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insiderbid

Insider trading on May 18, 2026

95 insiders at 87 companies bought $38.6M of their own stock on the open market, across 123 transactions. The largest was Casdin Capital, LLC, Director, 10% Owner, buying $7.4M of GeneDx Holdings Corp. (WGS).

33 chief executives bought: Myers Franklin at DINO, Moulder Leon O Jr at ZBIO, Chan Hoi Lung at MIMI and 30 more.

Insiders sold $688.7M across 664 open-market sales. That is 17.8× the value bought. Selling routinely outweighs buying, because most executive pay is delivered in stock.

Bought
$38.6M
123 purchases
Sold
$688.7M
664 sales
Companies bought
87
95 insiders
CEO buys
33
chief executives

Open-market purchases

Code P only — insiders spending their own money, largest first.

WGSPBUY$7.4M
Casdin Capital, LLC · Director, 10%…May 18
175,000 sh @ $42.55 · +5.8% own
RSGPBUY$4.9M
Cascade Investment,… · 10% OwnerMay 18
22,828 sh @ $214.52 · +<0.1% own
RSGPBUY$1.9M
Cascade Investment,… · 10% OwnerMay 18
9,200 sh @ $211.48 · +<0.1% own
RSGPBUY$1.9M
Cascade Investment,… · 10% OwnerMay 18
8,900 sh @ $213.18 · +<0.1% own
BKKTPBUY$1.8M
Alfred Michael · DirectorMay 18
220,000 sh @ $8.20 · +54.3% own
RSGPBUY$1.7M
Cascade Investment,… · 10% OwnerMay 18
8,084 sh @ $212.28 · +<0.1% own
RSGPBUY$1.5M
Cascade Investment,… · 10% OwnerMay 18
7,108 sh @ $215.11 · +<0.1% own
VIDAPBUY$1.5M
TVP Bitcoin Venture GP… · 10% OwnerMay 18
375,000 sh @ $4.00 · +22.9% own
AATPBUY$1.4M
Rady Ernest S · Executive ChairmanMay 18
68,768 sh @ $21.00 · +0.9% own
DINOPBUY$1M
Myers Franklin · CEO and PresidentMay 18
15,000 sh @ $69.11 · +9.3% own
ZBIOPBUY$1M
Moulder Leon O Jr · Chief Executive…May 18
60,000 sh @ $16.88 · +162.5% own
NIQPBUY$1M
Peck James M · See RemarksMay 18
118,625 sh @ $8.43 · +38.8% own
RSGPBUY$883.6K
Cascade Investment,… · 10% OwnerMay 18
4,200 sh @ $210.38 · 0.0% own
TXOPBUY$767.1K
Simpson Bob R · Director, 10%…May 18
58,251 sh @ $13.17 · +0.8% own
MIMIPBUY$637.8K
Chan Hoi Lung · Chief Executive…May 18
211,879 sh @ $3.01 · +80.7% own
COEPBUY$628.3K
Huang Jack Jiajia · Chief Executive…May 18
22,440 sh @ $28.00 · +<0.1% own
GRNTPBUY$549K
Perry Griffin · DirectorMay 18
100,000 sh @ $5.49 · +9.4% own
CDWPBUY$499.4K
Leahy Christine A · See RemarksMay 18
4,830 sh @ $103.40 · +2.6% own
MXFPBUY$401.3K
Saba Capital Management,… · 10% OwnerMay 18
18,586 sh @ $21.59 · +0.9% own
PBUY$397.8K
Cordes Burkhard Otto · DirectorMay 18
89,000 sh @ $4.47 · +6.6% own
MERCPBUY$366.5K
Kellogg Peter R · 10% OwnerMay 18
380,000 sh @ $0.9645 · +25.8% own
GLPPBUY$366.5K
Global GP LLC · General PartnerMay 18
7,500 sh @ $48.86 · +20.1% own
AXIA3PBUY$315.2K
Batista de Lima Filho… · DirectorMay 18
27,700 sh @ $11.38 · +0.2% own
UTGNPBUY$266.6K
First Southern Funding… · 10% OwnerMay 18
4,850 sh @ $54.96 · +1.0% own
UTGNPBUY$266.6K
Correll Jesse T · Chairman & CEOMay 18
4,850 sh @ $54.96 · +1.0% own
GFPBUY$264.3K
Saba Capital Management,… · 10% OwnerMay 18
22,308 sh @ $11.85 · +0.7% own
ONMDPBUY$250K
Kosasa Thomas · Director, 10%…May 18
268,817 sh @ $0.93 · +1.6% own

Open-market sales

Pre-arranged 10b5-1 trades are marked.

