Vault-13

HIGHVIEW MERGER CORP HVMC

ORD SH CL A · Common Stock · CUSIP G4569C101

50 institutional holders
20,350,66420.4m shares reported held*
$202.5mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $9.95.

Biggest buyers

ADAGE CAPITAL PARTNERS GP, L.L.C. New +1,800,000+1.8m
AQR Arbitrage LLC New +1,268,222+1.3m
Alberta Investment Management Corp New +1,250,000+1.2m
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND New +1,000,000+1.0m
Magnetar Financial LLC New +929,288+929.3k
Hudson Bay Capital Management LP New +901,878+901.9k
GLAZER CAPITAL, LLC New +900,020+900.0k
MILLENNIUM MANAGEMENT LLC New +799,996+800.0k
Linden Advisors LP New +750,000+750.0k
TWO SIGMA INVESTMENTS, LP New +632,853+632.9k

Biggest sellers

None

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Highview Sponsor Co., LLC 13D · may seek influence new · filed 2025-08-13
Stated purposeFounder Shares On April 16, 2025, the Sponsor paid $25,000 to cover certain of Issuer's offering and formation costs in exchange for 5,750,000 Class B ordinary shares, par value $0.0001 per share of the Issuer (the "Class B ordinary shares" or the "Founder Shares"). The Founder Shares will automatically convert into Class A ordinary shares immediately prior to, concurrently with or immediately following the consummation of the Issuer's initial business combination (the "Business Combination") or earlier at the option of the holder on a one-for-one basis, subject to the adjustments and anti-dilution rights described under the heading "Description of Securities--Founder Shares and Private Placement Shares" in the Issuer's prospectus (File No. 333-288914). Private Placement Units Simultane… Full filing
 20.8% new 6.1m≈ $62.2m 2025-08-13
Adage Capital Management, L.P. 13G · institution new · filed 2025-11-13 7.6% new 1.8m≈ $18.3m 2025-11-13
AQR CAPITAL MANAGEMENT LLC 13G · institution new · filed 2025-11-13 5.4% new 1.3m≈ $12.9m 2025-11-13

Fell to 5% or below in the last year: HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND (4.2%, 2026-02-13), MILLENNIUM MANAGEMENT LLC (4.2%, 2026-01-27)

