Velarion · Company Intelligence
Compensation Brief
Fiscal year 2024 · Filings through 2025-12-19

ASP Isotopes (ASPI)

CEO Robert Ainscow was paid $1,148,500 in fiscal year 2024, ↑ up 359.4% from fiscal year 2023 (SEC filing 0001477932-25-008604 ↗): executive and director compensation, incentive-plan design, equity activity, and governance — every figure in this brief is traceable to its exact location in the company’s SEC filing — the document, the section, the page, and the table, linked directly.

$4,767,309
Paul Mann total, FY2024
Executive Chairman — highest-paid officer; CEO Robert Ainscow: $1,148,500
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CEO (Robert Ainscow) pay percentile vs peers
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CEO-to-median pay ratio
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Say-on-pay support, latest vote

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Sample answer — “What is the CEO’s total compensation?”
- Robert Ainscow (Interim Chief Executive Officer and Chief Operating Officer), FY2024 total compensation $1,148,500 (base salary $310,000) [exec_comp, SEC accession 0001477932-25-008604, filed 2025-11-25]

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ASPI's next annual pay disclosure, estimated November 25, 2026.est. Filing ↗

01

Summary Compensation Table — fiscal year 2024

Named executive officerSalaryBonusStock awardsOption awardsNon-equity incentivePension / NQDCAll otherTotal
Paul Mann$510,000$500,000$3,757,309$0$0$0$0$4,767,309
Executive Chairman
Heather Kiessling200,000200,0001,312,00000001,712,000
Chief Financial Officer
Robert Ainscow310,000180,000658,50000001,148,500
Interim Chief Executive Officer and Chief Operating Officer

A dash means the company reported no figure in that column; 0 means it reported zero. Figures are as printed in the filing, without adjustment.

Three-year trend — total compensation per named executive

Named executive officerFY2024 totalFY2023 totalFY2022 totalΔ FY2023→2024
Paul Mann$4,767,309$2,212,657—↑ +2,554,652
Heather Kiessling1,712,000———
Robert Ainscow1,148,500249,996—↑ +898,504

Prior-year totals as disclosed in the corresponding proxy; deltas are computed values with the derivation shown in the register.

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Companies that benchmark against ASPI
1 company names ASPI as a compensation peer

Each company listed discloses ASPI in its own benchmarking peer group, as disclosed in each company's most recent proxy statement within the last two proxy seasons. Two companies are therefore absent by design: one that named ASPI in an earlier year and no longer does, and one whose own most recent disclosure is older than the last two seasons.

01c

Board of directors

One page per director: the seat, the committees and the fee table, read for one person at a time.

DirectorRoleFY2024 total
Duncan Moore, Ph.DIndependent Director$374,032
Josh DonfeldIndependent Director—
Michael Gorley, Ph.DIndependent Director$374,032
Robert RyanIndependent Director$374,032
Todd Wider, M.DIndependent Director$374,032
02

Equity transactions since the proxy statement was filed

No insider equity transactions reported since the proxy statement.

04

Outstanding equity awards at fiscal year-end 2024

ExecutiveAwardShares unvestedExercise priceMarket value unvested
Paul MannRSU500,000—$2,265,000
Heather KiesslingRSU400,000—1,812,000
Robert AinscowRSU300,000—1,359,000
Paul MannOption146,2122—
Paul MannRSU244,617—1,108,115
Robert AinscowRSU150,000—0
Robert AinscowOption19,7392—
05

Incentive-plan design — the Compensation Discussion & Analysis

The compensation committee is responsible for executive compensation programs, with the CEO making recommendations based on company results, individual contributions, and performance toward individual goal achievement. The committee reviews these recommendations and makes decisions on total compensation and individual components for each executive officer.

CEO STI target (% of salary)—
CEO LTI target (% of salary)—
Independent consultant—
Clawback policytrue
Anti-hedgingtrue
Anti-pledgingtrue
06

Say-on-pay — recent advisory votes

Meeting yearMeeting dateForAgainstAbstainSupportOutcome
20252025-12-18—————
20242024-11-20—————

Rows are labeled by annual-meeting year, with the meeting date beside each; the vote held in a given year acts on the prior fiscal year's compensation.

Say-on-pay — history, company's computation

Meeting yearMeeting dateApproval — company's computation
20252025-12-18—a
20242024-11-20—b

a. Voting standard not stated in the filing.

b. Voting standard not stated in the filing.

Approval percentages are the company's own reported computations under its own stated standard, not recomputed by Velarion. Where a company does not state a standard, none is assumed.