RDWSSELL$127.5M
Ae Red Holdings, Llc · DirectorMay 18
9.6M sh @ $13.30 · -98.7% own
RDWSSELL$82.1M
Ae Red Holdings, Llc · DirectorMay 18
5.7M sh @ $14.50 · -36.8% own
TRMDSSELL$11.1M
Meldgaard Jacob Balslev · Chief Executive…May 18
348,411 sh @ $31.94 · -100.0% own
CRWVSSELL$10.8M
Venturo Brian M · Chief Strategy…May 18
107,822 sh @ $100.28 · -40.2% own
MPWRSSELL$9.9M
Hsing Michael · CEOMay 18
6,688 sh @ $1,486.76 · -0.8% own
SNEXSSELL$9.8M
Oconnor Sean Michael · Executive Vice-Cha…May 18
87,790 sh @ $111.46 · -6.6% own
SONYSSELL$9M
Yoshida Kenichiro · DirectorMay 18
400,000 sh @ $22.61 · -37.7% own
SLDESSELL$8.7M
Lucas Bruce · Chief Executive…May 18
455,000 sh @ $19.06 · -1.3% own
MPWRSSELL$8.5M
Hsing Michael · CEOMay 18
5,819 sh @ $1,467.62 · -0.7% own
MPWRSSELL$8.5M
Hsing Michael · CEOMay 18
5,737 sh @ $1,482.51 · -0.7% own
MPWRSSELL$7.4M
Hsing Michael · CEOMay 18
5,049 sh @ $1,472.84 · -0.6% own
IRDSSELL$7.4M
Foundation Fighting… · DirectorMay 18
1.7M sh @ $4.35 · -30.9% own
CRWVSSELL$6.3M
Venturo Brian M · Chief Strategy…May 18
62,339 sh @ $101.16 · -38.9% own
MPWRSSELL$6M
Hsing Michael · CEOMay 18
4,082 sh @ $1,476.96 · -0.5% own
NESRSSELL$5.7M
Al-Nowais Yousif… · DirectorMay 18
220,568 sh @ $26.06 · -4.4% own
MPWRSSELL$5.7M
Hsing Michael · CEOMay 18
3,769 sh @ $1,507.70 · -0.4% own
INODSSELL$5.6M
Abuhoff Jack · CEOMay 18
60,295 sh @ $93.59 · -4.0% own
ARMSSELL$5.1M
Grisenthwaite Richard… · Chief ArchitectMay 18
24,339 sh @ $209.15 · -100.0% own
MPWRSSELL$5M
Hsing Michael · CEOMay 18
3,424 sh @ $1,462.61 · -0.4% own
ALABSSELL$4.7M
Mohan Jitendra · Chief Executive…May 18
21,739 sh @ $215.62 · -0.6% own
TALOSSELL$4.7M
Control Empresarial de… · 10% OwnerMay 18
284,000 sh @ $16.38 · -0.7% own
ALABSSELL$4.6M
Mohan Jitendra · Chief Executive…May 18
19,404 sh @ $235.41 · -1.3% own
ALABSSELL$4.6M
Gajendra Sanjay · President and COOMay 18
19,404 sh @ $235.41 · -1.3% own
ASXSSELL$4.6M
Chen Jeffrey · DirectorMay 18
9,000 sh @ $506.00 · -13.9% own
TDGSSELL$4.5M
Howley W Nicholas · DirectorMay 18
3,801 sh @ $1,188.13 · -14.9% own
MPWRSSELL$4.4M
Hsing Michael · CEOMay 18
2,929 sh @ $1,503.05 · -0.3% own
CRWVSSELL$4.2M
Venturo Brian M · Chief Strategy…May 18
41,329 sh @ $102.25 · -42.3% own
INODSSELL$4.1M
Abuhoff Jack · CEOMay 18
43,289 sh @ $94.28 · -3.0% own
ALABSSELL$4M
Mohan Jitendra · Chief Executive…May 18
18,749 sh @ $214.62 · -0.5% own
INODSSELL$3.8M
Abuhoff Jack · CEOMay 18
39,881 sh @ $95.36 · -2.9% own
CRWVSSELL$3.8M
Venturo Brian M · Chief Strategy…May 18
36,625 sh @ $103.30 · -64.8% own
EVCSSELL$3.7M
Seros Alexandra · 10% OwnerMay 18
468,583 sh @ $7.99 · -5.6% own
AXIA3SSELL$3.6M
Batista de Lima Filho… · DirectorMay 18
344,600 sh @ $10.35 · -11.3% own
DDOGSSELL$3.4M
Le-Quoc Alexis · Chief Technology…May 18
16,347 sh @ $207.66 · -2.9% own
AFLSSELL$3.3M
Japan Post Holdings… · 10% OwnerMay 18
27,952 sh @ $118.59 · <0.1% own
MPLTSSELL$3.2M
Kroeger Christopher A. · Chief Executive…May 18
118,037 sh @ $27.19 · -7.8% own
LASRSSELL$3.2M
Keeney Scott H · President and CEOMay 18
45,191 sh @ $70.82 · -1.8% own
CRWVSSELL$3.2M
Venturo Brian M · Chief Strategy…May 18
32,026 sh @ $99.37 · -10.7% own
DDOGSSELL$3.1M
Le-Quoc Alexis · Chief Technology…May 18
14,901 sh @ $208.68 · -2.7% own
ALABSSELL$3.1M
Mohan Jitendra · Chief Executive…May 18
14,416 sh @ $213.63 · -0.4% own
LITESSELL$3.1M
Wupen Yuen · President, Global…May 18
3,210 sh @ $953.95 · -3.8% own
LITESSELL$3M
Retort Vincent · See RemarksMay 18
3,183 sh @ $953.95 · -3.4% own
OSCRSSELL$2.8M
Blackley Richard Scott · Chief Financial…May 18
110,000 sh @ $25.03 · -9.0% own
CRWVSSELL$2.7M
Venturo Brian M · Chief Strategy…May 18
26,955 sh @ $100.28 · -40.2% own
MRAMSSELL$2.7M
Aggarwal Sanjeev · President and CEOMay 18
83,048 sh @ $32.48 · -9.0% own
RDDTSSELL$2.7M
Wong Jennifer L. · Chief Operating…May 18
16,914 sh @ $158.85 · -1.5% own
GTLBSSELL$2.6M
Sijbrandij Sytse · DirectorMay 18
105,408 sh @ $24.93 · -0.7% own
ALABSSELL$2.6M
Mohan Jitendra · Chief Executive…May 18
12,103 sh @ $216.46 · -0.9% own
ALABSSELL$2.6M
Gajendra Sanjay · President and COOMay 18
12,103 sh @ $216.46 · -0.8% own
SCHWSSELL$2.5M
Schwab Charles R. · Co-ChairmanMay 18
27,500 sh @ $92.40 · <0.1% own