SIDU Institutional Ownership & Shareholders
SIDUS SPACE INC-CL A (SIDU) is currently held by 105 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $81.11M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of SIDU tracked by InsiderSet, reporting ownership valued at approximately $22.55M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $8.91M, representing an estimated loss of -60.50% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 77% of the total disclosed SIDU value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in SIDUS SPACE INC-CL A (SIDU).
This page ranks the largest institutional SIDU shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
105
Total Reported Value
$81.11M
Largest Holder
Blackrock, Inc.
Largest Position
$22.55M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
139
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 8,025,637 | $22,552,040 | $8,908,457 | -$13,643,583 | -60.50% | |
| Vanguard Capital Management Llc | 0.00% | 3,603,019 | $10,124,483 | $3,999,351 | -$6,125,132 | -60.50% | |
| Vanguard Portfolio Management Llc | 0.00% | 2,029,667 | $5,703,364 | $2,252,930 | -$3,450,434 | -60.50% | |
| Geode Capital Management, Llc | 0.00% | 2,018,659 | $5,673,708 | $2,240,711 | -$3,432,997 | -60.51% | |
| Citadel Advisors Llc | 0.00% | 1,752,690 | $4,925,059 | $1,945,486 | -$2,979,573 | -60.50% | |
| State Street Corp | 0.00% | 1,684,043 | $4,732,161 | $1,869,288 | -$2,862,873 | -60.50% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 1,172,428 | $3,294,523 | $1,301,395 | -$1,993,128 | -60.50% |
| Ubs Group Ag | 0.00% | 775,438 | $2,178,981 | $860,736 | -$1,318,245 | -60.50% | |
| Northern Trust Corp | 0.00% | 643,903 | $1,809,368 | $714,732 | -$1,094,636 | -60.50% | |
| Nuveen, Llc | 0.00% | 619,480 | $1,740,739 | $687,623 | -$1,053,116 | -60.50% | |
| Penserra Capital Management Llc | 0.01% | 616,323 | $1,731,000 | $684,119 | -$1,046,881 | -60.48% | |
| Millennium Management Llc | 0.00% | 613,198 | $1,723,086 | $680,650 | -$1,042,436 | -60.50% | |
| Goldman Sachs Group Inc | 0.00% | 593,404 | $1,667,465 | $658,678 | -$1,008,787 | -60.50% | |
| Vanguard Fiduciary Trust Co | 0.00% | 565,057 | $1,587,810 | $627,213 | -$960,597 | -60.50% | |
| Susquehanna International Group, Llp | 0.00% | 445,023 | $1,250,514 | $493,976 | -$756,538 | -60.50% | |
| Group One Trading Llc | 0.03% | 373,756 | $1,050,254 | $414,869 | -$635,385 | -60.50% | |
| Charles Schwab Investment Management Inc | 0.00% | 260,546 | $732,134 | $289,206 | -$442,928 | -60.50% | |
| Legacy Capital Group California, Inc. | 0.20% | 235,392 | $661,452 | $261,285 | -$400,167 | -60.50% | |
| Alphacentric Advisors Llc | 0.48% | 200,000 | $562,000 | $222,000 | -$340,000 | -60.50% | |
| Xtx Topco Ltd | 0.01% | 198,974 | $559,117 | $220,861 | -$338,256 | -60.50% | |
| Bank Of New York Mellon Corp | 0.00% | 173,386 | $487,216 | $192,458 | -$294,758 | -60.50% | |
| Wells Fargo & Company/Mn | 0.00% | 144,564 | $406,225 | $160,466 | -$245,759 | -60.50% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.00% | 141,143 | $396,752 | $156,669 | -$240,083 | -60.51% | |
| Two Sigma Investments, Lp | 0.00% | 132,294 | $371,746 | $146,846 | -$224,900 | -60.50% | |
| Alliancebernstein L.P. | 0.00% | 137,040 | $317,933 | $152,114 | -$165,819 | -52.16% | |
| Imc-Chicago, Llc | 0.00% | 101,040 | $283,922 | $112,154 | -$171,768 | -60.50% | |
| Rhumbline Advisers | 0.00% | 100,316 | $281,881 | $111,351 | -$170,530 | -60.50% | |
