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Lappe Mark

Disclosed activity across 2 companies

Tapewire entity
87508
SEC CIK
0001366074

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Inhibrx Biosciences, Inc.INBX · Entity 4576Director · Chief Executive OfficerOctober 14, 2026October 14, 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.

Inhibrx Biosciences, Inc.

Report date October 14, 2026 · Filed October 14, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy the Lappe Family Trust745,588 Last balance in matching sequence After 2026-10-14 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 1 · 2026-10-14 · Purchase · Acquired 2,470 · Balance 743,018

F1: The shares were purchased in multiple transactions at prices ranging from $83.61 to $84.59 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Row 2 · 2026-10-14 · Purchase · Acquired 2,470 · Balance 745,488

F3: The shares were purchased in multiple transactions at prices ranging from $84.65 to $85.62 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Row 3 · 2026-10-14 · Purchase · Acquired 100 · Balance 745,588

F2: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Common StockSEC Table I · non-derivativeIndirectBy Lappe Descendants' Trust170,000 Last balance in matching sequence After 2026-10-14 transaction · row 6 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 4 · 2026-10-14 · Purchase · Acquired 2,449 · Balance 167,449

F1: The shares were purchased in multiple transactions at prices ranging from $83.61 to $84.59 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F4: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Row 5 · 2026-10-14 · Purchase · Acquired 2,451 · Balance 169,900

F3: The shares were purchased in multiple transactions at prices ranging from $84.65 to $85.62 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F4: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Row 6 · 2026-10-14 · Purchase · Acquired 100 · Balance 170,000

F4: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Common StockSEC Table I · non-derivativeIndirectThe Mark Paul Lappe Roth IRA54,865 Reported balance Holding disclosure · report date 2026-10-14 · row 7 Holding and transaction disclosures are not merged.
1 source row

Row 7 · Balance 54,865

Filing footnotes · ownership attribution and instrument terms

F1: The shares were purchased in multiple transactions at prices ranging from $83.61 to $84.59 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

F3: The shares were purchased in multiple transactions at prices ranging from $84.65 to $85.62 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F4: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Inhibrx, Inc.

Report date May 30, 2024 · Filed May 30, 2024

Section 16 reporting ended · disclosed 2024-05-30. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy the Lappe Family Trust0 Reported balance After 2024-05-30 transaction · row 1 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 1 · 2024-05-30 · Disposition to issuer · Disposed 2,486,192 · Balance 0

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

F3: These securities were directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Common StockSEC Table I · non-derivativeIndirectBy trust0 Reported balance After 2024-05-30 transaction · row 2 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 2 · 2024-05-30 · Disposition to issuer · Disposed 500,000 · Balance 0

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

F4: These securities were directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Common StockSEC Table I · non-derivativeIndirectThe Mark Paul Lappe Roth IRA0 Reported balance After 2024-05-30 transaction · row 3 Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source row

Row 3 · 2024-05-30 · Disposition to issuer · Disposed 59,462 · Balance 0

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $23.30 · Expires 2033-01-03Direct0 Reported balance After 2024-05-30 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2024-05-30 · Disposition to issuer · Disposed 100,000 · Balance 0

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F6: This stock option was cancelled in the Merger and converted into the right to receive (A) an amount in cash, without interest and less any applicable withholding taxes, equal to the product of (x) the total number of shares of the Issuer's common stock subject to such stock option immediately prior to the Effective Time, multiplied by (y) the excess of (I) the Closing Amount over (II) the exercise price payable per share of the Issuer's common stock under such stock option and (B) one (1) CVR for each share of the Issuer common stock subject to such stock option.

F5: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 15, 2022, with the balance to vest and become exercisable in equal successive monthly installments for thirty-six (36) months thereafter.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $33.63 · Expires 2031-01-15Direct0 Reported balance After 2024-05-30 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2024-05-30 · Disposition to issuer · Disposed 145,000 · Balance 0

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F8: This stock option was canceled in the Merger and converted into the right to receive the contingent payment described in the following sentence. If the Milestone is achieved, the cash amount to be paid in respect of each such stock option will be equal to (x) $35.00 (representing the sum of the Closing Amount of $30.00 and the Milestone Payment of $5.00) minus (y) the option exercise price per share, subject to applicable tax withholding.

