Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| Envoy Medical, Inc.ANZU · Entity 7161 | Director | March 01, 2021 | March 02, 2021 |
| ZIFF DAVIS, INC.ZD · Entity 4548 | Director | May 06, 2026 | May 08, 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.
Envoy Medical, Inc.
Report date March 01, 2021 · Filed March 02, 2021
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class B Common Stock, par value $0.0001 per shareSEC Table II · derivative / convertible security | Direct | Not disclosed |
Reported balance
Holding disclosure · report date 2021-03-01 · row 1
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 1 · Balance Not disclosed F1: The reporting person owns 25,000 shares of Class B common stock, par value $0.0001 per share (the "Class B Founder Shares") of Anzu Special Acquisition Corp I (the "Issuer"). Such Class B Founder Shares have no expiration date and (i) are convertible into shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), of the Issuer at any time at the option of the holder on a one-for-one basis and (ii) will automatically convert into shares of Class A Common Stock at the time of the Issuer's initial business combination on a one-for-one basis, in each case, subject to adjustment as described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-252861). |
Filing footnotes · ownership attribution and instrument terms
F1: The reporting person owns 25,000 shares of Class B common stock, par value $0.0001 per share (the "Class B Founder Shares") of Anzu Special Acquisition Corp I (the "Issuer"). Such Class B Founder Shares have no expiration date and (i) are convertible into shares of Class A common stock, par value $0.0001 per share ("Class A Common Stock"), of the Issuer at any time at the option of the holder on a one-for-one basis and (ii) will automatically convert into shares of Class A Common Stock at the time of the Issuer's initial business combination on a one-for-one basis, in each case, subject to adjustment as described under the heading "Description of Securities-Founder Shares" in the Issuer's registration statement on Form S-1 (File No. 333-252861).
ZIFF DAVIS, INC.
Report date May 06, 2026 · Filed May 08, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Stock $0.01 Par ValueSEC Table I · non-derivative | Direct | 20,746 |
Reported balance
After 2026-05-07 transaction · row 1
1 source rowRow 1 · 2026-05-07 · Exercise / conversion · Acquired 7,903 · Balance 20,746 |
| Restricted Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 0 |
Reported balance
After 2025-05-07 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2025-05-07 · Exercise / conversion · Disposed 7,903 · Balance 0 F1: There are no expiration dates on RSUs. |
| Restricted Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00 | Direct | 5,723 |
Reported balance
After 2026-05-06 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2026-05-06 · Grant · Acquired 5,723 · Balance 5,723 F2: Restricted Stock Unit awarded under the Issuer's 2024 Equity Incentive Plan. F1: There are no expiration dates on RSUs. |
Filing footnotes · ownership attribution and instrument terms
F1: There are no expiration dates on RSUs.
F2: Restricted Stock Unit awarded under the Issuer's 2024 Equity Incentive Plan.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
Altair Engineering Inc.
Report date March 26, 2025 · Filed March 26, 2025
Section 16 reporting ended · disclosed 2025-03-26. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Class A Common StockSEC Table I · non-derivative | Direct | 0 |
Reported balance
After 2025-03-26 transaction · row 1
1 source rowRow 1 · 2025-03-26 · Disposition to issuer · Disposed 18,092 · Balance 0 F1: On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024. F2: Includes 2,347 unvested Class A Common Stock restricted stock units ("RSUs"). F3: Upon the consummation of the merger, each issued and outstanding share of the Company's Class A Common Stock was canceled and converted into the right receive $113.00 in cash without interest. Each RSU that was granted under the Company's 2017 Equity Incentive Plan (the "2017 Plan") that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive $113.00 in cash without interest. |
| Class A Common Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $4.52 · Expires 2026-11-23 | Direct | 0 |
Reported balance
After 2025-03-26 transaction · row 2
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 2 · 2025-03-26 · Disposition to issuer · Disposed 12,020 · Balance 0 F1: On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024. F4: Each option that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive the cash value of the option. This option was canceled upon consummation of the merger in exchange for an aggregate cash payment of $1,303,929.60, representing the difference between the exercise price of the option and $113.00. |
| Class A Common Stock OptionSEC Table II · derivative / convertible security · Conversion / exercise price $5.18 · Expires 2027-06-09 | Direct | 0 |
Reported balance
After 2025-03-26 transaction · row 3
Instrument identity requires review; Table II rows are not merged.
