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StoneBridge Acquisition II CorpAPAC

Class A APACUnits APACURights APACRCIK 0002043630

Cash in trust

$59.1M

$59,077,144

Trust per share

$10.27

Redemption value

IPO

Oct 2025

$57.5M raised

Combination deadline

Apr 1, 2027

164 days remaining

Filings on record

64

Latest Oct 6, 2026

Overview

StoneBridge Acquisition II Corp is a special purpose acquisition company incorporated and registered with the SEC under CIK 0002043630. It completed its initial public offering in Oct 2025, raising $57.5M in gross proceeds and listing on Nasdaq. Class A shares trade under the ticker APAC, units under APACU, rights under APACR on Nasdaq. The vehicle is sponsored by StoneBridge through StoneBridge Acquisition Sponsor II LLC. The mandate targets technology, financial services, energy transition. IPO closed, trust funded, no definitive agreement announced.

“we intend to focus our search on international businesses that would benefit in valuation arbitrage by going public in the United States on a U.”
The mandate, as stated in the IPO prospectus

Reading the filings

Arithmetic on what StoneBridge Acquisition II Corp has disclosed, written the way a desk would read it. These are observations, not a rating. Nothing here scores the vehicle or implies a view on it.

  • Trading at a premium to trust

    At $10.28 the shares sit within a point of the $10.27 redemption value, so the market is pricing the cash and little else.

  • Trust versus the $10 unit

    The trust holds $10.27 per public share, 2.7% above the $10.00 the units were sold at. That spread is accrued interest on the trust and, where the charter provides for it, sponsor contributions paid in to buy more time. It is the floor a public shareholder can redeem at, not a valuation of the business.

  • Time on the clock

    164 days to the Apr 1, 2027 deadline. Still workable for a deal already in diligence, tight for one that has not been found. Watch for an extension proxy, which typically appears a month or two before the date.

  • Sponsor promote

    The sponsor's founder block is 5,750,000 shares against 5,750,000 public shares, or 50.0% of the combined count, acquired before the IPO at nominal cost. That promote is the structural dilution every public shareholder carries into a combination, and it is why the economics of a de-SPAC differ so sharply from a conventional IPO.

  • Underwriting

    Maxim Group led the offering. It has been named on 38 SPAC IPOs, book-running 26 of them, and 63% of its resolved vehicles closed a deal. The syndicate has no control over whether a sponsor finds a target, but the quality of the book at pricing shapes who ends up holding the units.

Where it is in its life

From listing to the date StoneBridge Acquisition II Corp must close a deal, extend again, or return the trust. The marker is today.

IPO Oct 1, 2025Deadline Apr 1, 2027383 days in164 days left
How busy it has been

Filings per month since the first one. A vehicle that has gone quiet with a deadline ahead is a different proposition from one that is still working.

15802024-112026-10

64 filings in all. 5 in the last three months, against a busiest month of 15.

Scores

Recomputed 21m ago

Three readings of StoneBridge Acquisition II Corp, each an unweighted mean of the components shown beneath it, and each component a percentile against every live SPAC rather than an absolute we invented. They describe the setup, not the merit. How they are built

Edge

Moderate

How much does the structure protect a holder right now?

42/100

  • Discount to trust38

    -0.06%

  • Trust accretion55

    $10.27 per share

  • Runway33

    164 days

Edge reads the setup, not the business. A vehicle can score well on protection and still be a poor place to leave money once a deal closes.

FOMO

Moderate

How much attention is this vehicle attracting right now?

43/100

  • Filing activity48

    2 in 30 days

  • News coverage21

    1 story in 30 days

  • Premium to trust62

    0.06%

Attention is not quality. FOMO rises on news volume and on the market paying above trust, both of which have preceded plenty of disappointments.

Potential

Moderate

How likely is this vehicle to complete a combination, and at what scale?

34/100

  • Lead bank record41

    63.0%

  • Bank franchise32

    38 SPAC mandates

  • Trust scale22

    $59M

  • Stage40

    searching

Potential is about execution, not about the target. It says nothing about whether the eventual deal is worth owning, because the target is usually unknown when the score is computed.

These are derived measures, not ratings of investment merit. They carry no view on the target, no price target and no recommendation, and a high score is not a reason to buy anything.

