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United States Computers, Phones & Household Electronics

Super Micro Computer Inc (SMCI)

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Over the last 90 days, Super Micro Computer Inc. has seen significant insider selling activity, totaling over $12 million. Notably, Yih-Shyan W Liaw, a former director, has been involved in multiple proposed sales. There have been no reported insider purchases during this period. The stock has experienced a slight decline of 4.8% over the past 90 days.
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Ticker: SMCI Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
YIH-SHYAN W LIAW
Former Director
1 sale — total 741,957 USD
Proposed sale 26 May 2026
Value US$4,314,243.48 | Price 463.96 | Shares 28,563
Proposed sale 22 May 2026
Value US$2,664,593.73 | Price 95.40 | Shares 90,449
Proposed sale 20 May 2026
Value US$1,777,105.00 | Price 32.51 | Shares 54,670
Proposed sale 19 May 2026
Value US$622,500.00 | Price 31.13 | Shares 20,000
Proposed sale 18 May 2026
Value US$2,042,218.11 | Price 30.09 | Shares 67,879
Proposed sale 14 May 2026
Value US$997,501.00 | Price 33.25 | Shares 30,000
Proposed sale 13 May 2026
Value US$330,000.00 | Price 33.00 | Shares 10,000
Proposed sale 11 May 2026
Value US$355,500.00 | Price 35.55 | Shares 10,000
Proposed sale 11 May 2026
Value US$355,500.00 | Price 35.55 | Shares 10,000
Sale 26 Nov 2025
Value US$1,604,790.00 | Price 33.00 | Shares 48,630
Proposed sale 26 Nov 2025
Value US$1,604,790.00 | Price 33.00 | Shares 48,630
Sale 24 Nov 2025
Value US$1,868,220.91 | Price 32.83 | Shares 56,904
Proposed sale 24 Nov 2025
Value US$1,868,215.22 | Price 32.83 | Shares 56,904
Planned sale 15 Sep 2025
Value US$1,128,500.00 | Price 45.14 | Shares 25,000
Planned sale 3 Sep 2025
Value US$12,255.99 | Price 40.85 | Shares 300
Planned sale 3 Sep 2025
Value US$995,024.68 | Price 40.28 | Shares 24,700
Proposed sale 3 Sep 2025
Value US$2,039,000.00 | Price 40.78 | Shares 50,000
Sale 22 Aug 2025
Value US$1,755,200.00 | Price 43.88 | Shares 40,000
Proposed sale 22 Aug 2025
Value US$1,755,324.00 | Price 43.88 | Shares 40,000
Proposed sale 28 Jul 2025
Value US$12,000,200.00 | Price 60.00 | Shares 200,000
Planned sale 18 Jun 2025
Value US$13,500,000.00 | Price 45.00 | Shares 300,000
Planned sale 18 Jun 2025
Value US$13,500,000.00 | Price 45.00 | Shares 300,000
Proposed sale 18 Jun 2025
Value US$13,362,186.11 | Price 44.54 | Shares 300,000
Sale 20 May 2025
Value US$2,949,494.10 | Price 44.02 | Shares 67,000
Proposed sale 20 May 2025
Value US$2,949,494.10 | Price 44.02 | Shares 67,000
Sale 14 May 2025
Value US$697,399.52 | Price 45.56 | Shares 15,306
Sale 14 May 2025
Value US$8,307,222.14 | Price 44.98 | Shares 184,694
Sale 14 May 2025
Value US$682,093.52 | Price 44.56 | Shares 15,306
Sale 14 May 2025
Value US$8,307,222.14 | Price 44.98 | Shares 184,694
Sale 14 May 2025
Value US$1,302,424.00 | Price 45.86 | Shares 28,400
Proposed sale 14 May 2025
Value US$1,302,425.11 | Price 45.86 | Shares 28,400
Proposed sale 14 May 2025
Value US$9,098,000.00 | Price 45.49 | Shares 200,000
Sale 28 Feb 2025
Value US$251,101.00 | Price 42.85 | Shares 5,860
Sale 28 Feb 2025
Value US$577,456.00 | Price 42.46 | Shares 13,600
Proposed sale 28 Feb 2025
Value US$828,567.86 | Price 42.58 | Shares 19,460
Sale 26 Feb 2025
Value US$2,322,566.10 | Price 50.17 | Shares 46,293
Proposed sale 26 Feb 2025
Value US$2,314,650.00 | Price 50.00 | Shares 46,293
Sale 26 Feb 2025
Value US$2,322,566.10 | Price 50.17 | Shares 46,293
Sale 26 Feb 2025
Value US$3,620,712.48 | Price 50.48 | Shares 71,720