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.03% of their portfolio Boston, MA 1,800,0001.8m $18.0m $18.0m 0.03% New
2 AQR Arbitrage LLC 0.27% of their portfolio Greenwich, CT 1,268,2221.3m $12.7m $12.7m 0.27% New
3 Alberta Investment Management Corp 0.07% of their portfolio EDMONTON, A0 1,250,0001.2m $12.5m $12.5m 0.07% New
4 HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio TORONTO, A6 1,000,0001.0m $10.0m $10.0m 0.02% New
5 Magnetar Financial LLC 0.09% of their portfolio EVANSTON, IL 929,288929.3k $9.3m $9.3m 0.09% New
6 Hudson Bay Capital Management LP 0.05% of their portfolio STAMFORD, CT 901,878901.9k $9.0m $9.0m 0.05% New
7 GLAZER CAPITAL, LLC 0.24% of their portfolio New York, NY 900,020900.0k $9.0m $9.0m 0.24% New
8 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 799,996800.0k $8.0m $8.0m 0.01% New
9 Linden Advisors LP 0.05% of their portfolio New York, NY 750,000750.0k $7.5m $7.5m 0.05% New
10 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 632,853632.9k $6.3m $6.3m 0.01% New
11 Verition Fund Management LLC 0.03% of their portfolio GREENWICH, CT 621,299621.3k $6.2m $6.2m 0.03% New
12 Shaolin Capital Management LLC 0.23% of their portfolio Miami, FL 600,000600.0k $6.0m $6.0m 0.23% New
13 Radcliffe Capital Management, L.P. 0.29% of their portfolio BALA CYNWYD, PA 532,201532.2k $5.3m $5.3m 0.29% New
14 Driehaus Capital Management LLC 0.03% of their portfolio Chicago, IL 500,000500.0k $5.0m $5.0m 0.03% New
15 Sculptor Capital LP 0.06% of their portfolio New York, NY 500,000500.0k $5.0m $5.0m 0.06% New
16 TENOR CAPITAL MANAGEMENT Co., L.P. 0.07% of their portfolio NEW YORK, NY 500,000500.0k $5.0m $5.0m 0.07% New
17 Schonfeld Strategic Advisors LLC 0.02% of their portfolio NEW YORK, NY 450,000450.0k $4.5m $4.5m 0.02% New
18 COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.02% of their portfolio HARRISBURG, PA 400,000400.0k $4.0m $4.0m 0.02% New
19 Polar Asset Management Partners Inc. 0.08% of their portfolio TORONTO, A6 400,000400.0k $4.0m $4.0m 0.08% New
20 MOORE CAPITAL MANAGEMENT, LP 0.08% of their portfolio NEW YORK, NY 400,000400.0k $4.0m $4.0m 0.08% New
21 Lineage Point Capital LP 1.52% of their portfolio PALM BEACH, FL 400,000400.0k $4.0m $4.0m 1.52% First filing
22 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 398,511398.5k $4.0m $4.0m 0.00% New
23 Periscope Capital Inc. 0.76% of their portfolio Toronto, A6 392,801392.8k $3.9m $3.9m 0.76% New
24 BERKLEY W R CORP 0.19% of their portfolio Greenwich, CT 333,856333.9k $3.3m $3.3m 0.19% New
25 Irenic Capital Management LP 0.39% of their portfolio NEW YORK, NY 300,000300.0k $3.0m $3.0m 0.39% New
26 HBK INVESTMENTS L P 0.03% of their portfolio DALLAS, TX 250,000250.0k $2.5m $2.5m 0.03% New
27 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.07% of their portfolio CHICAGO, IL 250,000250.0k $2.5m $2.5m 0.07% Not comparable
28 First Trust Capital Management L.P. 0.15% of their portfolio CHICAGO, IL 250,000250.0k $2.5m $2.5m 0.15% New
29 PICTON MAHONEY ASSET MANAGEMENT 0.02% of their portfolio Toronto, A6 200,000200.0k $2.0m $2.0m 0.02% New
30 Centiva Capital, LP 0.12% of their portfolio New York, NY 200,000200.0k $2.0m $2.0m 0.12% New
31 Clear Street Group Inc. 0.01% of their portfolio NEW YORK, NY 191,707191.7k $1.9m $1.9m 0.01% New
32 ARISTEIA CAPITAL, L.L.C. 0.05% of their portfolio GREENWICH, CT 187,433187.4k $1.9m $1.9m 0.05% New
33 TORONTO DOMINION BANK 0.00% of their portfolio TORONTO, ONTARIO, A6 175,408175.4k $1.8m $1.8m 0.00% New
34 Westchester Capital Management, LLC 0.08% of their portfolio VALHALLA, NY 170,299170.3k $1.7m $1.7m 0.08% New
35 Bulldog Investors, LLP 0.36% of their portfolio SADDLE BROOK, NJ 160,663160.7k $1.6m $1.6m 0.36% New
36 Governors Lane LP 0.14% of their portfolio NEW YORK, NY 153,935153.9k $1.5m $1.5m 0.14% New
37 MIZUHO SECURITIES USA LLC 0.02% of their portfolio NEW YORK, NY 150,834150.8k $1.5m $1.5m 0.02% New
38 Context Capital Management, LLC 0.04% of their portfolio LAJOLLA, CA 150,000150.0k $1.5m $1.5m 0.04% New
39 TIG Advisors, LLC 0.07% of their portfolio New York, NY 150,000150.0k $1.5m $1.5m 0.07% New
40 GRITSTONE ASSET MANAGEMENT LLC 1.21% of their portfolio Bethesda, MD 127,021127.0k $1.3m $1.3m 1.21% New
41 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 111,904111.9k $1.1m $1.1m 0.00% New
42 DLD Asset Management, LP 0.10% of their portfolio NEW YORK, NY 100,307100.3k $1.0m $1.0m 0.10% New
43 WHITEBOX ADVISORS LLC 0.02% of their portfolio MINNEAPOLIS, MN 100,000100.0k $1.0m $1.0m 0.02% New
44 Meteora Capital, LLC 0.08% of their portfolio Boca Raton, FL 100,000100.0k $1.0m $1.0m 0.08% New
45 Decagon Asset Management LLP 0.01% of their portfolio LONDON, X0 100,000100.0k $27.0k $27.0k 0.01% New
46 ABC ARBITRAGE SA 0.03% of their portfolio PARIS, I0 35,00035.0k $350.0k $350.0k 0.03% New
47 Virtu Financial LLC 0.01% of their portfolio New York, NY 25,16525.2k $252.0k $252.0k 0.01% New
48 BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 25,00025.0k $250.0k $250.0k 0.01% New
49 Mint Tower Capital Management B.V. 0.03% of their portfolio AMSTERDAM, P7 25,00025.0k $250.0k $250.0k 0.03% New
50 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 6363 $630 $630 0.00% New