Alphatime Acquisition Cor-28ATMCWPreferred / convertible

13F holders, Q1 2026 (March 31)
4holders −13
0new positions
13sold out
$0.02avg. 13F price*

At the end of Q1 2026, 4 institutions reported holding Alphatime Acquisition Cor-28 (ATMCW) in their 13F filings, down 13 from Q4 2025. 0 opened new positions and 13 sold out. The largest holders were Rivernorth Capital Management, LLC ($14K), Meteora Capital, LLC ($10K) and Mizuho Securities USA LLC ($3K).

Company
Alphatime Acquisition Cor-28
CUSIP
G0223V121
Latest filing quarter
Q2 2026

History

Number of 13F holders

0510152025 Q1 2024: 21Q1 2024Q2 2024: 21Q2 2024Q3 2024: 22Q3 2024Q4 2024: 22Q4 2024Q1 2025: 18Q1 2025Q2 2025: 19Q2 2025Q3 2025: 20Q3 2025Q4 2025: 17Q4 2025Q1 2026: 4Q1 2026Q2 2026: 1Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions0$0
Exits13$7.0M

All 13F filers, Q4 2025 → Q1 2026: 2,438,195 shares sold, net −2,438,195 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 4 holders

Rivernorth Capital Management, LLC — No change 200,000 $14K
Meteora Capital, LLC — No change 956,375 $10K
Mizuho Securities USA LLC — No change 107,105 $3K
HGC Investment Management Inc. — No change 300,000 $0

"% of holder's portfolio" is ATMCW's weight in each manager's 13F, not the share of Alphatime Acquisition Cor-28 the manager owns.