:35:10	958.50	807
09:36:29	958.60	106
09:36:29	958.60	316
09:36:31	958.60	83
09:36:31	958.60	381
09:36:31	958.60	803
09:37:28	958.30	739
09:39:50	958.50	96
09:39:50	958.60	666
09:39:50	958.50	801
09:39:50	958.60	802
09:40:29	958.10	56
09:40:29	958.10	173
09:40:29	958.10	174
09:40:29	958.10	748
09:40:33	958.10	390
09:44:00	958.50	9
09:44:00	958.50	164
09:44:00	958.60	265
09:44:00	958.60	265
09:44:00	958.60	405
09:44:00	958.60	541
09:44:00	958.50	639
09:44:00	958.50	743
09:46:09	958.50	11
09:46:09	958.50	111
09:46:09	958.50	111
09:46:09	958.50	692
09:46:09	958.50	692
09:46:50	958.30	246
09:46:50	958.30	270
09:46:50	958.30	462
09:46:50	958.30	532
09:49:17	957.90	230
09:49:17	957.90	328
09:49:17	957.90	479
09:49:17	957.90	558
09:49:23	957.90	8
09:49:23	957.90	19
09:52:30	958.30	58
09:52:30	958.30	807
09:52:30	958.30	807
09:54:14	958.10	264
09:54:14	958.10	537
09:54:14	958.10	541
09:54:15	958.10	221
09:54:17	958.10	13
09:54:17	958.10	39
09:56:53	957.90	122
09:56:53	957.90	807
09:56:53	957.90	807
10:00:09	958.60	9
10:00:09	958.60	136
10:00:09	958.60	667
10:00:09	958.60	803
10:05:39	958.90	76
10:05:39	958.90	86
10:05:39	958.90	108
10:05:39	958.90	802
10:05:39	958.90	802
10:05:39	958.90	802
10:05:39	958.90	802
10:05:39	958.90	803
10:05:39	958.90	803
10:06:35	958.90	618
10:06:35	958.90	801
10:09:43	958.90	103
10:09:43	958.90	801
10:09:43	958.90	801
10:11:13	958.90	73
10:11:13	958.90	228
10:11:13	958.90	228
10:11:13	958.90	503
10:11:19	958.90	535
10:13:43	958.90	24
10:15:15	958.80	292
10:15:15	958.90	649
10:15:15	958.90	779
10:18:03	959.10	117
10:18:03	959.10	242
10:18:03	959.10	562
10:18:03	959.10	562
10:20:40	959.10	350
10:20:40	959.10	453
10:20:40	959.10	800
10:22:41	959.20	15
10:22:41	959.20	73
10:22:41	959.20	393
10:22:41	959.20	393
10:22:41	959.20	801
10:25:31	958.90	101
10:25:31	958.90	236
10:25:31	958.90	464
10:25:31	959.00	696
10:25:31	959.00	800
10:25:31	958.90	801
10:25:33	958.90	76
10:31:09	959.30	804
10:32:21	959.30	624
10:32:21	959.30	801
10:32:21	959.30	801
10:36:26	959.40	711
10:36:26	959.40	802
10:36:36	959.40	805
10:36:37	959.40	411
10:37:17	959.40	9
10:37:17	959.40	192
10:37:17	959.40	803
10:37:17	959.40	803
10:37:20	959.30	629
10:37:20	959.30	789
10:39:59	959.10	186
10:39:59	959.10	252
10:39:59	959.10	554
10:39:59	959.10	806
10:40:41	959.50	36
10:40:41	959.50	49
10:40:41	959.50	626
10:40:41	959.50	800
10:44:40	959.60	701
10:44:40	959.60	803
10:46:55	959.60	605
10:46:55	959.60	804
10:49:27	958.90	802
10:51:48	959.10	396
10:52:08	959.10	407
10:52:08	959.10	740
10:54:14	959.20	805
10:54:14	959.20	823
10:54:22	959.20	3
10:56:53	958.90	85
10:56:53	958.90	792
10:56:53	958.90	800
10:56:53	958.90	800
11:00:01	959.60	116
11:00:01	959.60	700
11:00:01	959.60	804
11:02:29	959.40	802
11:05:10	959.50	181
11:05:10	959.50	499
11:05:10	959.50	801
11:05:25	959.40	747
11:06:45	959.20	800
11:06:56	959.20	7
11:06:56	959.20	807
11:06:57	959.20	72
11:10:06	959.50	800
11:10:52	959.70	800
