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person · Reporting owner

Lynch Desmond

Disclosed activity across 2 companies

Tapewire entity
49598
SEC CIK
0001941085

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Astera Labs, Inc.ALAB · Entity 1853Chief Financial OfficerMay 01, 2026May 05, 2026
RAMBUS INCRMBS · Entity 3575SVP, CFOFebruary 23, 2026February 24, 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.

Astera Labs, Inc.

Report date May 01, 2026 · Filed May 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect49,584 Ending reported balance After 2026-05-01 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-05-01 · Grant · Acquired 42,501 · Balance 42,501

F1: These shares represent an award of restricted stock units ("RSUs") granted on May 1, 2026 under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan (the "Plan"). Such award provides that the RSUs shall vest as to 25% on February 15, 2027 and the remaining RSUs shall vest in 12 equal quarterly installments thereafter, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

Row 2 · 2026-05-01 · Grant · Acquired 7,083 · Balance 49,584

F2: These shares represent an award of RSUs granted on May 1, 2026 under the Plan. Such award provides that the RSUs shall vest as to 100% on February 15, 2027, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

Filing footnotes · ownership attribution and instrument terms

F1: These shares represent an award of restricted stock units ("RSUs") granted on May 1, 2026 under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan (the "Plan"). Such award provides that the RSUs shall vest as to 25% on February 15, 2027 and the remaining RSUs shall vest in 12 equal quarterly installments thereafter, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

F2: These shares represent an award of RSUs granted on May 1, 2026 under the Plan. Such award provides that the RSUs shall vest as to 100% on February 15, 2027, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

RAMBUS INC

Report date February 23, 2026 · Filed February 24, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect63,618 Reported balance After 2026-02-23 transaction · row 1
1 source row

Row 1 · 2026-02-23 · Sale · Disposed 4,273 · Balance 63,618

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 19, 2025.

F2: All shares sold at $101.53

Filing footnotes · ownership attribution and instrument terms

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 19, 2025.

F2: All shares sold at $101.53

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
May 01, 2026 Filed May 5, 2026 23:01 UTC Astera Labs, Inc. ALAB · Entity 1853 GrantCommon Stock 7,083 $0.00 $0.00
Disclosure

SEC source: 0001941085-26-000007 · wk-form4_1778022109.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,584

F2 · shares: These shares represent an award of RSUs granted on May 1, 2026 under the Plan. Such award provides that the RSUs shall vest as to 100% on February 15, 2027, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

Read SEC document
May 01, 2026 Filed May 5, 2026 23:01 UTC Astera Labs, Inc. ALAB · Entity 1853 GrantCommon Stock 42,501 $0.00 $0.00
Disclosure

SEC source: 0001941085-26-000007 · wk-form4_1778022109.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,501

F1 · shares: These shares represent an award of restricted stock units ("RSUs") granted on May 1, 2026 under the Astera Labs, Inc. 2024 Stock Option and Incentive Plan (the "Plan"). Such award provides that the RSUs shall vest as to 25% on February 15, 2027 and the remaining RSUs shall vest in 12 equal quarterly installments thereafter, subject to the Reporting Person's continuous service relationship with the Issuer through each applicable vesting date. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock.

Read SEC document
February 23, 2026 Filed Feb 24, 2026 18:15 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 4,273 $101.53 $433,837.69
Disclosure

SEC source: 0001193125-26-066434 · ownership.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,618

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on November 19, 2025.

F2 · price: All shares sold at $101.53

Read SEC document
February 01, 2026 Filed Feb 4, 2026 02:17 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 22,105 $113.71 $2,513,559.55
Disclosure

SEC source: 0001193125-26-036430 · ownership.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,891

F3 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
February 01, 2026 Filed Feb 4, 2026 02:17 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 34,554 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-036430 · ownership.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,996

F1 · shares: The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2026 based upon assessed achievement of the Company's performance metrics and continued service to the Company through the vesting date. Each PRSU represents a contingent right to receive one share of RMBS common stock.

F2 · balance_after: Includes an exempt transaction of 86 shares acquired through the Rambus, Inc. 2015 Employee Stock Purchase Plan

Read SEC document
October 06, 2025 Filed Oct 6, 2025 20:08 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 3,607 $101.99 $367,886.59
Disclosure

SEC source: 0001193125-25-231877 · ownership.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,356

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.82 to $102.13, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities or Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
October 06, 2025 Filed Oct 6, 2025 20:08 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 5,467 $101.17 $553,086.00
Disclosure

SEC source: 0001193125-25-231877 · ownership.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,963

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $100.75 to $101.665, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities or Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
September 15, 2025 Filed Sep 16, 2025 21:46 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 9,074 $91.70 $832,098.50
Disclosure

SEC source: 0001193125-25-205166 · ownership.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,430

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on June 13, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in mulitple transactions at prices ranging from $88.125 to $94.50, inclusive.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 23:30 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,725 $73.49 $200,246.63
Disclosure

SEC source: 0001941085-25-000005 · ownership.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,504

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes an exempt transaction of 431 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase Plan.

Read SEC document
May 05, 2025 Filed May 6, 2025 20:53 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 3,118 $50.31 $156,866.58
Disclosure

SEC source: 0000917273-25-000077 · wk-form4_1746564803.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,798

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024.

F2 · price: All shares traded at $50.31.