Proposed sale 26 Feb 2025
Value US$3,620,715.06 | Price 50.48 | Shares 71,720
Planned sale 3 Jun 2024
Value US$240,600.00 | Price 802.00 | Shares 300
Proposed sale 3 Jun 2024
Value US$240,600.00 | Price 802.00 | Shares 300
Sale 30 May 2024
Value US$419,585.60 | Price 839.17 | Shares 500
Proposed sale 30 May 2024
Value US$419,585.60 | Price 839.17 | Shares 500
Planned sale 1 May 2024
Value US$233,208.00 | Price 777.36 | Shares 300
Proposed sale 1 May 2024
Value US$233,208.00 | Price 777.36 | Shares 300
Planned sale 29 Apr 2024
Value US$26,825.14 | Price 894.17 | Shares 30
Planned sale 29 Apr 2024
Value US$14,280.00 | Price 892.50 | Shares 16
Planned sale 29 Apr 2024
Value US$12,474.98 | Price 891.07 | Shares 14
Planned sale 29 Apr 2024
Value US$28,469.92 | Price 889.69 | Shares 32
Planned sale 29 Apr 2024
Value US$14,214.40 | Price 888.40 | Shares 16
Planned sale 29 Apr 2024
Value US$28,389.92 | Price 887.19 | Shares 32
Planned sale 29 Apr 2024
Value US$28,257.28 | Price 883.04 | Shares 32
Planned sale 29 Apr 2024
Value US$14,072.80 | Price 879.55 | Shares 16
Planned sale 29 Apr 2024
Value US$14,050.24 | Price 878.14 | Shares 16
Planned sale 29 Apr 2024
Value US$28,075.04 | Price 877.35 | Shares 32
Planned sale 29 Apr 2024
Value US$28,011.04 | Price 875.35 | Shares 32
Planned sale 29 Apr 2024
Value US$13,976.00 | Price 873.50 | Shares 16
Planned sale 29 Apr 2024
Value US$13,956.80 | Price 872.30 | Shares 16
Planned sale 29 Apr 2024
Value US$27,834.40 | Price 869.83 | Shares 32
Planned sale 29 Apr 2024
Value US$13,865.60 | Price 866.60 | Shares 16
Planned sale 29 Apr 2024
Value US$13,832.96 | Price 864.56 | Shares 16
Planned sale 29 Apr 2024
Value US$13,735.84 | Price 858.49 | Shares 16
Planned sale 29 Apr 2024
Value US$27,356.48 | Price 854.89 | Shares 32
Planned sale 29 Apr 2024
Value US$13,568.16 | Price 848.01 | Shares 16
Planned sale 29 Apr 2024
Value US$13,490.08 | Price 843.13 | Shares 16
Planned sale 29 Apr 2024
Value US$13,466.24 | Price 841.64 | Shares 16
Planned sale 29 Apr 2024
Value US$15,954.60 | Price 839.72 | Shares 19
Planned sale 29 Apr 2024
Value US$12,555.09 | Price 837.01 | Shares 15
Planned sale 29 Apr 2024
Value US$13,373.92 | Price 835.87 | Shares 16
Planned sale 29 Apr 2024
Value US$12,465.24 | Price 831.02 | Shares 15
Planned sale 29 Apr 2024
Value US$26,825.14 | Price 894.17 | Shares 30
Planned sale 29 Apr 2024
Value US$14,280.00 | Price 892.50 | Shares 16
Planned sale 29 Apr 2024
Value US$12,474.98 | Price 891.07 | Shares 14
Planned sale 29 Apr 2024
Value US$28,469.92 | Price 889.69 | Shares 32
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
2026-05-26 2026-05-26 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
28,563
463.96
US$4,314,243 		28,563 463.96 US$4,314,243
2026-05-22 2026-05-22 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
90,449
95.40
US$2,664,594 		90,449 95.40 US$2,664,594
2026-05-20 2026-05-20 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
66,822
69.51
US$1,239,047 		66,822 69.51 US$1,239,047
2026-05-20 2026-05-19 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
20,000
31.13
US$622,500 		20,000 31.13 US$622,500
2026-05-18 2026-05-18 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
67,879
30.09
US$2,042,218 		67,879 30.09 US$2,042,218
2026-05-14 2026-05-14 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
30,000
33.25
US$997,501 		30,000 33.25 US$997,501
2026-05-13 2026-05-13 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
10,000
33.00
US$330,000 		10,000 33.00 US$330,000
2026-05-14 2026-05-11 PrS Proposed sale
YIH-SHYAN W LIAW

