Security record · archived quarter
MGTX
MeiraGTx Holdings plc · Healthcare · Biotechnology
61Tracked holders
+4Δ holders
17.36MShares held
$150.28MReported value
+6New positions
−2Exits
Momentum inputs (comparable managers):
holder breadth +7.0% ·
share flow +1.9% ·
net new positions +6.6%
· formula
Broad accumulation: rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q3 2026 | 1 | +1 | 225.36K | $2.48M | +1 | n/a |
| Q2 2026 | 63 | +4 | 21.97M | $296.37M | +8 | −4 |
| Q1 2026 | 61 | +4 | 17.36M | $150.28M | +6 | −2 |
| Q4 2025 | 57 | 0 | 17.52M | $139.25M | n/a | n/a |
| Q3 2025 | 15 | +1 | 13.50M | $111.10M | +1 | n/a |
| Q2 2025 | 11 | 0 | 11.90M | $77.60M | +1 | −1 |
| Q1 2025 | 8 | 0 | 7.28M | $49.35M | +1 | −1 |
| Q4 2024 | 8 | 0 | 6.77M | $41.23M | n/a | n/a |
| Q3 2024 | 7 | -1 | 6.26M | $26.11M | n/a | −1 |
| Q2 2024 | 8 | n/a | 6.33M | $26.64M | n/a | n/a |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Adage Capital Partners ✦ | 4.00M | 0.0% | $34.64M | 0.1% | Held | 8 | SEC ↗ |
| 2 | Millennium Management ✦ | 3.47M | +9.1% | $30.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 3.17M | +3.2% | $27.44M | 0.0% | ▲ Add | 4 | SEC ↗ ×11 |
| 4 | Morgan Stanley ✦ | 1.59M | -13.1% | $13.77M | 0.0% | ▼ Trim | 3 | SEC ↗ ×7 |
| 5 | State Street Global Advisors ✦ (passive) | 753.38K | +3.3% | $6.52M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 584.90K | +1.9% | $5.07M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 7 | Goldman Sachs Group ✦ | 441.41K | -3.4% | $3.82M | 0.0% | ▼ Trim | 3 | SEC ↗ ×2 |
| 8 | D. E. Shaw & Co. ✦ | 425.28K | +11.4% | $3.68M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 9 | UBS Group AG | 303.20K | +36.6% | $2.63M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 10 | Northern Trust Corp | 271.88K | +5.3% | $2.35M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 11 | Bank Of America Corp /De/ | 244.94K | +17.5% | $2.12M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 12 | Nuveen, LLC | 132.45K | +1.0% | $1.15M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 13 | Wellington Management ✦ | 126.33K | -3.3% | $1.09M | 0.0% | ▼ Trim | 8 | SEC ↗ ×3 |
| 14 | Blair William & Co/Il | 125.42K | 0.0% | $1.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | Citadel Advisors ✦ | 116.00K | -19.1% | $1.00M | 0.0% | ▼ Trim | 8 | SEC ↗ ×2 |
| 16 | Bnp Paribas Financial Markets | 111.72K | -12.7% | $967,487 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 110.99K | +2.8% | $961,199 | 0.0% | ▲ Add | 5 | SEC ↗ ×4 |
| 18 | Jane Street Group, Llc | 105.94K | +7.8% | $917,475 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 19 | Charles Schwab Investment… | 100.19K | -10.1% | $867,680 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Bank of New York Mellon Corp | 100.10K | -1.0% | $866,837 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 21 | Sei Investments Co | 99.63K | New | $862,770 | 0.0% | New | 1 | SEC ↗ |
| 22 | Russell Investments Group, Ltd. | 97.17K | +1.5% | $841,474 | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 23 | Invesco Ltd. | 94.44K | +3.9% | $817,807 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 24 | Point72 Asset Management ✦ | 70.95K | New | $614,453 | 0.0% | New | 1 | SEC ↗ |
| 25 | Quantinno Capital Management LP | 56.40K | -7.2% | $488,441 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 26 | Rhumbline Advisers | 55.76K | -0.8% | $482,879 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 27 | Raymond James Financial Inc | 53.86K | -5.9% | $466,393 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 28 | Alliancebernstein L.P. | 54.59K | 0.0% | $433,991 | 0.0% | Held | 2 | SEC ↗ |
| 29 | Brown Advisory Inc | 50.00K | 0.0% | $433,000 | 0.0% | Held | 2 | SEC ↗ |