08

Director compensation — fiscal year 2024

DirectorCash feesStock awardsOption awardsNon-equity incentiveAll otherTotal
Robert RyanIndependent · Nominating and Corporate Governance (Chair) · Audit$70,000$304,032$0——$374,032
Duncan Moore, Ph.DIndependent · Nominating and Corporate Governance · Special Projects · Audit · Compensation (Chair)70,000304,032———374,032
Michael Gorley, Ph.DIndependent · Nominating and Corporate Governance70,000304,0320——374,032
Todd Wider, M.DIndependent · Compensation · Audit70,000304,0320——374,032
Josh DonfeldIndependent00———0
Paul MannEmployee director · Board Chair · Executive (Chair)—————0
Sipho N. MasekoIndependent · Newly elected——————
Ralph L. Hunter JrIndependent · Newly elected——————
09

Board fee structure and ownership guideline

Annual cash retainer$100,000
Annual equity retainer$250,000
Per board meeting fee—
Committee chair fees (audit / comp / nom-gov)—
Stock ownership guideline—
09b

Total cost of the board

ComponentFY2024
Cash retainers and fees$280,000
Equity awards (grant-date value)$1,216,128
All other compensation$0
Total cost of the board$1,496,128

Computed as the sum of the director compensation table rows above; inputs and formula shown in the register.

10b

Chief executive pay against the peer group

Most recent fiscal-year chief executive compensation at each disclosed peer, taken from that company's own proxy statement.

RankCompanyFYChief executiveSalaryStock awardsOption awardsNon-equity incentiveTotal
1ASP Isotopes2024Robert Ainscow$310,000$658,500$0$0$1,148,500

Each peer's compensation is from its most recently filed proxy; fiscal years differ by company. Each peer's figures come from its own filings; the subject company is highlighted. Peers whose chief executive compensation is outside our coverage universe are stated as such, never left blank.

10d

Frequently asked questions

Who was the highest-paid executive at ASP Isotopes in fiscal 2024?
As disclosed, Paul Mann (Executive Chairman) was the highest-paid executive at ASP Isotopes in fiscal 2024, with total compensation of $4,767,309.
How much does ASP Isotopes spend in total on board compensation for fiscal 2024?
As disclosed, ASP Isotopes reported total board compensation of $1,496,128 for fiscal 2024.

Answers are drawn only from the figures disclosed in this brief and cited to their location in the source filing. Where a figure required for an answer is not disclosed, that is stated rather than estimated.

11

Source register

Each figure's location is given both for the eye (section · page · table · row · column) and for a script (table/row/column index and exact character span in the filed document). Any figure can be independently confirmed against the source.

#SupportsDocumentFiledAccessionLocation in document
1Section 01, Paul MannDEF 14A2025-11-250001477932-25-008604Section “Executive Compensation”. As printed: 4,767,309. Filing ↗machine: r1 · c29 · span 251799–251808
2Section 01, Heather KiesslingDEF 14A2025-11-250001477932-25-008604Section “Executive Compensation”. As printed: 1,712,000. Filing ↗machine: r3 · c29 · span 259112–259121
3Section 01, Robert AinscowDEF 14A2025-11-250001477932-25-008604Section “Executive Compensation”. As printed: 1,148,500. Filing ↗machine: r5 · c29 · span 266437–266446
4Section 08, Robert RyanDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 374,032. Filing ↗machine: span 171704–171711
5Section 08, Duncan Moore, Ph.DDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 374,032. Filing ↗machine: span 169627–169634
6Section 08, Michael Gorley, Ph.DDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 374,032. Filing ↗machine: span 167585–167592
7Section 08, Todd Wider, M.DDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 374,032. Filing ↗machine: span 173743–173750
8Section 08, Josh DonfeldDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 0. Filing ↗
9Section 08, Paul MannDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: 0. Filing ↗
10Section 08, Sipho N. MasekoDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: —. Filing ↗
11Section 08, Ralph L. Hunter JrDEF 14A2025-11-250001477932-25-008604Section “Director Compensation”. As printed: —. Filing ↗
12Section 06, 2025 voteForm 8-K2025-12-190001477932-25-009061Item 5.07 · say-on-pay result. As reported: — (votes for as printed: 68,642,639). Filing ↗
13Section 06, 2024 voteForm 8-K2024-11-200000950170-24-129215Item 5.07 · say-on-pay result. As reported: — (votes for as printed: 29,381,555). Filing ↗
14Section 01 trend, Δ column (computed)Computed——Δ = current-FY total − prior-FY total per named officer.machine: formula: Δ = FY(n) − FY(n−1)
15Section 09b board cost (computed)Computed——Cash 280,000 + equity 1,216,128 + all other 0 = 1,496,128, summed across the director compensation table rows.machine: formula: Σ = 1,496,128
16ASP Isotopes (subject), Section 10b CEO totalDEF 14A2025-11-250001477932-25-008604CEO total compensation as printed in ASP Isotopes's own proxy. As printed: 1,148,500. Filing ↗machine: r5 · c29 · span 266437–266446

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