1 source rowRow 3 · 2025-03-26 · Disposition to issuer · Disposed 4,000 · Balance 0 F1: On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024. F5: Each option that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive the cash value of the option. This option was canceled upon consummation of the merger in exchange for an aggregate cash payment of $431,280.00, representing the difference between the exercise price of the option and $113.00. |
Filing footnotes · ownership attribution and instrument terms
F1: On March 26, 2025, the Company was acquired by Siemens Industry Software Inc. ("Siemens") pursuant to the merger agreement entered into among the Company, Siemens, and Astra Merger Sub Inc., dated as of October 30, 2024.
F2: Includes 2,347 unvested Class A Common Stock restricted stock units ("RSUs").
F3: Upon the consummation of the merger, each issued and outstanding share of the Company's Class A Common Stock was canceled and converted into the right receive $113.00 in cash without interest. Each RSU that was granted under the Company's 2017 Equity Incentive Plan (the "2017 Plan") that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive $113.00 in cash without interest.
F4: Each option that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive the cash value of the option. This option was canceled upon consummation of the merger in exchange for an aggregate cash payment of $1,303,929.60, representing the difference between the exercise price of the option and $113.00.
F5: Each option that was outstanding immediately prior to the consummation of the merger was vested, canceled and converted into the right to receive the cash value of the option. This option was canceled upon consummation of the merger in exchange for an aggregate cash payment of $431,280.00, representing the difference between the exercise price of the option and $113.00.
Transaction history
JSON APIPurchases/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 date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| May 10, 2023 Filed May 11, 2023 18:06 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | Exercise / conversionRestricted Stock Units · Derivative | 2,513 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-006807 · marketforms-61482.xml · derivative · entry 2 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,013 Underlying: Common Stock · 2,513 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.expiration_date: There are no expiration dates on RSUs. Read SEC document |
| May 10, 2023 Filed May 11, 2023 18:06 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | Exercise / conversionCommon Stock $0.01 Par Value | 2,513 | $65.49 | $164,576.37 |
DisclosureSEC source: 0001214659-23-006807 · marketforms-61482.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 7,140 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 09, 2023 Filed May 10, 2023 19:42 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 2,974 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-23-015151 · form4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,895 F1 · shares: On May 9, 2023, the Reporting Person was granted 2,974 Class A Common Stock restricted stock units, which will vest on May 9, 2024. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Includes 6,908 Class A Common Stock restricted stock units that are unvested. Read SEC document |
| May 05, 2023 Filed May 8, 2023 20:48 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | GrantRestricted Stock Units · Derivative | 3,013 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001214659-23-006651 · marketforms-61423.xml · derivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 5,526 Underlying: Common Stock $0.01 Par Value · 3,013 shares Expires not disclosed F1 · kind: Restricted Stock Unit awarded under the Issuer's 2015 Stock Plan. F2 · derivative.expiration_date: There are no expiration dates on RSUs. Read SEC document |
| June 19, 2022 Filed Jun 21, 2022 20:05 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | Exercise / conversionRestricted Stock Units · Derivative | 1,521 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001214659-22-008203 · marketforms-56496.xml · derivative · entry 2 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 1,521 shares Expires not disclosed Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · derivative.expiration_date: Ziff Davis, Inc. engaged in a spin-off of one of its divisions on October 7, 2021. As a result, the number of shares released for the reporting person has been adjusted to reflect the spin. Read SEC document |
| June 19, 2022 Filed Jun 21, 2022 20:05 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | Exercise / conversionCommon Stock $0.01 par value | 1,654 | $72.14 | $119,319.56 |
