US IPO Pipeline SEC S-1 Filings — May 12, 2026

IPO Pipeline

By Gunpowder Editorial ·

3 high priority 3 total filings analysed

Executive Summary

Three S-1 filings on May 12, 2026, highlight an active IPO pipeline with a SPAC (Tidewise), a distressed follow-on (Sunshine Biopharma), and a pre-IPO tech play (Amesite), focusing on healthcare/biotech/AI themes amid small-cap volatility.

Amesite stands out with a 17.9% YoY net loss improvement to $3.617M in FY2025 (ended June 30, 2025) versus $4.403M in FY2024, signaling operational progress despite going concern doubts. Sunshine eyes $5M net proceeds from 5.825M units at $1.03 to boost pro forma cash 55% to $14.16M from $9.12M (Dec 31, 2025), but faces Nasdaq delisting risk with bid price flirting below $1.00. Tidewise's SPAC IPO at $10/unit details extensive dilution/redemption scenarios (up to 100%) with pro forma as of Oct 31, 2025, typical for blank-checks. Portfolio-level pattern: Mixed sentiment dominates (2/3 filings), with loss narrowing in Amesite as sole positive period trend, but pervasive risks like dilution, delisting, and cash burn underscore caution for IPO investors targeting turnarounds. No insider transactions noted, but concentrated ownership in Sunshine (Dr. Slilaty 100% Series B Pref votes) flags control dynamics. Implications: Watch for quick catalysts like Nasdaq decisions and financing closes in volatile small-cap healthcare/AI space.

Materiality, sentiment, and priority are scored by Gunpowder’s analysis pipeline. How we score filings →

Filing types in this digest: S-1

Tracking the trend? Catch up on the prior US IPO Pipeline SEC S-1 Filings digest from May 11, 2026.

Investment Signals (10)

  • Net loss narrowed 17.9% YoY to $3.617M in FY2025 from $4.403M in FY2024, outperforming Sunshine's cash dependency and Tidewise's lack of ops, indicating relative operational improvement

  • Pro forma cash to increase 55% to $14.16M from $9.12M post-$5M offering (Dec 31, 2025 base), providing liquidity buffer vs Amesite's going concern cash shortfall

  • Clean SPAC structure with $10/unit IPO and detailed pro forma dilution scenarios (no redemption to 100%, over-allotment variants as of Oct 31, 2025), standard for de-SPAC upside potential

  • 5.435M shares outstanding as of May 1, 2026, low float ahead of IPO supports potential post-listing momentum vs Sunshine's high warrant overhang

  • Dr. Steve N. Slilaty beneficially owns 100% Series B Preferred (1,000 votes/share), signaling strong management conviction/alignment unlike neutral Tidewise

  • FY2025 10-K and QEs (Sep 30/Dec 31, 2025) provide recent operational visibility, contrasting Tidewise's pre-revenue blank-check status

  • Excludes 15.2M Series B Warrants at $2.07 exercise from offering, preserving upside leverage vs Amesite's unlisted warrants

  • Filing effective dates Jan 30/31, 2026, indicate accelerated IPO timeline vs peers' May 12 filings, potential first-mover in SPAC wave

  • NurseMagic AI healthcare software progress amid risks, positions as AI outlier with loss improvement vs sector cash burns

  • Sunshine Biopharma (NEUTRAL-BULLISH)

    Best-efforts $5M raise at $1.03/unit (near current Nasdaq price) avoids deep discount vs typical distressed offerings

Risk Flags (8)

  • Substantial doubt on viability with insufficient cash for next 12 months; management plans equity raises unassured, worse than Sunshine's pro forma cash boost

  • Nasdaq bid price < $1.00 risk (recent prices above/below), no minimum offering proceeds, full discretion use heightens failure odds

  • Multiple redemption scenarios up to 100% of maximum with forfeited shares if no over-allotment (pro forma Oct 31, 2025), standard SPAC erosion

  • Speculative Series C Warrants at $1.03 exercise + 15.2M Series B at $2.07 overhang, plus 482/400 shares at $220/$4,000, massive dilution potential

  • Extensive risks for NurseMagic compliance, cybersecurity, key personnel dependency, competitive AI pressures exceed Tidewise's blank-check simplicity

  • 100% Series B Pref ownership by Dr. Slilaty (1,000 votes/share) concentrates power, potential for misaligned decisions vs diversified Amesite

  • FY2025 loss $3.617M despite 17.9% YoY improvement still signals ongoing burn, no revenue trends vs Sunshine's cash position

  • Zero operational data or period comparisons as pre-IPO SPAC, fully reliant on future de-SPAC vs Amesite's narrowing losses

Opportunities (8)

  • 17.9% YoY net loss reduction to $3.617M positions for AI healthcare IPO alpha if financing succeeds, undervalued vs delisting-threatened Sunshine

  • $5M raise boosts cash 55% to $14.16M pro forma, opportunity to stabilize Nasdaq bid price >$1.00 and fund growth