F7: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 3, 2024, with the balance to vest and become exercisable in equal successive monthly installments thirty-six (36) months thereafter.

Filing footnotes · ownership attribution and instrument terms

F1: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

F3: These securities were directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

F4: These securities were directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

F5: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 15, 2022, with the balance to vest and become exercisable in equal successive monthly installments for thirty-six (36) months thereafter.

F6: This stock option was cancelled in the Merger and converted into the right to receive (A) an amount in cash, without interest and less any applicable withholding taxes, equal to the product of (x) the total number of shares of the Issuer's common stock subject to such stock option immediately prior to the Effective Time, multiplied by (y) the excess of (I) the Closing Amount over (II) the exercise price payable per share of the Issuer's common stock under such stock option and (B) one (1) CVR for each share of the Issuer common stock subject to such stock option.

F7: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 3, 2024, with the balance to vest and become exercisable in equal successive monthly installments thirty-six (36) months thereafter.

F8: This stock option was canceled in the Merger and converted into the right to receive the contingent payment described in the following sentence. If the Milestone is achieved, the cash amount to be paid in respect of each such stock option will be equal to (x) $35.00 (representing the sum of the Closing Amount of $30.00 and the Milestone Payment of $5.00) minus (y) the option exercise price per share, subject to applicable tax withholding.

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
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 100 $85.76 $8,576.00
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 6

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 170,000

F4 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 2,451 $85.00 $208,333.04
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 5

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 169,900

F3 · price: The shares were purchased in multiple transactions at prices ranging from $84.65 to $85.62 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F4 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 2,449 $84.07 $205,889.14
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 167,449

F1 · price: The shares were purchased in multiple transactions at prices ranging from $83.61 to $84.59 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F4 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 100 $85.76 $8,576.00
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 745,588

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 2,470 $85.00 $209,948.02
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 745,488

F3 · price: The shares were purchased in multiple transactions at prices ranging from $84.65 to $85.62 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
October 14, 2026 Filed Oct 14, 2026 22:58 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 2,470 $84.07 $207,654.63
Disclosure

SEC source: 0001366074-26-000006 · wk-form4_1792018692.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 743,018

F1 · price: The shares were purchased in multiple transactions at prices ranging from $83.61 to $84.59 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 28, 2026 Filed Sep 28, 2026 21:47 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 3,000 $101.70 $305,106.00
Disclosure

SEC source: 0001366074-26-000004 · wk-form4_1790632047.xml · nonDerivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 740,548

F5 · price: The shares were purchased in multiple transactions at prices ranging from $101.44 to $101.80 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 28, 2026 Filed Sep 28, 2026 21:47 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 1,500 $98.88 $148,320.45
Disclosure

SEC source: 0001366074-26-000004 · wk-form4_1790632047.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 737,548

F4 · price: The shares were purchased in multiple transactions at prices ranging from $98.69 to $99.21 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 25, 2026 Filed Sep 28, 2026 21:47 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 2,176 $99.60 $216,726.99
Disclosure

SEC source: 0001366074-26-000004 · wk-form4_1790632047.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 736,048

F3 · price: The shares were purchased in multiple transactions at prices ranging from $99.335 to $100.00 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 25, 2026 Filed Sep 28, 2026 21:47 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 3,324 $98.87 $328,630.25
Disclosure

SEC source: 0001366074-26-000004 · wk-form4_1790632047.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 733,872

F1 · price: The shares were purchased in multiple transactions at prices ranging from $98.27 to $99.26 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 9,681 $112.28 $1,087,001.07
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 6

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 730,548

F7 · price: The shares were purchased in multiple transactions at prices ranging from $112.15 to $112.44 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 1,219 $111.88 $136,382.33
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 5

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 720,867

F6 · price: The shares were purchased in multiple transactions at prices ranging from $111.15 to $112.07 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 500 $108.24 $54,117.50
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 719,648

F5 · price: The shares were purchased in multiple transactions at prices ranging from $108.05 to $108.66 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 1,100 $107.12 $117,836.29
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 719,148

