Rockwell Medical, Inc. (RMTI) Institutional OwnershipQ2 2026 13F Data|Updated 2026-11-07
Institutional ownership decreased this quarter (-1.68 pp), while top 10 holders maintain a highly concentrated 89.6% of value.
Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in RMTI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 1.2M | $678K | +4.0% | 3.073% | 0.00% |
| 2 | GEODE CAPITAL MANAGEMENT, LLC | 364K | $214K | -15.2% | 0.910% | 0.00% |
| 3 | RENAISSANCE TECHNOLOGIES LLC | 360K | $198K | -43.7% | 0.899% | 0.00% |
| 4 | JANE STREET GROUP, LLC | 245K | $135K | +210.6% | 0.613% | 0.00% |
| 5 | VANGUARD FIDUCIARY TRUST CO | 233K | $128K | +0.6% | 0.581% | 0.00% |
| 6 | Wealthspire Advisors, LLC | 152K | $84K | 0.0% | 0.379% | 0.00% |
| 7 | BlackRock, Inc. | 145K | $80K | -38.8% | 0.362% | 0.00% |
| 8 | STATE STREET CORP | 101K | $56K | 0.0% | 0.252% | 0.00% |
| 9 | NORTHERN TRUST CORP | 92K | $51K | -12.1% | 0.230% | 0.00% |
| 10 | UBS Group AG | 70K | $39K | -60.9% | 0.175% | 0.00% |
| 11 | PANAGORA ASSET MANAGEMENT INC | 69K | $38K | -0.5% | 0.173% | 0.00% |
| 12 | CORSAIR CAPITAL MANAGEMENT, L.P. | 50K | $28K | 0.0% | 0.125% | 0.00% |
| 13 | LPL Financial LLC | 40K | $22K | -1.2% | 0.101% | 0.00% |
| 14 | WealthTrust Axiom LLC | 33K | $18K | -15.6% | 0.083% | 0.00% |
| 15 | Richmond Brothers, Inc. | 31K | $17K | 0.0% | 0.076% | 0.01% |
| 16 | Spartan Wealth Advisory Services LLC | 25K | $14K | 0.0% | 0.063% | 0.00% |
| 17 | TWO SIGMA SECURITIES, LLC | 25K | $14K | — | 0.062% | 0.00% |
| 18 | Tower Research Capital LLC (TRC) | 14K | $8K | +604.5% | 0.036% | 0.00% |
| 19 | Burford Brothers, Inc. | 14K | $8K | 0.0% | 0.035% | 0.00% |
| 20 | XTX Topco Ltd | 11K | $6K | -76.1% | 0.028% | 0.00% |
| 21 | Vanguard Global Advisers, LLC | 11K | $6K | 0.0% | 0.026% | 0.00% |
| 22 | Savvy Advisors, Inc. | 10K | $6K | — | 0.025% | 0.00% |
| 23 | WELLS FARGO & COMPANY/MN | 10K | $5K | +100.3% | 0.025% | 0.00% |
| 24 | MORGAN STANLEY | 4K | $2K | +11.7% | 0.011% | 0.00% |
| 25 | SHP Wealth Management | 1K | $782 | 0.0% | 0.004% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in RMTI — a direct measure of their conviction.
Filings activity in RMTI during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 34 | 21% | 8.53% | 1.68 pp | $2M | 48% |
| Q1 2026 | 43 | +19% | 10.21% | +1.13 pp | $4M | +20% |
| Q4 2025 | 36 | 2.7% | 9.08% | +0.13 pp | $3M | 23% |
| Q3 2025 | 37 | 14% | 8.95% | 8.24 pp | $4M | 23% |
| Q2 2025 | 43 | 10% | 17.19% | 26.07 pp | $5M | 70% |
| Q1 2025 | 48 | 7.7% | 43.26% | +17.75 pp | $17M | 2.6% |
| Q4 2024 | 52 | 3.7% | 25.51% | 4.20 pp | $17M | 55% |
| Q3 2024 | 54 | — | 29.71% | — | $38M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying RMTI stock.
Based on Q2 2026 13F filings, institutional ownership of Rockwell Medical, Inc. stands at 8.5%, held across 34 reporting institutions.
VANGUARD CAPITAL MANAGEMENT LLC is the largest reported institutional holder of RMTI, with approximately 1,229,888 shares worth $0.00B as of Q2 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of RMTI, including RENAISSANCE TECHNOLOGIES LLC, JANE STREET GROUP, LLC, TWO SIGMA SECURITIES, LLC.
Our composite Smart Money Score for RMTI is 41 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
6 institutions opened new positions in RMTI during Q2 2026, while 14 fully exited. 3 added to existing positions and 25 trimmed.
RMTI institutional ownership fell by 1.68 percentage points quarter-over-quarter, with a net change of -9 holders.
The top 10 institutions account for 89.6% of all reported 13F value in RMTI, and the top 25 account for 99.9%.
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.