APAC · StoneBridge Acquisition II Corp · Shareholders & Ownership
Substantial doubt about the company's ability to continue as a going concern.
“management has determined that this mandatory liquidation date, together with the Company's lack of operating revenues and dependence on the Trust Account, raises substantial doubt about the Company's ability to continue as a going concern within one year after the date these financial statements are issued. Management's plans in this regard, including efforts to consummate an initial Business Combination within the Completion Window, cannot be deemed probable of alleviating this substantial doubt as of the date of these financial statements.”View the 10-Q filed Aug 14, 2026
Every disclosed holder of APAC in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns APAC
13F quarter Jun 30, 2026No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 10,080,042 | 125.21% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 295,988 | 3.68% |
| Remaining | 2,325,613 | -28.89% |
| Registered funds (N-PORT, not summed) | 207,033 | 2.57% |
Shares outstanding: 8,050,417, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of APAC
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
RIVERNORTH CAPITAL MANAGEMENT, LLC
13F
CIK 1447578 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
988,650 | ||
| 2 |
GLAZER CAPITAL, LLC
13F
CIK 1076809 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
673,252 | ||
| 3 |
HIGHBRIDGE CAPITAL MANAGEMENT LLC
13F
CIK 919185 · Registered investment adviser · Jun 30, 2026
|
616,167 | ||
| 4 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
590,163 | ||
| 5 |
|
555,505 | ||
| 5.1 |
CLEAR STREET LLC
13G
CIK 1708828 · Broker-dealer · Jun 30, 2026
Rule 13d-1(d), exempt investor, not summed
|
308,923 | ||
| 6 |
MIZUHO SECURITIES USA LLC
13F
CIK 812291 · Unknown · Jun 30, 2026
|
542,755 | ||
| 6.1 |
|
100,000 | ||
| 7 |
WOLVERINE ASSET MANAGEMENT LLC
13F
CIK 1279891 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
519,293 | ||
| 8 |
Karpus Management, Inc.
13F
CIK 1048703 · Investment adviser · Jun 30, 2026
|
465,125 | ||
| 9 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
460,506 | ||
| 10 |
MANGROVE PARTNERS IM, LLC
13F
CIK 1535392 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
450,000 | ||
| 11 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
400,000 | ||
| 12 |
Verition Fund Management LLC
13F
CIK 1454027 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
400,000 | ||
| 13 |
Decagon Asset Management LLP
13F
CIK 1950677 · Unknown · Jun 30, 2026
|
370,703 | ||
| 14 |
METEORA CAPITAL, LLC
13F
CIK 1905106 · Investment adviser · Jun 30, 2026
|
367,912 | ||
| 15 |
Polar Asset Management Partners Inc.
13F
CIK 1326389 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
330,000 | ||
| 16 |
Radcliffe Capital Management, L.P.
13F
CIK 1218275 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
320,000 | ||
| 17 |
Cable Car Capital, LP
13F
CIK 1699575 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
300,000 | ||
| 18 |
AQR CAPITAL MANAGEMENT LLC
13G
CIK 1167557 · Registered investment adviser · Dec 31, 2025
Rule 13d-1(b), qualified institution
|
295,988 | ||
| 19 |
BOOTHBAY FUND MANAGEMENT, LLC
13F
CIK 1549230 · Registered investment adviser · Jun 30, 2026
Classes APAC, APACR
|
275,000 | ||
| 20 |
Logan Stone Capital, LLC
13F
CIK 1535521 · Registered investment adviser · Jun 30, 2026
|
252,000 | ||
| 21 |
|
169,162 | ||
| 22 |
TORONTO DOMINION BANK
13F
CIK 947263 · Bank · Jun 30, 2026
|
121,491 | ||
| 23 |
SONA ASSET MANAGEMENT (US) LLC
13F
CIK 1856405 · Registered investment adviser · Jun 30, 2026
|
117,096 | ||
| 24 |
BERKLEY W R CORP
13F
CIK 11544 · Insurance company · Jun 30, 2026
|
113,358 | ||
| 25 |
First Trust Alternative Opportunities Fund
Fund
· Registered fund · Jun 30, 2026
First Trust Alternative Opportunities Fund, not summed
|
99,000 | ||
| 25.1 |
RiverNorth Opportunities Fund Inc.
Fund
· Registered fund · Jun 30, 2026
RIVERNORTH OPPORTUNITIES FUND INC., not summed
|
99,000 | ||
| 26 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
|
90,625 | ||
| 27 |
|
90,126 | ||
| 28 |
Westchester Capital Management, LLC
13F
CIK 1512805 · Registered investment adviser · Jun 30, 2026
|
80,000 | ||
| 29 |
Crossingbridge Advisors, LLC
13F
CIK 1770024 · Investment adviser · Jun 30, 2026
|
75,000 | ||
| 30 |
Yakira Capital Management, Inc.
13F
CIK 1584639 · Registered investment adviser · Jun 30, 2026
|
63,660 | ||
| 31 |
Quarry LP
13F
CIK 1965207 · Unknown · Jun 30, 2026
|
60,000 | ||
| 32 |
RLH Capital LLC
13F
CIK 2008031 · Unknown · Jun 30, 2026
|
57,500 | ||
| 33 |
SkyView Investment Advisors, LLC
13F
CIK 1848237 · Unknown · Jun 30, 2026
|
49,570 | ||
| 34 |
|
40,000 | ||
| 35 |
Lineage Point Capital LP
13F
CIK 2093311 · Unknown · Jun 30, 2026
|
39,800 | ||
| 36 |
Warberg Asset Management LLC
13F
CIK 1597506 · Unknown · Jun 30, 2026
|
23,700 | ||
| 37 |
SUSQUEHANNA INTERNATIONAL GROUP, LLP
13F
CIK 1446194 · Unknown · Jun 30, 2026
|
11,843 | ||
| 38 |
Rivernorth Enhanced Pre-Merger SPAC ETF
Fund
S000092118 · Registered fund · Jun 30, 2026
Elevation Series Trust, not summed
|
9,033 | ||
| 39 |
UBS Group AG
13F
CIK 1610520 · Bank · Jun 30, 2026
|
52 | ||
| 40 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
|
28 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.