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Transaction in Own Shares

13th Feb 2017 17:37

RNS Number : 7728W

National Grid PLC

13 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:	13 February 2017
Number of Ordinary shares of 1117/43p each purchased:	500,000
Highest price paid per share (pence):	956.0204
Lowest price paid per share (pence):	956.0204
Volume weighted average price paid per share	956.0204

National Grid intends to hold the purchased shares in treasury. Following the purchase of these shares, National Grid holds 193,015,284 of its Ordinary shares in treasury and has 3,749,968,163 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 13 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
08:11:50	958.50	800
08:12:26	959.20	219
08:12:26	959.20	804
08:12:26	959.20	804
08:13:19	959.00	223
08:13:19	959.00	800
08:13:19	959.00	800
08:15:04	959.50	702
08:15:04	959.50	805
08:16:06	958.90	40
08:16:06	958.90	84
08:16:06	958.90	360
08:16:06	958.90	444
08:16:06	958.90	804
08:16:12	958.30	52
08:16:12	958.30	141
08:16:12	958.30	300
08:16:12	958.30	325
08:16:12	958.50	748
08:16:12	958.30	755
08:18:33	960.10	104
08:18:33	960.10	180
08:18:33	960.10	696
08:18:33	960.10	800
08:19:10	959.80	150
08:19:10	959.90	364
08:19:10	959.90	440
08:19:10	959.80	544
08:19:10	959.90	682
08:19:10	959.80	805
08:21:11	959.80	40
08:21:11	959.80	364
08:21:11	959.80	443
08:21:11	959.80	807
08:22:13	959.40	7
08:22:13	959.40	726
08:22:13	959.40	800
08:22:31	958.90	805
08:23:00	959.20	65
08:23:00	959.20	65
08:23:00	959.20	740
08:25:16	958.60	78
08:25:16	958.60	706
08:25:16	958.60	807
08:25:16	958.40	807
08:25:35	958.40	693
08:29:07	960.20	745
08:29:07	960.20	749
08:29:07	960.20	800
08:29:07	960.20	807
08:30:06	960.70	116
08:30:06	960.70	149
08:30:06	960.70	185
08:30:06	960.70	235
08:30:06	960.70	333
08:30:06	960.70	535
08:30:06	960.70	800
08:30:06	960.70	807
08:32:54	960.40	379
08:32:54	960.40	424
08:32:54	960.40	803
08:32:56	960.40	230
08:35:21	960.70	187
08:35:21	960.70	616
08:35:21	960.70	802
08:36:03	960.70	106
08:36:03	960.70	228
08:36:03	960.70	258
08:36:03	960.70	697
08:36:03	960.70	802
08:36:29	960.50	7
08:36:29	960.50	132
08:36:29	960.50	806
08:36:29	960.50	806
08:37:25	960.00	137
08:37:25	960.00	665
08:37:25	960.00	665
08:37:49	960.00	31
08:39:48	959.80	247
08:39:48	959.80	553
08:39:48	959.80	805
08:41:17	959.40	800
08:41:35	959.40	800
08:41:36	959.40	38
08:41:59	959.30	728
08:42:00	959.30	76
08:42:00	959.30	128
08:42:00	959.30	587
08:43:59	959.60	801
08:43:59	959.60	804
08:44:04	959.50	791
08:44:04	959.50	803
08:47:12	960.00	363
08:47:12	960.00	440
08:47:12	960.00	805
08:48:15	959.90	114
08:48:15	959.90	802
08:48:15	959.90	802
08:48:55	959.80	237
08:48:55	959.80	502
08:48:55	959.80	807
08:51:34	959.80	122
08:51:34	959.80	480
08:51:35	959.80	297
08:52:52	959.40	103
08:52:52	959.40	109
08:53:00	959.40	44
08:53:00	959.40	95
08:53:00	959.40	137
08:53:00	959.40	364
08:53:00	959.40	439
08:53:00	959.40	458
08:53:00	959.40	803
