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Yellin Jonathan D

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19166
SEC CIK
0001701764

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CompanyLast reported asReport datePublished
CRA INTERNATIONAL, INC.CRAI · Entity 923EVP AND GENERAL COUNSELSeptember 14, 2026September 16, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

CRA INTERNATIONAL, INC.

Report date September 14, 2026 · Filed September 16, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect319.5383 Reported balance After 2026-09-14 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-09-14 · Grant · Acquired 1.0936 · Balance 319.5383

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2: The RSUs, which include an aggregate of 13.5383 Dividend Units, vest on April 11, 2027.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect560.7588 Reported balance After 2026-09-14 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-09-14 · Grant · Acquired 1.9191 · Balance 560.7588

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3: The RSUs, which include an aggregate of 23.7588 Dividend Units, vest on April 11, 2027.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect589.9452 Reported balance After 2026-09-14 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-09-14 · Grant · Acquired 2.0191 · Balance 589.9452

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F4: The RSUs, which include an aggregate of 16.9452 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect1,097.5318 Reported balance After 2026-09-14 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-09-14 · Grant · Acquired 3.7562 · Balance 1,097.5318

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F5: The RSUs, which include an aggregate of 31.5318 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect679.6733 Reported balance After 2026-09-14 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2026-09-14 · Grant · Acquired 2.3261 · Balance 679.6733

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F6: The RSUs, which include an aggregate of 12.6733 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect1,406.1008 Reported balance After 2026-09-14 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2026-09-14 · Grant · Acquired 4.8124 · Balance 1,406.1008

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F7: The RSUs, which include an aggregate of 10.1008 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

Common StockSEC Table I · non-derivativeDirect11,153 Reported balance Holding disclosure · report date 2026-09-14 · row 1 Holding and transaction disclosures are not merged.
1 source row

Row 1 · Balance 11,153

Nonqualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $44.87 · Expires 2027-12-18Direct2,377 Reported balance Holding disclosure · report date 2026-09-14 · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · Balance 2,377

F8: Date indicated is date of grant. Option vests in four equal annual installments beginning on the first anniversary of the date of grant.

Nonqualified Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $47.45 · Expires 2028-12-06Direct2,845 Reported balance Holding disclosure · report date 2026-09-14 · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · Balance 2,845

F8: Date indicated is date of grant. Option vests in four equal annual installments beginning on the first anniversary of the date of grant.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2: The RSUs, which include an aggregate of 13.5383 Dividend Units, vest on April 11, 2027.

F3: The RSUs, which include an aggregate of 23.7588 Dividend Units, vest on April 11, 2027.

F4: The RSUs, which include an aggregate of 16.9452 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F5: The RSUs, which include an aggregate of 31.5318 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F6: The RSUs, which include an aggregate of 12.6733 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

F7: The RSUs, which include an aggregate of 10.1008 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

F8: Date indicated is date of grant. Option vests in four equal annual installments beginning on the first anniversary of the date of grant.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 4.8124 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 7

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,406.1008

Underlying: Common Stock · 4.8124 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F7 · derivative.exercise_date: The RSUs, which include an aggregate of 10.1008 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

F7 · derivative.expiration_date: The RSUs, which include an aggregate of 10.1008 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.3261 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 6

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 679.6733

Underlying: Common Stock · 2.3261 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F6 · derivative.exercise_date: The RSUs, which include an aggregate of 12.6733 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

F6 · derivative.expiration_date: The RSUs, which include an aggregate of 12.6733 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 3.7562 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 5

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,097.5318

Underlying: Common Stock · 3.7562 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F5 · derivative.exercise_date: The RSUs, which include an aggregate of 31.5318 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F5 · derivative.expiration_date: The RSUs, which include an aggregate of 31.5318 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.0191 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 589.9452

Underlying: Common Stock · 2.0191 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F4 · derivative.exercise_date: The RSUs, which include an aggregate of 16.9452 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F4 · derivative.expiration_date: The RSUs, which include an aggregate of 16.9452 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 1.9191 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 560.7588

Underlying: Common Stock · 1.9191 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3 · derivative.exercise_date: The RSUs, which include an aggregate of 23.7588 Dividend Units, vest on April 11, 2027.