F4 · price: The shares were purchased in multiple transactions at prices ranging from $106.6225 to $107.57 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 6,605 $100.64 $664,719.27
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 718,048

F3 · price: The shares were purchased in multiple transactions at prices ranging from $100.095 to $100.99 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 08, 2026 Filed Sep 8, 2026 20:04 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 5,895 $99.29 $585,342.85
Disclosure

SEC source: 0001366074-26-000002 · wk-form4_1788897881.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 711,443

F1 · price: The shares were purchased in multiple transactions at prices ranging from $98.88 to $99.8316 inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 16, 2024 Filed Sep 16, 2024 17:12 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 13,037 $17.13 $223,323.81
Disclosure

SEC source: 0002007919-24-000049 · wk-form4_1726521147.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 705,548

F3 · price: The shares were purchased in multiple transactions at prices ranging from $16.70 to $17.695, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 12, 2024 Filed Sep 16, 2024 17:12 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 26,963 $15.05 $405,793.15
Disclosure

SEC source: 0002007919-24-000049 · wk-form4_1726521147.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 692,511

F1 · price: The shares were purchased in multiple transactions at prices ranging from $15.00 to $15.10, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 10, 2024 Filed Sep 10, 2024 17:00 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 8,500 $15.19 $129,115.00
Disclosure

SEC source: 0002007919-24-000045 · wk-form4_1726002051.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 665,548

F4 · price: The shares were purchased in multiple transactions at prices ranging from $15.01 to $15.26, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 09, 2024 Filed Sep 10, 2024 17:00 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 9,500 $15.21 $144,495.00
Disclosure

SEC source: 0002007919-24-000045 · wk-form4_1726002051.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 657,048

F3 · price: The shares were purchased in multiple transactions at prices ranging from $15.08 to $15.50, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 06, 2024 Filed Sep 10, 2024 17:00 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 26,000 $15.29 $397,540.00
Disclosure

SEC source: 0002007919-24-000045 · wk-form4_1726002051.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 647,548

F1 · price: The shares were purchased in multiple transactions at prices ranging from $15.04 to $15.70, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
September 03, 2024 Filed Sep 3, 2024 17:31 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 4,712 $16.31 $76,852.72
Disclosure

SEC source: 0001739614-24-000037 · wk-form4_1725399057.xml · nonDerivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 165,000

F5 · price: The shares were purchased in multiple transactions at prices ranging from $16.115 to $16.465, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
September 03, 2024 Filed Sep 3, 2024 17:31 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 15,288 $15.66 $239,410.08
Disclosure

SEC source: 0001739614-24-000037 · wk-form4_1725399057.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 160,288

F4 · price: The shares were purchased in multiple transactions at prices ranging from $15.115 to $16.11, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
August 30, 2024 Filed Sep 3, 2024 17:31 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 10,000 $14.02 $140,200.00
Disclosure

SEC source: 0001739614-24-000037 · wk-form4_1725399057.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 145,000

F3 · price: The shares were purchased in multiple transactions at prices ranging from $13.96 to $14.13, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
August 29, 2024 Filed Sep 3, 2024 17:31 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 10,000 $14.03 $140,300.00
Disclosure

SEC source: 0001739614-24-000037 · wk-form4_1725399057.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By Lappe Descendants' Trust

Disclosed balance after: 135,000

F1 · price: The shares were purchased in multiple transactions at prices ranging from $13.9079 to $14.245, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
August 21, 2024 Filed Aug 22, 2024 16:29 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 12,945 $12.93 $167,378.85
Disclosure

SEC source: 0002007919-24-000038 · wk-form4_1724358581.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · The Mark Paul Lappe Roth IRA

Disclosed balance after: 54,865

F2 · price: The shares were purchased in multiple transactions at prices ranging from $12.82 to $13.10, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

Read SEC document
August 20, 2024 Filed Aug 22, 2024 16:29 UTC Inhibrx Biosciences, Inc. INBX · Entity 4576 PurchaseCommon Stock 27,055 $12.97 $350,903.35
Disclosure

SEC source: 0002007919-24-000038 · wk-form4_1724358581.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · The Mark Paul Lappe Roth IRA