11:10:52	959.70	803
11:10:54	959.70	600
11:11:32	959.70	20
11:12:54	959.70	22
11:12:54	959.70	43
11:13:52	959.30	276
11:13:52	959.30	531
11:13:52	959.30	809
11:16:43	959.20	45
11:16:43	959.20	100
11:16:43	959.20	137
11:16:43	959.20	568
11:16:43	959.20	805
11:18:52	958.80	447
11:18:58	958.80	356
11:18:58	958.80	388
11:18:58	958.80	394
11:21:22	959.40	11
11:21:22	959.40	790
11:21:24	959.40	172
11:21:24	959.40	559
11:24:52	959.30	785
11:24:52	959.30	805
11:28:43	959.10	126
11:28:43	959.10	531
11:28:43	959.10	805
11:30:11	959.10	807
11:30:15	959.10	100
11:30:18	959.10	707
11:30:53	959.10	57
11:32:42	958.20	51
11:32:42	958.20	805
11:32:42	958.20	805
11:38:26	958.10	291
11:40:35	958.40	60
11:41:34	958.50	342
11:41:34	958.50	463
11:41:34	958.50	635
11:41:34	958.50	687
11:41:34	958.50	806
11:41:35	958.30	805
11:41:36	958.30	731
11:43:57	958.00	804
11:45:52	958.00	726
11:46:43	958.10	350
11:46:43	958.10	804
11:50:07	958.70	76
11:50:07	958.70	583
11:50:07	958.70	803
11:53:19	958.70	733
11:53:19	958.70	806
11:53:20	958.70	6
11:53:20	958.70	73
11:55:57	958.70	11
11:55:57	958.70	88
11:55:57	958.70	802
11:55:57	958.70	802
11:58:27	958.40	654
11:58:27	958.40	805
11:58:41	958.30	590
11:58:41	958.30	803
12:02:33	958.20	41
12:02:33	958.20	217
12:02:33	958.20	218
12:02:33	958.20	360
12:02:33	958.20	545
12:02:38	958.20	243
12:03:46	957.80	17
12:03:46	957.80	82
12:03:46	957.80	390
12:03:46	957.80	410
12:03:46	957.80	718
12:06:05	957.50	145
12:06:05	957.50	807
12:06:05	957.50	807
12:07:24	958.20	55
12:07:24	958.20	55
12:07:24	958.20	165
12:07:24	958.20	217
12:07:24	958.20	217
12:07:24	958.20	528
12:07:24	958.20	583
12:10:53	957.80	803
12:10:54	957.80	754
12:13:50	958.00	193
12:13:50	958.00	516
12:14:08	958.40	446
12:14:10	958.40	202
12:14:10	958.40	801
12:14:25	958.20	267
12:14:27	958.20	387
12:14:27	958.20	533
12:14:29	958.20	413
12:15:21	958.20	33
12:18:06	957.90	363
12:18:06	957.90	439
12:18:06	957.90	802
12:18:35	957.90	88
12:21:03	957.90	807
12:21:10	957.90	49
12:21:10	957.90	807
12:24:18	958.30	118
12:24:18	958.30	806
12:24:18	958.30	806
12:25:51	958.10	81
12:25:51	958.10	121
12:25:51	958.10	606
12:25:51	958.10	800
12:29:20	957.90	139
12:29:20	957.90	526
12:29:20	957.90	800
12:32:22	957.80	209
12:32:22	957.70	802
12:32:22	957.80	807
12:32:22	957.80	807
12:32:22	957.70	910
12:35:43	957.70	166
12:35:43	957.70	805
12:35:43	957.70	805
12:37:57	957.70	681
12:37:57	957.70	806
12:41:25	958.00	746
12:41:25	958.00	805
12:43:40	957.80	138
12:43:40	957.80	801
12:43:43	957.80	527
12:47:39	958.00	40
12:47:39	958.00	101
12:47:39	958.00	279
12:47:39	958.00	421
12:47:39	958.00	801
12:47:52	957.90	251
12:48:03	957.90	556
12:49:30	958.00	17
12:49:30	957.90	739
12:49:30	958.00	806
12:49:30	958.00	806
12:51:44	957.90	186
12:51:44	957.90	618
12:51:44	957.90	868
12:56:11	957.90	45
12:56:11	957.90	124
12:56:11	957.90	167
12:56:11	957.90	635
12:56:11	957.90	802
12:56:11	957.90	804
12:56:11	957.90	804