F3 · derivative.expiration_date: The RSUs, which include an aggregate of 23.7588 Dividend Units, vest on April 11, 2027.

Read SEC document
September 14, 2026 Filed Sep 16, 2026 20:59 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 1.0936 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000046 · form4-09162026_080918.xml · derivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 319.5383

Underlying: Common Stock · 1.0936 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 13.5383 Dividend Units, vest on April 11, 2027.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 13.5383 Dividend Units, vest on April 11, 2027.

Read SEC document
August 25, 2026 Filed Aug 27, 2026 23:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 400 $174.26 $69,703.68
Disclosure

SEC source: 0001701764-26-000043 · form4-08272026_110822.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,153

F4 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $174.0925 to $174.71, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
August 25, 2026 Filed Aug 27, 2026 23:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 1,307 $173.34 $226,549.37
Disclosure

SEC source: 0001701764-26-000043 · form4-08272026_110822.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 11,553

F3 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $172.995 to $173.72, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
August 25, 2026 Filed Aug 27, 2026 23:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 543 $172.30 $93,561.02
Disclosure

SEC source: 0001701764-26-000043 · form4-08272026_110822.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,860

F1 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $171.88 to $172.85, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.5562 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 7

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 677.3472

Underlying: Common Stock · 2.5562 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F7 · derivative.exercise_date: The RSUs, which include an aggregate of 10.3472 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

F7 · derivative.expiration_date: The RSUs, which include an aggregate of 10.3472 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 4.1278 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 6

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,093.7756

Underlying: Common Stock · 4.1278 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F6 · derivative.exercise_date: The RSUs, which include an aggregate of 27.7756 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F6 · derivative.expiration_date: The RSUs, which include an aggregate of 27.7756 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.2187 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 5

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 587.9261

Underlying: Common Stock · 2.2187 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F5 · derivative.exercise_date: The RSUs, which include an aggregate of 14.9261 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F5 · derivative.expiration_date: The RSUs, which include an aggregate of 14.9261 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.109 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 558.8397

Underlying: Common Stock · 2.109 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F4 · derivative.exercise_date: The RSUs, which include an aggregate of 21.8397 Dividend Units, vest on April 11, 2027.

F4 · derivative.expiration_date: The RSUs, which include an aggregate of 21.8397 Dividend Units, vest on April 11, 2027.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 1.2018 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 318.4447

Underlying: Common Stock · 1.2018 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3 · derivative.exercise_date: The RSUs, which include an aggregate of 12.4447 Dividend Units, vest on April 11, 2027.

F3 · derivative.expiration_date: The RSUs, which include an aggregate of 12.4447 Dividend Units, vest on April 11, 2027.

Read SEC document
June 12, 2026 Filed Jun 16, 2026 22:05 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 5.2884 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000037 · form4-06162026_100615.xml · derivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,401.2884

Underlying: Common Stock · 5.2884 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 5.2884 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 5.2884 Dividend Units, vest in four equal annual installments beginning on April 9, 2027.

Read SEC document
May 20, 2026 Filed May 22, 2026 21:54 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 224.5931 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000034 · form4-05222026_090557.xml · derivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 674.791

Underlying: Common Stock · 899.3841 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 7.7910 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 7.7910 Dividend Units, vest in three equal annual installments beginning on May 20, 2027.

Read SEC document
May 20, 2026 Filed May 22, 2026 21:54 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 66 $148.01 $9,768.66
Disclosure

SEC source: 0001701764-26-000034 · form4-05222026_090557.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,403

Read SEC document
May 20, 2026 Filed May 22, 2026 21:54 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 2.5931 $148.01 $383.80
Disclosure

SEC source: 0001701764-26-000034 · form4-05222026_090557.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,469

Read SEC document
May 20, 2026 Filed May 22, 2026 21:54 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 224.5931 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000034 · form4-05222026_090557.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,471.5931

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

Read SEC document
May 19, 2026 Filed May 20, 2026 21:53 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 1,600 $148.00 $236,800.00
Disclosure

SEC source: 0001701764-26-000031 · form4-05202026_090521.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 13,247

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
May 19, 2026 Filed May 20, 2026 21:53 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 400 $147.45 $58,978.00
Disclosure

SEC source: 0001701764-26-000031 · form4-05202026_090521.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,847

F3 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $147.00 to $147.78, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
May 19, 2026 Filed May 20, 2026 21:53 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 250 $146.37 $36,591.58
Disclosure

SEC source: 0001701764-26-000031 · form4-05202026_090521.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 15,247

F1 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $145.87 to $146.46, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 10, 2025.

