ALT5 Sigma Corp - Common Stock, $0.001 par value (ALTS) Institutional Ownership

13F Institutional Holders and Ownership History from Q3 2019 to Q4 2025

Type / Class
Equity / Common Stock, $0.001 par value
Symbol
ALTS on Nasdaq
Shares outstanding
125,761,839
Price per share
$2.15
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
51,885,136
Total reported value
$57,073,575
% of total 13F portfolios
0%
Share change
+8,460,660
Value change
+$316,895
Number of holders
78
Price from insider filings
$2.15
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ALT5 Sigma Corp - Common Stock, $0.001 par value (ALTS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
CRCM LP 8.7% +6.2% $19,803,717 +$3,566,419 10,941,280 +22% CRCM LP 31 Dec 2025
VANGUARD GROUP INC 5.6% $16,480,003 6,126,395 The Vanguard Group 30 Sep 2025
ExodusPoint Capital Management, LP 4.8% $36,487,241 5,856,700 ExodusPoint Capital Management, LP 11 Aug 2025
JANE STREET GROUP, LLC 2.8% -50% $3,356,867 -$3,653,782 3,051,697 -52% JANE STREET GROUP, LLC 31 Dec 2025
Clover Crest Bahamas Ltd 8.9% $10,364,987 1,547,013 Clover Crest Bahamas Limited 14 May 2025
CITADEL ADVISORS LLC 0.2% $1,760,642 282,607 Kenneth Griffin 12 Aug 2025

As of 31 Dec 2025, 78 institutional investors reported holding 51,885,136 shares of ALT5 Sigma Corp - Common Stock, $0.001 par value (ALTS). This represents 41% of the company’s total 125,761,839 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of ALT5 Sigma Corp - Common Stock, $0.001 par value (ALTS) together control 40% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
CRCM LP 8.7% 10,941,280 +373% 4.1% $12,035,408
Diametric Capital, LP 7.5% 9,402,946 +165% 2.8% $10,343,240
VANGUARD GROUP INC 4.7% 5,856,146 -4.4% 0% $6,441,761
PRELUDE CAPITAL MANAGEMENT, LLC 4% 5,055,089 +119% 0.41% $5,560,598
BlackRock, Inc. 2.5% 3,162,021 +101% 0% $3,478,223
JANE STREET GROUP, LLC 2.3% 2,915,897 -54% 0% $3,207,487
ExodusPoint Capital Management, LP 1.8% 2,254,910 -25% 0.03% $2,480,401
UBS Group AG 1.5% 1,904,567 +179% 0% $2,095,025
CITADEL ADVISORS LLC 1.2% 1,507,892 +545% 0% $1,658,681
GEODE CAPITAL MANAGEMENT, LLC 1.1% 1,331,963 +0.94% 0% $1,465,816
Jump Financial, LLC 0.8% 1,000,000 0% 0.01% $1,100,000
BARCLAYS PLC 0.54% 683,961 +3.3% 0% $752,357
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.5% 622,526 -77% 0% $684,779
STATE STREET CORP 0.44% 556,996 -20% 0% $612,696
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.41% 510,948 -29% 0% $562,043
XTX Topco Ltd 0.39% 489,500 +299% 0.01% $538,450
683 Capital Management, LLC 0.38% 480,308 0.04% $528,339
MARSHALL WACE, LLP 0.26% 330,632 0% $363,696
TWO SIGMA INVESTMENTS, LP 0.22% 281,609 -59% 0% $309,770
NORTHERN TRUST CORP 0.19% 243,194 0% 0% $267,513
FNY Investment Advisers, LLC 0.16% 199,565 +727% 0.06% $219,000
MILLENNIUM MANAGEMENT LLC 0.15% 192,148 0% $211,363
OMERS ADMINISTRATION Corp 0.15% 185,600 -44% 0% $204,160
CITIGROUP INC 0.12% 150,520 +42% 0% $165,572
Aristides Capital LLC 0.11% 141,200 0.05% $155,320

Institutional Holders of ALT5 Sigma Corp - Common Stock, $0.001 par value (ALTS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 51,885,136 $57,073,575 +$316,895 $1.10 78
2025 Q3 43,422,541 $116,812,246 +$111,429,786 $2.69 90
2025 Q2 1,907,625 $13,821,946 +$4,372,898 $7.24 27
2025 Q1 1,351,590 $5,246,767 +$1,700,083 $3.88 24
2024 Q4 909,531 $4,229,319 +$1,280,983 $4.65 17
2024 Q3 650,073 $1,151,895 +$756,943 $1.77 16
2024 Q2 201,307 $449,766 +$78,019 $2.24 14
2024 Q1 165,162 $456,005 -$266,581 $2.63 11
2023 Q4 310,560 $172,648 +$8,681 $0.56 11
2023 Q3 294,460 $121,546 +$88,728 $0.41 10
2023 Q2 79,037 $82,988 -$65,728 $1.05 7
2023 Q1 137,312 $156,446 +$17,803 $1.14 10
2022 Q4 115,682 $158,197 +$13,900 $1.37 10
2022 Q3 105,351 $224,000 -$74,987 $2.12 4
2022 Q2 130,699 $335,000 +$108,943 $2.55 7
2022 Q1 84,424 $296,000 -$124,136 $3.50 6
2021 Q4 114,449 $467,000 +$176,000 $4.09 10
2021 Q3 70,958 $484,000 -$759,671 $6.82 4
2021 Q2 172,123 $1,342,000 +$606,672 $7.80 9
2021 Q1 91,653 $771,000 +$504,252 $8.41 6
2020 Q4 33,246 $162,000 +$154,540 $4.87 4
2020 Q3 1,583 $7,000 -$42,000 $4.29 3
2020 Q2 15,136 $49,000 +$39,367 $3.25 3
2020 Q1 2,966 $7,000 -$105,543 $2.36 1
2019 Q4 39,107 $115,000 -$65,435 $2.91 4
2019 Q3 61,931 $173,000 +$173,000 $2.78 6