Disclosed balance after: 41,920

F1 · price: The shares were purchased in multiple transactions at prices ranging from $12.77 to $13.14, inclusive. The reported price reflects the weighted-average purchase price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:22 UTC Inhibrx, Inc. INBX · Entity 90351 Disposition to issuerStock Option (right to buy) · Derivative 145,000 Not disclosed Strike: $33.63 Not disclosed
Disclosure

SEC source: 0000950142-24-001500 · es240484812_4-lappe.xml · derivative · entry 5

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 145,000 shares

Expires 2031-01-15

F1 · kind: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F8 · price: This stock option was canceled in the Merger and converted into the right to receive the contingent payment described in the following sentence. If the Milestone is achieved, the cash amount to be paid in respect of each such stock option will be equal to (x) $35.00 (representing the sum of the Closing Amount of $30.00 and the Milestone Payment of $5.00) minus (y) the option exercise price per share, subject to applicable tax withholding.

F7 · derivative.exercise_date: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 3, 2024, with the balance to vest and become exercisable in equal successive monthly installments thirty-six (36) months thereafter.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:22 UTC Inhibrx, Inc. INBX · Entity 90351 Disposition to issuerStock Option (right to buy) · Derivative 100,000 Not disclosed Strike: $23.30 Not disclosed
Disclosure

SEC source: 0000950142-24-001500 · es240484812_4-lappe.xml · derivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 100,000 shares

Expires 2033-01-03

F1 · kind: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F6 · price: This stock option was cancelled in the Merger and converted into the right to receive (A) an amount in cash, without interest and less any applicable withholding taxes, equal to the product of (x) the total number of shares of the Issuer's common stock subject to such stock option immediately prior to the Effective Time, multiplied by (y) the excess of (I) the Closing Amount over (II) the exercise price payable per share of the Issuer's common stock under such stock option and (B) one (1) CVR for each share of the Issuer common stock subject to such stock option.

F5 · derivative.exercise_date: Twenty-five percent (25%) of the total shares subject to the stock option became exercisable on January 15, 2022, with the balance to vest and become exercisable in equal successive monthly installments for thirty-six (36) months thereafter.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:22 UTC Inhibrx, Inc. INBX · Entity 90351 Disposition to issuerCommon Stock 59,462 $30.00 $1,783,860.00
Disclosure

SEC source: 0000950142-24-001500 · es240484812_4-lappe.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · The Mark Paul Lappe Roth IRA

Disclosed balance after: 0

F1 · kind: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2 · price: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:22 UTC Inhibrx, Inc. INBX · Entity 90351 Disposition to issuerCommon Stock 500,000 $30.00 $15,000,000.00
Disclosure

SEC source: 0000950142-24-001500 · es240484812_4-lappe.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By trust

Disclosed balance after: 0

F1 · kind: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2 · price: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

F4 · ownership.nature: These securities were directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:22 UTC Inhibrx, Inc. INBX · Entity 90351 Disposition to issuerCommon Stock 2,486,192 $30.00 $74,585,760.00
Disclosure

SEC source: 0000950142-24-001500 · es240484812_4-lappe.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 0

F1 · kind: Under the Agreement and Plan of Merger, dated January 22, 2024 (the "Merger Agreement"), by and among Inhibrx, Inc. (the "Issuer"), Aventis Inc., a Pennsylvania corporation ("Parent") and wholly owned subsidiary of Sanofi, and Art Acquisition Sub, Inc., a Delaware corporation ("Merger Sub") and wholly owned subsidiary of Parent, following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on May 30, 2024, Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2 · price: In the Merger, each share of common stock of the Issuer that was outstanding immediately prior to the effective time of the Merger (the "Effective Time") (other than (A) the Issuer's common stock owned by the Issuer as treasury shares, (B) the Issuer's common stock owned by Parent or Merger Sub and (C) any dissenting shares), was automatically cancelled, extinguished and converted into the right to receive (i) an amount in cash equal to $30.00, without interest thereon (the "Closing Amount"), plus (ii) one (1) contractual contingent value right ("CVR") representing the right to receive a contingent payment of $5.00, without interest thereon, in cash (the "Milestone Payment"), upon the achievement of certain regulatory milestones ("Milestone") set forth in the Contingent Value Rights Agreement between Parent and Continental Stock Transfer & Trust Company.

