Eton Pharmaceuticals, Inc.·4

May 27, 6:28 PM ET

Krempa David 4

4 · Eton Pharmaceuticals, Inc. · Filed May 27, 2026

Research Summary

AI-generated summary of this filing

Updated

Eton Pharmaceuticals (ETON) CBO David Krempa Sells Shares, Exercises Options

What Happened
David Krempa, Chief Business Officer of Eton Pharmaceuticals (ETON), exercised stock options totaling 87,794 shares (exercise costs ≈ $204,053) between May 22 and May 27, 2026, and sold 100,000 shares in open-market transactions for a combined proceeds of about $3.23 million. The filing shows corresponding derivative dispositions at $0 for the exercised option instruments (i.e., options were converted to shares). These trades are routine insider option exercises with subsequent sales (commonly a cashless or sell-to-cover pattern).

Key Details

  • Transaction dates: May 22, May 26 and May 27, 2026.
  • Options exercised (acquired): 87,794 shares at exercise prices of $1.37–$3.58, total exercise cost ≈ $204,053.
    • 30,591 @ $3.58 (May 22) — $109,516
    • 25,000 @ $1.38 (May 26) — $34,500
    • 12,524 @ $1.37 (May 26) — $17,158
    • 12,476 @ $1.37 (May 27) — $17,092
    • 7,203 @ $3.58 (May 27) — $25,787
  • Open-market sales (disposed): 100,000 shares for total proceeds ≈ $3,229,923, sold across multiple trades at varying prices (weighted averages shown on the filing).
    • 32,963 @ $33.22 = $1,095,057
    • 9,315 @ $33.88 = $315,594
    • 519 @ $35.00 = $18,165
    • 37,524 @ $31.49 = $1,181,732
    • 19,679 @ $31.47 = $619,375
  • Footnotes indicate multiple-trade ranges and that option grants vested over time (grants from 3/12/2020 vested monthly; grants from 2017/2018 had annual vesting schedules).
  • Filing timeliness: The Form 4 was filed 2026-05-27; trades dated May 22 were reported several days later (appears late for those trades). The filing notes the reporting person authorized another to file on their behalf.

Context

  • For retail investors: exercising options + immediate sales typically reflect an executive converting vested option holdings into cash; it is not an explicit bullish endorsement of the stock. Purchases carry more direct signaling than routine option exercises followed by sales.
  • Derivative explanation: The filing shows options/derivatives being exercised (M code). The $0 “dispositions” reflect the cancellation/conversion of the derivative instruments when underlying shares were issued.
  • Ownership after the transactions was not specified in the provided excerpt; check the full Form 4 for updated beneficial ownership if needed.

If you want, I can fetch the full Form 4 text for precise post-transaction ownership or check whether the May 22 trades were formally marked late by the filer.

Insider Transaction Report

Form 4
Period: 2026-05-22
Krempa David
Chief Business Officer
Transactions
  • Exercise/Conversion

    Common Stock

    2026-05-22$3.58/sh+30,591$109,51668,046 total
  • Sale

    Common Stock

    [F1][F7]
    2026-05-22$33.22/sh32,963$1,095,05735,083 total
  • Sale

    Common Stock

    [F1][F2]
    2026-05-22$33.88/sh9,315$315,59425,768 total
  • Sale

    Common Stock

    2026-05-22$35.00/sh519$18,16525,249 total
  • Exercise/Conversion

    Common Stock

    2026-05-26$1.38/sh+25,000$34,50050,249 total
  • Exercise/Conversion

    Common Stock

    2026-05-26$1.37/sh+12,524$17,15862,773 total
  • Sale

    Common Stock

    [F1][F3]
    2026-05-26$31.49/sh37,524$1,181,73225,249 total
  • Exercise/Conversion

    Common Stock

    2026-05-27$1.37/sh+12,476$17,09237,725 total
  • Exercise/Conversion

    Common Stock

    2026-05-27$3.58/sh+7,203$25,78744,928 total
  • Sale

    Common Stock

    [F1][F5]
    2026-05-27$31.47/sh19,679$619,37525,249 total
  • Exercise/Conversion

    Employee Stock Option

    [F4]
    2026-05-2230,591125,609 total
    Exercise: $3.58From: 2020-03-12Exp: 2030-03-11Common Stock (30,591 underlying)
  • Exercise/Conversion

    Employee Stock Option

    [F8]
    2026-05-2625,0000 total
    Exercise: $1.38From: 2017-08-07Exp: 2027-08-06Common Stock (25,000 underlying)
  • Exercise/Conversion

    Employee Stock Option

    [F6]
    2026-05-2612,52412,476 total
    Exercise: $1.37From: 2017-11-10Exp: 2027-11-09Common Stock (12,524 underlying)
  • Exercise/Conversion

    Employee Stock Option

    [F6]
    2026-05-2712,4760 total
    Exercise: $1.37From: 2017-11-10Exp: 2027-11-09Common Stock (12,476 underlying)
  • Exercise/Conversion

    Employee Stock Option

    [F4]
    2026-05-277,203118,406 total
    Exercise: $3.58From: 2020-03-12Exp: 2030-03-11Common Stock (7,203 underlying)
Footnotes (8)
  • [F1]The Reporting Person will provide upon request by the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price.
  • [F2]The shares were sold in multiple trades at prices ranging from $33.68 to $34.66. The price reported above reflects the weighted average sales price.
  • [F3]The shares were sold in multiple trades at prices ranging from $31.27 to $32.16. The price reported above reflects the weighted average sales price.
  • [F4]The shares subject to the option vested in 48 equal monthly installments from the date of grant (3-12-2020) until fully vested.
  • [F5]The shares were sold in multiple trades at prices ranging from $31.25 to $31.825. The price reported above reflects the weighted average sales price.
  • [F6]The shares subject to the option vested annually from the date of grant (11-10-2017) in four equal installments.
  • [F7]The shares were sold in multiple trades at prices ranging from $32.67 to $33.65. The price reported above reflects the weighted average sales price.
  • [F8]The shares subject to option vested annually from the date of grant (8-7-2017) in four equal installments.
Signature
/s/ Judith Matthews|2026-05-27

Documents

1 file
  • 4
    rdgdoc.xmlPrimary

    FORM 4