Vault-13

ALPHAVEST ACQUISITION CORP AMCI

ORDINARY SHARES · Common Stock · CUSIP G0283A108

0 institutional holders -8 vs Q3 2025
—reported value*
0 new 0 added 0 reduced 8 sold out net sold ≈ $10.3m (-848.0k shares)

* 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.

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

02040Q1 23: 22Q2 23: 26Q3 23: 31Q4 23: 23Q1 24: 21Q2 24: 22Q3 24: 21Q4 24: 13Q1 25: 13Q2 25: 13Q3 25: 8Q4 25: 00Q1 23Q4 23Q3 24Q2 25Q4 25
Numbers
QuarterHolders
Q1 202322
Q2 202326
Q3 202331
Q4 202323
Q1 202421
Q2 202422
Q3 202421
Q4 202413
Q1 202513
Q2 202513
Q3 20258
Q4 20250

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q1 24: 7 bought or addedQ1 24: 8 cut or sold outQ2 24: 6 bought or addedQ2 24: 5 cut or sold outQ2 24Q3 24: 8 bought or addedQ3 24: 9 cut or sold outQ4 24: 2 bought or addedQ4 24: 16 cut or sold outQ4 24Q1 25: 4 bought or addedQ1 25: 6 cut or sold outQ2 25: 4 bought or addedQ2 25: 5 cut or sold outQ2 25Q3 25: 3 bought or addedQ3 25: 6 cut or sold outQ4 25: 0 bought or addedQ4 25: 8 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 202478
Q2 202465
Q3 202489
Q4 2024216
Q1 202546
Q2 202545
Q3 202536
Q4 202508

Biggest buyers

None

Biggest sellers

Karpus Management, Inc. Sold out -261,100-261.1k
BERKLEY W R CORP Sold out -233,745-233.7k
AQR Arbitrage LLC Sold out -149,997-150.0k
Clear Street Group Inc. Sold out -143,678-143.7k
Harraden Circle Investments, LLC Sold out -59,400-59.4k
FNY Investment Advisers, LLC Sold out -100-100
MORGAN STANLEY Sold out -14-14
Farther Finance Advisors, LLC Sold out -3-3

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
Da Shengwei (Sean) 13D · may seek influence new · filed 2025-12-17
Stated purposeThe reporting person holds the securities reported upon for investment purposes. As the Chairman of the Board of Directors and Chief Executive Officer of the Issuer, the reporting person may, from time to time, acquire additional securities of the Issuer, or dispose of securities of the issuer, as well as consider certain other items set forth in subsections (a) through (j) of Item 4 of Schedule 13D. Full filing
 77.0% new 18.6m 2025-12-17
Harraden Circle Investments, LLC 13G · passive investor new · filed 2025-11-05 14.3% new 550.0k 2025-11-05

Fell to 5% or below in the last year: BERKLEY W R CORP (0.0%, 2026-08-05)

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.

DateInsiderTradeSharesPrice ValueTheir holding
2025-12-09 Harraden Circle Investors, LP +7 10% owner · See Remarks Sold 133,722 $14.28 $1.9m133.7k shares -29%
2025-12-08 Harraden Circle Investors, LP +7 10% owner · See Remarks Sold 82,002 $13.85 $1.1m82.0k shares -15%
2025-12-05 Harraden Circle Investors, LP +7 10% owner · See Remarks Sold 4,451 $8.91 $39.6k4.5k shares -1%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change