F3 · ownership.nature: These securities were directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
May 30, 2024 Filed May 30, 2024 18:10 UTC Inhibrx Biosciences, Inc. INXB · Entity 4576 GrantStock Option (right to buy) · Derivative 300,000 $0.00 Strike: $15.86 $0.00
Disclosure

SEC source: 0000950142-24-001493 · es240484863_4-lappe.xml · derivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Common Stock · 300,000 shares

Expires 2034-05-30

F4 · date: This stock option was granted following the consummation of the merger of Inhibrx, Inc. with a wholly owned indirect subsidiary of Sanofi.

F5 · derivative.exercise_date: Twenty-five percent (25%) of the total shares subject to this stock option will become exercisable on May 30, 2025, with the balance to vest and become exercisable in equal successive monthly installments for thirty-six (36) months thereafter.

Read SEC document
May 29, 2024 Filed May 30, 2024 18:10 UTC Inhibrx Biosciences, Inc. INXB · Entity 4576 GrantCommon Stock 14,865 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-001493 · es240484863_4-lappe.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · The Mark Paul Lappe Roth IRA

Disclosed balance after: 14,865

F1 · price: The transactions reported herein are the result of the consummation on May 29, 2024 of the distribution by Inhibrx, Inc. of 92% of the issued and outstanding shares of common stock of its subsidiary, Inhibrx Biosciences, Inc. (the "Issuer"), to holders of shares of Inhibrx, Inc.'s common stock as of the distribution record date of May 17, 2024, on a pro rata basis, at a ratio of one share of the Company's common stock for every four shares of Inhibrx, Inc.'s issued and outstanding common stock held on the distribution record date. These transactions are voluntarily reported notwithstanding the exemption provided by Rule 16a-9.

Read SEC document
May 29, 2024 Filed May 30, 2024 18:10 UTC Inhibrx Biosciences, Inc. INXB · Entity 4576 GrantCommon Stock 125,000 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-001493 · es240484863_4-lappe.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By trust

Disclosed balance after: 125,000

F1 · price: The transactions reported herein are the result of the consummation on May 29, 2024 of the distribution by Inhibrx, Inc. of 92% of the issued and outstanding shares of common stock of its subsidiary, Inhibrx Biosciences, Inc. (the "Issuer"), to holders of shares of Inhibrx, Inc.'s common stock as of the distribution record date of May 17, 2024, on a pro rata basis, at a ratio of one share of the Company's common stock for every four shares of Inhibrx, Inc.'s issued and outstanding common stock held on the distribution record date. These transactions are voluntarily reported notwithstanding the exemption provided by Rule 16a-9.

F3 · ownership.nature: These securities are directly owned by a trust, for the benefit of the reporting person's immediate family. Mark P. Lappe, as an immediate family member of the beneficiaries of the trust, may be deemed to indirectly beneficially own the securities owned by the trust.

Read SEC document
May 29, 2024 Filed May 30, 2024 18:10 UTC Inhibrx Biosciences, Inc. INXB · Entity 4576 GrantCommon Stock 621,548 Not disclosed Not disclosed
Disclosure

SEC source: 0000950142-24-001493 · es240484863_4-lappe.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 621,548

F1 · price: The transactions reported herein are the result of the consummation on May 29, 2024 of the distribution by Inhibrx, Inc. of 92% of the issued and outstanding shares of common stock of its subsidiary, Inhibrx Biosciences, Inc. (the "Issuer"), to holders of shares of Inhibrx, Inc.'s common stock as of the distribution record date of May 17, 2024, on a pro rata basis, at a ratio of one share of the Company's common stock for every four shares of Inhibrx, Inc.'s issued and outstanding common stock held on the distribution record date. These transactions are voluntarily reported notwithstanding the exemption provided by Rule 16a-9.

