ROCKWELL MEDICAL INC (RMTI) Institutional Ownership Changes & 13F Activity
ROCKWELL MEDICAL INC (RMTI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Vanguard Capital Management Llc, Vanguard Fiduciary Trust Co, Renaissance Technologies LLC, Wealthspire Advisors, Llc, and Geode Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Geode Capital Management, Llc | Buy | +64,364 | +17.6% | 429,180 | $383.42K | Q1 2026 | May 15, 2026 |
| Corsair Capital Management, L.P. | Buy | +50,000 | — | 50,000 | $44.66K | Q1 2026 | May 15, 2026 |
| Harbour Investments, Inc. | Buy | +33,674 | — | 33,674 | $30.08K | Q1 2026 | May 15, 2026 |
| Xtx Topco Ltd | Sell | -15,261 | -24.6% | 46,836 | $41.83K | Q1 2026 | May 15, 2026 |
| Tower Research Capital Llc (Trc) | Sell | -4,422 | -68.4% | 2,042 | $1.82K | Q1 2026 | May 15, 2026 |
| Morgan Stanley | Buy | +326 | +9.2% | 3,868 | $3.46K | Q1 2026 | May 15, 2026 |
| Osaic Holdings, Inc. | Sell | -16 | -3.5% | 445 | $396.00 | Q1 2026 | May 15, 2026 |
| Renaissance Technologies LLC | Buy | +170,800 | +36.5% | 639,120 | $570.86K | Q1 2026 | May 14, 2026 |
| Hrt Financial Lp | Buy | +12,762 | — | 12,762 | $11.00K | Q1 2026 | May 14, 2026 |
| Panagora Asset Management Inc | Buy | +2,457 | +3.7% | 69,726 | $62.28K | Q1 2026 | May 14, 2026 |
| Northern Trust Corp | Buy | +2,125 | +2.1% | 104,523 | $93.36K | Q1 2026 | May 14, 2026 |
| Prudential Financial Inc | Buy | +35,800 | — | 35,800 | $31.98K | Q1 2026 | May 13, 2026 |
| Blackrock, Inc. | Buy | +15,975 | +7.2% | 236,671 | $211.40K | Q1 2026 | May 13, 2026 |
| Group One Trading Llc | Buy | +281 | +2341.7% | 293 | $262.00 | Q1 2026 | May 13, 2026 |
| Leo H. Evart, Inc. | Buy | +9 | — | 9 | $8.00 | Q1 2026 | May 13, 2026 |
| Jane Street Group, Llc | Sell | -22,123 | -21.9% | 78,956 | $70.52K | Q1 2026 | May 12, 2026 |
| Citigroup Inc | Buy | +10,276 | — | 10,276 | $9.18K | Q1 2026 | May 11, 2026 |
| Wealthtrust Axiom Llc | Buy | +1,200 | +3.2% | 39,100 | $34.92K | Q1 2026 | May 11, 2026 |
| Vanguard Capital Management Llc | Buy | +1,182,361 | — | 1,182,361 | $1.06M | Q1 2026 | May 08, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +231,258 | — | 231,258 | $206.51K | Q1 2026 | May 08, 2026 |
| Vanguard Global Advisers, Llc | Buy | +10,571 | — | 10,571 | $9.44K | Q1 2026 | May 08, 2026 |
| Scarborough Advisors, Llc | Buy | +269 | — | 269 | $240.00 | Q1 2026 | May 07, 2026 |
| Spartan Wealth Advisory Services Llc | Buy | +25,010 | — | 25,010 | $22.34K | Q1 2026 | May 06, 2026 |
| Lpl Financial Llc | Sell | -1,000 | -2.4% | 40,743 | $36.39K | Q1 2026 | May 06, 2026 |
| Ubs Group Ag | Buy | +39,171 | +28.0% | 178,886 | $159.75K | Q1 2026 | May 05, 2026 |
| Wealthspire Advisors, Llc | Buy | +151,838 | — | 151,838 | $135.62K | Q1 2026 | May 01, 2026 |
| Fifth Third Bancorp | Buy | +163 | — | 163 | $146.00 | Q1 2026 | May 01, 2026 |
| Sbi Securities Co., Ltd. | Sell | -293 | -81.4% | 67 | $60.00 | Q1 2026 | Apr 28, 2026 |
| Commonwealth Equity Services, Llc | Sell | -45 | -0.4% | 10,084 | $9.01K | Q1 2026 | Apr 27, 2026 |
| Perkins Capital Management Inc | Buy | +2,500 | +3.7% | 70,371 | $62.85K | Q1 2026 | Apr 23, 2026 |
Frequently asked questions about RMTI activity
Which institutional owners are buying RMTI?
Institutional owners buying RMTI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in RMTI activity?
"Buy" means an investor increased their reported position in RMTI compared to the prior reporting period. This reflects growing exposure to ROCKWELL MEDICAL INC (RMTI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in RMTI increasing?
Institutional interest in RMTI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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