Average Insider

Where insiders trade, we follow

Insider Buy/Sell Ratio — Last 3 Months

Extreme outlier transactions (>3σ) are excluded.Show All Data
Ratio0.2:1
Daily Buy & Sell Volume

By Sector

By Industry

Hardware, Equipment & Parts
Buys26
Sells930
Buy $$25.06B
Sell $$770.41M
Ratio32.53:1
% Change vs. Prior
Ratio +1129.7%Value +1013.2%
Software - Infrastructure
Buys62
Sells3528
Buy $$51.04M
Sell $$5.04B
Ratio1:98.69
% Change vs. Prior
Ratio -47.9%Value +189.4%
Medical - Instruments & Supplies
Buys42
Sells105
Buy $$16.77M
Sell $$3.66B
Ratio1:218.18
% Change vs. Prior
Ratio +27.4%Value -52.3%
Semiconductors
Buys112
Sells1773
Buy $$3.11M
Sell $$2.96B
Ratio1:950.12
% Change vs. Prior
Ratio -73.4%Value +12.8%
Biotechnology
Buys380
Sells3223
Buy $$438.94M
Sell $$2.35B
Ratio1:5.35
% Change vs. Prior
Ratio -47.8%Value +13.2%
Oil & Gas Exploration & Production
Buys175
Sells109
Buy $$47.04M
Sell $$2.70B
Ratio1:57.33
% Change vs. Prior
Ratio +420.5%Value -20.2%
Software - Application
Buys273
Sells1646
Buy $$275.05M
Sell $$2.25B
Ratio1:8.18
% Change vs. Prior
Ratio -59.0%Value +30.5%
Engineering & Construction
Buys13
Sells248
Buy $$1.90M
Sell $$2.34B
Ratio1:1229.62
Computer Hardware
Buys3
Sells1651
Buy $$104.50K
Sell $$2.28B
Ratio1:21775.19
% Change vs. Prior
Ratio -88.7%Value +162.6%
Medical - Healthcare Information Services
Buys33
Sells226
Buy $$18.91M
Sell $$1.87B
Ratio1:99.02
% Change vs. Prior
Ratio -8.4%Value +6.6%
Rental & Leasing Services
Buys7
Sells128
Buy $$2.92M
Sell $$1.88B
Ratio1:643.56
Specialty Retail
Buys82
Sells981
Buy $$22.11M
Sell $$1.62B
Ratio1:73.25
% Change vs. Prior
Ratio -88.7%Value -11.5%
Shell Companies
Buys107
Sells303
Buy $$119.01M
Sell $$1.40B
Ratio1:11.75
Information Technology Services
Buys65
Sells224
Buy $$9.78M
Sell $$1.42B
Ratio1:145.12
Leisure
Buys29
Sells110
Buy $$7.63M
Sell $$1.29B
Ratio1:169.49

AMAZON COM INC (AMZN)

Garman Matthew S — CEO Amazon Web Services
May 21, 2026
Sale
Shares
433
Price
$265.64
Total Value
$115.02K
Shares Held After
14,159
% of Holdings
3.0%

AMAZON COM INC (AMZN)

Garman Matthew S — CEO Amazon Web Services
May 21, 2026
Sale
Shares
2,534
Price
$264.95
Total Value
$671.37K
Shares Held After
14,592
% of Holdings
14.8%

AMAZON COM INC (AMZN)

Garman Matthew S — CEO Amazon Web Services
May 21, 2026
Sale
Shares
3,689
Price
$264.03
Total Value
$974.01K
Shares Held After
17,126
% of Holdings
17.7%

AMAZON COM INC (AMZN)

Garman Matthew S — CEO Amazon Web Services
May 21, 2026
Sale
Shares
4,554
Price
$263.18
Total Value
$1.20M
Shares Held After
20,815
% of Holdings
18.0%

AMAZON COM INC (AMZN)

Garman Matthew S — CEO Amazon Web Services
May 21, 2026
Sale
Shares
4,257
Price
$261.93
Total Value
$1.12M
Shares Held After
25,369
% of Holdings
14.4%

Ainos, Inc. (AIMD)

lee ting-chuan — Director
May 21, 2026
Sale
Shares
9,000
Price
$1.56
Total Value
$14.04K
Shares Held After
926,707
% of Holdings
1.0%

FIVE STAR BANCORP (FSBC)

Lee Michael Eugene — SVP, Chief Regulatory Officer
May 21, 2026
Sale
Shares
867
Price
$41.23
Total Value
$35.75K
Shares Held After
32,764
% of Holdings
2.6%

Ceribell, Inc. (CBLL)

