Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| ASTROTECH CorpASTC · Entity 7805 | Chief Financial Officer | January 14, 2025 | January 25, 2025 |
| SideChannel, Inc.SDCH · Entity 8160 | Chief Financial Officer | March 02, 2026 | March 18, 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.
ASTROTECH Corp
Report date January 14, 2025 · Filed January 25, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 0 |
Reported balance
Holding disclosure · report date 2025-01-14 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 0 |
SideChannel, Inc.
Report date March 02, 2026 · Filed March 18, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Restricted Stock UnitSEC Table I · non-derivative | Direct | 34,130 |
Reported balance
After 2026-03-02 transaction · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · 2026-03-02 · Tax withholding · Disposed 25,745 · Balance 34,130 F2: On March 2, 2026, 25,745 RSUs vested, 10,602 shares of common stock otherwise issuable pursuant to the vesting were withheld for the payment of taxes, resulting in the issuance of 15,143 shares of common stock to the Reporting Person. F3: The closing price of the issuer's common stock on the transaction date. |
| Restricted Stock UnitSEC Table I · non-derivative | Direct | 69,704 |
Reported balance
After 2026-03-16 transaction · row 5
Holding and transaction disclosures are not merged.
1 source rowRow 5 · 2026-03-16 · Grant · Acquired 35,574 · Balance 69,704 F5: Represents a 35,574 RSU award, one third of which shall vest on the first business day of each subsequent March, for the following three years. F3: The closing price of the issuer's common stock on the transaction date. F4: Represents the total amount of securities beneficially owned by the Reporting Person following the reported transactions above. |
| Restricted Stock UnitSEC Table I · non-derivative | Direct | 59,875 |
Reported balance
Holding disclosure · report date 2026-03-02 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 59,875 F1: Represents the total amount of securities beneficially owned by the Reporting Person following the 1 for 52 reverse stock split, effective January 22, 2026. |
| Common StockSEC Table I · non-derivative | Direct | 31,229 |
Reported balance
Holding disclosure · report date 2026-03-02 · row 1
Holding and transaction disclosures are not merged.
1 source rowRow 1 · Balance 31,229 F1: Represents the total amount of securities beneficially owned by the Reporting Person following the 1 for 52 reverse stock split, effective January 22, 2026. |
| Common StockSEC Table I · non-derivative | Direct | 46,372 |
Reported balance
Holding disclosure · report date 2026-03-02 · row 4
Holding and transaction disclosures are not merged.
1 source rowRow 4 · Balance 46,372 F4: Represents the total amount of securities beneficially owned by the Reporting Person following the reported transactions above. |
Filing footnotes · ownership attribution and instrument terms
F1: Represents the total amount of securities beneficially owned by the Reporting Person following the 1 for 52 reverse stock split, effective January 22, 2026.
F2: On March 2, 2026, 25,745 RSUs vested, 10,602 shares of common stock otherwise issuable pursuant to the vesting were withheld for the payment of taxes, resulting in the issuance of 15,143 shares of common stock to the Reporting Person.
F3: The closing price of the issuer's common stock on the transaction date.
F4: Represents the total amount of securities beneficially owned by the Reporting Person following the reported transactions above.
F5: Represents a 35,574 RSU award, one third of which shall vest on the first business day of each subsequent March, for the following three years.
