Inflection Point Acquisition Corp. III
Inflection Point Acquisition Corp. III (IPCX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · IPCX · as of Sep 30, 2025
Ownership Breakdown
50
Institutional Holders
▲ 17 vs Q2
$244.07M
Total Inst. Value
▲ $81.40M vs Q2
34.47M
Shares Outstanding
freeFloat 100.00%
24.22M
13F Shares Held
▲ 8.32M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
IPCX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
LINDEN ADVISORS LP blank checks | 1.86M | 7.05% | 7.05% | $18.82B | Nov 14, 2025 | ▲ 275.0K |
HUDSON BAY CAPITAL MANAGEMENT LP blank checks | 1.83M | 6.93% | 6.93% | $18.50B | Dec 15, 2025 | ▲ 1.36M |
JPMORGAN CHASE & CO blank checks | 1.66M | 6.27% | 6.27% | $16.75B | Nov 26, 2025 | NEW |
MMCAP INTERNATIONAL INC. SPC blank checks | 1.40M | 5.29% | 5.29% | $14.10B | Nov 10, 2025 | NEW |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND blank checks | 1.35M | 5.10% | 5.10% | $13.62B | Nov 13, 2025 | ▼ 50.0K |
TENOR CAPITAL MANAGEMENT CO., L.P. blank checks | 1.25M | 4.72% | 4.72% | $12.59B | Nov 14, 2025 | — held |
AQR ARBITRAGE LLC blank checks | 1.05M | 3.98% | 3.98% | $10.59B | Nov 14, 2025 | NEW |
METEORA CAPITAL, LLC blank checks | 1.04M | 3.92% | 3.92% | $10.43B | Nov 17, 2025 | ▲ 53.3K |
MAGNETAR FINANCIAL LLC blank checks | 1.00M | 3.78% | 3.78% | $10.07B | Nov 13, 2025 | — held |
TWO SIGMA INVESTMENTS, LP blank checks | 797.5K | 3.01% | 3.01% | $8.03B | Nov 14, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
9
Increased
+2.27M shares23
New Positions
first time holders5
Decreased
−486.6K shares0
Sold Out
fully exitedNet shares change (top 50)
+1.78M
+2.27M / −486.6K
Net new holders
+27
23 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
IPCX insider trading · insider activity
Source: SEC Form 4
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
BLITZER MICHAEL Chief Executive Officer | Jan 1, 2026 | J-Other | 500,000 | — | — | 0 | Form 4 ↗ |
BLITZER MICHAEL Chief Executive Officer | Jan 1, 2026 | J-Other | 500,000 | — | — | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Inflection Point Acquisition Corp. III (IPCX) is primarily owned by institutional investors, who hold approximately 70.3% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 29.73%.
The largest institutional shareholder of Inflection Point Acquisition Corp. III is LINDEN ADVISORS LP, holding approximately 1.86 million shares — equal to 7.05% of outstanding shares — as of September 30, 2025.
A total of 50 institutional investors currently hold IPCX stock, with a combined institutional value of approximately $244,069,094 as of the most recent 13F filing period.
Frequently asked questions
IPCX ownershipInflection Point Acquisition Corp. III (IPCX) is primarily owned by institutional investors, who hold approximately 70.3% of shares. The largest shareholder is LINDEN ADVISORS LP with a 7.05% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of September 30, 2025.