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Nathaniel Sean

Disclosed activity across 2 companies

Tapewire entity
37739
SEC CIK
0001870221

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
CS Disco, Inc.LAW · Entity 6054Chief Operating OfficerJuly 23, 2021July 27, 2021
Upland Software, Inc.UPLD · Entity 7891CEO and PresidentSeptember 16, 2026September 21, 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.

CS Disco, Inc.

Report date July 23, 2021 · Filed July 27, 2021

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect912 Reported balance After 2021-07-23 transaction · row 1
1 source row

Row 1 · 2021-07-23 · Purchase · Acquired 912 · Balance 912

Upland Software, Inc.

Report date September 16, 2026 · Filed September 21, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect48,574 Reported balance After 2026-09-16 transaction · row 1
1 source row

Row 1 · 2026-09-16 · Tax withholding · Disposed 1,640 · Balance 48,574

F1: Shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. This is not an open market sale of securities.

Filing footnotes · ownership attribution and instrument terms

F1: Shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. This is not an open market sale of securities.

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
September 16, 2026 Filed Sep 21, 2026 21:38 UTC Upland Software, Inc. UPLD · Entity 7891 Tax withholdingCommon Stock 1,640 $3.95 $6,469.80
Disclosure

SEC source: 0001870221-26-000013 · wk-form4_1790026719.xml · nonDerivative · entry 1

Nathaniel Sean · CIK 0001870221 · CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,574

F1 · kind: Shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. This is not an open market sale of securities.

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June 16, 2026 Filed Jun 16, 2026 22:33 UTC Upland Software, Inc. UPLD · Entity 7891 Tax withholdingCommon Stock 18,605 $0.61 $11,282.07
Disclosure

SEC source: 0001870221-26-000009 · wk-form4_1781649213.xml · nonDerivative · entry 1

Nathaniel Sean · CIK 0001870221 · CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 502,146

F1 · kind: Shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units. This is not an open market sale of securities.

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June 04, 2026 Filed Jun 8, 2026 20:51 UTC Upland Software, Inc. UPLD · Entity 7891 GrantPerformance-based Restricted Stock Unit June 2026 · Derivative 133,333 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001870221-26-000007 · wk-form4_1780951876.xml · derivative · entry 2

Nathaniel Sean · CIK 0001870221 · CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,333

Underlying: Common Stock · 133,333 shares

Expires 2029-05-01

F2 · derivative.exercise_date: Performance Stock Units ("PSUs") may vest at target amount of 133,333 and up to a maximum number of shares of 500,000 upon the achievement of the stock price hurdles for thirty (30) consecutive trading days immediately preceding such date during the three-year performance period beginning on May 1, 2026 and ending on May 1, 2029, the Performance Period. PSUs may vest as follows a) 133,333 shares at $2.00, b) 24,445 shares at $2.20, c) 24,444 shares at $2.40, d) 24,445 shares at $2.60, e) 24,444 shares at $2.80, f) 24,445 shares at $3.00, g) 24,444 shares at $3.20, h) 24,445 shares at $3.40, i) 24,444 shares at $3.60, j) 24,445 shares at $3.80, k) 24,444 shares at $4.00, l) 24,445 shares at $4.20, m) 24,444 shares at $4.40, n) 24,445 shares at $4.60, o) 24,444 shares at $4.80, and p) 24,444 shares at $5.00.

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June 04, 2026 Filed Jun 8, 2026 20:51 UTC Upland Software, Inc. UPLD · Entity 7891 GrantCommon Stock 500,000 $0.00 $0.00
Disclosure

SEC source: 0001870221-26-000007 · wk-form4_1780951876.xml · nonDerivative · entry 1

Nathaniel Sean · CIK 0001870221 · CEO and President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 520,751

F1 · shares: The restricted stock units vest in twelve equal quarterly installments starting on the Vesting Commencement Date of June 16, 2026, provided that the participant continues to be a service provider through each such vesting date. Notwithstanding the foregoing, in the event of the participant's termination by the Company for any reason other than cause or if participant leaves for Good Reason after a Change in Control (as defined in the Plan), then 100% of the restricted stock units shall become fully vested.

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July 23, 2021 Filed Jul 27, 2021 23:30 UTC CS Disco, Inc. LAW · Entity 6054 PurchaseCommon Stock 912 $32.00 $29,184.00
Disclosure

SEC source: 0001209191-21-048360 · doc4.xml · nonDerivative · entry 1

Nathaniel Sean · CIK 0001870221 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 912

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.