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 12 filings in this group are Form 4s for OmniAb, 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 12 insider filings shown, the breakdown is 7 compensation award, 3 open-market sale and 2 option exercise. 3 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.
Form 4
Compensation award
Tax / Compensation Filing
2026-08-03
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Nwachuku Amechi Ekeke (Chief Operating Officer) 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
derivative · Stock Option (right to buy)
|
800,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Nwachuku Amechi Ekeke (Chief Operating Officer)
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Bertozzi Carolyn R (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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Bertozzi Carolyn R (Director)
Shares: 20,000
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Cochran Jennifer R. (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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Cochran Jennifer R. (Director)
Shares: 20,000
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Crouse Steven C. (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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Crouse Steven C. (Director)
Shares: 20,000
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Gotwals Philip J (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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Gotwals Philip J (Director)
Shares: 20,000
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
HIGGINS JOHN 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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: HIGGINS JOHN L (Director)
Shares: 20,000
Form 4
Compensation award
Tax / Compensation Filing
2026-06-18
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Love Steven (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 |
M |
Option exercise
|
20,000 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Restricted Stock Units
|
20,000 |
— |
— |
A |
Compensation award
derivative · Stock Option (right to buy)
|
40,000 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Love Steven (Director)
Shares: 20,000
Form 4
Option exercise
Tax / Compensation Filing
2026-04-21
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Gotwals Philip J (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
13,333 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
13,333 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Gotwals Philip J (Director)
Shares: 13,333
Form 4
Option exercise
Tax / Compensation Filing
2026-04-21
OABI insider Form 4 filed for equity award, exercise, or tax withholding
Crouse Steven C. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.
The insider converted options into shares. The exercise price was fixed when the options were granted, so the timing usually tracks an expiry schedule.
Transactions reported on this filing
| Code |
Nature |
Shares |
Price |
Value |
M |
Option exercise
|
13,333 |
— |
— |
M |
Option exercise
derivative · Restricted Stock Units
|
13,333 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Crouse Steven C. (Director)
Shares: 13,333
Form 4
Open-market sale
Insider Selling
2026-04-07
OABI insider FOEHR MATTHEW W (Director, President and CEO) sold 19,244 shares (~$28.7K)
FOEHR MATTHEW W, listed as Director, President and CEO at OmniAb, Inc., reported an open-market sale of 19,244 OABI 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
|
36,459 |
— |
— |
S |
Open-market sale
|
19,244 |
$1.49 |
$28.7K |
M |
Option exercise
derivative · Restricted Stock Units
|
36,459 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: FOEHR MATTHEW W (Director, President and CEO)
Shares: 19,244
Est. Value: $28.7K
Form 4
Open-market sale
Insider Selling
2026-04-07
OABI insider GUSTAFSON KURT A (Executive VP, Finance and CFO) sold 6,913 shares (~$10.3K)
GUSTAFSON KURT A, listed as Executive VP, Finance and CFO at OmniAb, Inc., reported an open-market sale of 6,913 OABI 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
|
13,542 |
— |
— |
S |
Open-market sale
|
6,913 |
$1.49 |
$10.3K |
M |
Option exercise
derivative · Restricted Stock Units
|
13,542 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: GUSTAFSON KURT A (Executive VP, Finance and CFO)
Shares: 6,913
Est. Value: $10.3K
Form 4
Open-market sale
Insider Selling
2026-04-07
OABI insider Berkman Charles S (Chief Legal Officer) sold 7,157 shares (~$10.7K)
Berkman Charles S, listed as Chief Legal Officer at OmniAb, Inc., reported an open-market sale of 7,157 OABI 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
|
13,542 |
— |
— |
S |
Open-market sale
|
7,157 |
$1.49 |
$10.7K |
M |
Option exercise
derivative · Restricted Stock Units
|
13,542 |
— |
— |
Filing: Form 4 (Insider Transaction)
Insider: Berkman Charles S (Chief Legal Officer)
Shares: 7,157
Est. Value: $10.7K