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Altmeyer Mark

Disclosed activity across 3 companies

Tapewire entity
37256
SEC CIK
0001643074

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Alector, Inc.ALEC · Entity 6051DirectorJune 17, 2026June 17, 2026
Myovant Sciences Ltd.MYOV · Entity 115677DirectorAugust 31, 2018September 04, 2018
Sio Gene Therapies Inc.AXON · Entity 130622Pres (ASG) & Chief Comm. Ofc.March 15, 2018March 16, 2018

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.

Alector, Inc.

Report date June 17, 2026 · Filed June 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect98,650 Reported balance After 2026-06-17 transaction · row 1
1 source row

Row 1 · 2026-06-17 · Grant · Acquired 28,700 · Balance 98,650

F1: The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 17, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $0.00 · Expires 2036-06-16Direct9,450 Reported balance After 2026-06-17 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-06-17 · Grant · Acquired 9,450 · Balance 9,450

F2: The shares subject to the option vest in 12 equal monthly installments beginning on July 17, 2026, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.

Filing footnotes · ownership attribution and instrument terms

F1: The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 17, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders.

F2: The shares subject to the option vest in 12 equal monthly installments beginning on July 17, 2026, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.

Myovant Sciences Ltd.

Report date August 31, 2018 · Filed September 04, 2018

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $24.25 · Expires 2028-08-30Direct22,500 Reported balance After 2018-08-31 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2018-08-31 · Grant · Acquired 22,500 · Balance 22,500

F1: 100% of the shares underlying the option vest and become exercisable on the earlier of (a) August 31, 2019, and (b) the date that is one day prior to the Issuer's 2019 Annual General Meeting of Shareholders, subject to the Reporting Person providing continuous service to the Issuer on such date.

Filing footnotes · ownership attribution and instrument terms

F1: 100% of the shares underlying the option vest and become exercisable on the earlier of (a) August 31, 2019, and (b) the date that is one day prior to the Issuer's 2019 Annual General Meeting of Shareholders, subject to the Reporting Person providing continuous service to the Issuer on such date.

Sio Gene Therapies Inc.

Report date March 15, 2018 · Filed March 16, 2018

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Employee Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.46 · Expires 2028-03-15Direct340,000 Reported balance After 2018-03-15 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2018-03-15 · Grant · Acquired 340,000 · Balance 340,000

F1: The option vests over a period of four years, with one quarter of the common shares underlying the option vesting on March 15, 2019 and the remainder vesting in twelve equal quarterly installments thereafter, subject to the Reporting Person providing continuous service to the Issuer as of each such date.

F2: The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying the option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

Employee Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.46 · Expires 2028-03-15Direct100,000 Reported balance After 2018-03-15 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2018-03-15 · Grant · Acquired 100,000 · Balance 100,000

F2: The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying the option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

F3: One-third of the option will vest at such time as the Issuer's stock price is equal to $4.38; one-third of the option will vest at such time as the Issuer's stock price is equal to $7.30, and one-third of the option will vest at such time as the Issuer's stock price is equal to $10.22, in each case subject to the Reporting Person providing continuous service to the Issuer on each such date.

Filing footnotes · ownership attribution and instrument terms

F1: The option vests over a period of four years, with one quarter of the common shares underlying the option vesting on March 15, 2019 and the remainder vesting in twelve equal quarterly installments thereafter, subject to the Reporting Person providing continuous service to the Issuer as of each such date.

F2: The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying the option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

F3: One-third of the option will vest at such time as the Issuer's stock price is equal to $4.38; one-third of the option will vest at such time as the Issuer's stock price is equal to $7.30, and one-third of the option will vest at such time as the Issuer's stock price is equal to $10.22, in each case subject to the Reporting Person providing continuous service to the Issuer on each such date.

