Calamos Advisors LLC
Position in OYSE — Oyster Enterprises II Acquisition Corp
CIK 1316507
NAPERVILLE, IL
Position in OYSE
as of Jun 30, 2026
· filed Jul 31, 2026
Position Value
$1,266,626
+$1,266,626 QoQ
Shares Held
123,093
0.0% QoQ
Ownership
0.363%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#45
of 61 holders
Holding Since
Jun 2025
5 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in OYSE Over Time
Shares Held
Position Value (USD)
Position in Shell Companies
Financial Services · as of Jun 30, 2026Calamos Advisors LLC holds $93,634,715 across 31 Shell Companies names. OYSE ranks #25 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | POLE |
Andretti Acquisition Corp. II
|
825,000 | $8,868,750 | |
| 2 | SDHI |
Siddhi Acquisition Corp (Cayman Islands)
|
750,000 | $7,815,000 | |
| 3 | QLEP |
Quantum Leap Acquisition Corp
|
750,000 | $7,447,500 | |
| 4 | GTEN |
Gores Holdings X, Inc. / CI
|
700,000 | $7,301,000 | |
| 5 | SVCC |
Stellar V Capital Corp. (Cayman Islands)
|
600,000 | $6,330,000 | |
| 6 | GSRV |
GSR V Acquisition Corp.
|
585,000 | $5,855,850 | |
| 7 | SBXD |
SilverBox Corp IV
|
500,000 | $5,405,000 | |
| 8 | CAII |
Collective Acquisition Corp. II
|
400,000 | $4,020,000 |
All Filings in OYSE
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,266,626 | 123,093 | Shares | Sole | 2026-07-31 | |
| 2026-03-31 OYSEU | — | 123,093 | Shares | Sole | 2026-05-04 | |
| 2025-12-31 OYSEU | — | 123,093 | Shares | Sole | 2026-01-29 | |
| 2025-09-30 OYSEU | $1,255,548 | 123,093 | Shares | Sole | 2025-10-20 | |
| 2025-06-30 OYSEU | $1,245,701 | 123,093 | Shares | Sole | 2025-08-08 | |
| No filing history on record for this holder in this stock. | ||||||