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MacKenzie Jonathan Barrett

Disclosed activity across 1 company

Tapewire entity
55691
SEC CIK
0001883230

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
MEDIFAST INCMED · Entity 6587VP, Finance & CAOMarch 13, 2026March 27, 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.

MEDIFAST INC

Report date March 13, 2026 · Filed March 27, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect20,838 Ending reported balance After 2026-03-25 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2026-03-13 · Tax withholding · Disposed 198 · Balance 10,940

F1: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Row 2 · 2026-03-17 · Tax withholding · Disposed 70 · Balance 10,870

F1: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Row 3 · 2026-03-25 · Tax withholding · Disposed 862 · Balance 10,008

F1: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Row 4 · 2026-03-25 · Grant · Acquired 10,830 · Balance 20,838

F2: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Filing footnotes · ownership attribution and instrument terms

F1: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F2: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

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
March 25, 2026 Filed Mar 27, 2026 21:54 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 10,830 $0.00 $0.00
Disclosure

SEC source: 0001628280-26-021797 · wk-form4_1774648479.xml · nonDerivative · entry 4

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,838

F2 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
March 25, 2026 Filed Mar 27, 2026 21:54 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 862 $9.59 $8,266.58
Disclosure

SEC source: 0001628280-26-021797 · wk-form4_1774648479.xml · nonDerivative · entry 3

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,008

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 17, 2026 Filed Mar 27, 2026 21:54 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 70 $10.05 $703.50
Disclosure

SEC source: 0001628280-26-021797 · wk-form4_1774648479.xml · nonDerivative · entry 2

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,870

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 13, 2026 Filed Mar 27, 2026 21:54 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 198 $9.62 $1,904.76
Disclosure

SEC source: 0001628280-26-021797 · wk-form4_1774648479.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,940

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

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March 25, 2025 Filed Mar 27, 2025 22:03 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 7,671 $0.00 $0.00
Disclosure

SEC source: 0001628280-25-015272 · wk-form4_1743112997.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,138

F1 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
March 17, 2025 Filed Mar 19, 2025 01:29 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 99 $14.35 $1,420.65
Disclosure

SEC source: 0001628280-25-013671 · wk-form4_1742347731.xml · nonDerivative · entry 3

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,467

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 16, 2025 Filed Mar 19, 2025 01:29 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 60 $13.94 $836.40
Disclosure

SEC source: 0001628280-25-013671 · wk-form4_1742347731.xml · nonDerivative · entry 2

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,566

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 13, 2025 Filed Mar 19, 2025 01:29 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 280 $13.87 $3,883.60
Disclosure

SEC source: 0001628280-25-013671 · wk-form4_1742347731.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,626

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
September 13, 2024 Filed Sep 17, 2024 22:06 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 11 $18.90 $207.90
Disclosure

SEC source: 0001628280-24-040661 · wk-form4_1726610779.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,906

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 15, 2024 Filed Mar 19, 2024 22:15 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 83 $36.61 $3,038.63
Disclosure

SEC source: 0001628280-24-011974 · wk-form4_1710886523.xml · nonDerivative · entry 2

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,917

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 15, 2024 Filed Mar 19, 2024 22:15 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 51 $36.61 $1,867.11
Disclosure

SEC source: 0001628280-24-011974 · wk-form4_1710886523.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,000

F1 · shares: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

F1 · price: Represents the number of shares withheld by the Issuer upon the vesting of a restricted stock unit grant to cover the executive's withholding tax associated with the satisfaction of all vesting conditions. The number of shares withheld is based upon the closing price of a share of Medifast common stock on the vesting date, or if the vesting date fell on a weekend or market holiday, upon the closing price of a share of Medifast common stock on the most recent prior market day.

Read SEC document
March 13, 2024 Filed Mar 15, 2024 21:32 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 2,565 $0.00 $0.00
Disclosure

SEC source: 0001628280-24-011543 · wk-form4_1710538353.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,051

F1 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
September 13, 2023 Filed Sep 15, 2023 21:01 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 10 $81.08 $810.80
Disclosure

SEC source: 0001628280-23-032392 · wk-form4_1694811703.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,486

F1 · shares: These shares were withheld to satisfy the tax withholding obligations upon vesting of an equity award.

F2 · price: This equity award vested on September 13, 2023. The price used for withholding was the closing sales price of the vesting date.

Read SEC document
March 17, 2023 Filed May 1, 2023 12:49 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 906 $0.00 $0.00
Disclosure

SEC source: 0001628280-23-014353 · wf-form4_168294536658185.xml · nonDerivative · entry 2

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,496

F1 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
March 16, 2023 Filed May 1, 2023 12:49 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 57 $104.46 $5,954.22
Disclosure

SEC source: 0001628280-23-014353 · wf-form4_168294536658185.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 590

Read SEC document
September 13, 2022 Filed Feb 10, 2023 02:07 UTC MEDIFAST INC MED · Entity 6587 Tax withholdingCommon Stock 10 $124.56 $1,245.60
Disclosure

SEC source: 0001628280-23-003056 · wf-form4_167599481548690.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 647

Read SEC document
March 16, 2022 Filed Mar 21, 2022 22:57 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 548 $0.00 $0.00
Disclosure

SEC source: 0001104659-22-036228 · tm2210070-2_4seq1.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 657

F1 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document
September 13, 2021 Filed Sep 15, 2021 23:36 UTC MEDIFAST INC MED · Entity 6587 GrantCommon Stock 109 $0.00 $0.00
Disclosure

SEC source: 0001104659-21-116030 · tm2127759-2_4seq1.xml · nonDerivative · entry 1

MacKenzie Jonathan Barrett · CIK 0001883230 · VP, Finance & CAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109

F1 · shares: Represents a grant of restricted stock units issued to the reporting person under the 2012 Share Incentive Plan that will vest in three equal annual installments beginning on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Read SEC document

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