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Hong Gan

Chief Science Officer at SES AI
Executive

About Hong Gan

Dr. Hong Gan, 65, is SES’s Chief Science Officer (CSO) since 2020; previously Director of R&D (2018–2020). He holds a PhD in Chemistry from University of Chicago (1990) and a BS in Chemistry from Peking University (1982) . Company performance highlights during his tenure include initial commercial revenues beginning October 2024, reaching $7.1M in Q3 2025 and $16.4M YTD with 51.1% Q3 gross margin , and company-level TSR measures of $22 in 2024, $18 in 2023, and $44 in 2022 (based on $100 initial investment, cumulative) . The company reported net losses, e.g., $(100,185)k in 2024 and $(53,400)k in 2023 , and ended Q3 2025 with weighted average shares of 331.3M and basic/diluted loss per share of $(0.06) for the quarter .

Past Roles

OrganizationRoleYearsStrategic Impact
SESDirector of Research & Development2018–2020Led materials and cell development prior to commercialization pivot .
SESChief Science Officer2020–PresentOversees science strategy, OEM partnership technical alignment, UAM specifications, and IP development targets under AIP .

External Roles

OrganizationRoleYearsStrategic Impact
Brookhaven National LaboratoryGroup Leader, Energy Storage Group2013–2018Led advanced energy storage research programs .
Enevate CorporationSenior Director of R&D2011–2013Drove Li-ion innovation at growth-stage battery firm .
Greatbatch MedicalVarious roles culminating in Director, Battery Research and Director, R&D Power Sources1993–2011Directed battery R&D for medical devices, building deep electrochemistry expertise .

Fixed Compensation

Component20232024Notes
Base Salary ($)335,000 335,000 Annual base salary per employment terms .
Target Bonus (% of Salary)50% 50% Under Annual Incentive Plan (AIP).
Actual Bonus Paid ($)150,865 134,000 80% payout of AIP targets for FY2024; FY2023 paid per committee determination .
All Other Compensation ($)11,747 9,922 401(k) matching contributions; no notable perquisites disclosed for Gan .
Total Compensation ($)1,089,662 1,203,497 Includes stock awards; company uses “smaller reporting company” scaled disclosure .

Performance Compensation

Annual Incentive Plan (AIP) – FY2024

MetricWeightingTargetActualPayoutVesting/Payment
Material development – cycle life improvement100% of AIP pool collectively across executive metrics (individual weights not disclosed) Committee-set operational targets Committee determined 80% achievement 80% of target bonus (=$134,000 for Gan) Cash or equity at Compensation Committee discretion
OEM partnership milestones on track
UAM specifications met and contracts entered
Effective cash management

Notes:

  • Gan’s AIP targets emphasized material/cycle life, OEM milestones, and UAM specification/contract execution; payouts were uniform at 80% for CEO, CFO, and CSO .

Equity Incentive Awards

Grant YearInstrumentGrant DateQuantityFair Value ($)Key Terms
2024RSUs2/9/2024423,728 576,270 (RSU component of “Stock Awards”) RSUs vest in 3 equal annual installments, 1st anniversary onward .
2024PSUs2/9/2024423,728 (target) 148,305 (PSU component of “Stock Awards”) Vest after 3-year performance period based on stock price thresholds: $12.5 (25%), $15 (50%), $17.5 (75%), $20 (100%); with 5-year catch-up provision .
2023RSUs4/14/2023Part of mixed grant592,050 (aggregate grant date fair value including PSUs) RSUs: 3-year ratable vesting .
2023PSUs4/14/2023Part of mixed grantIncluded in above Share-price thresholds identical to 2024 grant .
2022PSUs4/18/2022Part of mixed grantMulti-thresholds from $12.5 to $35 determining 10–100% vest; 3-year performance + 5-year catch-up .

Vesting Mechanics:

  • RSUs: time-based vesting over 3 years in equal annual installments .
  • PSUs: vest based on average closing price over defined windows; if not met at 3 years, eligible for catch-up vesting by 5th anniversary subject to service .
  • As of 12/31/2024, zero PSUs were considered outstanding for beneficial ownership since minimum price milestones not met .

Option Awards

Grant DatePlanStrike Price ($)ExpirationExercisable (#)Unexercisable (#)Vesting Schedule
3/14/2019Old SES 2018/2021 plan0.15 3/14/2029 243,277 (as of 12/31/2024) 25% at 1-year anniversary; remainder monthly over 36 months .
2/10/2021Old SES 2021 plan0.16 2/10/2031 1,137,115 49,440 Same as above .

Additional Option Notes:

  • Gan exercised 175,000 options in fiscal 2023 (value realized $347,250) .
  • 10b5-1 plan adopted Aug 14, 2025 to potentially exercise/sell up to 500,000 vested options through Aug 15, 2026 (expirations Mar 13, 2029–Feb 9, 2031) .