08:53:00	959.40	807
08:55:04	959.40	804
08:55:08	959.40	445
08:55:35	959.40	192
08:55:35	959.40	268
08:55:35	959.40	517
08:55:35	959.40	807
08:57:59	959.20	424
08:58:07	959.20	379
08:58:08	959.20	220
08:58:08	959.20	520
08:58:10	959.00	661
08:58:10	959.00	806
09:00:36	958.20	9
09:00:36	958.20	80
09:00:36	958.20	107
09:00:36	958.20	107
09:00:36	958.20	107
09:00:36	958.20	107
09:00:36	958.20	271
09:00:36	958.20	425
09:00:36	958.20	589
09:03:06	958.40	703
09:03:06	958.40	807
09:03:11	958.30	720
09:04:23	958.30	82
09:04:23	958.30	802
09:04:41	958.30	1
09:04:41	958.20	120
09:04:41	958.20	684
09:05:00	958.20	804
09:05:14	958.20	234
09:07:32	958.70	214
09:07:53	958.60	795
09:07:53	958.60	805
09:08:22	958.40	428
09:09:26	958.50	116
09:09:26	958.50	369
09:09:26	958.50	438
09:09:29	958.50	296
09:10:10	958.20	667
09:10:10	958.20	800
09:11:03	957.50	185
09:11:03	957.50	283
09:11:03	957.50	615
09:11:15	957.50	71
09:11:15	957.50	366
09:13:39	957.50	304
09:13:39	957.50	501
09:13:40	957.50	626
09:14:51	957.20	34
09:14:51	957.20	750
09:14:51	957.20	803
09:15:39	957.50	219
09:15:39	957.50	562
09:15:39	957.50	587
09:15:41	957.50	99
09:18:49	957.20	164
09:18:49	957.20	637
09:18:49	957.20	801
09:19:11	957.20	195
09:20:15	957.20	4
09:20:15	957.20	649
09:20:15	957.20	807
09:20:41	957.20	11
09:20:41	957.10	794
09:20:53	957.10	10
09:20:53	957.10	916
09:24:13	956.80	800
09:27:02	957.30	492
09:27:27	957.30	193
09:27:27	957.30	305
09:27:27	957.30	313
09:27:27	957.30	500
09:27:34	957.30	2
09:27:34	957.30	101
09:27:34	957.30	271
09:27:34	957.30	533
09:27:34	957.30	802
09:27:57	957.40	11
09:27:57	957.40	104
09:27:57	957.40	200
09:27:57	957.40	240
09:28:18	957.20	449
09:28:41	957.20	355
09:28:41	957.20	804
09:29:13	957.20	167
09:29:42	956.80	770
09:30:47	957.30	6
09:30:47	957.30	373
09:30:47	957.30	432
09:30:47	957.30	801
09:30:47	957.30	801
09:30:47	957.30	803
09:33:05	956.80	400
09:33:05	956.80	494
09:33:05	956.80	553
09:35:12	956.50	176
09:35:36	956.50	33
09:35:36	956.50	204
09:35:36	956.50	221
09:35:36	956.50	298
09:35:36	956.50	408
09:35:36	956.50	508
09:35:36	956.50	630
09:35:36	956.50	770
09:38:41	956.00	1000
09:38:44	955.90	100
09:38:44	955.90	100
09:38:44	955.90	703
09:38:44	955.90	703
09:38:48	955.90	72
09:39:17	955.80	366
09:39:17	955.80	436
09:39:17	955.80	689
09:42:25	955.80	87
09:42:25	955.80	100
09:42:25	955.80	137
09:42:25	955.80	237
09:42:25	955.90	294
09:42:25	955.80	326
09:42:25	955.80	476
09:42:25	955.90	507
09:42:25	955.90	895
09:42:28	955.80	373
09:43:32	955.80	5
09:43:32	955.80	102
09:45:36	955.90	803
09:46:20	956.00	11
09:46:20	956.00	100
09:46:20	956.00	703
09:46:28	955.80	800
09:46:29	955.80	800
09:46:31	955.80	108
09:49:19	955.70	804
09:49:20	955.70	42
09:49:20	955.70	112
09:49:20	955.70	381
09:49:20	955.70	381
09:50:50	955.30	239
09:50:50	955.30	807
09:50:54	955.30	613
09:52:46	954.80	16
09:54:43	955.00	95
09:54:43	955.00	706
09:54:43	955.00	801
09:55:18	955.00	41
09:55:18	955.00	100
09:56:56	955.10	87
09:56:56	955.10	98
