MarketPeel
Insider Trading Intelligence
RG

Richard Giroux

MGTX
CFO & COO · MEIRAGTX HOLDINGS PLC · CIK 0001742734
FILING MIX · LIFETIME31%/69%
BUYS
21
SELLS
46
TOTAL VALUE
$6.78M
COMPANIES
1
ACTIVE SINCE
Dec 2019
HOLDINGS NOW
980,000
AVG SELL PX
$9.27
TRADE KIND
SHOWING 67 / 67
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
15 backtested trades · 8 horizons · 10 pending
Forward-return performance of every backtestable P/S trade by Richard Giroux, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d15+53.33%-0.56%+1.17%-1.72%-2.35%
14d15+66.67%-2.44%+2.36%-4.80%-3.39%
30d15+85.71%-7.61%+3.18%-10.79%-10.34%
60d15+60.00%-10.75%-2.09%-8.66%-11.86%
90d15(1 pending)+85.71%-10.86%+1.84%-12.70%-14.89%
180d15(1 pending)+64.29%-8.77%+8.95%-17.71%-22.43%
1y15(3 pending)+75.00%-14.37%+17.41%-31.79%-39.31%
2y15(5 pending)+100.00%-48.89%+22.89%-71.78%-77.17%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
MGTX · 980,000 shares · as of Jun 25, 2026
0296,467592,934889,4011,185,8682020202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2019
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 21 buys / 46 sellsCOVERAGE · 27 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
980,000980,000Jun 25, 2026Jun 29, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
7,000964,530May 27, 2026May 28, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE10b5-1
10b5-1 plan
56,000$10.22$572.3K971,530Apr 21, 2026Apr 21, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
31,726$7.45$236.4K1,027,530Feb 21, 2026Feb 23, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
60,0001,059,256Feb 21, 2026Feb 23, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
60,00060,000Feb 21, 2026Feb 23, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
310,000310,000Jan 17, 2026Jan 21, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
163,916$7.42$1.22M999,256Jan 17, 2026Jan 21, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
310,0001,163,172Jan 17, 2026Jan 21, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
52,500881,994Jan 7, 2026Jan 8, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
28,822$7.73$222.8K853,172Jan 7, 2026Jan 8, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
52,5000Jan 7, 2026Jan 8, 2026View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE10b5-1
10b5-1 plan
24,000$8.87$212.9K829,494Oct 21, 2025Oct 21, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE10b5-1
10b5-1 plan
24,000$8.52$204.5K853,494Jul 22, 2025Jul 22, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
5,000877,494Jun 30, 2025Jul 2, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE10b5-1
10b5-1 plan
24,000$6.00$144.0K882,494Apr 22, 2025Apr 22, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
950,000950,000Apr 3, 2025Apr 7, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
120,000969,947Feb 21, 2025Feb 25, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
63,452$7.30$463.2K906,495Feb 21, 2025Feb 25, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
120,000120,000Feb 21, 2025Feb 25, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE10b5-1
10b5-1 plan
24,000$6.29$151.0K849,947Jan 21, 2025Jan 21, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
25,000887,166Jan 14, 2025Jan 16, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
25,0000Jan 14, 2025Jan 16, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
13,219$5.77$76.3K873,947Jan 14, 2025Jan 16, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
52,50052,500Jan 7, 2025Jan 10, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
27,760$6.34$176.0K862,166Jan 7, 2025Jan 10, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
52,500889,926Jan 7, 2025Jan 10, 2025View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
3,000837,426May 28, 2024May 30, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
13,500840,426Feb 29, 2024Mar 4, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
620,000620,000Jan 17, 2024Jan 17, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
13,219$6.36$84.1K853,926Jan 14, 2024Jan 17, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
25,000867,145Jan 14, 2024Jan 17, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
25,00025,000Jan 14, 2024Jan 17, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
37,5000Jan 8, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
37,500861,974Jan 8, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
19,829$6.63$131.5K842,145Jan 8, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
105,000879,994Jan 7, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
55,520$6.30$349.8K824,474Jan 7, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
105,000105,000Jan 7, 2024Jan 9, 2024View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
240,000240,000Feb 21, 2023Feb 23, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
135,000135,000Feb 21, 2023Feb 23, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
26,438$6.99$184.8K774,994Jan 14, 2023Jan 18, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
50,000801,432Jan 14, 2023Jan 18, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
50,00050,000Jan 14, 2023Jan 18, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
37,50037,500Jan 8, 2023Jan 10, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
37,500771,261Jan 8, 2023Jan 10, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
19,829$6.60$130.9K751,432Jan 8, 2023Jan 10, 2023View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASE
CFO & COO
75,000888,318Jan 8, 2022Jan 11, 2022View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
75,00075,000Jan 8, 2022Jan 11, 2022View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
39,657$21.53$853.8K848,661Jan 8, 2022Jan 11, 2022View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
210,000210,000Jan 7, 2022Jan 11, 2022View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
13,744$20.93$287.7K826,174Oct 20, 2021Oct 21, 2021View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
6,956$21.28$148.0K819,218Oct 20, 2021Oct 21, 2021View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
1,300$20.07$26.1K839,918Oct 19, 2021Oct 21, 2021View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
100,000100,000Jan 14, 2021Jan 19, 2021View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
40,00040,000Jan 14, 2021Jan 19, 2021View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
18,000$16.00$288.0K846,518Dec 17, 2020Dec 21, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
200,000864,518Aug 3, 2020Dec 21, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
11,786$15.16$178.7K1,064,518May 21, 2020May 22, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
6,143$15.03$92.3K1,076,304May 20, 2020May 22, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
71$15.38$1.1K1,082,447May 13, 2020May 15, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
3501,167,518Apr 20, 2020May 15, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
9,000$19.34$174.1K1,167,868Jan 22, 2020Jan 23, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
8,498$19.51$165.8K1,177,370Jan 21, 2020Jan 23, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALE
CFO & COO
502$20.32$10.2K1,176,868Jan 21, 2020Jan 23, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
PURCHASEGRANT
Stock grant
150,000150,000Jan 8, 2020Jan 10, 2020View →
MGTX
MEIRAGTX HOLDINGS PLC
SALEGRANT
Gift
1,0001,185,868Dec 27, 2019Jan 23, 2020View →
Other insiders · MGTX
Loading peer insiders…
About this filer
CIK 0001742734
ROLE
CFO & COO
PRIMARY
MGTX
COMPANIES
1
ACTIVE SINCE
Dec 2019
MARKETPEEL · /INSIDER/0001742734DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

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