MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share (MGTX)

Q: What does CUSIP G59665102 represent in this 13F holders report?

CUSIP G59665102 is the security identifier for MGTX - MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share used to aggregate holder disclosures.

Q: How many institutions held MGTX - MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share in Q4 2023?

86 institutional investors reported MGTX - MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share for Q4 2023. Use the holders table for investor-level position and value details.

CUSIP: G59665102

Q4 2023 13F Holders as of 31 Dec 2023

Security type / class: Equity / Ordinary Shares, $0.00003881 par value per share
Total 13F shares: 39,193,056
Total 13F value: $275,136,034
Share change: +1,358,013
Put/Call ratio: 197%
SEC-reported price per share: $7.02
Number of holders: 86
Value change: +$9,570,624
Number of buys: 43
Number of sells: 29
Shares outstanding: 92,573,754

Security key

G59665102

Report period

Q4 2023

Institutions

Top holders

MGTX full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 MeiraGTx Holdings plc SEC filings MeiraGTx Holdings plc company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP G59665102

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of MGTX - MeiraGTx Holdings plc - Ordinary Shares, $0.00003881 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

JOHNSON & JOHNSON

Disclosed value leader

PERCEPTIVE ADVISORS LLC

Comparable rows

0/15

Latest evidence

30 Sep 2023

3/4/5 13F Highest disclosed value: $55,635,715 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

PERCEPTIVE ADVISORS LLC has the largest disclosed position value at $55.64M.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens PERCEPTIVE ADVISORS LLC's linked filing trail.

Disclosed position value Top 5

JOHNSON & JOHNSON $42.24M

Johnson & Johnson Innovation - JJ... $42.24M

PERCEPTIVE ADVISORS LLC $55.64M

ADAGE CAPITAL PARTNERS GP, L.L.C. $22.93M

Prosight Management, LP $20.03M

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
JOHNSON & JOHNSON	3/4/5 13F 10%+ Owner · Company 3/4/5 13F	— denominator unverified	$42,237,167 6,641,064 shares	—	09 Nov 2022
Johnson & Johnson Innovation - JJDC, Inc.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$42,237,167 6,641,064 shares	—	15 Sep 2023
PERCEPTIVE ADVISORS LLC	13F Company 13F	— denominator unverified	$55,635,715 11,331,103 shares	—	30 Sep 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.	13F Company 13F	— denominator unverified	$22,934,693 4,671,017 shares	—	30 Sep 2023
Prosight Management, LP	13F Company 13F	— denominator unverified	$20,026,928 4,078,804 shares	—	30 Sep 2023
683 Capital Management, LLC	13F Company 13F	— denominator unverified	$12,066,861 2,457,609 shares	—	30 Sep 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

39,193,056

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

Q4 2023 holders

Holder diff

Investor	Q3 2023 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2023 value	Q4 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend