- Zillah Byng-thorne · Director$521K
- Jonathan Z Cohen · Director$475K
- Brian P Macdonald · Director$248K
- Jose E. Cil · Director$225K
- + 1 more
Stock market today: insider buys and sells, Thursday, May 21, 2026
Corporate insiders filed 7 open-market purchases worth $1.2M and 41 sales worth $352M, including 2 new cluster buys. The S&P 500 (SPY) rose 0.2% on the day.
New cluster buys
- David C Habiger · Director$251K
- Edward J Ludwig · Director$203K
- Cheryl Pegus · Director$100K
Biggest insider buys
- Buy
NCLH Director Jonathan Z Cohen bought $475K of NCLH at $15.83 — first open-market purchase in our records; raises the stake by 337%.
- Buy
BSX Director Edward J Ludwig bought $203K of BSX at $56.68 — first open-market purchase in our records.
- Buy
BSX Director David C Habiger bought $126K of BSX at $55.92.
- Buy
BSX Director David C Habiger bought $125K of BSX at $56.95 — first open-market purchase in our records; raises the stake by 23%.
- Buy
BSX Director Cheryl Pegus bought $100K of BSX at $56.49 — first open-market purchase in our records; opens a new position.
- Buy
MAA Director Tamara D Fischer bought $77K of MAA at $129.00 — largest purchase by this insider in our records; raises the stake by 120%.
- Buy
MAA Director Tamara D Fischer bought $64K of MAA at $128.00 — first open-market purchase in our records; opens a new position.
Biggest insider sales
| Stock | Insider | Value | Plan |
|---|---|---|---|
| CVSCVS HEALTH Corp | Larry RobbinsDirector | $187M | — |
| CVSCVS HEALTH Corp | Larry RobbinsDirector | $74.6M | — |
| CVSCVS HEALTH Corp | Larry RobbinsDirector | $34.6M | — |
| CVSCVS HEALTH Corp | Larry RobbinsDirector | $14.5M | — |
| CVSCVS HEALTH Corp | Larry RobbinsDirector | $6.4M | — |
| AFLAflac Inc | Japan Post Holdings Co., Ltd.10% Owner | $4.2M | 10b5-1 |
| STXSeagate Technology Holdings plc | William D MosleyCEO | $3.6M | 10b5-1 |
| STXSeagate Technology Holdings plc | William D MosleyCEO | $3.2M | 10b5-1 |
| STXSeagate Technology Holdings plc | William D MosleyCEO | $2.4M | 10b5-1 |
| STXSeagate Technology Holdings plc | William D MosleyCEO | $2.0M | 10b5-1 |
Biggest moves among these stocks
Share-price change on the day, for stocks with insider filings.
Filing dates are when the SEC received each Form 4; trades can be up to two business days earlier. Facts from public filings, not investment advice.