Former Director

Non-Executive Director
10,000
35.55
US$355,500 		10,000 35.55 US$355,500
2026-05-11 2026-05-11 PrS Proposed sale
YIH-SHYAN W LIAW

Director

Non-Executive Director
10,000
35.55
US$355,500 		10,000 35.55 US$355,500
2025-12-01 2025-11-26 S Sale
3.0
TUAN SHERMAN
Non-Executive Director
48,630 -19.0%
33.00
US$1,604,790 		48,630 -19.0% 33.00 US$1,604,790
2025-11-26 2025-11-26 PrS Proposed sale
3.0
Sherman Tuan

Board of Director

Non-Executive Director
48,630
33.00
US$1,604,790 		48,630 33.00 US$1,604,790
2025-11-26 2025-11-24 S Sale
3.1
KAO GEORGE

SVP, OPERATIONS

Officer
56,904 -29.7%
32.83
US$1,868,221 		56,904 -29.7% 32.83 US$1,868,221
2025-11-24 2025-11-24 PrS Proposed sale
3.1
GEORGE W KAO

Officer

Officer
56,904
32.83
US$1,868,215 		56,904 32.83 US$1,868,215
2025-09-17 2025-09-15 PlS Planned sale
1.3
WEIGAND DAVID E

SVP, Chief Financial Officer

Officer
25,000 -20.0%
45.14
US$1,128,500 		25,000 -20.0% 45.14 US$1,128,500
2025-09-05 2025-09-03 PlS Planned sale
1.3
WEIGAND DAVID E

SVP, Chief Financial Officer

Officer
300 -0.3%
40.85
US$12,256 		300 -0.3% 40.85 US$12,256
2025-09-05 2025-09-03 PlS Planned sale
1.3
WEIGAND DAVID E

SVP, Chief Financial Officer

Officer
24,700 -19.7%
40.28
US$995,025 		24,700 -19.7% 40.28 US$995,025
2025-09-03 2025-09-03 PrS Proposed sale
1.3
DAVID WEIGAND

Officer

Officer
50,000
40.78
US$2,039,000 		50,000 40.78 US$2,039,000
2025-08-26 2025-08-22 S Sale
3.1
KAO GEORGE

SVP, OPERATIONS

Officer
40,000 -64.7%
43.88
US$1,755,200 		40,000 -64.7% 43.88 US$1,755,200
2025-08-22 2025-08-22 PrS Proposed sale
3.1
GEORGE W KAO

Officer

Officer
40,000
43.88
US$1,755,324 		40,000 43.88 US$1,755,324
2025-07-28 2025-07-28 PrS Proposed sale
2.2
Liang Charles