09:56:56	955.10	128
09:56:56	955.10	333
09:56:56	955.10	371
09:56:56	955.10	715
09:57:45	954.90	800
09:57:46	954.90	19
09:57:46	954.90	800
10:01:02	955.10	217
10:01:12	955.10	589
10:01:25	955.10	400
10:02:26	955.30	112
10:02:26	955.30	355
10:02:45	955.10	807
10:03:02	955.10	667
10:03:59	954.80	803
10:04:05	954.80	95
10:04:05	954.80	600
10:07:46	954.60	295
10:07:46	954.60	512
10:07:51	954.60	785
10:07:56	954.60	6
10:07:56	954.60	22
10:07:56	954.60	88
10:10:57	955.50	549
10:11:27	955.70	802
10:11:41	955.70	802
10:12:21	955.70	135
10:12:21	955.70	205
10:12:21	955.70	295
10:12:21	955.70	512
10:17:59	955.90	16
10:17:59	955.90	22
10:17:59	955.90	785
10:17:59	955.90	785
10:17:59	955.90	801
10:17:59	955.90	807
10:18:00	955.90	37
10:18:00	955.90	246
10:18:22	955.80	97
10:18:22	955.80	100
10:18:22	955.80	114
10:18:22	955.80	265
10:18:22	955.80	280
10:18:22	955.80	710
10:22:39	955.40	1
10:22:39	955.40	2
10:22:39	955.40	239
10:22:39	955.40	800
10:22:50	955.40	300
10:23:07	955.40	263
10:25:00	955.40	178
10:25:00	955.40	801
10:25:05	955.40	159
10:25:05	955.40	312
10:25:05	955.40	489
10:27:41	955.50	370
10:27:41	955.50	437
10:27:41	955.50	773
10:29:13	955.10	109
10:29:13	955.10	803
10:29:13	955.10	803
10:31:42	954.70	54
10:31:42	954.70	350
10:31:42	954.70	413
10:31:42	954.70	752
10:35:11	954.70	420
10:35:11	954.70	802
10:35:41	954.70	380
10:35:41	954.70	802
10:35:56	954.70	520
10:36:34	954.70	166
10:36:34	954.70	280
10:37:19	954.70	77
10:37:19	954.70	214
10:37:19	954.70	235
10:37:49	954.70	532
10:37:51	954.70	55
10:41:00	954.70	705
10:41:44	954.80	217
10:41:44	954.80	443
10:41:44	954.80	807
10:44:07	955.00	105
10:44:21	955.00	699
10:44:51	955.00	458
10:45:30	955.00	155
10:45:30	955.00	346
10:45:30	955.00	675
10:45:30	955.00	805
10:46:13	954.90	217
10:46:13	954.90	227
10:46:13	954.90	575
10:46:13	954.90	802
10:49:28	955.30	22
10:49:28	955.30	805
10:49:28	955.30	805
10:51:32	955.20	627
10:51:35	955.20	100
10:51:41	955.20	39
10:51:41	955.20	76
10:54:47	955.40	101
10:54:47	955.40	123
10:54:47	955.40	414
10:54:47	955.40	806
10:55:52	955.20	599
10:57:20	955.60	58
10:57:20	955.60	58
10:57:20	955.60	116
10:57:20	955.60	577
10:57:20	955.60	581
10:57:20	955.60	686
10:57:20	955.60	805
11:01:10	956.40	574
11:01:10	956.40	883
11:03:32	956.20	135
11:03:32	956.20	807
11:03:32	956.20	807
11:03:53	956.10	1512
11:04:32	956.10	21
11:04:33	956.00	48
11:04:33	956.00	200
11:04:33	956.00	252
11:04:33	956.00	300
11:04:46	956.00	800
11:04:48	956.00	194
11:06:41	955.50	277
11:06:41	955.50	523
11:06:42	955.50	38
11:06:42	955.50	168
11:06:42	955.50	762
11:09:17	956.00	182
11:09:17	956.00	623
11:09:26	956.00	805
11:09:36	956.00	42
11:11:53	955.50	230
11:11:53	955.50	573
11:11:53	955.50	684
11:15:24	955.00	237
11:15:25	955.00	126
11:15:25	955.00	237
11:15:25	955.00	565
11:15:25	955.00	565
11:16:50	954.80	177
11:16:50	954.80	206
11:16:50	954.80	276
11:16:50	954.80	319
11:16:50	954.80	801
11:21:06	954.90	32
11:21:06	954.90	32
11:21:06	954.90	626
11:21:06	954.90	800
