ISNR · Snow Rothschild Acquisition Corp. · Shareholders & Ownership
Every disclosed holder of ISNR in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns ISNR
13F quarter Jun 30, 2026No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 20,293,561 | 71.84% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 8,200,000 | 29.03% |
| Remaining | 243,561 | -0.86% |
| Registered funds (N-PORT, not summed) | 0 | 0.00% |
Shares outstanding: 28,250,000, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of ISNR
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
Snow Rothschild Acquisition Sponsor LLC
13G
CIK 2137420 · Unknown · Jun 8, 2026
Rule 13d-1(d), exempt investor
|
5,650,000 | ||
| 2 |
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
CIK 1165408 · Registered investment adviser · Jun 30, 2026
|
1,800,000 | ||
| 2.1 |
Adage Capital Management, L.P.
13G
CIK 1535978 · Investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,800,000 | ||
| 3 |
Dryden Capital, LLC
13G
CIK 1756488 · Registered investment adviser · Jun 8, 2026
Rule 13d-1(b), qualified institution
|
1,300,000 | ||
| 4 |
Sculptor Capital LP
13F
CIK 1054587 · Registered investment adviser · Jun 30, 2026
|
1,300,000 | ||
| 5 |
Linden Advisors LP
13F
CIK 1279396 · Registered investment adviser · Jun 30, 2026
|
1,250,000 | ||
| 6 |
|
1,250,000 | ||
| 7 |
Magnetar Financial LLC
13F
CIK 1352851 · Registered investment adviser · Jun 30, 2026
|
1,188,310 | ||
| 7.1 |
Magnetar Financial LLC
13G
CIK 1352851 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
1,188,310 | ||
| 8 |
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND
13F
CIK 1535845 · Non-US institution · Jun 30, 2026
|
1,000,000 | ||
| 9 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
|
1,000,000 | ||
| 10 |
Polar Asset Management Partners Inc.
13F
CIK 1326389 · Registered investment adviser · Jun 30, 2026
|
1,000,000 | ||
| 11 |
MMCAP International Inc. SPC
13F
CIK 1304857 · Unknown · Jun 30, 2026
|
850,000 | ||
| 12 |
Alberta Investment Management Corp
13F
CIK 1463559 · Non-US institution · Jun 30, 2026
|
750,000 | ||
| 13 |
HGC Investment Management Inc.
13F
CIK 1711200 · Non-US institution · Jun 30, 2026
|
750,000 | ||
| 14 |
AQR Arbitrage LLC
13F
CIK 1167456 · Registered investment adviser · Jun 30, 2026
|
739,760 | ||
| 15 |
Shaolin Capital Management LLC
13F
CIK 1766806 · Registered investment adviser · Jun 30, 2026
|
673,244 | ||
| 16 |
BNP PARIBAS ARBITRAGE, SA
13F
CIK 1166588 · Non-US institution · Jun 30, 2026
|
660,240 | ||
| 17 |
HEIGHTS CAPITAL MANAGEMENT, INC
13F
CIK 1081698 · Unknown · Jun 30, 2026
|
650,000 | ||
| 18 |
HBK INVESTMENTS L P
13F
CIK 1011443 · Registered investment adviser · Jun 30, 2026
|
500,000 | ||
| 19 |
Hudson Bay Capital Management LP
13F
CIK 1393825 · Registered investment adviser · Jun 30, 2026
|
500,000 | ||
| 20 |
MOORE CAPITAL MANAGEMENT, LP
13F
CIK 1448574 · Registered investment adviser · Jun 30, 2026
|
500,000 | ||
| 21 |
Wealthspring Capital LLC
13F
CIK 1844495 · Registered investment adviser · Jun 30, 2026
|
428,490 | ||
| 22 |
TENOR CAPITAL MANAGEMENT Co., L.P.
13F
CIK 1346554 · Registered investment adviser · Jun 30, 2026
|
400,000 | ||
| 23 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
|
362,500 | ||
| 24 |
PICTON MAHONEY ASSET MANAGEMENT
13F
CIK 1539041 · Non-US institution · Jun 30, 2026
|
350,000 | ||
| 25 |
WHITEBOX ADVISORS LLC
13F
CIK 1257391 · Registered investment adviser · Jun 30, 2026
|
350,000 | ||
| 26 |
CSS LLC/IL
13F
CIK 1103646 · Unknown · Jun 30, 2026
|
345,700 | ||
| 27 |
Periscope Capital Inc.
13F
CIK 1695320 · Exempt reporting adviser · Jun 30, 2026
|
325,000 | ||
| 28 |
TORONTO DOMINION BANK
13F
CIK 947263 · Bank · Jun 30, 2026
|
325,000 | ||
| 29 |
ARISTEIA CAPITAL, L.L.C.
13F
CIK 1080171 · Registered investment adviser · Jun 30, 2026
|
300,000 | ||
| 30 |
Radcliffe Capital Management, L.P.
13F
CIK 1218275 · Registered investment adviser · Jun 30, 2026
|
299,172 | ||
| 31 |
Calamos Advisors LLC
13F
CIK 1316507 · Registered investment adviser · Jun 30, 2026
|
250,000 | ||
| 32 |
Clear Street Group Inc.
13F
CIK 1881567 · Unknown · Jun 30, 2026
|
224,300 | ||
| 33 |
JPMORGAN CHASE & CO
13F
CIK 19617 · Bank · Jun 30, 2026
|
175,324 | ||
| 34 |
Ghisallo Capital Management LLC
13F
CIK 1825214 · Registered investment adviser · Jun 30, 2026
|
150,000 | ||
| 35 |
Schonfeld Strategic Advisors LLC
13F
CIK 1665241 · Registered investment adviser · Jun 30, 2026
|
150,000 | ||
| 36 |
GLAZER CAPITAL, LLC
13F
CIK 1076809 · Registered investment adviser · Jun 30, 2026
|
106,661 | ||
| 37 |
DLD Asset Management, LP
13F
CIK 1578299 · Registered investment adviser · Jun 30, 2026
|
100,000 | ||
| 38 |
GRITSTONE ASSET MANAGEMENT LLC
13F
CIK 1964236 · Registered investment adviser · Jun 30, 2026
|
100,000 | ||
| 39 |
K2 PRINCIPAL FUND, L.P.
13F
CIK 1461790 · Unknown · Jun 30, 2026
|
100,000 | ||
| 40 |
Lineage Point Capital LP
13F
CIK 2093311 · Unknown · Jun 30, 2026
|
100,000 | ||
| 41 |
Virtu Financial LLC
13F
CIK 1533964 · Unknown · Jun 30, 2026
|
52,974 | ||
| 42 |
DELTEC ASSET MANAGEMENT LLC
13F
CIK 1269950 · Registered investment adviser · Jun 30, 2026
|
50,000 | ||
| 43 |
Quarry LP
13F
CIK 1965207 · Unknown · Jun 30, 2026
|
50,000 | ||
| 44 |
ABC ARBITRAGE SA
13F
CIK 2049221 · Unknown · Jun 30, 2026
|
30,000 | ||
| 45 |
StoneX Group Inc.
13F
CIK 913760 · Unknown · Jun 30, 2026
|
25,836 | ||
| 46 |
Evercore Wealth Management, LLC
13F
CIK 1482689 · Registered investment adviser · Jun 30, 2026
|
12,950 | ||
| 47 |
Centiva Capital, LP
13F
CIK 1692507 · Registered investment adviser · Jun 30, 2026
|
12,300 | ||
| 48 |
Arax Advisory Partners
13F
CIK 1586767 · Registered investment adviser · Jun 30, 2026
|
5,800 |
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.