Blumberg Scott — Chief Financial Officer
May 21, 2026
Sale
Shares
1,387
Price
$18.00
Total Value
$24.97K
Shares Held After
147,683
% of Holdings
0.9%
May 21, 2026
Sale
Shares
2,128,025
Price
$14.69
Total Value
$31.27M
Shares Held After
751,744
% of Holdings
73.9%
May 21, 2026
Sale
Shares
100,720
Price
$14.69
Total Value
$1.48M
Shares Held After
35,580
% of Holdings
73.9%
May 21, 2026
Sale
Shares
2,262,112
Price
$14.69
Total Value
$33.24M
Shares Held After
7,554,800
% of Holdings
23.0%
May 21, 2026
Sale
Shares
390,066
Price
$14.69
Total Value
$5.73M
Shares Held After
137,795
% of Holdings
73.9%
May 21, 2026
Sale
Shares
1,432,671
Price
$14.69
Total Value
$21.05M
Shares Held After
4,784,711
% of Holdings
23.0%
May 21, 2026
Sale
Shares
100,350
Price
$14.69
Total Value
$1.47M
Shares Held After
35,450
% of Holdings
73.9%
May 21, 2026
Sale
Shares
106,336
Price
$14.69
Total Value
$1.56M
Shares Held After
37,564
% of Holdings
73.9%
May 21, 2026
Sale
Shares
55,939
Price
$14.69
Total Value
$821.93K
Shares Held After
19,761
% of Holdings
73.9%
May 21, 2026
Sale
Shares
8,300
Price
$14.70
Total Value
$122.01K
Shares Held After
0
% of Holdings
100.0%

Ceribell, Inc. (CBLL)

Chao Xingjuan — Director
May 21, 2026
Sale
Shares
6,030
Price
$18.00
Total Value
$108.54K
Shares Held After
830,317
% of Holdings
0.7%

ESS Tech, Inc. (GWH)

Goodman Kelly F. — Chief Strategy Officer and General Counsel
May 21, 2026
Sale
Shares
2,482
Price
$0.92
Total Value
$2.28K
Shares Held After
213,371
% of Holdings
1.1%

ESS Tech, Inc. (GWH)

Suhadolnik Kate Eileen — Chief Financial Officer
May 21, 2026
Sale
Shares
1,735
Price
$0.92
Total Value
$1.59K
Shares Held After
162,679
% of Holdings
1.1%

AMAZON COM INC (AMZN)

Herrington Douglas J — CEO Worldwide Amazon Stores
May 21, 2026
Sale
Shares
800
Price
$263.85
Total Value
$211.08K
Shares Held After
486,527
% of Holdings
0.2%

AMAZON COM INC (AMZN)

Herrington Douglas J — CEO Worldwide Amazon Stores
May 21, 2026
Sale
Shares
1,370
Price
$263.12
Total Value
$360.47K
Shares Held After
487,327
% of Holdings
0.3%

AMAZON COM INC (AMZN)

Herrington Douglas J — CEO Worldwide Amazon Stores
May 21, 2026
Sale
Shares
4,200
Price
$261.88
Total Value
$1.10M
Shares Held After
488,697
% of Holdings
0.9%

Chubb Ltd (CB)

ATIEH MICHAEL G — Director
May 21, 2026
Sale
Shares
578
Price
$329.53
Total Value
$190.47K
Shares Held After
40,014
% of Holdings
1.4%
May 21, 2026
Sale
Shares
53,880
Price
$70.71
Total Value
$3.81M
Shares Held After
522,376
% of Holdings
9.4%
May 21, 2026
Sale
Shares
1,000
Price
$195.37
Total Value
$195.37K
Shares Held After
4,053
% of Holdings
19.8%

Ceribell, Inc. (CBLL)

Woo Raymond — Chief Technology Officer
May 21, 2026
Sale
Shares
1,966
Price
$18.00
Total Value
$35.39K
Shares Held After
195,682
% of Holdings
1.0%

LIQUIDITY SERVICES INC (LQDT)

Weiskircher Steven — SVP & Chief Technology Officer
May 21, 2026
Sale
Shares
493
Price
$34.45
Total Value
$16.98K
Shares Held After
69,222
% of Holdings
0.7%

AMAZON COM INC (AMZN)

Jassy Andrew R — Director
May 21, 2026
Sale
Shares
300
Price
$265.61
Total Value
$79.68K
Shares Held After
2,205,766
% of Holdings
0.0%

AMAZON COM INC (AMZN)

Jassy Andrew R — Director
May 21, 2026
Sale
Shares
3,600
Price
$264.97
Total Value
$953.91K
Shares Held After
2,206,066
% of Holdings
0.2%

AMAZON COM INC (AMZN)

