Who Owns ALPHA COMPUTE CORP (PRTG)? -- Institutional Holders (2026-06-30)

28 institutions reported holding $574,094 of ALPHA COMPUTE CORP (PRTG) in SEC 13F filings for 2026-06-30. Largest institutional holders: JANE STREET GROUP, LLC ($313,110), Cambridge Investment Research Advisors, Inc. ($94,000), Shay Capital LLC ($91,196), Virtu Financial LLC ($20,000), One68 Global Capital, LLC ($19,558). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1JANE STREET GROUP, LLC$313,1101.2MAdded
2Cambridge Investment Research Advisors, Inc.$94,000370,807New
3Shay Capital LLC$91,196359,038Trimmed
4Virtu Financial LLC$20,00077,036New
5One68 Global Capital, LLC$19,55877,000Trimmed
6CITADEL ADVISORS LLC$14,01655,182New
7UBS Group AG$7,98331,432Added
8QTR Family Wealth, LLC$4,89519,272Hold
9NORDEN GROUP LLC$3,17712,506Hold
10StoneX Group Inc.$3,01512,451New
11SBI Securities Co., Ltd.$1,6936,667New
12MERCER GLOBAL ADVISORS INC /ADV$1,3435,288New
13BlackRock, Inc.$103408Hold
14BNP PARIBAS FINANCIAL MARKETS$27Trimmed
15Princeton Global Asset Management LLC$28Hold
16OSAIC HOLDINGS, INC.$15Hold
17Warberg Asset Management LLC$00Exited
18XTX Topco Ltd$00Exited
19SABBY MANAGEMENT, LLC$00Exited
20TWO SIGMA SECURITIES, LLC$00Exited
21Federation des caisses Desjardins du Quebec$01Hold
22Royal Bank of Canada$075Hold
23JONES FINANCIAL COMPANIES LLLP$00Exited
24CITIGROUP INC$00Exited
25MORGAN STANLEY$00Exited

Source: SEC Form 13F filings · as of 2026-06-30