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person · Reporting owner

DING CHUN R

Disclosed activity across 1 company

Tapewire entity
77707
SEC CIK
0001250077

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Reported relationships

Latest disclosed role at each company.

No relationships currently tracked through insider filings.

Disclosed balances

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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.

No balances currently tracked through insider filings.

Past disclosures · reporting ended (1)

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

GRAIL, Inc.

Report date July 01, 2025 · Filed July 03, 2025

Section 16 reporting ended · disclosed 2025-07-03. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectSee Footnotes3,305,055 Last balance in matching sequence After 2025-07-01 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
3 source rows

Row 1 · 2025-07-01 · Sale · Disposed 51,125 · Balance 3,593,730

F3: On July 1, 2025, the CRCM Funds sold 51,125 shares of common stock in a series of transactions at prices ranging from $48.09 to $49.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

Row 2 · 2025-07-01 · Sale · Disposed 260,832 · Balance 3,332,898

F4: On July 1, 2025, the CRCM Funds sold 260,832 shares of common stock in a series of transactions at prices ranging from $49.09 to $50.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

Row 3 · 2025-07-01 · Sale · Disposed 27,843 · Balance 3,305,055

F5: On July 1, 2025, the CRCM Funds sold 27,843 shares of common stock in a series of transactions at prices ranging from $50.09 to $50.53 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

F3: On July 1, 2025, the CRCM Funds sold 51,125 shares of common stock in a series of transactions at prices ranging from $48.09 to $49.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F4: On July 1, 2025, the CRCM Funds sold 260,832 shares of common stock in a series of transactions at prices ranging from $49.09 to $50.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F5: On July 1, 2025, the CRCM Funds sold 27,843 shares of common stock in a series of transactions at prices ranging from $50.09 to $50.53 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

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
July 01, 2025 Filed Jul 3, 2025 20:31 UTC GRAIL, Inc. GRAL · Entity 4122 SaleCommon Stock 27,843 $50.25 $1,399,110.75
Disclosure

SEC source: 0002075648-25-000002 · form4.xml · nonDerivative · entry 3

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,305,055

F5 · price: On July 1, 2025, the CRCM Funds sold 27,843 shares of common stock in a series of transactions at prices ranging from $50.09 to $50.53 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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July 01, 2025 Filed Jul 3, 2025 20:31 UTC GRAIL, Inc. GRAL · Entity 4122 SaleCommon Stock 260,832 $49.58 $12,932,050.56
Disclosure

SEC source: 0002075648-25-000002 · form4.xml · nonDerivative · entry 2

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,332,898

F4 · price: On July 1, 2025, the CRCM Funds sold 260,832 shares of common stock in a series of transactions at prices ranging from $49.09 to $50.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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July 01, 2025 Filed Jul 3, 2025 20:31 UTC GRAIL, Inc. GRAL · Entity 4122 SaleCommon Stock 51,125 $48.88 $2,498,990.00
Disclosure

SEC source: 0002075648-25-000002 · form4.xml · nonDerivative · entry 1

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,593,730

F3 · price: On July 1, 2025, the CRCM Funds sold 51,125 shares of common stock in a series of transactions at prices ranging from $48.09 to $49.08 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. Following the transactions reported in this Form 4, the CRCM Funds and separately managed accounts held directly in the aggregate 3,305,055 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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October 09, 2024 Filed Oct 10, 2024 23:45 UTC GRAIL, Inc. GRAL · Entity 4122 PurchaseCommon Stock 16,200 $12.92 $209,304.00
Disclosure

SEC source: 0000898432-24-000825 · form4.xml · nonDerivative · entry 5

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,644,855

F8 · price: On October 9, 2024, the CRCM Funds acquired 16,200 shares of common stock in a series of transactions at prices ranging from $12.73 to $13.14 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. The CRCM Funds and separately managed accounts hold directly in the aggregate 3,644,855 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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October 03, 2024 Filed Oct 10, 2024 23:45 UTC GRAIL, Inc. GRAL · Entity 4122 OtherCommon Stock 70,000 $12.57 $879,900.00
Disclosure

SEC source: 0000898432-24-000825 · form4.xml · nonDerivative · entry 4

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,628,655

F6 · kind: The shares of the common stock were contributed by a limited partner of a CRCM Fund to the CRCM Funds as an in-kind subscription for ownership interests in such fund.

F7 · price: Represents the closing price per share of the common stock on the date on which the shares were contributed.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. The CRCM Funds and separately managed accounts hold directly in the aggregate 3,644,855 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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October 03, 2024 Filed Oct 10, 2024 23:45 UTC GRAIL, Inc. GRAL · Entity 4122 PurchaseCommon Stock 35,000 $12.71 $444,850.00
Disclosure

SEC source: 0000898432-24-000825 · form4.xml · nonDerivative · entry 3

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,558,655

F5 · price: On October 3, 2024, the CRCM Funds acquired 35,000 shares of common stock in a series of transactions at prices ranging from $12.57 to $13.03 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. The CRCM Funds and separately managed accounts hold directly in the aggregate 3,644,855 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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October 02, 2024 Filed Oct 10, 2024 23:45 UTC GRAIL, Inc. GRAL · Entity 4122 PurchaseCommon Stock 20,000 $13.37 $267,400.00
Disclosure

SEC source: 0000898432-24-000825 · form4.xml · nonDerivative · entry 2

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,523,655

F4 · price: On October 2, 2024, the CRCM Funds acquired 20,000 shares of common stock in a series of transactions at prices ranging from $13.10 to $13.54 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. The CRCM Funds and separately managed accounts hold directly in the aggregate 3,644,855 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

Read SEC document
October 01, 2024 Filed Oct 10, 2024 23:45 UTC GRAIL, Inc. GRAL · Entity 4122 PurchaseCommon Stock 7,629 $13.52 $103,144.08
Disclosure

SEC source: 0000898432-24-000825 · form4.xml · nonDerivative · entry 1

DING CHUN R · CIK 0001250077 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 3,503,655

F3 · price: On October 1, 2024, the CRCM Funds acquired 7,629 shares of common stock in a series of transactions at prices ranging from $13.25 to $13.81 per share. The price reported in Column 4 is a weighted average price. The detailed breakdown of executed transactions will be furnished upon request.

F1 · ownership.nature: Securities are owned directly by funds (the "CRCM Funds") and separately managed accounts managed by CRCM LP, a Delaware limited partnership and a registered investment adviser with the U.S. Securities and Exchange Commission (the "Investment Manager"). The Reporting Person holds ownership interests in the CRCM Funds. The Reporting Person is the managing partner of the Investment Manager and may be deemed to have an indirect pecuniary interest in a percentage of the securities held by the CRCM Funds. The CRCM Funds and separately managed accounts hold directly in the aggregate 3,644,855 shares of common stock of the Issuer ("common stock"). The Reporting Person may be deemed to beneficially own a percentage of shares of common stock by virtue of his proportional interest in the CRCM Funds.

F2 · ownership.nature: The Reporting Person disclaims any beneficial ownership of any of the Issuer's securities reported herein, or otherwise, except as to securities representing the Reporting Person's proportional interest in the CRCM Funds, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such other securities of the Issuer for purposes of Section 16 or for any other purpose.

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