WaveMan · Form 4
Lefkofsky Eric P insider trades
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Lefkofsky Eric P insider trades

Lefkofsky Eric P has filed 39 Form 4s with the SEC that we hold, for Tempus AI, Inc. (TEM) (CEO and Chairman, Director, 10% owner) and Groupon, Inc. (GRPN) (10% owner). Across all of them we count 0 purchases worth $0 and 257 sales worth $649.6M reported on Form 4. In the last 12 months: 0 purchases ($0) and 143 sales ($190.8M). The largest single trade was a sale of 1,580,928 shares of Tempus AI, Inc. worth $92.9M, dated 2025-02-27. Of 55 sales filed since we began reading the 10b5-1 checkbox, 54 (98%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-07-19 and the latest 2026-09-24.

Tempus AI, Inc. (TEM)

CEO and Chairman, Director, 10% owner · 33 filings · 257 purchases and sales
Trade dateCodeSharesValue as filedFiled
2024-12-18S, sale reported on Form 416,176$620.0K2024-12-20
2024-12-18S, sale reported on Form 4116,813$4.4M2024-12-20
2024-12-18S, sale reported on Form 44,469$175.7K2024-12-20
2024-12-18S, sale reported on Form 43,338$127.7K2024-12-20
2024-12-18S, sale reported on Form 442,193$1.6M2024-12-20
2024-12-18S, sale reported on Form 44,666$183.7K2024-12-20
2025-01-22S, sale reported on Form 430,609$1.5M2025-01-24
2025-01-22S, sale reported on Form 4238,699$11.9M2025-01-24
2025-01-22S, sale reported on Form 460,587$3.1M2025-01-24
2025-01-22S, sale reported on Form 441,747$2.2M2025-01-24
2025-01-22S, sale reported on Form 42,600$136.4K2025-01-24
2025-01-22S, sale reported on Form 4101,967$5.0M2025-01-24
2025-01-23S, sale reported on Form 424,677$1.2M2025-01-24
2025-01-23S, sale reported on Form 461,987$3.0M2025-01-24
2025-01-23S, sale reported on Form 4377$18.6K2025-01-24
2025-01-23S, sale reported on Form 447,110$2.4M2025-01-24
2025-01-23S, sale reported on Form 4365,467$19.3M2025-01-24
2025-01-23S, sale reported on Form 4145,450$7.8M2025-01-24
2025-01-24S, sale reported on Form 43,100$169.7K2025-01-24
2025-01-24S, sale reported on Form 471,333$3.8M2025-01-24
2025-01-24S, sale reported on Form 411,355$611.4K2025-01-24
2025-01-29S, sale reported on Form 410,221$556.5K2025-01-31
2025-01-29S, sale reported on Form 468,897$3.7M2025-01-31
2025-01-30S, sale reported on Form 477,626$4.2M2025-01-31
2025-01-31S, sale reported on Form 4400$23.9K2025-01-31
2025-01-31S, sale reported on Form 424,118$1.4M2025-01-31
2025-01-31S, sale reported on Form 457,538$3.3M2025-01-31
2025-02-05S, sale reported on Form 432,784$2.2M2025-02-07
2025-02-05S, sale reported on Form 441,701$2.8M2025-02-07
2025-02-06S, sale reported on Form 416,641$1.1M2025-02-07
2025-02-06S, sale reported on Form 4200$13.9K2025-02-07
2025-02-06S, sale reported on Form 468,268$4.6M2025-02-07
2025-02-07S, sale reported on Form 48,436$579.5K2025-02-07
2025-02-07S, sale reported on Form 432,205$2.2M2025-02-07
2025-02-07S, sale reported on Form 439,747$2.7M2025-02-07
2025-02-12S, sale reported on Form 484,948$5.9M2025-02-14
2025-02-13S, sale reported on Form 45,000$401.4K2025-02-14
2025-02-13S, sale reported on Form 414,201$1.1M2025-02-14
2025-02-13S, sale reported on Form 411,165$867.3K2025-02-14
2025-02-13S, sale reported on Form 424,896$2.0M2025-02-14
2025-02-13S, sale reported on Form 423,332$1.9M2025-02-14
2025-02-14S, sale reported on Form 42,300$201.0K2025-02-14
2025-02-14S, sale reported on Form 432,200$2.8M2025-02-14
2025-02-14S, sale reported on Form 411,589$991.8K2025-02-14
2025-02-14S, sale reported on Form 433,914$2.9M2025-02-14
2025-02-19S, sale reported on Form 418,509$1.5M2025-02-20
2025-02-19S, sale reported on Form 416,437$1.3M2025-02-20