News on StoneBridge Acquisition II Corp

Last 90 days

SEC filing history

Free tier: filings older than 24 hours
  • SCHEDULE 13G/A

    Amended beneficial ownership report (passive)

    Accession 0001140361-26-038755

    Oct 6, 2026

    12d ago

    View on EDGAR ↗
  • 8-K

    Other events

    Items 8.01, 9.01 · Accession 0001437749-26-030772

    Sep 21, 2026

    28d ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001708828-26-000264

    Aug 15, 2026

    2mo ago

    View on EDGAR ↗
  • 8-K

    Entry into a material definitive agreement

    Items 1.01, 9.01 · Accession 0001437749-26-027948

    Aug 14, 2026

    2mo ago

    View on EDGAR ↗
  • 10-Q

    Quarterly report

    Accession 0001437749-26-027919

    Aug 14, 2026

    2mo ago

    View on EDGAR ↗
  • 10-Q

    Quarterly report

    Accession 0001829126-26-005284

    May 15, 2026

    5mo ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001072613-26-000421

    May 15, 2026

    5mo ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001708828-26-000154

    May 13, 2026

    5mo ago

    View on EDGAR ↗
  • 8-K

    Current report

    Item 5.02 · Accession 0001829126-26-004881

    May 11, 2026

    5mo ago

    View on EDGAR ↗
  • SCHEDULE 13G/A

    Amended beneficial ownership report (passive)

    Accession 0001140361-26-015630

    Apr 20, 2026

    6mo ago

    View on EDGAR ↗
  • 10-K

    Annual report

    Accession 0001829126-26-002474

    Mar 19, 2026

    7mo ago

    View on EDGAR ↗
  • SCHEDULE 13G/A

    Amended beneficial ownership report (passive)

    Accession 0001076809-26-000017

    Feb 13, 2026

    8mo ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001104659-26-013774

    Feb 12, 2026

    8mo ago

    View on EDGAR ↗
  • SCHEDULE 13G/A

    Amended beneficial ownership report (passive)

    Accession 0001167557-26-000001

    Feb 11, 2026

    8mo ago

    View on EDGAR ↗
  • 8-K

    Other events

    Item 8.01 · Accession 0001829126-26-001192

    Feb 11, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001090

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001089

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001084

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001083

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001082

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001081

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001080

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0001829126-26-001079

    Feb 7, 2026

    8mo ago

    View on EDGAR ↗
  • 8-K

    Current report

    Item 5.02 · Accession 0001829126-26-000908

    Feb 3, 2026

    8mo ago

    View on EDGAR ↗
  • 3

    Initial statement of beneficial ownership

    Accession 0001829126-26-000895

    Feb 3, 2026

    8mo ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001140361-26-003232

    Feb 3, 2026

    8mo ago

    View on EDGAR ↗
  • 3

    Initial statement of beneficial ownership

    Accession 0000812291-25-000028

    Nov 26, 2025

    10mo ago

    View on EDGAR ↗
  • 4

    Statement of changes in beneficial ownership

    Accession 0000812291-25-000027

    Nov 26, 2025

    10mo ago

    View on EDGAR ↗
  • 8-K

    Other events

    Items 8.01, 9.01 · Accession 0001829126-25-009283

    Nov 19, 2025

    11mo ago

    View on EDGAR ↗
  • SCHEDULE 13G

    Beneficial ownership report (passive)

    Accession 0001172661-25-004967

    Nov 14, 2025

    11mo ago

    View on EDGAR ↗

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StoneBridge Acquisition II Corp: questions answered

What is StoneBridge Acquisition II Corp (APAC)?

StoneBridge Acquisition II Corp is a special purpose acquisition company incorporated and registered with the SEC under CIK 0002043630. It completed its initial public offering in Oct 2025, raising $57.5M in gross proceeds and listing on Nasdaq. Class A shares trade under the ticker APAC, units under APACU, rights under APACR on Nasdaq. The vehicle is sponsored by StoneBridge through StoneBridge Acquisition Sponsor II LLC. The mandate targets technology, financial services, energy transition. IPO closed, trust funded, no definitive agreement announced.

How much does StoneBridge Acquisition II Corp hold in trust?

Approximately $59,077,144, or about $10.27 per public share, as at the most recent filing on record. Trust balances move: shareholders redeem at extension votes and at the combination vote, and sponsors pay contributions in to extend. Treat the figure as a point-in-time disclosure, not a running balance.