12:59:44	957.90	250
12:59:44	957.90	309
12:59:44	957.90	497
12:59:44	957.90	553
12:59:44	957.90	655
12:59:44	957.90	768
13:02:15	958.10	57
13:02:15	958.10	745
13:02:15	958.10	827
13:04:39	957.70	787
13:04:39	957.70	800
13:06:07	957.90	84
13:06:07	957.90	804
13:06:16	957.90	539
13:08:31	958.00	745
13:08:31	958.00	805
13:12:30	957.80	308
13:12:30	957.80	498
13:12:30	957.80	806
13:15:50	958.00	705
13:15:50	958.00	800
13:18:41	957.90	131
13:18:41	957.90	805
13:18:41	957.90	805
13:19:15	957.80	4
13:23:59	957.80	174
13:23:59	957.80	298
13:23:59	957.80	508
13:23:59	957.80	806
13:29:31	957.90	29
13:29:31	957.90	62
13:29:31	957.90	203
13:29:31	957.90	306
13:29:31	957.90	501
13:29:31	957.90	600
13:29:31	957.90	803
13:29:31	957.90	807
13:30:31	957.90	43
13:30:31	957.90	93
13:30:31	957.90	310
13:30:31	957.90	321
13:30:31	957.90	446
13:30:31	957.90	490
13:32:10	958.00	568
13:34:06	958.00	236
13:34:06	958.00	697
13:34:40	958.20	185
13:34:40	958.20	804
13:35:17	958.20	803
13:35:37	958.20	147
13:35:37	958.20	225
13:35:37	958.20	236
13:36:00	958.20	254
13:36:00	958.20	435
13:36:00	958.20	713
13:36:00	958.20	801
13:36:07	958.20	6
13:36:07	958.20	547
13:37:33	958.10	782
13:37:33	958.10	806
13:40:14	958.30	163
13:40:14	958.30	639
13:40:14	958.30	886
13:41:05	958.10	1
13:41:05	958.10	12
13:41:05	958.10	311
13:41:05	958.10	496
13:41:05	958.10	806
13:43:08	958.00	350
13:43:08	958.00	804
13:44:57	958.00	310
13:44:57	958.00	800
13:44:57	958.00	946
13:50:12	957.90	801
13:51:16	957.90	163
13:51:16	957.90	801
13:51:16	957.90	803
13:51:18	957.90	799
13:54:25	957.80	769
13:54:25	957.80	803
13:55:23	958.10	85
13:55:23	958.10	85
13:55:23	958.10	139
13:55:23	958.10	720
13:55:23	958.10	720
13:59:34	958.00	108
13:59:34	958.00	244
13:59:34	958.00	562
13:59:34	958.00	806
14:00:15	957.90	243
14:00:15	957.90	559
14:00:15	957.90	850
14:03:41	957.80	54
14:03:41	957.80	107
14:03:41	957.80	341
14:03:41	957.80	359
14:03:41	957.80	458
14:03:41	957.80	541
14:03:41	957.80	700
14:03:41	957.80	802
14:06:01	957.90	8
14:06:01	957.90	173
14:06:01	957.90	802
14:06:01	957.90	802
14:07:54	958.10	97
14:07:54	958.10	132
14:10:24	958.50	2
14:10:24	958.50	450
14:10:24	958.50	804
14:12:08	958.60	15
14:12:08	958.60	291
14:12:08	958.60	372
14:12:08	958.60	443
14:12:08	958.60	571
14:12:08	958.60	792
14:12:08	958.60	803
14:14:14	958.40	807
14:14:21	958.40	598
14:17:28	958.90	74
14:17:28	958.90	726
14:17:28	958.90	862
14:20:01	958.80	254
14:20:01	958.80	381
14:20:01	958.80	423
14:20:01	958.80	617
14:22:49	958.80	3
14:22:49	958.80	51
14:22:49	958.80	274
14:22:49	958.80	753
14:22:57	958.80	392
14:23:52	958.90	800
14:23:52	958.90	959
14:27:44	958.80	76
14:27:44	958.80	138
14:27:44	958.80	663
14:27:44	958.80	711
14:27:44	958.80	801
14:27:44	958.80	801
14:27:51	958.60	228
14:28:01	958.60	116
14:28:01	958.60	579
14:28:06	958.60	228
14:28:06	958.60	419
14:29:30	958.70	90
14:29:30	958.70	208
14:29:30	958.70	592
14:29:30	958.70	800
14:30:08	958.30	87