Officer

Officer
200,000
60.00
US$12,000,200 		200,000 60.00 US$12,000,200
2025-06-20 2025-06-18 PlS Planned sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
300,000 -0.4%
45.00
US$13,500,000 		300,000 -0.4% 45.00 US$13,500,000
2025-06-20 2025-06-18 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
300,000 -0.4%
45.00
US$13,500,000 		300,000 -0.4% 45.00 US$13,500,000
2025-06-18 2025-06-18 PrS Proposed sale
2.2
Liang Charles

Officer

Officer
300,000
44.54
US$13,362,186 		300,000 44.54 US$13,362,186
2025-05-22 2025-05-20 S Sale
1.3
WEIGAND DAVID E

SVP, Chief Financial Officer

Officer
67,000 -43.1%
44.02
US$2,949,494 		67,000 -43.1% 44.02 US$2,949,494
2025-05-20 2025-05-20 PrS Proposed sale
1.3
DAVID E WEIGAND

Officer

Officer
67,000
44.02
US$2,949,494 		67,000 44.02 US$2,949,494
2025-05-16 2025-05-14 S Sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
15,306 -0.0%
45.56
US$697,400 		15,306 -0.0% 45.56 US$697,400
2025-05-16 2025-05-14 S Sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
184,694 -0.3%
44.98
US$8,307,222 		184,694 -0.3% 44.98 US$8,307,222
2025-05-16 2025-05-14 S Sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
15,306 -0.0%
44.56
US$682,094 		15,306 -0.0% 44.56 US$682,094
2025-05-16 2025-05-14 S Sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
184,694 -0.3%
44.98
US$8,307,222 		184,694 -0.3% 44.98 US$8,307,222
2025-05-16 2025-05-14 S Sale
3.1
KAO GEORGE

SVP, OPERATIONS

Officer
28,400 -57.9%
45.86
US$1,302,424 		28,400 -57.9% 45.86 US$1,302,424
2025-05-14 2025-05-14 PrS Proposed sale
3.1
KAO GEORGE

Officer

Officer
28,400
45.86
US$1,302,425 		28,400 45.86 US$1,302,425
2025-05-14 2025-05-14 PrS Proposed sale
2.2
CHIU-CHU LIU LIANG

Officer

Officer
200,000
45.49
US$9,098,000 		200,000 45.49 US$9,098,000
2025-03-04 2025-02-28 S Sale
2.1
BLAIR ROBERT L
Non-Executive Director
5,860 -100.0%
42.85
US$251,101 		5,860 -100.0% 42.85 US$251,101
2025-03-04 2025-02-28 S Sale
2.1
BLAIR ROBERT L
Non-Executive Director
13,600 -69.9%
42.46
US$577,456 		13,600 -69.9% 42.46 US$577,456
2025-02-28 2025-02-28 PrS Proposed sale
2.1
BLAIR ROBERT L

Director

Non-Executive Director
19,460
42.58
US$828,568 		19,460 42.58 US$828,568
2025-02-28 2025-02-26 S Sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
46,293 -100.0%
50.17
US$2,322,566 		46,293 -100.0% 50.17 US$2,322,566
2025-02-28 2025-02-26 S Sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
46,293 -100.0%
50.17
US$2,322,566 		46,293 -100.0% 50.17 US$2,322,566
2025-02-28 2025-02-26 S Sale
3.1
KAO GEORGE

SVP, OPERATIONS

Officer
71,720 -78.7%
50.48
US$3,620,712 		71,720 -78.7% 50.48 US$3,620,712
2025-02-26 2025-02-26 PrS Proposed sale
2.2
Liu Liang Chiu-Chu Sara

Officer

Officer
46,293
50.00
US$2,314,650 		46,293 50.00 US$2,314,650
2025-02-26 2025-02-26 PrS Proposed sale
3.1
KAO GEORGE