2025-02-19S, sale reported on Form 419,409$1.6M2025-02-20
2025-02-19S, sale reported on Form 430,285$2.4M2025-02-20
2025-02-20S, sale reported on Form 469,231$5.1M2025-02-20
2025-02-27S, sale reported on Form 41,580,928$92.9M2025-02-27
2025-02-27S, sale reported on Form 4145,966$8.6M2025-02-27
2025-02-27S, sale reported on Form 41,397,589$82.1M2025-02-27
2025-02-27S, sale reported on Form 4115,751$6.8M2025-02-27
2025-03-05S, sale reported on Form 411,500$606.4K2025-03-07
2025-03-05S, sale reported on Form 427,132$1.4M2025-03-07
2025-03-05S, sale reported on Form 418,685$938.9K2025-03-07
2025-03-05S, sale reported on Form 433,030$1.7M2025-03-07
2025-03-05S, sale reported on Form 412,334$643.6K2025-03-07
2025-03-05S, sale reported on Form 435,951$1.9M2025-03-07
2025-03-05S, sale reported on Form 4167,975$8.4M2025-03-07
2025-03-05S, sale reported on Form 4255,738$13.0M2025-03-07
2025-03-06S, sale reported on Form 447,301$2.4M2025-03-07
2025-03-06S, sale reported on Form 419,202$938.0K2025-03-07
2025-03-06S, sale reported on Form 417,134$848.6K2025-03-07
2025-03-06S, sale reported on Form 46,469$327.3K2025-03-07
2025-03-06S, sale reported on Form 47,195$371.3K2025-03-07
2025-03-06S, sale reported on Form 494,401$4.6M2025-03-07
2025-03-06S, sale reported on Form 456,439$2.8M2025-03-07
2025-03-06S, sale reported on Form 41,859$96.1K2025-03-07
2025-05-20S, sale reported on Form 423$1.5K2025-05-22
2025-05-20S, sale reported on Form 416,729$1.1M2025-05-22
2025-06-17S, sale reported on Form 417,551$1.2M2025-06-20
2025-06-17S, sale reported on Form 430,180$2.1M2025-06-20
2025-06-17S, sale reported on Form 42,269$161.3K2025-06-20
2025-06-17S, sale reported on Form 468,550$4.8M2025-06-20
2025-06-17S, sale reported on Form 4123,861$8.7M2025-06-20
2025-06-17S, sale reported on Form 47,589$539.7K2025-06-20
2025-06-18S, sale reported on Form 413,606$968.2K2025-06-20
2025-06-18S, sale reported on Form 4103,155$7.1M2025-06-20
2025-06-18S, sale reported on Form 41,800$121.2K2025-06-20
2025-06-18S, sale reported on Form 411,751$807.3K2025-06-20
2025-06-18S, sale reported on Form 419,969$1.4M2025-06-20
2025-06-18S, sale reported on Form 411,651$819.9K2025-06-20
2025-06-18S, sale reported on Form 44,829$343.9K2025-06-20
2025-06-18S, sale reported on Form 48,106$544.9K2025-06-20
2025-06-18S, sale reported on Form 423,931$1.6M2025-06-20
2025-06-18S, sale reported on Form 451,202$3.6M2025-06-20
2025-07-28S, sale reported on Form 419,848$1.3M2025-07-30
2025-07-28S, sale reported on Form 41,434$93.5K2025-07-30
2025-07-28S, sale reported on Form 45,735$374.1K2025-07-30
2025-07-28S, sale reported on Form 410,007$631.6K2025-07-30
2025-07-28S, sale reported on Form 44,962$318.0K2025-07-30
2025-07-28S, sale reported on Form 416,847$1.0M2025-07-30
2025-07-28S, sale reported on Form 440,029$2.5M2025-07-30
2025-07-28S, sale reported on Form 467,388$4.2M2025-07-30
2025-08-19S, sale reported on Form 4425$32.1K2025-08-21
2025-08-19S, sale reported on Form 417,033$1.3M2025-08-21
2025-08-27S, sale reported on Form 46,278$457.6K2025-08-29
2025-08-27S, sale reported on Form 497,494$7.3M2025-08-29
Newest 100 of 257

Groupon, Inc. (GRPN)

10% owner · 6 filings · 0 purchases and sales

No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.

Source

Counted from the Form 4 filings this reporting owner (SEC CIK 1114357) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.

Source: U.S. Securities and Exchange Commission (EDGAR) and other official government data · Updated 2026-10-12 · For informational purposes only, not investment advice.
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