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
June 17, 2026 Filed Jun 17, 2026 20:05 UTC Alector, Inc. ALEC · Entity 6051 GrantStock Option (right to buy) · Derivative 9,450 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001193125-26-274124 · ownership.xml · derivative · entry 2

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,450

Underlying: Common Stock · 9,450 shares

Expires 2036-06-16

F2 · derivative.exercise_date: The shares subject to the option vest in 12 equal monthly installments beginning on July 17, 2026, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.

Read SEC document
June 17, 2026 Filed Jun 17, 2026 20:05 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 28,700 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-274124 · ownership.xml · nonDerivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,650

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 17, 2027 or (ii) the date of the Issuer's next annual meeting of stockholders.

Read SEC document
June 11, 2025 Filed Jun 12, 2025 22:05 UTC Alector, Inc. ALEC · Entity 6051 GrantStock Option (right to buy) · Derivative 9,450 $0.00 Strike: $1.63 $0.00
Disclosure

SEC source: 0000950170-25-085614 · ownership.xml · derivative · entry 2

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,450

Underlying: Common Stock · 9,450 shares

Expires 2035-06-10

F2 · derivative.exercise_date: The shares subject to the option vest in 12 equal monthly installments beginning on July 11, 2025, provided that the shares subject to the option will vest in full on the earlier of the one-year anniversary of the date of grant or the date of the Issuer's next annual meeting of stockholders.

Read SEC document
June 11, 2025 Filed Jun 12, 2025 22:05 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 28,700 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-085614 · ownership.xml · nonDerivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 69,950

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest on the earlier of (i) June 11, 2026 or (ii) the date of the Issuer's next annual meeting of stockholders.

Read SEC document
March 19, 2024 Filed Mar 21, 2024 21:01 UTC Alector, Inc. ALEC · Entity 6051 GrantStock Option (right to buy) · Derivative 19,420 $0.00 Strike: $6.20 $0.00
Disclosure

SEC source: 0000950170-24-034849 · ownership.xml · derivative · entry 2

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,420

Underlying: Common Stock · 19,420 shares

Expires 2034-03-19

F2 · derivative.exercise_date: Shares subject to the option vest in 48 equal monthly installments beginning on April 19, 2024.

Read SEC document
March 19, 2024 Filed Mar 21, 2024 21:01 UTC Alector, Inc. ALEC · Entity 6051 GrantCommon Stock 41,250 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-034849 · ownership.xml · nonDerivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,250

F1 · shares: The reported shares are represented by restricted stock units, or RSUs, which vest in 12 equal quarterly installments beginning on September 1, 2024.

Read SEC document
August 31, 2018 Filed Sep 4, 2018 20:44 UTC Myovant Sciences Ltd. MYOV · Entity 115677 GrantStock Option (Right to Buy) · Derivative 22,500 $0.00 Strike: $24.25 $0.00
Disclosure

SEC source: 0001209191-18-049222 · doc4.xml · derivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Common Shares · 22,500 shares

Expires 2028-08-30

F1 · derivative.exercise_date: 100% of the shares underlying the option vest and become exercisable on the earlier of (a) August 31, 2019, and (b) the date that is one day prior to the Issuer's 2019 Annual General Meeting of Shareholders, subject to the Reporting Person providing continuous service to the Issuer on such date.

Read SEC document
March 15, 2018 Filed Mar 16, 2018 22:32 UTC Sio Gene Therapies Inc. AXON · Entity 130622 GrantEmployee Stock Option (Right to Buy) · Derivative 100,000 $0.00 Strike: $1.46 $0.00
Disclosure

SEC source: 0001209191-18-020365 · doc4.xml · derivative · entry 2

Altmeyer Mark · CIK 0001643074 · Pres (ASG) & Chief Comm. Ofc.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Shares · 100,000 shares

Expires 2028-03-15

F2 · derivative.exercise_date: The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying the option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

F3 · derivative.exercise_date: One-third of the option will vest at such time as the Issuer's stock price is equal to $4.38; one-third of the option will vest at such time as the Issuer's stock price is equal to $7.30, and one-third of the option will vest at such time as the Issuer's stock price is equal to $10.22, in each case subject to the Reporting Person providing continuous service to the Issuer on each such date.