14:30:08	958.30	155
14:30:08	958.30	559
14:30:08	958.30	646
14:30:38	957.70	696
14:30:38	957.70	804
14:31:27	957.90	137
14:31:27	957.90	189
14:31:27	957.90	199
14:31:27	957.90	222
14:31:27	957.90	350
14:31:27	957.90	467
14:32:31	958.00	804
14:33:10	958.10	804
14:34:14	958.10	23
14:34:14	958.10	53
14:34:14	958.10	55
14:34:14	958.10	119
14:34:14	958.10	801
14:34:14	958.10	802
14:34:14	958.10	802
14:34:15	958.10	134
14:34:15	958.10	156
14:34:15	958.10	682
14:35:16	958.20	77
14:35:16	958.20	725
14:35:16	958.20	805
14:35:16	958.20	807
14:35:16	958.20	807
14:35:53	958.00	339
14:35:53	958.00	465
14:35:53	958.00	754
14:37:39	958.10	364
14:37:39	958.10	802
14:37:47	958.10	440
14:38:12	958.10	444
14:38:12	958.10	802
14:38:27	958.10	38
14:38:27	958.10	78
14:38:27	958.10	235
14:38:27	958.10	280
14:38:27	958.10	524
14:38:27	958.10	804
14:39:56	958.10	15
14:39:56	958.10	50
14:39:56	958.10	111
14:39:56	958.10	150
14:39:56	958.10	150
14:39:56	958.10	150
14:39:56	958.10	450
14:39:56	958.10	806
14:39:56	958.10	807
14:41:40	958.70	123
14:41:40	958.70	684
14:42:24	958.80	97
14:42:24	958.80	807
14:42:41	958.60	79
14:43:12	958.60	29
14:43:12	958.60	728
14:43:15	958.60	807
14:43:19	958.60	21
14:43:19	958.60	131
14:43:19	958.60	171
14:43:19	958.60	171
14:43:19	958.60	610
14:43:20	958.60	635
14:45:10	958.80	41
14:45:10	958.80	84
14:45:10	958.80	180
14:45:10	958.80	366
14:45:10	958.80	436
14:45:10	958.80	501
14:45:10	958.80	718
14:45:10	958.80	1007
14:46:44	959.00	81
14:46:44	959.00	84
14:46:44	959.00	190
14:46:44	959.00	190
14:46:44	959.00	500
14:46:44	959.00	610
14:48:33	959.50	81
14:48:33	959.50	305
14:48:33	959.50	517
14:48:38	959.40	74
14:48:38	959.40	772
14:48:38	959.40	807
14:49:00	959.50	1
14:49:00	959.50	451
14:49:00	959.50	561
14:49:00	959.50	804
14:50:17	959.60	796
14:50:17	959.60	800
14:50:41	959.50	807
14:51:08	959.50	1
14:51:08	959.50	807
14:51:58	959.10	200
14:51:58	959.10	804
14:51:58	959.10	804
14:53:51	959.40	803
14:53:51	959.40	807
14:53:52	959.40	77
14:54:53	959.90	1057
14:55:07	959.80	60
14:55:07	959.80	162
14:55:07	959.80	243
14:55:07	959.80	503
14:55:07	959.80	740
14:55:07	959.80	800
14:55:07	959.80	806
14:57:06	959.70	802
14:57:26	959.70	620
14:57:51	959.70	28
14:57:51	959.70	182
14:57:51	959.70	251
14:57:51	959.70	806
14:58:16	959.70	66
14:58:16	959.70	600
14:59:06	959.60	604
14:59:06	959.60	805
14:59:51	959.50	350
14:59:51	959.50	454
14:59:52	959.50	46
14:59:52	959.50	102
14:59:52	959.50	804
15:01:03	959.50	34
15:01:03	959.50	40
15:01:03	959.50	56
15:01:03	959.50	56
15:01:03	959.50	90
15:01:03	959.50	110
15:01:03	959.50	126
15:01:03	959.50	600
15:01:03	959.50	694
15:01:03	959.50	802
15:01:03	959.50	806
15:03:20	959.60	457
15:03:20	959.60	1000
15:03:30	959.40	143
15:03:30	959.40	567
15:03:30	959.40	805
15:03:33	959.40	9
15:03:33	959.40	86
15:03:33	959.40	160
15:04:20	959.20	250
15:04:20	959.20	550
15:04:21	959.20	8
15:04:51	959.20	352
15:04:57	959.20	195
15:04:57	959.20	440