11:23:01	954.50	273
11:23:01	954.50	507
11:23:01	954.50	842
11:23:04	954.50	184
11:25:50	955.20	292
11:25:50	955.20	511
11:25:50	955.20	803
11:30:05	955.40	74
11:30:05	955.40	180
11:30:05	955.40	627
11:30:05	955.40	807
11:33:28	956.30	318
11:33:28	956.30	384
11:33:28	956.30	800
11:35:19	957.00	101
11:35:19	957.00	228
11:35:19	957.00	700
11:35:19	957.00	801
11:38:20	957.00	276
11:38:20	957.00	531
11:38:21	957.00	807
11:38:56	957.00	176
11:39:49	956.60	100
11:39:49	956.60	100
11:40:05	956.60	100
11:40:06	956.60	5
11:40:06	956.60	95
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:06	956.60	100
11:40:07	956.60	100
11:40:08	956.60	297
11:44:07	956.30	132
11:44:07	956.30	801
11:44:07	956.30	801
11:46:12	956.10	4
11:46:12	956.10	799
11:46:12	956.10	803
11:46:13	956.10	18
11:52:00	956.70	277
11:52:00	956.70	277
11:52:00	956.70	529
11:52:00	956.60	600
11:52:00	956.70	634
11:52:00	956.60	801
11:52:06	956.60	79
11:54:35	957.00	184
11:54:36	957.00	1
11:54:36	957.00	84
11:55:23	957.00	264
11:55:23	957.00	528
11:55:23	957.00	538
11:56:45	956.50	250
11:57:01	956.50	557
11:57:01	956.50	807
11:57:30	956.50	75
11:59:30	956.00	373
11:59:47	956.20	82
11:59:47	956.20	103
11:59:47	956.20	700
12:03:31	956.10	262
12:03:31	956.10	304
12:03:31	956.10	497
12:03:31	956.10	801
12:03:51	956.00	806
12:04:53	955.80	1533
12:08:03	955.90	79
12:08:03	955.90	204
12:08:03	955.90	722
12:08:03	955.90	801
12:10:24	955.70	125
12:10:24	955.70	338
12:10:24	955.70	396
12:10:24	955.70	404
12:10:24	955.70	462
12:13:01	955.50	2
12:13:01	955.50	700
12:13:01	955.50	806
12:14:12	955.50	803
12:14:13	955.50	699
12:19:19	955.50	39
12:19:19	955.50	97
12:19:19	955.50	764
12:19:19	955.50	780
12:19:19	955.50	801
12:23:55	955.90	425
12:24:10	955.90	100
12:24:37	956.00	100
12:24:37	956.00	421
12:24:37	956.00	444
12:25:29	955.90	276
12:26:25	955.90	4
12:26:25	955.90	40
12:26:25	955.90	101
12:26:25	955.90	664
12:26:25	955.90	764
12:26:25	955.90	800
12:27:24	955.60	27
12:27:24	955.60	113
12:27:24	955.50	644
12:27:24	955.60	688
12:27:24	955.60	801
12:32:11	956.00	76
12:32:11	956.00	117
12:32:11	956.00	807
12:32:11	956.00	807
12:35:49	955.80	86
12:35:49	955.70	138
12:35:49	955.80	145
12:35:49	955.80	363
12:35:49	955.80	439
12:35:49	955.80	802
12:36:11	955.70	24
12:36:11	955.70	663
12:36:11	955.70	801
12:39:37	955.70	763
12:39:37	955.70	807
12:42:48	957.30	975
12:44:03	957.00	188
12:44:03	957.00	188
12:44:03	957.00	190
12:44:03	957.00	230
12:44:03	957.00	425
12:44:03	957.00	470
12:44:03	957.00	803
12:44:03	957.00	806
12:45:48	956.90	19
12:45:48	956.90	32
12:45:48	956.90	787
12:45:48	956.90	806
12:49:51	957.00	126
12:49:51	957.00	803
12:49:51	957.00	803
12:51:01	956.50	355
12:51:01	956.50	445
12:51:01	956.50	729
12:51:15	956.50	30
12:53:26	956.40	50
12:53:26	956.40	50
12:53:26	956.40	144
12:53:26	956.40	160
12:53:26	956.40	501
12:53:26	956.40	755
12:53:35	956.40	100
12:54:13	956.40	35
12:57:00	956.50	786
12:57:54	956.70	805
12:58:04	956.70	160
12:58:05	956.60	770