When must StoneBridge Acquisition II Corp complete a merger?

By Apr 1, 2027. If no combination closes by then the sponsor must seek a further extension or wind the vehicle up and return the trust.

What happens if StoneBridge Acquisition II Corp does not find a target in time?

The charter requires the vehicle to redeem 100% of the public shares and return the trust, pro rata, to public shareholders. That is the mechanism working as designed rather than a default. Founder shares and warrants are worthless in that outcome, which is why the sponsor's incentive is to get a deal done or to buy more time. Across the market, deadline lapsed without a deal; trust returned to public shareholders.

Can I redeem shares in StoneBridge Acquisition II Corp, and at what price?

Public shareholders may elect to redeem in connection with a combination vote and at each extension vote, at the pro-rata trust value on the relevant record date, most recently disclosed at about $10.27 per share. Redemption is a right attached to the public shares only; warrants and rights carry no claim on the trust. The mechanics and the deadline for electing are set out in the proxy statement for the vote in question.

What tickers does StoneBridge Acquisition II Corp trade under?

Class A shares trade as APAC on Nasdaq, the units as APACU, with rights as APACR. Units trade first and separate into their component securities roughly 52 days after the IPO; only the Class A shares carry the redemption right against the trust.

Is the trust value the same as the share price for StoneBridge Acquisition II Corp?

No, and the gap between them is the whole trade. Trust per share is a disclosed, contractual figure of $10.27, being what a redeeming holder receives. The market price is whatever the shares change hands at: most recently $10.28, a premium of 0.06% to the redemption value. Quotes on this site are delayed and indicative; confirm on your own venue before trading.

How much dilution do StoneBridge Acquisition II Corp's founder shares and warrants create?

The founder block is 5,750,000 shares against 5,750,000 public shares, so roughly 50.0% of the combined count sits with the sponsor at nominal cost. Both are disclosed in the prospectus and both survive into the combined company, which is why a de-SPAC at $10 is not economically the same as an IPO at $10.

Who sponsors StoneBridge Acquisition II Corp, and what is their track record?

StoneBridge Acquisition Sponsor II LLC is the sponsor entity, part of the StoneBridge franchise. This is the only vehicle we have attributed to that sponsor. Named principals: Bhargav Marepally.

Which banks underwrote the StoneBridge Acquisition II Corp IPO?

Maxim Group. Maxim Group was credited as book-running manager on the cover. Syndicate membership and role are read from the prospectus cover and the underwriting section.

Is StoneBridge Acquisition II Corp tradeable, and where?

Yes. APAC returned a live quote of $10.28 on Nasdaq. Quotes here are delayed and refreshed on a schedule rather than streamed, so treat the figure as indicative and confirm on your own venue. Units and warrants trade under their own symbols and are quoted separately.

Is StoneBridge Acquisition II Corp a good investment?

That is not a question this site answers. StoneBridge Acquisition II Corp is covered here as reference data: what the company filed, when it filed it, and what the numbers in those filings say. The Edge, FOMO and Potential scores on this page are derived measures with a published formula, not ratings of investment merit: they describe the setup, and every component is shown so you can take them apart. We publish no price targets and no recommendations, and nothing here should be read as advice. The figures are a starting point for your own work, and each one carries the accession number of the filing it came from.

Where does this StoneBridge Acquisition II Corp data come from?

Filings StoneBridge Acquisition II Corp submitted to the SEC under CIK 0002043630: the registration statement and final prospectus for the structure, quarterly and annual reports for the trust, current reports and proxy statements for deals, votes and extensions. Trust economics are taken from the registrant's own XBRL tags rather than parsed from prose, which is why they are exact. Every filing in the history above is listed with its accession number, which identifies the document uniquely on EDGAR; Pro accounts open it directly from the row.

Compiled by the SPACListing research desk

Last reconciled Oct 19, 2026

Every figure on this page is read from documents the registrants filed with the U.S. Securities and Exchange Commission, principally the IPO prospectus (Form 424B4), quarterly and annual reports, current reports and proxy statements, the registrant's own XBRL tags for trust economics. Nothing is sourced from press coverage, from the companies themselves, or from a third-party aggregator. Where a filing does not disclose something, the field is left blank rather than estimated.

Read the full methodology · What is in the dataset · Report a correction

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The context around this vehicle: who else the sponsor has launched, which banks priced it, and where it sits in the wider market.