Jassy Andrew R — Director
May 21, 2026
Sale
Shares
5,667
Price
$263.95
Total Value
$1.50M
Shares Held After
2,209,666
% of Holdings
0.3%

AMAZON COM INC (AMZN)

Jassy Andrew R — Director
May 21, 2026
Sale
Shares
5,227
Price
$263.10
Total Value
$1.38M
Shares Held After
2,215,333
% of Holdings
0.2%

AMAZON COM INC (AMZN)

Jassy Andrew R — Director
May 21, 2026
Sale
Shares
5,206
Price
$261.95
Total Value
$1.36M
Shares Held After
2,220,560
% of Holdings
0.2%

Ceribell, Inc. (CBLL)

Manni Joseph S. — Chief Revenue Officer
May 21, 2026
Sale
Shares
1,378
Price
$18.00
Total Value
$24.80K
Shares Held After
56,291
% of Holdings
2.4%

Ceribell, Inc. (CBLL)

Foehr David — Senior VP, Finance and PAO
May 21, 2026
Sale
Shares
987
Price
$18.00
Total Value
$17.77K
Shares Held After
38,613
% of Holdings
2.5%
May 21, 2026
Sale
Shares
36,387
Price
$0.42
Total Value
$15.28K
Shares Held After
919,060
% of Holdings
3.8%

Liquidia Corp (LQDA)

SINGH RAMAN — Director
May 21, 2026
Sale
Shares
29,494
Price
$60.13
Total Value
$1.77M
Shares Held After
38,755
% of Holdings
43.2%

DEXCOM INC (DXCM)

SAYER KEVIN R — Director
May 21, 2026
Sale
Shares
26,759
Price
$72.00
Total Value
$1.93M
Shares Held After
382,482
% of Holdings
6.5%

Liquidia Corp (LQDA)

JEFFS ROGER — Director
May 21, 2026
Sale
Shares
25,000
Price
$61.13
Total Value
$1.53M
Shares Held After
1,098,095
% of Holdings
2.2%

Hilton Grand Vacations Inc. (HGV)

Corbin Charles R. Jr. — Senior Executive Vice President, General Counsel and Corporate Operations, and Secretary
May 21, 2026
Sale
Shares
11,405
Price
$47.03
Total Value
$536.38K
Shares Held After
68,615
% of Holdings
14.3%

Hilton Grand Vacations Inc. (HGV)

Corbin Charles R. Jr. — Senior Executive Vice President, General Counsel and Corporate Operations, and Secretary
May 21, 2026
Sale
Shares
21,502
Price
$48.00
Total Value
$1.03M
Shares Held After
80,020
% of Holdings
21.2%

IRON MOUNTAIN INC (IRM)

Borges Daniel — SVP & Chief Accounting Officer
May 21, 2026
Sale
Shares
7,189
Price
$125.50
Total Value
$902.22K
Shares Held After
0
% of Holdings
100.0%

AMAZON COM INC (AMZN)

Reynolds Shelley — Vice President
May 21, 2026
Sale
Shares
300
Price
$263.99
Total Value
$79.20K
Shares Held After
119,780
% of Holdings
0.2%

AMAZON COM INC (AMZN)

Reynolds Shelley — Vice President
May 21, 2026
Sale
Shares
463
Price
$263.25
Total Value
$121.88K
Shares Held After
120,080
% of Holdings
0.4%

AMAZON COM INC (AMZN)

Reynolds Shelley — Vice President
May 21, 2026
Sale
Shares
1,600
Price
$261.83
Total Value
$418.92K
Shares Held After
120,543
% of Holdings
1.3%
May 21, 2026
Sale
Shares
1,998
Price
$9.95
Total Value
$19.88K
Shares Held After
13,246
% of Holdings
13.1%

AMAZON COM INC (AMZN)

Zapolsky David — Senior Vice President
May 21, 2026
Sale
Shares
1
Price
$265.72
Total Value
$265.72
Shares Held After
50,460
% of Holdings
0.0%

AMAZON COM INC (AMZN)

Zapolsky David — Senior Vice President
May 21, 2026
Sale
Shares
1,014
Price
$265.12
Total Value
$268.83K
Shares Held After
50,461
% of Holdings
2.0%

AMAZON COM INC (AMZN)

Zapolsky David — Senior Vice President
May 21, 2026
Sale
Shares
1,644
Price
$264.12
Total Value
$434.21K
Shares Held After
51,475
% of Holdings
3.1%

AMAZON COM INC (AMZN)

Zapolsky David — Senior Vice President
May 21, 2026
Sale
Shares
1,921
Price
$263.17
Total Value
$505.54K
Shares Held After
53,119
% of Holdings
3.5%
Version: v26.5.2