12:58:05	956.60	802
13:00:33	956.70	43
13:00:33	956.70	166
13:00:33	956.70	804
13:01:04	956.60	37
13:01:04	956.60	45
13:01:04	956.70	531
13:01:11	956.60	721
13:01:11	956.60	779
13:03:21	956.20	131
13:03:25	956.20	200
13:03:30	956.20	235
13:04:00	956.20	240
13:04:38	956.20	247
13:04:38	956.20	365
13:04:43	956.20	194
13:04:43	956.20	240
13:07:26	956.60	14
13:07:26	956.60	24
13:07:26	956.60	214
13:07:26	956.60	249
13:07:26	956.60	530
13:07:26	956.60	530
13:10:08	956.50	236
13:10:11	956.50	126
13:10:11	956.50	570
13:10:11	956.50	627
13:11:44	956.20	73
13:11:44	956.20	645
13:11:44	956.20	800
13:15:06	956.30	15
13:15:06	956.30	203
13:15:06	956.30	505
13:15:06	956.30	792
13:16:51	956.10	516
13:16:52	956.10	290
13:16:52	956.10	806
13:17:49	956.10	21
13:17:49	956.10	146
13:21:42	955.90	803
13:21:42	955.90	941
13:25:00	955.90	166
13:25:00	955.90	224
13:25:00	955.90	497
13:25:00	955.90	578
13:26:52	955.60	125
13:26:52	955.60	805
13:26:52	955.60	805
13:30:58	955.60	28
13:30:58	955.60	37
13:30:58	955.60	59
13:30:58	955.60	83
13:30:58	955.60	296
13:30:58	955.60	509
13:30:58	955.60	804
13:30:58	955.60	804
13:30:58	955.60	805
13:33:10	955.20	99
13:33:39	955.20	705
13:33:45	955.20	488
13:33:49	955.20	135
13:33:49	955.20	148
13:34:02	955.10	28
13:34:02	955.10	806
13:34:02	955.10	806
13:36:11	954.70	143
13:36:11	954.70	155
13:36:11	954.70	506
13:36:11	954.70	748
13:37:15	954.00	799
13:37:37	954.00	5
13:37:37	954.00	280
13:37:37	954.00	415
13:38:06	953.80	802
13:39:42	954.40	164
13:39:42	954.40	802
13:41:10	954.10	78
13:41:10	954.10	142
13:41:10	954.10	801
13:41:10	954.10	801
13:44:12	954.50	5
13:44:12	954.50	720
13:44:12	954.50	801
13:46:02	954.30	101
13:46:02	954.30	699
13:46:24	954.30	758
13:47:35	953.90	306
13:47:35	953.90	368
13:47:35	953.90	806
13:51:04	953.00	47
13:51:04	953.00	48
13:51:04	953.00	322
13:51:04	953.00	484
13:51:04	953.00	806
13:52:49	952.60	800
13:52:51	952.60	197
13:52:51	952.60	800
13:55:42	952.90	302
13:55:42	952.90	503
13:55:42	952.90	503
13:56:05	952.90	220
13:56:05	952.90	302
13:59:25	952.20	401
13:59:35	952.20	405
13:59:35	952.20	757
14:02:37	953.00	197
14:02:37	953.00	321
14:02:37	953.00	327
14:02:37	953.00	608
14:02:37	953.00	618
14:02:37	953.00	631
14:02:37	953.00	807
14:05:22	953.20	160
14:05:22	953.20	656
14:05:22	953.20	805
14:08:34	954.20	27
14:08:34	954.30	52
14:08:34	954.20	156
14:08:34	954.20	248
14:08:34	954.20	400
14:08:34	954.20	606
14:08:34	954.30	804
14:08:34	954.30	804
14:10:15	954.10	446
14:11:51	954.30	178
14:11:51	954.30	211
14:11:51	954.30	398
14:11:51	954.30	591
14:14:16	954.90	655
14:14:16	954.90	803
14:15:07	955.00	430
14:15:18	955.00	148
14:15:18	955.00	223
14:15:18	955.00	801
14:15:43	955.00	238
14:18:34	954.80	165
14:18:34	954.80	214
14:18:34	954.80	586
14:18:34	954.80	800
14:23:25	956.00	55
14:23:25	956.00	199
14:23:25	956.00	745
14:23:25	956.00	800
14:23:49	956.30	78
14:23:49	956.30	652
14:23:49	956.30	805
14:24:12	956.00	337
14:24:12	956.00	380
14:24:36	956.00	87
14:24:39	956.00	27