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 |
|---|---|---|---|---|---|---|
| March 16, 2026 Filed Mar 18, 2026 17:26 UTC | SideChannel, Inc. SDCH · Entity 8160 | GrantRestricted Stock Unit | 35,574 | $2.01 | $71,503.74 |
DisclosureSEC source: 0001493152-26-011100 · ownership.xml · nonDerivative · entry 5 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 69,704 F5 · shares: Represents a 35,574 RSU award, one third of which shall vest on the first business day of each subsequent March, for the following three years. F3 · price: The closing price of the issuer's common stock on the transaction date. F4 · balance_after: Represents the total amount of securities beneficially owned by the Reporting Person following the reported transactions above. Read SEC document |
| March 02, 2026 Filed Mar 18, 2026 17:26 UTC | SideChannel, Inc. SDCH · Entity 8160 | Tax withholdingRestricted Stock Unit | 25,745 | $2.20 | $56,639.00 |
DisclosureSEC source: 0001493152-26-011100 · ownership.xml · nonDerivative · entry 3 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 34,130 F2 · shares: On March 2, 2026, 25,745 RSUs vested, 10,602 shares of common stock otherwise issuable pursuant to the vesting were withheld for the payment of taxes, resulting in the issuance of 15,143 shares of common stock to the Reporting Person. F3 · price: The closing price of the issuer's common stock on the transaction date. Read SEC document |
| March 03, 2025 Filed Mar 5, 2025 22:19 UTC | SideChannel, Inc. SDCH · Entity 8160 | Tax withholdingRestricted Stock Unit | 408,913 | $0.04 | $17,174.35 |
DisclosureSEC source: 0001493152-25-009256 · ownership.xml · nonDerivative · entry 2 Polk Ryan · CIK 0001492514 · Director · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 3,113,426 F2 · balance_after: On March 3, 2025, 995,405 RSUs vested. Following the vesting of such RSUs, 408,913 shares of Common Stock otherwise issuable pursuant to the vesting were withheld for the payment of taxes, resulting in the issuance of 586,492 shares of Common Stock to the Reporting Person. Read SEC document |
| March 03, 2025 Filed Mar 5, 2025 22:19 UTC | SideChannel, Inc. SDCH · Entity 8160 | GrantRestricted Stock Unit | 1,807,803 | $0.18 | $325,404.54 |
DisclosureSEC source: 0001493152-25-009256 · ownership.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Director · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 4,108,831 F1 · shares: Represents the grant of shares of common stock approved by the independent directors of the issuer's board of directors and issued in accordance with Rule 16b-3 promulgated under the Securities Exchange Act of 1934, as amended. The shares vest according to the following schedule: 602,601 shares vesting on March 2, 2026, 602,601 shares vesting on March 1, 2027, and 602,601 shares vesting on March 1, 2028. Read SEC document |
| May 24, 2024 Filed Jun 3, 2024 20:00 UTC | SideChannel, Inc. SDCH · Entity 8160 | GrantCommon Stock | 286,902 | $0.06 | $17,214.12 |
DisclosureSEC source: 0001493152-24-022366 · ownership.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,037,374 Read SEC document |
| March 01, 2024 Filed Mar 18, 2024 20:38 UTC | SideChannel, Inc. SDCH · Entity 8160 | Tax withholdingRestricted Stock Unit | 212,490 | $0.05 | $11,474.46 |
DisclosureSEC source: 0001127602-24-010435 · form4.xml · nonDerivative · entry 2 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,301,028 F2 · shares: On March 1, 2024, 518,519 RSUs vested. Following the vesting of such RSUs, 212,490 shares of Common Stock otherwise issuable pursuant to the vesting were withheld for the payment of taxes, resulting in the issuance of 306,029 shares of Common Stock to the reporting person. Read SEC document |
| March 01, 2024 Filed Mar 18, 2024 20:38 UTC | SideChannel, Inc. SDCH · Entity 8160 | GrantRestricted Stock Unit | 1,708,434 | $0.05 | $92,255.44 |
DisclosureSEC source: 0001127602-24-010435 · form4.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 2,819,547 F1 · shares: 3 Year Vesting Read SEC document |
| June 26, 2023 Filed Jun 26, 2023 18:54 UTC | SideChannel, Inc. SDCH · Entity 8160 | GrantRestricted Stock Unit | 500,000 | $0.30 | $150,000.00 |
DisclosureSEC source: 0001127602-23-019390 · form4.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 1,555,556 F1 · shares: Vest in equal amounts over 3 years beginning June 01, 2024. Read SEC document |
| June 30, 2022 Filed Jul 5, 2022 21:00 UTC | SideChannel, Inc. CLOK · Entity 8160 | GrantRestricted Stock Unit | 500,000 | $0.18 | $90,000.00 |
DisclosureSEC source: 0001493152-22-018560 · ownership.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,055,556 F1 · shares: Vests over 3 years. Read SEC document |
| June 20, 2022 Filed Jun 21, 2022 17:12 UTC | SideChannel, Inc. CLOK · Entity 8160 | GrantRestricted Stock Unit | 277,778 | $0.18 | $50,000.04 |
DisclosureSEC source: 0001493152-22-017325 · ownership.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief Financial Officer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 555,556 F1 · shares: Vest in equal amounts over 3 years beginning June 01, 2022. Read SEC document |
| October 25, 2021 Filed Dec 15, 2021 16:49 UTC | SideChannel, Inc. CLOK · Entity 8160 | GrantRestricted Stock Unit | 277,778 | $0.18 | $50,000.04 |
DisclosureSEC source: 0001493152-21-031517 · ownership.xml · nonDerivative · entry 1 Polk Ryan · CIK 0001492514 · Chief FinancialOfficer 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 277,778 F1 · shares: Vests in equal amounts over 3 years beginning June 01, 2021. 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.