| 30 | Hsbc Holdings Plc | 39.79K | -16.4% | $337,792 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 31 | Barclays Plc | 38.14K | -60.2% | $330,275 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 32 | Susquehanna International Group, Llp | 36.91K | -52.0% | $319,675 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 33 | T. Rowe Price ✦ | 31.43K | +38.0% | $273,000 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 34 | Deutsche Bank Ag\ | 30.22K | -25.8% | $261,671 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 35 | Hrt Financial Lp | 24.44K | New | $211,000 | 0.0% | New | 1 | SEC ↗ |
| 36 | JPMorgan Chase ✦ | 24.34K | +1.6% | $196,894 | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 37 | Mitsubishi UFJ Asset Management… | 22.03K | -2.4% | $190,806 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | MIRAE ASSET GLOBAL ETFS HOLDINGS… | 21.52K | +2.4% | $186,329 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 39 | Squarepoint Ops LLC | 18.58K | New | $160,937 | 0.0% | New | 1 | SEC ↗ |
| 40 | CIBC Bancorp USA Inc. | 17.28K | n/a | $149,619 | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 41 | Wells Fargo & Company/Mn | 16.59K | -66.7% | $143,704 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 42 | Creative Planning | 15.46K | +0.1% | $133,875 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 43 | Manufacturers Life Insurance… | 13.19K | -11.5% | $114,225 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 44 | State Board Of Administration Of… | 12.24K | 0.0% | $105,972 | 0.0% | Held | 2 | SEC ↗ |
| 45 | Bank Of Nova Scotia | 12.11K | New | $104,838 | 0.0% | New | 1 | SEC ↗ |
| 46 | State Of Wisconsin Investment Board | 10.35K | -75.7% | $89,588 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 47 | ProShare Advisors LLC | 10.16K | -13.8% | $87,951 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 48 | Royal Bank Of Canada | 9.64K | -11.4% | $84,000 | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 49 | Cwm, Llc | 7.77K | -0.2% | $67,271 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 50 | New York State Common Retirement… | 7.26K | 0.0% | $62,898 | 0.0% | Held | 2 | SEC ↗ |
| 51 | Rockefeller Capital Management L.P. | 6.65K | +8.5% | $57,589 | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 52 | Fidelity (FMR) ✦ | 5.82K | -57.9% | $50,410 | 0.0% | ▼ Trim | 4 | SEC ↗ ×2 |
| 53 | Citigroup Inc | 5.37K | -65.5% | $46,521 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 54 | Mirae Asset Global Investments Co.… | 4.20K | +7.3% | $36,355 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Legal & General Group Plc | 3.81K | -10.9% | $33,003 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | California State Teachers… | 2.45K | -12.1% | $21,191 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 57 | UBS AM, a distinct business unit of… | 1.46K | +141.2% | $12,678 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 58 | Optiver Holding B.V. | 414 | +176.0% | $3,585 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 59 | Osaic Holdings, Inc. | 162 | -19.0% | $1,403 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 60 | Pnc Financial Services Group, Inc. | 52 | -35.0% | $450 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 61 | Us Bancorp \De\ | 17 | New | $147 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.
New buyers
| Sei Investments Co | $862,770 | 0.0% |
| Point72 Asset Management | $614,453 | 0.0% |
| Hrt Financial Lp | $211,000 | 0.0% |
| Squarepoint Ops LLC | $160,937 | 0.0% |
| Bank Of Nova Scotia | $104,838 | 0.0% |
| Us Bancorp \De\ | $147 | 0.0% |
Exited
| Zurcher Kantonalbank (Zurich… | $10,089 | was 0.0% |
| Daiwa Securities Group Inc. | $3,000 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 132 holders, 67.36M shares, $581.89M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Oct 20
Giroux Richard
Officer · 56.00K sh · $557,200
Oct 06
Naylor Stuart
Officer · 27.66K sh · $294,292
Aug 18
Forbes Alexandria
Officer, Director · 62.00K sh · $859,320
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 14
SC 13G/A: Rubric Capital Management LP
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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