15:06:22	959.80	569
15:06:22	959.80	804
15:06:23	959.80	43
15:06:23	959.80	93
15:06:25	959.70	332
15:06:25	959.70	332
15:06:25	959.70	444
15:06:25	959.70	472
15:07:49	959.70	24
15:07:49	959.70	350
15:07:49	959.70	374
15:07:49	959.70	433
15:07:49	959.70	493
15:08:05	959.50	270
15:08:05	959.50	278
15:08:05	959.50	380
15:08:05	959.50	531
15:08:07	959.50	359
15:10:30	959.40	805
15:10:43	959.40	244
15:10:43	959.40	397
15:12:24	959.70	158
15:12:36	959.70	644
15:13:49	959.90	220
15:13:49	959.90	802
15:13:53	959.80	350
15:13:53	959.80	440
15:13:53	959.80	800
15:14:22	959.60	6
15:14:22	959.60	32
15:14:22	959.60	230
15:14:22	959.60	335
15:14:22	959.60	466
15:14:22	959.60	565
15:16:14	959.10	806
15:17:22	959.30	200
15:17:22	959.30	382
15:17:22	959.30	424
15:17:22	959.30	806
15:17:22	959.30	970
15:18:21	959.40	15
15:18:21	959.40	802
15:18:21	959.40	802
15:19:36	959.40	101
15:19:36	959.40	800
15:19:36	959.40	800
15:21:45	959.70	145
15:21:45	959.70	659
15:21:45	959.70	954
15:22:04	959.70	803
15:22:05	959.70	803
15:24:03	959.60	686
15:24:03	959.60	806
15:24:47	959.30	738
15:24:47	959.30	801
15:26:35	959.30	20
15:26:35	959.30	237
15:26:35	959.30	567
15:26:35	959.30	804
15:27:48	959.00	36
15:27:48	959.00	800
15:27:48	959.00	800
15:31:02	959.00	150
15:31:02	959.00	657
15:31:05	959.00	706
15:31:05	959.00	714
15:31:05	959.00	801
15:32:25	958.80	369
15:32:25	958.80	369
15:32:25	958.80	433
15:32:25	958.80	619
15:35:23	958.50	154
15:35:23	958.50	633
15:35:23	958.50	803
15:35:23	958.50	803
15:35:23	958.50	805
15:36:04	958.40	651
15:36:04	958.40	804
15:40:10	958.30	805
15:43:33	958.90	36
15:43:33	958.90	51
15:43:33	958.90	100
15:43:33	958.90	304
15:43:33	958.90	350
15:43:33	958.90	380
15:43:33	958.90	387
15:43:33	958.90	920
15:43:33	958.90	1458
15:43:33	958.90	1740
15:43:39	958.90	739
15:43:39	958.90	741
15:43:39	958.90	910
15:45:31	959.20	59
15:45:31	959.20	802
15:45:31	959.20	802
15:47:00	959.30	221
15:47:02	959.30	209
15:47:02	959.30	376
15:48:03	959.30	806
15:49:20	959.30	99
15:49:20	959.30	708
15:49:33	959.30	91
15:49:33	959.30	146
15:49:33	959.30	216
15:49:33	959.30	800
15:49:33	959.30	800
15:49:33	959.30	807
15:49:33	959.30	1634
15:51:18	958.90	802
15:51:18	958.90	871
15:52:58	958.40	197
15:52:58	958.40	608
15:53:00	958.40	101
15:53:00	958.40	183
15:53:00	958.40	701
15:53:00	958.40	704
15:53:00	958.40	804
15:55:13	958.80	122
15:55:13	958.80	266
15:55:13	958.80	420
15:55:34	958.70	20
15:55:34	958.70	26
15:55:34	958.70	26
15:55:34	958.70	116
15:55:34	958.70	340
15:55:34	958.70	344
15:55:34	958.70	695
15:55:34	958.70	778
15:55:34	958.70	804
15:57:06	958.80	425
15:57:06	958.80	1018
15:57:17	958.70	1
15:57:17	958.70	110
15:57:17	958.70	276
15:57:17	958.70	415
15:57:17	958.70	743
15:58:01	958.30	218
15:58:05	958.30	82
15:58:19	958.30	73
15:58:19	958.30	504
15:58:41	958.30	57
15:58:41	958.30	107
15:58:41	958.30	153
15:58:41	958.30	196
15:58:41	958.30	232
15:59:31	958.30	367
15:59:31	958.30	436
