MGTX Institutional Ownership
Who owns MeiraGTx Holdings plc and what the big funds did with it last quarter, from every SEC 13F filing. 157 funds reported holding MGTX at Jun 30, 2026, together owning 82.5% of the company.
- ▲118 buying vs 34 selling
- ▲Held by funds +12.3 pts
- ▲Funds holding +24
- ▲Superinvestors: 2 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 157 | 133 | +18.0% |
| In funds' top 10 | 6 | 3 | +100.0% |
| 13F shares | 79.2M | 67.4M | +17.5% |
| Held by funds | 82.5% | 70.2% | +12.3 pts |
| New positions | 38 | 17 | +123.5% |
| Increased | 80 | 46 | +73.9% |
| Reduced | 22 | 40 | −45.0% |
| Sold out | 12 | 15 | −20.0% |
| Calls (shares) | 83K | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | 0.00 | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in MGTX
All superinvestors →
Who owns MGTX
share of fund held shares- Index and passive funds10.8%
- Active managers and hedge funds84.9%
- Banks and brokers4.0%
- Pensions, insurers and other0.3%
The top 10 holders own 73.5% of all MGTX shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
31 funds changed their position- Mackenzie Financial CorpNew+708K sh
- Assenagon Asset Management S.A.New+225K sh
- Principal Financial Group IncNew+83K sh
- Alps Advisors IncAdded+79K sh
- Strs OhioAdded+47K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Sanofi | 12.70% | 12.2M | $165M | 0 |
| 2 | Perceptive Advisors LLC | 11.23% | 10.8M | $146M | +461K |
| 3 | Rubric Capital Management LP | 9.47% | 9.1M | $123M | +2.1M |
| 4 | Johnson & Johnson | 6.91% | 6.6M | $89.7M | 0 |
| 5 | BlackRock, Inc. | 4.95% | 4.8M | $64.3M | +1.6M |
| 6 | Adage Capital Partners Gp, L.l.c. | 4.58% | 4.4M | $59.4M | +400K |
| 7 | Opaleye Management Inc. | 3.70% | 3.5M | $48M | +1.4M |
| 8 | Millennium Management LLC | 3.09% | 3M | $40.1M | −494K |
| 9 | 683 Capital Management, LLC | 2.39% | 2.3M | $31.1M | −150K |
| 10 | Woodline Partners LP | 1.56% | 1.5M | $20.3M | +1.2M |
- Rubric Capital Management LP+2.1M sh+$28.4M
- BlackRock, Inc.+1.6M sh+$21.5M
- Opaleye Management Inc.+1.4M sh+$19.3M
- Woodline Partners LP+1.2M sh+$16.2M
- Jacobs Levy Equity Management, Inc+1M sh+$13.5M
- Heights Capital Management, Inc+850K sh+$11.5M
- State Street Corp+640K sh+$8.6M
- Long Focus Capital Management, LLC+556K sh+$7.5M
- Prosight Management, LP−2.5M sh−$34.3M
- Millennium Management LLC−494K sh−$6.7M
- Logos Global Management LP−700K sh−$6.1M
- Morgan Stanley−277K sh−$3.7M
- 683 Capital Management, LLC−150K sh−$2M
- UBS Group AG−119K sh−$1.6M
- Goldman Sachs Group Inc−114K sh−$1.5M
- Jefferies Financial Group Inc.−167K sh−$1.5M
MGTX institutional ownership FAQ
Who owns the most MGTX stock?
In Q2 2026 13F filings the largest holder of MGTX was Sanofi, followed by Perceptive Advisors LLC and Rubric Capital Management LP. Index fund managers are usually the biggest holders of large companies.
What percentage of MGTX is owned by institutions?
Funds that file 13F reports held 82.5% of MGTX's shares at Jun 30, 2026, compared with 70.2% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying MGTX?
In Q2 2026, 118 funds bought MGTX (38 of them new positions) and 34 sold (12 sold out completely). Among well known investors, 2 added and 1 cut. Our fund sentiment for MGTX is strongly bullish.
What is MGTX's institutional put/call ratio?
Funds reported $0 of MGTX puts against $1.1M of calls, a put/call ratio of 0.00. Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this MGTX ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.