Read SEC document
April 29, 2026 Filed May 1, 2026 21:13 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 293.3649 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000025 · form4-05012026_090529.xml · derivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 585.7074

Underlying: Common Stock · 879.0723 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 12.7074 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 12.7074 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
April 29, 2026 Filed May 1, 2026 21:13 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 85 $154.55 $13,136.75
Disclosure

SEC source: 0001701764-26-000025 · form4-05012026_090529.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,497

Read SEC document
April 29, 2026 Filed May 1, 2026 21:13 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 6.3649 $154.55 $983.70
Disclosure

SEC source: 0001701764-26-000025 · form4-05012026_090529.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,582

Read SEC document
April 29, 2026 Filed May 1, 2026 21:13 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 293.3649 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000025 · form4-05012026_090529.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,588.3649

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 555.6902 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · derivative · entry 8

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 556.7307

Underlying: Common Stock · 1,112.4209 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3 · derivative.exercise_date: The RSUs, which include an aggregate of 19.7307 Dividend Units, vest on April 11, 2027.

F3 · derivative.expiration_date: The RSUs, which include an aggregate of 19.7307 Dividend Units, vest on April 11, 2027.

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 316.206 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · derivative · entry 7

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 317.2429

Underlying: Common Stock · 633.4489 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 11.2429 Dividend Units, vest on April 11, 2027.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 11.2429 Dividend Units, vest on April 11, 2027.

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 158 $163.80 $25,880.40
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 6

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,295

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 19.6902 $163.80 $3,225.25
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 5

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,453

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 555.6902 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,472.6902

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 90 $163.80 $14,742.00
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,917

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 11.206 $163.80 $1,835.54
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,007

Read SEC document
April 11, 2026 Filed Apr 14, 2026 22:26 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 316.206 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000022 · form4-04142026_100433.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,018.206

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

Read SEC document
April 09, 2026 Filed Apr 13, 2026 22:11 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 1,396 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000019 · form4-04132026_100453.xml · derivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,396

Underlying: Common Stock · 1,396 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs vest in four equal annual installments beginning on April 9, 2027.

F2 · derivative.expiration_date: The RSUs vest in four equal annual installments beginning on April 9, 2027.

Read SEC document
March 20, 2026 Filed Mar 24, 2026 22:07 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 3.2244 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000016 · form4-03242026_100348.xml · derivative · entry 6

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 899.3841

Underlying: Common Stock · 3.2244 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F6 · derivative.exercise_date: The RSUs, which include an aggregate of 10.3841 Dividend Units, vest in four equal annual installments beginning on May 20, 2026.

F6 · derivative.expiration_date: The RSUs, which include an aggregate of 10.3841 Dividend Units, vest in four equal annual installments beginning on May 20, 2026.

Read SEC document
March 20, 2026 Filed Mar 24, 2026 22:07 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 3.9066 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000016 · form4-03242026_100348.xml · derivative · entry 5

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,089.6478

Underlying: Common Stock · 3.9066 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F5 · derivative.exercise_date: The RSUs, which include an aggregate of 23.6478 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

F5 · derivative.expiration_date: The RSUs, which include an aggregate of 23.6478 Dividend Units, vest in two equal annual installments beginning on April 29, 2027.

Read SEC document
March 20, 2026 Filed Mar 24, 2026 22:07 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 3.1517 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000016 · form4-03242026_100348.xml · derivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 879.0723

Underlying: Common Stock · 3.1517 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F4 · derivative.exercise_date: The RSUs, which include an aggregate of 19.0723 Dividend Units, vest in three equal annual installments beginning on April 29, 2026.

