A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 11 filings in this group are Form 4s for Caris Life Sciences, Inc.
The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.
Across the 11 insider filings shown, the breakdown is 8 compensation award and 3 open-market sale. 3 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Open-market sale
Insider Selling
2026-09-23
CAI insider Denton John Russel (See Remarks) sold 7,500 shares (~$238.6K)
Denton John Russel, listed as See Remarks at Caris Life Sciences, Inc., reported an open-market sale of 7,500 CAI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
S |
Open-market sale
|
7,500 |
$31.82 |
$238.6K |
Filing: Form 4 (Insider Transaction)
Insider: Denton John Russel (See Remarks)
Shares: 7,500
Est. Value: $238.6K
Form 4
Open-market sale
Insider Selling
2026-09-17
CAI insider Brille Brian J (Director, See Remarks) sold 400,000 shares (~$12.13M)
Brille Brian J, listed as Director, See Remarks at Caris Life Sciences, Inc., reported an open-market sale of 400,000 CAI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
400,000 |
$2.44 |
$976.0K |
S |
Open-market sale
|
400,000 |
$30.33 |
$12.13M |
M |
Option exercise
derivative · Stock Option
|
400,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Brille Brian J (Director, See Remarks)
Shares: 400,000
Est. Value: $12.13M
Form 4
Open-market sale
Insider Selling
2026-09-04
CAI insider Spetzler David Baxley (President) sold 597,212 shares (~$14.83M)
Spetzler David Baxley, listed as President at Caris Life Sciences, Inc., reported an open-market sale of 597,212 CAI shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
1,000,000 |
$2.44 |
$2.44M |
S |
Open-market sale
|
393,100 |
$24.76 |
$9.73M |
S |
Open-market sale
|
84,900 |
$25.32 |
$2.15M |
M |
Option exercise
|
250,000 |
$2.44 |
$610.0K |
S |
Open-market sale
|
119,212 |
$24.76 |
$2.95M |
M |
Option exercise
derivative · Stock Option
|
1,000,000 |
— |
— |
M |
Option exercise
derivative · Stock Option
|
250,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Spetzler David Baxley (President)
Shares: 597,212
Est. Value: $14.83M
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
CASTLEMAN PETER M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: CASTLEMAN PETER M (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
PHILLIPS T DANNY (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: PHILLIPS T DANNY (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
Minor Lloyd (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Minor Lloyd (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
Gilliam Joseph E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Gilliam Joseph E (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
Fredrickson David Paul (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Fredrickson David Paul (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
Vacirca Jeff L (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Vacirca Jeff L (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
JOHANSEN LAURA I (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: JOHANSEN LAURA I (Director)
Shares: 13,192
Form 4
Compensation award
Tax / Compensation Filing
2026-08-14
CAI insider Form 4 filed for equity award, exercise, or tax withholding
HALBERT JON (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
A |
Compensation award
|
13,192 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: HALBERT JON (Director)
Shares: 13,192