18 institutions reported holding $26,797 of ALPHATIME ACQUISITION CORP (ATMCW) in SEC 13F filings for 2026-03-31. Largest institutional holders: RIVERNORTH CAPITAL MANAGEMENT, LLC ($14,020), METEORA CAPITAL, LLC ($9,564), MIZUHO SECURITIES USA LLC ($3,213), Polar Asset Management Partners Inc. ($0), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $14,020 | 200,000 | Hold |
| 2 | METEORA CAPITAL, LLC | $9,564 | 956,375 | Hold |
| 3 | MIZUHO SECURITIES USA LLC | $3,213 | 107,105 | Hold |
| 4 | Polar Asset Management Partners Inc. | $0 | 0 | Exited |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 6 | K2 PRINCIPAL FUND, L.P. | $0 | 0 | Exited |
| 7 | UBS Group AG | $0 | 0 | Exited |
| 8 | WOLVERINE ASSET MANAGEMENT LLC | $0 | 0 | Exited |
| 9 | Periscope Capital Inc. | $0 | 0 | Exited |
| 10 | HGC Investment Management Inc. | $0 | 300,000 | Hold |
| 11 | Creative Planning | $0 | 0 | Exited |
| 12 | BOOTHBAY FUND MANAGEMENT, LLC | $0 | 0 | Exited |
| 13 | Centiva Capital, LP | $0 | 0 | Exited |
| 14 | Shaolin Capital Management LLC | $0 | 0 | Exited |
| 15 | Wealthspring Capital LLC | $0 | 0 | Exited |
| 16 | Clear Street Group Inc. | $0 | 0 | Exited |
| 17 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $0 | 0 | Exited |
| 18 | TORONTO DOMINION BANK | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31