F4 · derivative.expiration_date: The RSUs, which include an aggregate of 19.0723 Dividend Units, vest in three equal annual installments beginning on April 29, 2026.

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March 20, 2026 Filed Mar 24, 2026 22:07 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 3.9882 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000016 · form4-03242026_100348.xml · derivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,112.4209

Underlying: Common Stock · 3.9882 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3 · derivative.exercise_date: The RSUs, which include an aggregate of 39.4209 Dividend Units, vest in two equal annual installments beginning on April 11, 2026.

F3 · derivative.expiration_date: The RSUs, which include an aggregate of 39.4209 Dividend Units, vest in two equal annual installments beginning on April 11, 2026.

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March 20, 2026 Filed Mar 24, 2026 22:07 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 GrantRestricted Stock Units · Derivative 2.271 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000016 · form4-03242026_100348.xml · derivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 633.4489

Underlying: Common Stock · 2.271 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 22.4489 Dividend Units, vest in two equal annual installments beginning on April 11, 2026.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 22.4489 Dividend Units, vest in two equal annual installments beginning on April 11, 2026.

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March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 573.8705 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · derivative · entry 8

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 573.8705 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F3 · derivative.exercise_date: The RSUs, which include an aggregate of 25.8705 Dividend Units, vested on March 10, 2026.

F3 · derivative.expiration_date: The RSUs, which include an aggregate of 25.8705 Dividend Units, vested on March 10, 2026.

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March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionRestricted Stock Units · Derivative 398.9839 $0.00 $0.00
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · derivative · entry 7

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 398.9839 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

F2 · derivative.exercise_date: The RSUs, which include an aggregate of 17.9839 Dividend Units, vested on March 10, 2026.

F2 · derivative.expiration_date: The RSUs, which include an aggregate of 17.9839 Dividend Units, vested on March 10, 2026.

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March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 161 $171.75 $27,651.75
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 6

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,702

Read SEC document
March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 25.8705 $171.75 $4,443.26
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 5

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,863

Read SEC document
March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 573.8705 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 4

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,888.8705

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

Read SEC document
March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Tax withholdingCommon Stock 112 $171.75 $19,236.00
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,315

Read SEC document
March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Disposition to issuerCommon Stock 17.9839 $171.75 $3,088.73
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,427

Read SEC document
March 10, 2026 Filed Mar 12, 2026 21:36 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 Exercise / conversionCommon Stock 398.9839 Not disclosed Not disclosed
Disclosure

SEC source: 0001701764-26-000013 · form4-03122026_090335.xml · nonDerivative · entry 1

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,444.9839

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the Issuer's common stock; vested RSUs are payable in the form of cash, shares of the Issuer's common stock or a combination thereof, except as otherwise indicated below. To the extent vested RSUs are paid in shares of the Issuer's common stock, such shares will be delivered to the reporting person as soon as possible after vesting, but in no event later than two and one-half months after the end of the year in which vesting occurs, subject to the collection of withholding taxes. Dividend equivalent rights accrue with respect to unvested RSUs in the form of additional RSUs ("Dividend Units") when and as dividends are paid on the Issuer's common stock, and Dividend Units vest on the same dates and in the same relative proportions as the RSUs on which they accrue.

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March 05, 2026 Filed Mar 9, 2026 21:57 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 100 $184.10 $18,410.00
Disclosure

SEC source: 0001701764-26-000009 · form4-03092026_090347.xml · nonDerivative · entry 3

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,046

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading adopted by the reporting person on November 10, 2025.

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March 05, 2026 Filed Mar 9, 2026 21:57 UTC CRA INTERNATIONAL, INC. CRAI · Entity 923 SaleCommon Stock 500 $182.99 $91,497.00
Disclosure

SEC source: 0001701764-26-000009 · form4-03092026_090347.xml · nonDerivative · entry 2

Yellin Jonathan D · CIK 0001701764 · EVP AND GENERAL COUNSEL

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 14,146

F3 · price: The price in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $182.75 to $183.115, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

F2 · ownership.direct: These transactions were effected pursuant to a Rule 10b5-1 trading adopted by the reporting person on November 10, 2025.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.