F2 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
February 28, 2023 Filed Mar 1, 2023 16:41 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 60 $25.02 $1,501.25
Disclosure

SEC source: 0001739614-23-000014 · wf-form4_167770687699240.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,486,192

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F2 · price: The shares were sold in multiple transactions at prices ranging from $25.005 to $25.07, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

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January 24, 2023 Filed Jan 24, 2023 18:46 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 63 $26.11 $1,645.10
Disclosure

SEC source: 0001739614-23-000010 · wf-form4_167460394406722.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,486,252

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F5 · price: The shares were sold in multiple transactions at prices ranging from $26.105 to $26.13, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

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January 24, 2023 Filed Jan 24, 2023 18:46 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 4,272 $25.71 $109,833.12
Disclosure

SEC source: 0001739614-23-000010 · wf-form4_167460394406722.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,486,315

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F4 · price: The shares were sold in multiple transactions at prices ranging from $25.105 to $26.10, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
January 23, 2023 Filed Jan 24, 2023 18:46 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 21,665 $25.36 $549,363.74
Disclosure

SEC source: 0001739614-23-000010 · wf-form4_167460394406722.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,490,587

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F2 · price: The shares were sold in multiple transactions at prices ranging from $25.00 to $25.61, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

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January 03, 2023 Filed Jan 3, 2023 18:11 UTC Inhibrx, Inc. INBX · Entity 90351 GrantStock Option (right to buy) · Derivative 100,000 $0.00 Strike: $23.30 $0.00
Disclosure

SEC source: 0001739614-23-000004 · wf-form4_167278749618241.xml · derivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Stock · 100,000 shares

Expires 2033-01-03

F1 · derivative.exercise_date: Twenty-five percent (25%) of the total shares subject to the stock option become exercisable on January 3, 2024, with the balance to vest and become exercisable in equal successive monthly installments forthirty-six (36) months thereafter.

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December 19, 2022 Filed Dec 20, 2022 16:59 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 754 $26.29 $19,819.57
Disclosure

SEC source: 0001739614-22-000130 · wf-form4_167157357332535.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,512,252

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F4 · price: The shares were sold in multiple transactions at prices ranging from $26.00 to $26.86, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
December 19, 2022 Filed Dec 20, 2022 16:59 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 25,246 $25.53 $644,623.79
Disclosure

SEC source: 0001739614-22-000130 · wf-form4_167157357332535.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,513,006

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F2 · price: The shares were sold in multiple transactions at prices ranging from $25.00 to $25.99, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 1,150 $32.38 $37,241.26
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 7

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,538,252

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F9 · price: The shares were sold in multiple transactions at prices ranging from $31.97 to $32.75, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 912 $30.67 $27,969.22
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 6

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,539,402

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F8 · price: The shares were sold in multiple transactions at prices ranging from $30.52 to $30.68, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 6,773 $30.15 $204,195.79
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 5

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,540,314

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F7 · price: The shares were sold in multiple transactions at prices ranging from $29.47 to $30.31, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 1,767 $28.86 $50,991.03
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 4

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,547,087

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F6 · price: The shares were sold in multiple transactions at prices ranging from $28.47 to $29.40, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 4,333 $27.45 $118,937.38
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 3

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,548,854

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F5 · price: The shares were sold in multiple transactions at prices ranging from $27.04 to $28.00, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 4,106 $26.57 $109,097.65
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 2

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,553,187

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F4 · price: The shares were sold in multiple transactions at prices ranging from $26.01 to $26.96, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

Read SEC document
November 17, 2022 Filed Nov 18, 2022 17:06 UTC Inhibrx, Inc. INBX · Entity 90351 SaleCommon Stock 6,959 $25.36 $176,477.46
Disclosure

SEC source: 0001739614-22-000124 · wf-form4_166880918186617.xml · nonDerivative · entry 1

Lappe Mark · CIK 0001366074 · Director · Chief Executive Officer

Lappe Family Trust · CIK 0001821266 · To be Verified

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Lappe Family Trust

Disclosed balance after: 2,557,293

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mark P. Lappe.

F2 · price: The shares were sold in multiple transactions at prices ranging from $25.00 to $25.985, inclusive. The reported price reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F3 · ownership.nature: These securities are directly owned by the Lappe Family Trust. Mark P. Lappe is a trustee of the Lappe Family Trust and, in such capacity, may be deemed to indirectly beneficially own the securities owned by the Lappe Family Trust.

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.