Read SEC document
April 01, 2025 Filed Apr 3, 2025 19:23 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 1,829 $52.29 $95,638.41
Disclosure

SEC source: 0000917273-25-000049 · wk-form4_1743708217.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,916

F2 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
April 01, 2025 Filed Apr 3, 2025 19:23 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 18,167 $0.00 $0.00
Disclosure

SEC source: 0000917273-25-000049 · wk-form4_1743708217.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,745

F1 · shares: The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2026 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock.

Read SEC document
March 14, 2025 Filed Mar 17, 2025 21:48 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 3,743 $53.27 $199,389.61
Disclosure

SEC source: 0000917273-25-000024 · wk-form4_1742248132.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,578

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 13, 2024.

F2 · price: All shares traded at $53.27

Read SEC document
February 01, 2025 Filed Feb 5, 2025 00:11 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 26,111 $60.35 $1,575,798.85
Disclosure

SEC source: 0000917273-25-000013 · wk-form4_1738714277.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,321

F3 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
February 01, 2025 Filed Feb 5, 2025 00:11 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 39,072 $0.00 $0.00
Disclosure

SEC source: 0000917273-25-000013 · wk-form4_1738714277.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,432

F1 · shares: The shares are represented by performance restricted stock units, or PRSUs, all of which vest on February 1, 2025 based upon assessed achievement of the Company's performance metrics and continued service to the Company through the vesting date. Each PRSU represents a contingent right to receive one share of RMBS common stock.

F2 · balance_after: Includes an exempt transaction of 83 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan.

Read SEC document
September 03, 2024 Filed Sep 4, 2024 19:45 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,720 $40.58 $110,377.60
Disclosure

SEC source: 0000917273-24-000102 · wk-form4_1725479123.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 53,277

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes an exempt transaction of 380 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan.

Read SEC document
April 01, 2024 Filed Apr 2, 2024 17:09 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 13,659 $0.00 $0.00
Disclosure

SEC source: 0000917273-24-000054 · wk-form4_1712077757.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,617

F1 · shares: The shares are represented by RSUs which vest in four equal annual installments beginning on April 1, 2025 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock.

Read SEC document
March 11, 2024 Filed Mar 12, 2024 17:08 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 7,646 $62.18 $475,399.23
Disclosure

SEC source: 0000917273-24-000038 · wk-form4_1710263273.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,958

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $61.16 to $62.53, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
March 11, 2024 Filed Mar 12, 2024 17:08 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 191 $62.25 $11,890.09
Disclosure

SEC source: 0000917273-24-000038 · wk-form4_1710263273.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 49,604

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2023.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $62.24 to $62.33, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
March 04, 2024 Filed Mar 5, 2024 17:48 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,406 $63.09 $151,794.54
Disclosure

SEC source: 0000917273-24-000032 · wk-form4_1709660890.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,795

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
February 01, 2024 Filed Feb 2, 2024 23:36 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 5,159 $68.15 $351,585.85
Disclosure

SEC source: 0000917273-24-000007 · wk-form4_1706917004.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,201

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
December 08, 2023 Filed Dec 11, 2023 16:37 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 6,838 $64.78 $442,942.39
Disclosure

SEC source: 0000917273-23-000045 · wk-form4_1702312616.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 57,360

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on September 7, 2023.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.03 to $65.525, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Read SEC document
December 07, 2023 Filed Dec 11, 2023 16:37 UTC RAMBUS INC RMBS · Entity 3575 SaleCommon Stock 1,527 $64.64 $98,705.28
Disclosure

SEC source: 0000917273-23-000045 · wk-form4_1702312616.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,198

F1 · kind: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted on September 7, 2023.

F2 · balance_after: Includes an exempt transaction of 191 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan.

Read SEC document
September 01, 2023 Filed Sep 6, 2023 15:15 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,664 $57.26 $152,540.64
Disclosure

SEC source: 0001209191-23-048271 · doc4.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,534

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes an exempt transaction of 498 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan.

Read SEC document
March 02, 2023 Filed Mar 3, 2023 20:07 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,356 $44.49 $104,818.44
Disclosure

SEC source: 0001209191-23-015301 · doc4.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,700

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

Read SEC document
February 01, 2023 Filed Feb 3, 2023 02:26 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 17,277 $0.00 $0.00
Disclosure

SEC source: 0001209191-23-006467 · doc4.xml · nonDerivative · entry 2

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,056

F3 · shares: The shares are represented by RSUs which vest in four equal annual installments beginning on February 1, 2024 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS common stock.

Read SEC document
February 01, 2023 Filed Feb 3, 2023 02:26 UTC RAMBUS INC RMBS · Entity 3575 Tax withholdingCommon Stock 2,873 $43.41 $124,716.93
Disclosure

SEC source: 0001209191-23-006467 · doc4.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,779

F1 · kind: The shares were withheld to cover the Reporting Person's tax liability in connection with the vesting of restricted stock units, or RSUs.

F2 · balance_after: Includes an exempt transaction of 407 shares acquired through the Rambus Inc. 2015 Employee Stock Purchase plan.

Read SEC document
September 01, 2022 Filed Sep 6, 2022 17:12 UTC RAMBUS INC RMBS · Entity 3575 GrantCommon Stock 20,350 $0.00 $0.00
Disclosure

SEC source: 0001209191-22-048662 · doc4.xml · nonDerivative · entry 1

Lynch Desmond · CIK 0001941085 · SVP, CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,245

F1 · shares: Shares are represented by RSUs which vest in four equal annual installments beginning on September 1, 2023 or the first business trading day thereafter. Each RSU represents a contingent right to receive one share of RMBS 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.