15:59:31	958.30	803
15:59:45	958.30	13
16:00:00	958.30	801
16:00:00	958.30	1032
16:01:45	958.20	275
16:01:48	958.20	36
16:01:48	958.20	161
16:01:48	958.20	530
16:01:48	958.20	805
16:02:50	958.30	124
16:02:50	958.30	669
16:02:50	958.30	803
16:03:37	958.20	661
16:03:37	958.20	806
16:03:59	958.00	800
16:04:30	958.00	604
16:04:42	958.00	196
16:04:54	958.00	13
16:04:54	958.00	184
16:05:38	957.90	13
16:05:38	957.90	49
16:05:38	957.90	101
16:05:38	957.90	306
16:05:38	957.90	375
16:05:38	957.90	643
16:06:02	957.70	802
16:07:40	957.90	36
16:07:40	957.90	480
16:07:40	957.90	769
16:07:40	957.90	800
16:07:45	957.90	100
16:08:20	958.20	783
16:08:20	958.20	807
16:08:37	957.90	21
16:08:37	957.90	66
16:08:37	957.90	784
16:08:38	957.90	105
16:08:53	957.70	739
16:09:18	957.80	592
16:09:18	957.80	806
16:09:30	957.80	66
16:09:30	957.80	214
16:10:45	957.80	89
16:10:45	957.80	185
16:10:45	957.80	303
16:10:45	957.80	411
16:10:45	957.80	803
16:13:28	958.30	731
16:13:28	958.30	802
16:14:20	958.40	186
16:14:20	958.40	608
16:14:20	958.40	615
16:15:22	958.40	2
16:15:22	958.40	16
16:15:22	958.40	20
16:15:22	958.40	103
16:15:22	958.40	375
16:15:22	958.40	412
16:15:22	958.40	698
16:15:22	958.40	805
16:15:28	958.40	703
16:16:14	958.50	33
16:16:21	958.50	108
16:16:21	958.50	769
16:16:21	958.50	802
16:16:57	958.50	639
16:16:57	958.50	800
16:18:12	958.50	163
16:18:12	958.50	357
16:18:12	958.50	443
16:18:12	958.50	632
16:18:12	958.50	801
16:18:12	958.50	806
16:18:12	958.50	806
16:18:12	958.50	1001
16:19:39	958.70	82
16:19:39	958.70	784
16:19:39	958.70	800
16:19:39	958.70	803
16:19:39	958.70	803
16:19:39	958.70	806
16:19:39	958.70	936
16:20:29	958.60	300
16:20:49	958.60	95
16:20:49	958.60	163
16:20:49	958.60	503
16:20:49	958.60	708
16:22:00	958.70	105
16:22:00	958.70	680
16:22:00	958.70	802
16:22:00	958.70	802
16:22:00	958.70	802
16:22:55	958.80	802
16:22:55	958.80	910
16:23:20	958.90	6
16:23:20	958.90	805
16:23:20	958.90	805
16:24:04	959.00	100
16:24:04	959.00	310
16:24:04	959.00	390
16:24:04	959.00	469
16:24:04	959.00	595
16:24:04	959.00	700
16:24:04	959.00	807
16:24:55	959.00	806
16:24:57	959.00	101
16:24:57	959.00	806
16:25:37	958.70	80
16:25:37	958.70	132
16:25:37	958.70	335
16:25:37	958.70	468
16:25:44	958.70	723
16:25:56	958.70	734
16:26:00	958.70	69
16:26:01	958.70	803
16:26:02	958.70	4
16:26:04	958.70	756
16:26:05	958.70	36
16:26:05	958.70	43
16:26:05	958.70	256
16:26:05	958.70	547
16:26:06	958.70	767
16:26:06	958.70	803
16:26:07	958.70	18
16:26:07	958.70	196
16:26:07	958.70	607
16:26:07	958.70	803
16:26:07	958.70	803
16:26:11	958.70	16
16:26:11	958.70	803

This announcement will also be available on National Grid's website at http://investors.nationalgrid.com/rns.aspx.

Enquiries to:

J Cooksey, Company Secretarial Assistant, (0207 004 3227).

This information is provided by RNS

The company news service from the London Stock Exchange

END

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