DisclosureSEC source: 0001214659-22-008203 · marketforms-56496.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 4,627 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F1 · balance_after: Ziff Davis, Inc. engaged in a spin-off of one of its divisions on October 7, 2021. As a result, the number of shares released for the reporting person has been adjusted to reflect the spin. Read SEC document |
| May 12, 2022 Filed May 13, 2022 13:21 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 3,934 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-22-014341 · form4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,921 F1 · shares: On May 12, 2022, the Reporting Person was granted 3,934 Class A Common Stock restricted stock units, which will vest on May 12, 2023. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Consists of 7,671 Class A Common Stock restricted stock units that are unvested. Read SEC document |
| May 10, 2022 Filed May 12, 2022 20:58 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | GrantRestricted Stock Units · Derivative | 2,513 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001214659-22-006684 · marketforms-56167.xml · derivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 2,513 Underlying: Common Stock $0.01 Par Value · 2,513 shares Expires not disclosed F1 · kind: Restricted Stock Unit awarded under the Issuer's 2015 Stock Plan. F2 · derivative.expiration_date: There are no expiration dates on RSUs. Read SEC document |
| December 03, 2021 Filed Dec 7, 2021 21:31 UTC | ZIFF DAVIS, INC. ZD · Entity 4548 | PurchaseCommon Stock $0.01 par value | 460 | $108.20 | $49,772.14 |
DisclosureSEC source: 0001214659-21-012785 · marketforms-54503.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 460 F1 · shares: Reporting person purchased 460 shares of company stock in the open market. Read SEC document |
| June 18, 2021 Filed Jun 22, 2021 20:15 UTC | ZIFF DAVIS, INC. JCOM · Entity 4548 | GrantRestricted Stock Units · Derivative | 1,521 | $0.00 Strike: $0.00 | $0.00 |
DisclosureSEC source: 0001214659-21-006834 · marketforms-53178.xml · derivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,521 Underlying: Common Stock $0.01 Par Value · 1,521 shares Expires not disclosed F1 · kind: Restricted Stock Unit awarded under the Issuer's 2015 Stock Plan. F2 · derivative.expiration_date: There are no expiration dates on RSUs. Read SEC document |
| June 02, 2021 Filed Jun 4, 2021 07:58 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 2,987 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-21-019146 · form4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 11,987 F1 · shares: On June 2, 2021, the Reporting Person was granted 2,987 Class A Common Stock restricted stock units, which will vest on June 2, 2022. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Consists of 4,487 Class A Common Stock restricted stock units that are unvested. Read SEC document |
| May 28, 2020 Filed Jun 1, 2020 18:31 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 3,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-20-014770 · doc4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,000 F1 · shares: On May 28, 2020, the Reporting Person was granted 3,000 Class A Common Stock restricted stock units, which will vest on May 28, 2021. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Consists of 5,250 Class A Common Stock restricted stock units that are unvested. Read SEC document |
| May 14, 2019 Filed May 16, 2019 13:04 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 3,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-19-013679 · doc4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 6,000 F1 · shares: On May 14, 2019, the Reporting Person was granted 3,000 Class A Common Stock restricted stock units, which will vest on May 14, 2020. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Consists of 6,000 Class A Common Stock restricted stock units that are unvested. Read SEC document |
| June 14, 2018 Filed Jun 18, 2018 16:05 UTC | Altair Engineering Inc. ALTR · Entity 81502 | GrantClass A Common Stock | 3,000 | $0.00 | $0.00 |
DisclosureSEC source: 0000899243-18-016973 · doc4.xml · nonDerivative · entry 1 Harris Teresa A · CIK 0001720317 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 3,000 F1 · shares: On June 14, 2018, the Reporting Person was granted 3,000 Class A Common Stock restricted stock units, which vest in 4 equal annual installments commencing June 14, 2019. Each restricted stock unit represents a contingent right to receive one share of Class A Common Stock. F2 · balance_after: Consists of 3,000 Class A Common Stock restricted stock units that are unvested. 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.