MCGA — Yorkville Acquisition Corp.
Price · 2025-07-25 → 2026-08-21
271 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2025-07-25.
Performance
Technicals
Measured signals that fired on MCGA
| date | signal | measured base rate |
|---|---|---|
| 2026-08-14 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2025-08-25 | Rillo Troy Chief Financial Officer | Open-market purchase | 91.8K | 1.00 | 91.8K |
| 2025-06-30 | Yorkville Acquisition Sponsor LLC | Open-market purchase | 351.8K | — | — |
| 2025-06-30 | ANGELO MARK Director | Open-market purchase | 351.8K | — | — |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BERKLEY W R CORP | 16.6M | 1.6M |
| MIZUHO SECURITIES USA LLC | 13.1M | 1.3M |
| Murchinson Ltd. | 10.1M | 1.0M |
| Davidson Kempner Capital Management LP | 8.6M | 850.0K |
| Crossingbridge Advisors, LLC | 8.6M | 850.0K |
| METEORA CAPITAL, LLC | 8.0M | 793.9K |
| D. E. Shaw & Co., Inc. | 7.6M | 750.0K |
| DLD Asset Management, LP | 6.5M | 641.1K |
| BOOTHBAY FUND MANAGEMENT, LLC | 6.4M | 637.6K |
| Westchester Capital Management, LLC | 5.6M | 550.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| SCHEDULE 13G/A | 2026-08-13 | — | on EDGAR ↗ |
| 10-Q | 2026-08-12 | 2026-06-30 | on EDGAR ↗ |
| 8-K | 2026-08-10 | 2026-08-07 | on EDGAR ↗ |
| 4 | 2026-07-21 | 2026-05-04 | on EDGAR ↗ |
| 8-K | 2026-07-15 | 2026-05-04 | on EDGAR ↗ |
| 10-Q | 2026-05-15 | 2026-03-31 | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-05-15 | — | on EDGAR ↗ |
| SCHEDULE 13G/A | 2026-05-14 | — | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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