| Bank Of America Corp | 0.00% | 94,726 | $266,180 | $105,146 | -$161,034 | -60.50% | |
| Morgan Stanley | 0.00% | 88,206 | $247,859 | $97,909 | -$149,950 | -60.50% | |
| Deutsche Bank Ag\ | 0.00% | 82,064 | $230,600 | $91,091 | -$139,509 | -60.50% | |
| Price T Rowe Associates Inc | 0.00% | 67,631 | $191,000 | $75,070 | -$115,930 | -60.70% | |
| Citigroup Inc | 0.00% | 65,966 | $185,364 | $73,222 | -$112,142 | -60.50% | |
| Lpl Financial Llc | 0.00% | 62,170 | $174,698 | $69,009 | -$105,689 | -60.50% | |
| Envestnet Asset Management Inc | 0.00% | 53,269 | $149,686 | $59,129 | -$90,557 | -60.50% | |
| Metlife Investment Management, Llc | 0.00% | 51,853 | $145,707 | $57,557 | -$88,150 | -60.50% | |
| Newedge Advisors, Llc | 0.00% | 51,633 | $145,088 | $57,313 | -$87,775 | -60.50% | |
| Brasada Capital Management, Lp | 0.03% | 50,000 | $140,500 | $55,500 | -$85,000 | -60.50% | |
| Osaic Holdings, Inc. | 0.00% | 46,500 | $130,633 | $51,615 | -$79,018 | -60.49% | |
| Invesco Ltd. | 0.00% | 44,778 | $125,827 | $49,704 | -$76,123 | -60.50% | |
| Sabby Management, Llc | 1.01% | 43,377 | $121,889 | $48,148 | -$73,741 | -60.50% | |
| Simplex Trading, Llc | 0.00% | 42,793 | $120,248 | $47,500 | -$72,748 | -60.50% | |
| Bank Of Montreal | 0.00% | 39,200 | $110,152 | $43,512 | -$66,640 | -60.50% | |
| Barclays Plc | 0.00% | 39,179 | $110,093 | $43,489 | -$66,604 | -60.50% | |
| Vanguard Global Advisers, Llc | 0.00% | 37,327 | $104,889 | $41,433 | -$63,456 | -60.50% | |
| Jpmorgan Chase & Co | 0.00% | 34,166 | $98,056 | $37,924 | -$60,132 | -61.32% | |
| Jane Street Group, Llc | 0.00% | 31,891 | $89,614 | $35,399 | -$54,215 | -60.50% | |
| Nverses Capital, Llc | 0.12% | 27,840 | $78,230 | $30,902 | -$47,328 | -60.50% | |
| Kpp Advisory Services Llc | 0.01% | 25,300 | $71,093 | $28,083 | -$43,010 | -60.50% | |
| Police & Firemen'S Retirement System Of New Jersey | 0.00% | 24,307 | $68,303 | $26,981 | -$41,322 | -60.50% | |
| Sbi Securities Co., Ltd. | 0.00% | 22,512 | $63,259 | $24,988 | -$38,271 | -60.50% |
Frequently asked questions about SIDU
Who are the largest institutional holders of SIDU?
The largest institutional holders of SIDU reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, Geode Capital Management, Llc, and Citadel Advisors Llc. InsiderSet ranks institutional holders by their latest reported SIDU position.
What is SIDU institutional ownership?
This page tracks SIDU positions reported by institutional investment managers through SEC Form 13F. SIDUS SPACE INC-CL A (SIDU) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own SIDU?
InsiderSet currently tracks 105 institutional managers reporting SIDU holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of SIDU shareholders.
How much SIDU stock do institutions own?
Institutional investment managers disclosed approximately $81.11M in SIDU holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was SIDU institutional ownership last updated?
The latest SIDU institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional SIDU holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its SIDU position after the reporting date.
Are institutions buying or selling SIDU?
Institutional buying and selling can be analyzed by comparing SIDU positions across consecutive 13F reporting periods. InsiderSet's SIDU Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View SIDU ownership changes.
How has SIDU institutional ownership changed over time?
InsiderSet tracks SIDU institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.