Read SEC document
March 15, 2018 Filed Mar 16, 2018 22:32 UTC Sio Gene Therapies Inc. AXON · Entity 130622 GrantEmployee Stock Option (Right to Buy) · Derivative 340,000 $0.00 Strike: $1.46 $0.00
Disclosure

SEC source: 0001209191-18-020365 · doc4.xml · derivative · entry 1

Altmeyer Mark · CIK 0001643074 · Pres (ASG) & Chief Comm. Ofc.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 340,000

Underlying: Common Shares · 340,000 shares

Expires 2028-03-15

F1 · derivative.exercise_date: The option vests over a period of four years, with one quarter of the common shares underlying the option vesting on March 15, 2019 and the remainder vesting in twelve equal quarterly installments thereafter, subject to the Reporting Person providing continuous service to the Issuer as of each such date.

F2 · derivative.exercise_date: The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying the option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

Read SEC document
November 17, 2017 Filed Jun 15, 2018 21:20 UTC Myovant Sciences Ltd. MYOV · Entity 115677 PurchaseCommon Shares 3,500 $13.38 $46,830.00
Disclosure

SEC source: 0001209191-18-038121 · doc4.xml · nonDerivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,500

Read SEC document
August 18, 2017 Filed Oct 20, 2017 20:45 UTC Myovant Sciences Ltd. MYOV · Entity 115677 GrantStock Option (Right to Buy) · Derivative 22,500 $0.00 Strike: $13.14 $0.00
Disclosure

SEC source: 0001209191-17-057643 · doc4.xml · derivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Common Shares · 22,500 shares

Expires 2027-08-17

F1 · derivative.exercise_date: 100% of the shares underlying the option vest and become exercisable on the earlier of (a) August 18, 2018, and (b) the date that is one day prior to the Issuer's 2018 Annual General Meeting of Shareholders, subject to the Reporting Person providing continuous service to the Issuer on such date.

Read SEC document
May 15, 2017 Filed May 17, 2017 21:18 UTC Myovant Sciences Ltd. MYOV · Entity 115677 GrantStock Option (Right to Buy) · Derivative 11,154 $0.00 Strike: $12.68 $0.00
Disclosure

SEC source: 0001209191-17-033261 · doc4.xml · derivative · entry 1

Altmeyer Mark · CIK 0001643074 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,154

Underlying: Common Shares · 11,154 shares

Expires 2027-05-14

F1 · derivative.exercise_date: 1/3rd of the shares underlying the option vest and become exercisable on May 15, 2018; the balance of the shares vest and become exercisable in a series of eight (8) successive equal quarterly installments measured from May 15, 2018, subject to the Reporting Person providing continuous service to the Issuer on each such date.

Read SEC document
April 28, 2017 Filed May 3, 2017 00:59 UTC Sio Gene Therapies Inc. AXON · Entity 130622 GrantEmployee Stock Option (Right to Buy) · Derivative 100,000 $0.00 Strike: $24.24 $0.00
Disclosure

SEC source: 0001209191-17-029469 · doc4.xml · derivative · entry 1

Altmeyer Mark · CIK 0001643074 · Pres (ASG) & Chief Comm. Ofc.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

Underlying: Common Shares · 100,000 shares

Expires 2027-04-28

F1 · derivative.exercise_date: This option vests over a period of four years, with one quarter of the common shares underlying the option vesting on April 28, 2018 and the remainder vesting in twelve equal quarterly installments thereafter. The option allows for early exercise, subject to the Issuer's repurchase option with respect to any unvested common shares. All common shares underlying such option will become fully vested upon a change in control, as that term is defined in the Issuer's 2015 Equity Incentive Plan.

F2 · balance_after: Includes only options with the same termination date.

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.