Equity Ownership & Alignment

MeasureDetail
Total Beneficial Ownership1,966,246 Class A shares; <1% of Class A outstanding as of Aug 25, 2025 .
Vested vs Unvested (selected items)Unvested RSUs by grants: 186,950 ($409,421), 93,111 ($203,913), 139,470 ($305,439), 423,728 ($927,964) – market value at $2.19 on 12/31/2024 .
Options Status2019 grant: 243,277 exercisable at $0.15 exp. 2029 ; 2021 grant: 1,137,115 exercisable, 49,440 unexercisable at $0.16 exp. 2031 .
PSUs StatusAs of 12/31/2024, minimum price milestones not met; zero PSUs counted in beneficial ownership .
Pledging/HedgingProhibited per Insider Trading Policy; limited exceptions may be granted, margin accounts/pledging prohibited .
Stock Ownership GuidelinesExecutives must hold stock equal to 3× salary (CEO 5×); 5-year compliance period; retain 100% of net shares until met; as of Aug 25, 2025, executives met or are within grace period .
Rule 10b5-1 PlanAdopted Aug 14, 2025: exercise/sale up to 500,000 vested options through Aug 15, 2026 .

Employment Terms

TermSES Disclosure
Employment Start DateEmployment agreement dated July 1, 2018; at-will employment .
SeveranceNo severance if terminated without cause or resignation for good reason under Gan’s offer letter .
Change-of-Control (CoC)For 2021 options: 50% acceleration upon termination without cause/good reason; full vesting on merger/acquisition . Old 2021 Plan allows assumption/substitution, acceleration, deeming performance satisfied, or cash-out above FMV less exercise price .
RSU Death/DisabilityPro-rata vesting upon termination due to death/disability .
Earn-Out SharesCoC at ≥$18 per share triggers immediate vesting of Escrowed Earn-Out and Earn-Out Restricted Shares .
ClawbackRobust NYSE-aligned clawback; covers cash/equity (vested/unvested) on restatements for 3 prior completed fiscal years .
Hedging/PledgingHedging/monetization transactions prohibited; margin/pledging prohibited .
Deferred Comp/PensionNEOs did not participate in pension/retirement plans; no nonqualified deferred compensation disclosed .

Performance & Track Record

  • Operational targets under AIP emphasize materials/cycle life improvement, OEM partnership execution, UAM specifications/contracts, and cash management—Gan’s domain as CSO. FY2024 payout at 80% indicates partial achievement across these operational levers .
  • Company initiated product/service revenue in Oct 2024; Q3 2025 revenue $7.1M and nine-month revenue $16.4M; gross margin 51.1% (Q3) and 65.7% (nine months), with product/service mix shifts due to UZ Energy acquisition .
  • R&D expense dynamics show stock-based comp and personnel reductions tied to manufacturing pivot, offset by AI infrastructure investment (Molecular Universe platform) indicating focus on computational materials discovery .
  • Internal control material weakness persists related to sponsor earn-out valuation review precision; management asserts fair presentation despite weakness .

Stock Performance (Pay vs Performance TSR)

YearTSR ($100 initial, cumulative)
202244
202318
202422

Compensation Structure Analysis

  • Equity-heavy mix: RSUs and PSUs constitute a significant portion of Gan’s pay ($724,575 stock awards in 2024; $592,050 in 2023), aligning compensation to long-term share price outcomes .
  • PSUs tied to stringent stock price thresholds (up to $20 for 100% vest in 2024 grants), with no PSUs counted at 12/31/2024—indicative of low near-term realizability and high performance rigor .
  • No severance protections for Gan—reduces guaranteed downside pay; increases reliance on performance/equity for retention .
  • Clawback and anti-hedging/pledging policies strengthen alignment and governance .

Equity Ownership & Alignment (Detailed Outstanding Awards at 12/31/2024)

CategoryQuantityMarket Value Basis
Unvested RSUs (selected grants)186,950; 93,111; 139,470; 423,728$2.19/share market value on 12/31/2024 .
Options (2019)243,277 exercisable$0.15 strike; exp. 2029 .
Options (2021)1,137,115 exercisable; 49,440 unexercisable$0.16 strike; exp. 2031 .

Governance, Policies, and Committees

  • Executive compensation disclosures follow smaller reporting company scaled rules; Compensation Committee sets annual grants, typically in first half of year, avoiding MNPI timing .
  • Stock ownership guidelines: 3× salary for non-CEO executives; 5-year compliance and share retention requirements .
  • Related person transaction policy mandates Audit Committee review of transactions >$120,000 with related persons .

Investment Implications

  • Alignment: Significant equity grants (RSUs/PSUs) and strict anti-hedging/pledging policies align Gan with long-term shareholders, but PSUs’ high stock-price hurdles mean limited near-term realizability—indicative of management confidence but also potential morale/retention pressure if targets remain unmet .
  • Retention risk: Absence of severance for Gan reduces termination costs for SES but may increase external mobility risk; retention value relies on RSU vesting and potential PSU realizability .
  • Selling pressure: The 10b5-1 plan to exercise/sell up to 500,000 vested options through Aug 2026 could create periodic supply of shares, impacting short-term trading dynamics .
  • Execution focus: AIP metrics emphasize technical milestones (cycle life, OEM/UAM deliverables), fitting Gan’s scientific remit; FY2024 80% AIP payout suggests progress but not full attainment . Combined with ongoing internal control weaknesses at the company level, this underscores execution risk monitoring .
  • Ownership: Gan’s beneficial ownership (<1%) is modest in a highly diluted cap table, but company-wide stock ownership guidelines and share retention requirements partially mitigate alignment concerns .