Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in SIDU held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 3.4M | $7.8M | β | 9.109% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 755K | $1.8M | +123.5% | 2.047% | 0.00% |
| 3 | BlackRock, Inc. | 649K | $1.5M | +27741.9% | 1.760% | 0.00% |
| 4 | UBS Group AG | 472K | $1.1M | -5.3% | 1.280% | 0.00% |
| 5 | MILLENNIUM MANAGEMENT LLC | 445K | $1.0M | β | 1.207% | 0.00% |
| 6 | VANGUARD FIDUCIARY TRUST CO | 380K | $881K | β | 1.030% | 0.00% |
| 7 | STATE STREET CORP | 307K | $713K | +296.6% | 0.833% | 0.00% |
| 8 | Foundations Investment Advisors, LLC | 270K | $626K | β | 0.731% | 0.01% |
| 9 | SLT Holdings LLC | 270K | $626K | β | 0.731% | 0.42% |
| 10 | AlphaCentric Advisors LLC | 200K | $464K | β | 0.542% | 0.46% |
| 11 | NORTHERN TRUST CORP | 143K | $331K | +506.9% | 0.387% | 0.00% |
| 12 | GOLDMAN SACHS GROUP INC | 142K | $329K | +162.8% | 0.385% | 0.00% |
| 13 | DnB Asset Management AS | 141K | $326K | 0.0% | 0.381% | 0.00% |
| 14 | Squarepoint Ops LLC | 133K | $310K | β | 0.362% | 0.00% |
| 15 | BANK OF AMERICA CORP /DE/ | 77K | $178K | +24142.9% | 0.208% | 0.00% |
| 16 | BANK OF MONTREAL /CAN/ | 61K | $141K | +33.4% | 0.165% | 0.00% |
| 17 | GROUP ONE TRADING, L.P. | 43K | $101K | β | 0.118% | 0.00% |
| 18 | ENVESTNET ASSET MANAGEMENT INC | 42K | $97K | β | 0.114% | 0.00% |
| 19 | Hudson Bay Capital Management LP | 41K | $96K | β | 0.112% | 0.00% |
| 20 | EverSource Wealth Advisors, LLC | 1K | $94K | β | 0.003% | 0.00% |
| 21 | Qube Research & Technologies Ltd | 36K | $84K | β | 0.098% | 0.00% |
| 22 | Quantbot Technologies LP | 32K | $74K | β | 0.087% | 0.00% |
| 23 | MARSHALL WACE, LLP | 31K | $71K | β | 0.083% | 0.00% |
| 24 | OMERS ADMINISTRATION Corp | 30K | $70K | +136.2% | 0.081% | 0.00% |
| 25 | Brevan Howard Capital Management LP | 30K | $70K | β | 0.081% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in SIDU β a direct measure of their conviction.
Filings activity in SIDU during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new SIDU position in Q1 2026
Institutions that fully closed their SIDU position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 59 | +20% | 13.97% | +2.86 pp | $19M | +26% |
| Q4 2025 | 49 | +133% | 11.11% | +10.35 pp | $15M | +1359% |
| Q3 2025 | 21 | 8.7% | 0.76% | 0.14 pp | $1M | 15% |
| Q2 2025 | 23 | +4.5% | 0.90% | +0.43 pp | $1M | +93% |
| Q1 2025 | 22 | +0.0% | 0.47% | 2.05 pp | $1M | 81% |
| Q4 2024 | 22 | +100% | 2.52% | +2.35 pp | $4M | +1414% |
| Q3 2024 | 11 | 8.3% | 0.17% | 0.10 pp | $0M | 38% |
| Q2 2024 | 12 | β | 0.27% | β | $0M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying SIDU stock.
Based on Q1 2026 13F filings, institutional ownership of Sidus Space, Inc. stands at 14.0%, held across 59 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of SIDU, with approximately 3,360,425 shares worth $0.01B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of SIDU, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for SIDU is 62 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
32 institutions opened new positions in SIDU during Q1 2026, while 22 fully exited. 13 added to existing positions and 13 trimmed.
SIDU institutional ownership rose by 2.86 percentage points quarter-over-quarter, with a net change of +10 holders.
The top 10 institutions account for 84.9% of all reported 13F value in SIDU, and the top 25 account for 97.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Sidus Space, Inc. (SIDU) Institutional Ownership