  • $10/unit launch with dilution scenarios offers de-SPAC arbitrage if healthcare/AI target (synergy with peers), low entry vs operational risks

  • 5.435M shares as of May 1, 2026, pre-IPO scarcity could drive post-listing squeeze, outperforming Sunshine's warrant dilution

  • Excluded high-exercise Series B Warrants ($2.07) + Series C at $1.03 provide cheap leverage if stock rebounds from delist risk

  • Effective dates Jan 30/31, 2026, enable fast IPO vs May 12 peers, capture SPAC resurgence in biotech/AI

  • Leverage FY2025 10-K + QEs (Sep/Dec 2025) for deep dive into AI metrics, potential short squeeze on going concern resolution

  • 100% Series B ownership by CEO aligns for aggressive turnaround, buy opportunity near $1.03 vs Amesite uncertainty

Sector Themes (5)

  • Distressed Small-Cap Offerings

    2/3 filings (Sunshine, Amesite) mixed sentiment with delisting/going concern risks, contrasting Tidewise neutral; implies biotech/AI funding crunch, favor SPACs for lower entry risks

  • Loss Narrowing in Tech/AI

    Amesite sole YoY improvement (17.9% net loss reduction FY2025), absent in pre-revenue peers; sector trend toward efficiency amid cash shortages, watch for emulation

  • Warrant Dilution Overhang

    Sunshine's 15.2M Series B + new Series C vs Amesite unlisted warrants/Tidewise redemptions; average potential shares inflate 5-10x, pressures post-IPO pops

  • Concentrated Ownership Patterns

    Sunshine CEO 100% Series B votes highlights control theme in IPOs, absent elsewhere; boosts conviction but risks governance flags in healthcare pipeline

  • SPAC vs Operating IPOs

    Tidewise clean $10/unit vs mixed ops in others (cash boost/doubt); resurgence theme with faster timelines (Jan 2026 effective), target synergies in AI/biotech

Watch List (7)

Filing Analyses (3)
Tidewise Acquisition Corp S-1 neutral materiality 9/10

12-05-2026

Tidewise Acquisition Corp (CIK 0002129595), a blank-check SPAC, filed an S-1 registration statement on May 12, 2026, detailing its proposed IPO with units priced at $10.00 each. The filing presents multiple dilution and redemption scenarios (no redemption, 25%, 50%, 75%, and 100% of maximum) under over-allotment exercised or not exercised conditions, with projections as of October 31, 2025, including ordinary shares outstanding, shares subject to redemption, and net proceeds. No operational financial performance data or period-over-period comparisons are provided, as expected for a pre-IPO SPAC.

  • · Filing effective dates referenced: January 30, 2026, and January 31, 2026
  • · Pro forma calculations as of October 31, 2025, for various scenarios including shares forfeited if over-allotment not exercised
Sunshine Biopharma Inc. S-1 mixed materiality 8/10

12-05-2026

Sunshine Biopharma Inc. filed an S-1 registration statement on May 12, 2026, for a best-efforts offering of up to 5,825,242 Common Units (each consisting of common stock and Series C Warrants) at $1.03 per unit, expecting approximately $5.0 million in net proceeds for general corporate purposes, increasing pro forma cash to $14,163,122 from $9,123,308 as of December 31, 2025. However, there is no minimum offering amount, proceeds use is at management's broad discretion, Series C Warrants are speculative with exercise price of $1.03, and the company faces Nasdaq delisting risks due to bid price below $1.00 alongside potential future dilution.

  • · Common stock trades on Nasdaq but at risk of delisting under Bid Price Rule ($1.00 minimum); recent prices slightly above/below $1.00.
  • · Excludes 482 shares issuable at $220 exercise price, 400 shares at $4,000, and 15,227,962 Series B Warrants at $2.07.
  • · Series B Preferred Stock: each share entitles holder to 1,000 votes; Dr. Steve N. Slilaty beneficially owns 100%.
  • · Intracoastal Capital LLC beneficial ownership capped at 9.99% due to warrant blocker provision.
Amesite Inc. S-1 mixed materiality 9/10

12-05-2026

Amesite Inc. (AMST) filed an S-1 registration statement on May 12, 2026, disclosing 5,434,867 shares of common stock outstanding as of May 1, 2026, ahead of a potential IPO. The company narrowed its net loss to $3,617,000 for the fiscal year ended June 30, 2025, from $4,403,000 in FY 2024 (a 17.9% improvement), but raised substantial doubt about its ability to continue as a going concern due to insufficient cash to fund operations for the next 12 months. Extensive risk factors highlight regulatory compliance challenges for NurseMagic™, competitive pressures in AI healthcare software, cybersecurity vulnerabilities, and dependency on key personnel.

  • · Substantial doubt about going concern; management plans include equity financings, but success not assured.
  • · No established trading market expected for warrants; not intended to be listed.
  • · Fiscal year end: June 30; references to 10-K for FY 2025 and 10-Qs for QES Sep 30, 2025 and Dec 31, 2025.

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