SCIIR · SC II Acquisition Corp. · Holdings
Substantial doubt about the company's ability to continue as a going concern.
“In connection with our assessment of going concern considerations under applicable accounting standards, Management has determined that our possible need for additional financing to enable us negotiate and complete our initial Business Combination, as well as the deadline by which we may be required to liquidate our Trust Account, raise substantial doubt about our ability to continue as a going concern through approximately one year from the date the unaudited condensed financial statements included in Item 1. "Financial Statements" of this Report were issued.”View the 10-Q filed Aug 14, 2026
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 1 13F filersWho Holds SCIIR
Last 3 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 37 filers, like-for-like change +0.8%; actively managed books +0.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 77.5% | 23 | -1.7% |
| Exempt adviser | 1.8% | 1 | 0.0% |
| Adviser | 3.0% | 1 | -2.9% |
| Bank | 8.6% | 1 | +17.2% |
| Non-US | 1.5% | 2 | 0.0% |
| Insurer | 0.0% | 0 | -100.0% |
| Unknown | 7.7% | 9 | +26.0% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Systematic-like | 5.8% | 3 | +9.4% |
| Concentrated | 4.2% | 4 | +0.4% |
| Diversified active | 90.0% | 30 | +0.3% |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 2.9% | 1 | 0.0% |
| Medium turnover | 45.3% | 16 | +2.7% |
| High turnover | 49.2% | 18 | -2.4% |
| Unknown | 2.6% | 2 | +49.0% |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 69.9% | 19 | -0.9% |
| Medium horizon | 4.9% | 4 | +10.2% |
| Long horizon | 14.4% | 6 | +16.6% |
| Unknown | 10.8% | 8 | -9.0% |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 33.5% | 12 | -0.4% |
| $1B to $10B | 47.9% | 16 | -0.9% |
| $10B to $100B | 16.3% | 7 | +6.6% |
| $100B or more | 2.3% | 2 | +18.6% |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Pooled investment vehicles | 73.5% | 21 | -1.7% |
| Registered funds and BDCs | 4.0% | 2 | -0.6% |
| Unknown | 22.5% | 14 | +10.3% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 78.4% | 23 | -1.6% |
| No private funds | 0.9% | 1 | -2.5% |
| Private equity funds | 0.0% | 0 | — |
| Unknown | 20.7% | 13 | +11.3% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 85.4% | 32 | -0.7% |
| Outside the US | 14.6% | 5 | +10.6% |
The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Conviction and Crowding
37 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Shared Holders
Companies SCIIR's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | CHPG ChampionsGate Acquisition Corp | 5 |
| 2 | GTERA Globa Terra Acquisition Corp | 6 |
| 3 | RIBB Ribbon Acquisition Corp. | 4 |
| 4 | QSEA Quartzsea Acquisition Corp | 4 |
| 5 | CRAQ Cal Redwood Acquisition Corp. | 4 |
| 6 | KOYN CSLM Digital Asset Acquisition Corp III, Ltd | 5 |
| 7 | CCAQ Collective Acquisition Corp. | 5 |
| 8 | CRAN Crane Harbor Acquisition Corp. II | 4 |
| 9 | DBCA D. Boral Acquisition I Corp. | 4 |
| 10 | RFAI RF Acquisition Corp II | 3 |
Shareholder Targets
13F filers that own its peers but not SCIIR, quarter ended Jun 30, 2026Found through its holder-overlap peers: CHPG, GTERA, RIBB, QSEA, CRAQ, KOYN, CCAQ, CRAN, DBCA, RFAI, LCCC, OYSE, ALIS, KTWO, FVN, CRAC, NMP, WTG, KCHV, SPEG. 57 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | D. E. Shaw & Co., Inc. Unknown, Systematic-like | $79,179,601 16 held | OYSE, CRAQ, CRAC |
| 2 | LMR Partners LLP Exempt adviser, Diversified active | $34,461,775 5 held | GTERA, OYSE, CRAQ |
| 3 | ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser, Diversified active | $27,351,000 1 held | CRAN |
| 4 | Sculptor Capital LP Registered adviser, Diversified active | $23,261,059 2 held | DBCA, CRAN |
| 5 | Parallax Volatility Advisers, L.P. Registered adviser, Diversified active | $22,812,545 5 held | KOYN, KCHV, SPEG |
| 6 | Alberta Investment Management Corp Non-US, Concentrated | $19,384,000 4 held | CRAN, KOYN, CRAQ |
| 7 | GOLDMAN SACHS GROUP INC Holding company, Index-like | $19,051,266 10 held | KCHV, OYSE, CRAQ |
| 8 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND Non-US, Diversified active | $18,900,938 4 held | CRAN, KOYN, OYSE |
| 9 | MMCAP International Inc. SPC Unknown, Diversified active | $16,120,000 3 held | DBCA, CRAN, OYSE |
| 10 | Centiva Capital, LP Registered adviser, Diversified active | $15,909,119 7 held | DBCA, CRAN, KOYN |
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid ABC ARBITRAGE SA SCIIR | $4,620 | 100.00% | 30,000 | Shares | 2026-10-23 |