14:24:39	956.00	804
14:25:52	956.30	802
14:25:52	956.30	805
14:29:00	956.80	32
14:29:00	956.80	147
14:29:00	956.80	199
14:29:00	956.80	208
14:29:00	956.80	447
14:29:00	956.80	802
14:29:00	956.80	802
14:29:00	956.80	802
14:31:01	957.90	70
14:31:01	957.80	181
14:31:01	957.80	625
14:31:01	957.90	801
14:31:01	957.90	801
14:31:01	957.80	997
14:31:45	958.10	294
14:31:45	958.10	510
14:31:45	958.10	757
14:32:11	958.20	145
14:32:11	958.20	800
14:32:11	958.20	800
14:33:22	957.70	402
14:33:29	957.70	398
14:33:30	957.70	26
14:33:30	957.70	704
14:34:11	957.50	748
14:34:11	957.50	803
14:35:31	957.00	760
14:35:31	957.00	800
14:36:20	956.50	170
14:36:26	956.50	100
14:36:26	956.50	100
14:36:26	956.50	100
14:36:26	956.50	100
14:36:26	956.50	100
14:36:26	956.50	100
14:36:26	956.50	535
14:36:44	956.50	274
14:36:44	956.50	405
14:37:15	956.50	432
14:37:26	956.50	101
14:37:26	956.50	144
14:37:32	956.50	63
14:37:32	956.50	807
14:38:02	956.30	789
14:38:18	956.30	11
14:38:18	956.30	134
14:38:18	956.30	285
14:38:18	956.30	287
14:38:54	956.40	3
14:38:54	956.40	12
14:38:54	956.40	266
14:38:54	956.40	537
14:38:54	956.40	806
14:38:55	956.40	60
14:40:57	956.20	51
14:40:57	956.20	171
14:40:57	956.20	171
14:40:57	956.20	636
14:40:57	956.20	636
14:41:06	956.10	84
14:41:06	956.10	629
14:41:06	956.10	720
14:42:44	955.80	295
14:42:47	955.80	52
14:42:47	955.80	80
14:42:47	955.80	458
14:42:47	955.80	653
14:43:23	955.70	152
14:43:23	955.70	650
14:43:24	955.70	10
14:43:24	955.70	73
14:43:24	955.70	719
14:43:53	955.70	144
14:45:03	955.70	801
14:45:05	955.70	90
14:45:05	955.70	113
14:45:05	955.70	801
14:46:40	955.20	423
14:47:15	955.30	19
14:47:15	955.30	69
14:47:15	955.30	171
14:47:15	955.30	230
14:47:15	955.30	803
14:47:15	955.30	803
14:47:18	955.30	412
14:47:37	955.30	52
14:47:37	955.30	220
14:48:23	955.30	805
14:48:33	955.30	439
14:50:48	955.80	53
14:50:48	955.80	63
14:50:48	955.80	292
14:50:48	955.80	293
14:50:48	955.80	314
14:50:48	955.80	324
14:50:48	955.80	377
14:50:48	955.80	429
14:50:48	955.80	659
14:50:48	955.80	806
14:51:50	955.70	806
14:52:56	956.00	356
14:52:56	956.00	450
14:52:57	956.00	155
14:52:57	956.00	163
14:52:57	956.00	285
14:52:57	956.00	358
14:53:13	956.00	109
14:53:13	956.00	306
14:53:13	956.00	500
14:53:15	955.90	758
14:53:15	955.90	803
14:54:07	955.50	170
14:54:07	955.50	592
14:54:07	955.50	804
14:55:33	955.40	315
14:55:33	955.40	488
14:55:37	955.40	24
14:55:37	955.40	303
14:55:37	955.40	500
14:56:44	955.20	15
14:56:44	955.20	787
14:57:04	955.20	20
14:57:04	955.20	166
14:57:04	955.20	802
14:57:26	954.70	631
14:57:26	954.70	807
14:58:23	954.40	31
14:59:30	954.80	804
14:59:30	954.80	804
14:59:32	954.80	67
14:59:32	954.80	806
14:59:34	954.80	650
15:00:33	956.10	32
15:00:33	956.10	142
15:00:33	956.10	234
15:00:33	956.10	234
15:00:33	956.10	427
15:00:33	956.10	661
15:02:00	955.60	805
15:02:43	955.70	10
15:02:43	955.70	98
15:02:43	955.70	797
15:02:43	955.70	807
15:03:30	955.60	783
15:03:47	955.40	657
15:03:47	955.40	804
15:05:24	955.50	200
