2026-09-23
AI summary pending
View Full Filing (SEC EDGAR)MeiraGTx Holdings plc
$10.50-3%
+$189.9M
Net Activity
+18.30% total shares
Institutions Holding
159
Popularity Rank
#3555
Avg Weight
0.42%
Total Value
$1.1B
Market Cap
$844.5M
159 institutions currently hold MGTX, with 122 net buyers and 35 net sellers this quarter.
Institutional Moves (Q2 2026)
Significantly Increased
Based on recent trading activity
Net Selling Institutions
35
Net Buying Institutions
122
Top 5 by Value
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Across its top 20 institutional holders, MGTX's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 17/100, avg. turnover score 47/100).
MGTX ranks #3555 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
MGTX is a top-conviction position for Sanofi — at 30.9% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
GAMMA Investing LLC has added to its MGTX position for two straight quarters, increasing it by $6.4K to reach $9.7K today.
MGTX is down 3% today, but institutions show net buying of $189.9M this quarter — a divergence between today's price move and the underlying institutional flow.
MGTX posted net income of $79.0M over the trailing twelve months, and currently trades at a P/E of 10.7.
+$301.9M
Total Buy Value
$62.7M
Total Sell Value
122
Net Buyers
35
Net Sellers
MGTX
Q2 2026
Top 5 Institutional Movers
+$62.3M
+$59.2M
+$56.4M
+$36.8M
MGTX does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
3
Filings (90d)
$1.85M
Total Est. Value
146K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Naylor Stuart | 2026-10-06 | $294K |
| Alexandria Forbes | 2026-08-18 | $859K |
| Richard Giroux | 2026-07-21 | $701K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Rubric Capital Management LP | 13G/A | 2026-08-14 | 9.8% |
2
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)G59665102
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,086
Total reported value
$377.7B
Held by 4086 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
6,178
Total reported value
$2.9T
Held by 6178 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
5,841
Total reported value
$1.8T
Held by 5841 institutions — one of the most-tracked stocks on AlphaSMO
Access MGTX's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/MGTXCLI
npx alphasmo stocks get MGTX