Officer

Officer
71,720
50.48
US$3,620,715 		71,720 50.48 US$3,620,715
2024-06-05 2024-06-03 PlS Planned sale
FAIRFAX DANIEL W
Non-Executive Director
300 -1.6%
802.00
US$240,600 		300 -1.6% 802.00 US$240,600
2024-06-03 2024-06-03 PrS Proposed sale
DANIEL FAIRFAX

Director

Non-Executive Director
300
802.00
US$240,600 		300 802.00 US$240,600
2024-06-03 2024-05-30 S Sale
1.8
LIU TALLY C
Non-Executive Director
500 -1.8%
839.17
US$419,586 		500 -1.8% 839.17 US$419,586
2024-05-30 2024-05-30 PrS Proposed sale
1.8
LIU TALLY C

Director

Non-Executive Director
500
839.17
US$419,586 		500 839.17 US$419,586
2024-05-03 2024-05-01 PlS Planned sale
FAIRFAX DANIEL W
Non-Executive Director
300 -1.5%
777.36
US$233,208 		300 -1.5% 777.36 US$233,208
2024-05-01 2024-05-01 PrS Proposed sale
DANIEL FAIRFAX

Director

Non-Executive Director
300
777.36
US$233,208 		300 777.36 US$233,208
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
30 -0.9%
894.17
US$26,825 		30 -0.9% 894.17 US$26,825
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.5%
892.50
US$14,280 		16 -0.5% 892.50 US$14,280
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
14 -0.4%
891.07
US$12,475 		14 -0.4% 891.07 US$12,475
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.9%
889.69
US$28,470 		32 -0.9% 889.69 US$28,470
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
888.40
US$14,214 		16 -0.4% 888.40 US$14,214
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.9%
887.19
US$28,390 		32 -0.9% 887.19 US$28,390
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.9%
883.04
US$28,257 		32 -0.9% 883.04 US$28,257
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
879.55
US$14,073 		16 -0.4% 879.55 US$14,073
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
878.14
US$14,050 		16 -0.4% 878.14 US$14,050
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.9%
877.35
US$28,075 		32 -0.9% 877.35 US$28,075
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.9%
875.35
US$28,011 		32 -0.9% 875.35 US$28,011
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
873.50
US$13,976 		16 -0.4% 873.50 US$13,976
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
872.30
US$13,957 		16 -0.4% 872.30 US$13,957
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.8%
869.83
US$27,834 		32 -0.8% 869.83 US$27,834
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
866.60
US$13,866 		16 -0.4% 866.60 US$13,866
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
864.56
US$13,833 		16 -0.4% 864.56 US$13,833
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
858.49
US$13,736 		16 -0.4% 858.49 US$13,736
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
32 -0.8%
854.89
US$27,356 		32 -0.8% 854.89 US$27,356
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
848.01
US$13,568 		16 -0.4% 848.01 US$13,568
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
843.13
US$13,490 		16 -0.4% 843.13 US$13,490
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
841.64
US$13,466 		16 -0.4% 841.64 US$13,466
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
19 -0.5%
839.72
US$15,955 		19 -0.5% 839.72 US$15,955
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
15 -0.4%
837.01
US$12,555 		15 -0.4% 837.01 US$12,555
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
16 -0.4%
835.87
US$13,374 		16 -0.4% 835.87 US$13,374
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liang Charles

President and CEO

Executive Director Large shareholder
15 -0.4%
831.02
US$12,465 		15 -0.4% 831.02 US$12,465
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
30 -0.9%
894.17
US$26,825 		30 -0.9% 894.17 US$26,825
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
16 -0.5%
892.50
US$14,280 		16 -0.5% 892.50 US$14,280
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
14 -0.4%
891.07
US$12,475 		14 -0.4% 891.07 US$12,475
2024-05-01 2024-04-29 PlS Planned sale
2.2
Liu Liang Chiu-Chu Sara
Non-Executive Director Large shareholder
32 -0.9%
889.69
US$28,470 		32 -0.9% 889.69 US$28,470
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