15:05:25	955.50	601
15:05:25	955.50	616
15:05:30	955.50	100
15:06:35	955.90	21
15:06:35	955.90	87
15:06:35	955.90	92
15:06:35	955.90	623
15:06:35	955.90	802
15:06:58	955.70	170
15:06:58	955.70	170
15:06:58	955.70	170
15:06:58	955.70	630
15:07:00	955.70	300
15:07:16	955.70	160
15:07:16	955.70	255
15:07:22	955.50	2
15:07:22	955.50	794
15:08:01	955.50	6
15:08:01	955.50	63
15:08:01	955.50	147
15:08:01	955.50	584
15:09:27	955.80	518
15:09:31	955.80	8
15:09:31	955.80	280
15:09:45	955.80	448
15:09:51	955.80	18
15:09:51	955.80	358
15:11:05	955.90	220
15:11:05	955.90	400
15:11:05	955.90	407
15:11:05	955.90	807
15:12:01	955.60	384
15:12:01	955.60	421
15:12:01	955.60	564
15:12:05	955.60	201
15:12:05	955.60	241
15:12:06	955.60	29
15:14:17	955.30	803
15:15:29	955.80	803
15:15:31	955.80	153
15:15:58	955.80	791
15:15:58	955.80	804
15:17:51	955.80	19
15:17:51	955.80	54
15:17:51	955.80	91
15:17:51	955.80	118
15:17:51	955.80	146
15:17:51	955.80	162
15:17:51	955.80	183
15:17:51	955.80	220
15:17:51	955.80	749
15:18:00	955.80	35
15:18:00	955.80	79
15:18:00	955.80	665
15:18:00	955.80	684
15:19:55	956.00	714
15:19:55	956.00	806
15:19:55	956.00	807
15:19:55	956.00	826
15:21:19	955.90	100
15:21:19	955.90	626
15:21:20	955.90	75
15:21:22	955.90	646
15:23:40	955.90	38
15:23:40	955.90	801
15:23:40	955.90	801
15:24:50	955.90	229
15:24:50	955.90	487
15:24:50	955.90	805
15:25:36	955.60	334
15:25:36	955.60	472
15:26:00	955.60	440
15:26:23	955.60	290
15:26:23	955.60	803
15:26:23	955.60	803
15:26:24	955.60	31
15:28:54	955.90	772
15:28:54	955.90	803
15:29:19	955.80	23
15:29:19	955.80	125
15:29:19	955.80	801
15:29:19	955.80	801
15:31:04	955.30	62
15:31:04	955.30	743
15:31:04	955.30	805
15:33:12	954.90	291
15:33:18	954.90	38
15:33:18	954.90	38
15:33:18	954.90	101
15:33:18	954.90	413
15:33:18	954.90	767
15:33:19	954.90	13
15:34:14	955.20	179
15:34:15	955.20	622
15:34:17	955.20	655
15:34:52	955.30	807
15:34:56	955.30	477
15:35:16	955.30	308
15:35:47	955.30	251
15:35:59	955.30	509
15:36:08	955.30	40
15:36:08	955.30	115
15:36:08	955.30	661
15:37:24	955.00	5
15:37:42	955.00	429
15:38:03	955.30	16
15:38:03	955.30	343
15:38:03	955.30	443
15:38:03	955.30	689
15:38:14	955.00	156
15:38:14	955.00	217
15:38:14	955.00	807
15:38:16	955.00	134
15:39:25	954.80	533
15:40:54	955.10	107
15:40:54	955.10	802
15:41:39	955.40	348
15:41:39	955.40	452
15:41:39	955.40	803
15:42:02	955.40	192
15:42:02	955.40	800
15:42:03	955.40	23
15:42:03	955.40	30
15:42:03	955.40	487
15:42:46	955.40	443
15:42:51	955.40	358
15:42:51	955.40	935
15:45:25	955.00	459
15:45:31	955.10	283
15:45:45	955.10	453
15:45:46	955.10	64
15:45:46	955.10	486
15:45:48	955.00	648
15:45:48	955.00	806
15:48:35	954.90	252
15:49:44	955.30	792
15:49:44	955.30	806
15:50:28	955.40	83
15:50:28	955.40	233
15:50:28	955.40	274
15:50:28	955.40	528
15:50:28	955.40	801
15:50:28	955.40	801
15:50:28	955.40	802
15:50:28	955.40	802
15:50:28	955.40	802
15:52:41	955.30	109
15:52:41	955.30	805
15:52:41	955.30	805
15:53:28	955.00	107
15:53:30	955.00	48
15:53:30	955.00	203
15:53:30	955.00	227
15:53:30	955.00	308
15:53:30	955.00	344
15:53:30	955.00	604
15:55:36	955.10	268
15:55:36	955.10	300
15:55:36	955.10	501
15:55:36	955.10	504
15:55:38	955.00	800
15:55:49	955.00	433
15:56:40	955.00	344
15:56:42	955.00	641
15:56:42	955.00	806
15:58:38	954.90	178
15:58:38	954.90	221
15:58:38	954.90	477
15:58:38	954.90	597
15:58:38	954.90	804
15:58:38	954.90	806
16:00:00	954.50	804
16:00:00	954.50	804
16:00:03	954.50	122
16:01:13	954.50	801
16:01:52	954.50	801
16:01:52	954.50	801
16:01:54	954.50	29
16:01:54	954.50	41
16:01:54	954.50	93
16:01:54	954.50	801
16:02:43	954.50	580
16:02:43	954.50	802
16:02:44	954.50	176
16:03:56	953.90	802
16:03:56	953.90	1050
16:04:35	953.60	799
16:04:35	953.60	803
16:05:42	953.60	803
16:05:53	953.60	466
16:06:09	953.60	246
16:06:23	953.60	213
16:06:24	953.60	461
16:06:28	953.60	131
16:06:28	953.60	384
16:06:28	953.60	398
16:07:11	953.40	43
16:07:11	953.40	51
16:07:11	953.40	401
16:07:11	953.40	402
16:07:11	953.40	803
16:09:09	953.40	395
16:09:10	953.40	9
16:09:10	953.40	216
16:09:10	953.40	410
16:09:10	953.40	589
16:09:44	953.90	260
16:09:54	953.90	128
16:09:54	953.90	147
16:09:54	953.90	253
16:09:54	953.90	415
16:10:43	953.90	406
16:10:43	953.90	646
16:10:44	953.90	26
16:10:44	953.90	223
16:10:44	953.90	780
16:11:02	953.90	497
16:11:12	953.90	220
16:11:12	953.90	305
16:11:12	953.90	802
16:12:08	953.70	801
16:12:08	953.70	801
16:12:13	953.70	205
16:13:28	953.70	802
16:13:28	953.70	802
16:13:30	953.70	46
16:14:00	953.60	80
16:14:00	953.60	805
16:14:01	953.60	248
16:14:01	953.60	326
16:14:36	953.40	420
16:14:42	953.40	48
16:14:42	953.40	383
16:15:05	953.40	215
16:15:05	953.40	393
16:15:33	953.40	32
16:15:34	953.40	340
16:15:34	953.40	416
16:15:38	953.40	19
16:15:47	953.40	201
16:15:47	953.40	275
16:15:47	953.40	532
16:16:07	953.20	122
16:16:07	953.20	220
16:16:07	953.20	220
16:16:07	953.20	582
16:16:07	953.20	582
16:17:11	953.50	804
16:17:42	953.60	804
16:17:57	953.60	1
16:17:57	953.60	793
16:17:57	953.60	805
16:18:44	953.60	31
16:18:44	953.60	180
16:18:44	953.60	804
16:18:44	953.60	804
16:18:54	953.60	149
16:18:58	953.60	651
16:19:52	953.80	763
16:19:52	953.80	807
16:20:04	953.60	666
16:20:48	953.80	673
16:20:48	953.80	803
16:20:48	953.80	804
16:20:48	953.80	1001
16:22:23	953.70	217
16:22:23	953.70	435
16:22:23	953.70	807
16:23:01	954.00	791
16:23:01	954.00	801
16:23:09	953.90	179
16:23:09	953.90	247
16:23:09	953.90	623
16:23:09	953.90	802
16:24:10	953.90	211
16:24:10	953.90	271
16:24:10	953.90	319
16:24:10	953.90	662
16:24:49	953.90	283
16:24:55	954.00	1760
16:25:16	953.90	101
16:25:16	953.90	204
16:25:16	953.90	318
16:25:16	953.90	805
16:26:59	954.20	114
16:26:59	954.20	499
16:26:59	954.20	500
16:26:59	954.20	500
16:26:59	954.20	930
16:26:59	954.20	1700
16:35:19	955.10	492
16:35:19	955.10	696
16:35:19	955.10	6186

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

POSOKNDNOBKDPBD

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