Insider Profile
Davidoff, Allen Warren
$XRTX
1
Companies Filed At
22
Open-Market Buys (2yr)
$60K
Buy Value (2yr, open-market)
Jul 22, 2025
Most Recent Trade
20
Credibility
Score
41%
Hit Rate
-1.8%
Avg 90d Return
-5.9%
Median 90d Return
64
Evaluated Trades
+75.3%
Best Trade
-56.4%
Worst Trade
Hit rate and returns are based on 64 open-market buys with evaluable 90-day outcomes. Score reflects historical conviction, not a guarantee of future performance. Limited signal — either below-average timing or insufficient trade history.
Cross-Company Track Record
43%
Hit Rate · 90d
-11.7%
Median Alpha · 90d
28
Closed Buys Evaluated
36%
Beat XIU
All-insider base rate: 59% hit rate  · +1.3% mean alpha (n=11504)
cluster buyer high frequency size concentrated
Entry: closing price on SEDI filing date (point-in-time). Exit: 90 calendar days later. Alpha vs XIU.TO (iShares TSX 60). Closed trades only. Not investment advice.
Research 28 closed buys with individual return outcomes available on the Research plan.
Date Company Role Nature Dir. Shares Price Value Score
Jul 22, 2025 $XRTX
XORTX Therapeutics Inc.
— Comp. Grant Buy 8,191 — — 55
Jul 22, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 8,191 $1.00 $8K 55
Jun 23, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 300 $1.20 $360 55
Jun 23, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 500 $1.18 $590 55
May 14, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $1.43 $3K 55
May 14, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $1.43 $3K 55
May 12, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $1.02 $1K 55
May 12, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 300 $1.46 $438 55
Apr 15, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,000 $1.27 $4K 55
Apr 15, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $1.28 $1K 55
Apr 15, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $1.29 $3K 55
Feb 28, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 600 $1.52 $912 55
Feb 28, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,500 $1.52 $4K 55
Feb 14, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,000 $1.36 $4K 55
Feb 14, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,500 $1.29 $3K 55
Feb 14, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,000 $1.31 $4K 55
Feb 07, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,500 $1.36 $3K 55
Feb 07, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $1.34 $3K 55
Jan 23, 2025 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,500 $1.36 $3K 55
Dec 20, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $1.63 $2K 55
Oct 02, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,000 $2.16 $6K 55
Oct 02, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 300 $2.15 $645 55
Oct 02, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $2.17 $2K 55
Sep 16, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 300 $2.40 $720 55
Aug 28, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $1.59 $2K 55
Aug 09, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $2.32 $2K 55
Aug 07, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $2.26 $2K 55
Jul 05, 2024 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $2.46 $2K 55
Mar 04, 2024 $XRTX
XORTX Therapeutics Inc.
— Comp. Grant Buy 6,666 — — 55
Dec 13, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,000 $2.53 $8K 55
Dec 01, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,600 $3.27 $9K 55
Dec 01, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 400 $3.27 $1K 55
Nov 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 7,571 — — 55
Nov 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 84,287 — — 55
Nov 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 17,778 — — 55
Nov 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 37,857 — — 55
Nov 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 415,660 — — 55
Apr 13, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,500 $0.94 $1K 55
Mar 31, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $0.66 $1K 55
Mar 31, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,800 $0.65 $1K 55
Mar 27, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $0.66 $1K 55
Mar 27, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,800 $0.65 $1K 55
Mar 22, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,800 $0.70 $1K 55
Mar 22, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,800 $0.71 $1K 55
Mar 22, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,500 $0.71 $2K 55
Mar 19, 2023 $XRTX
XORTX Therapeutics Inc.
— Expiry Sell 42,589 — — 55
Feb 10, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $0.84 $840 55
Feb 02, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $0.86 $860 55
Feb 02, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $0.86 $860 55
Feb 02, 2023 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,000 $0.87 $870 55
Oct 19, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 500 $1.33 $665 55
Oct 19, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 300 $1.31 $393 55
Oct 19, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,700 $1.32 $2K 55
Oct 17, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 500 $1.20 $600 55
Oct 17, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 2,000 $1.18 $2K 55
Mar 18, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 100 $1.70 $170 55
Mar 18, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 900 $1.71 $2K 55
Mar 18, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 1,600 $1.61 $3K 55
Mar 18, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 400 $1.60 $640 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 100 $1.92 $192 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 500 $1.90 $950 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 200 $1.94 $388 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 4,000 $1.95 $8K 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 100 $1.93 $193 55
Mar 03, 2022 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 100 $1.92 $192 55
Jan 12, 2022 $XRTX
XORTX Therapeutics Inc.
— Comp. Grant Buy 20,000 — — 55
Nov 26, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 3,500 $3.15 $11K 55
Nov 05, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 500 $4.80 $2K 55
Oct 29, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 400 $3.28 $1K 55
Oct 29, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Buy 100 $3.29 $329 55
Sep 24, 2021 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 91,483 — — 55
Sep 24, 2021 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 4,493,803 — — 55
Sep 24, 2021 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 457,411 — — 55
Sep 24, 2021 $XRTX
XORTX Therapeutics Inc.
— Corp. Event Sell 457,411 — — 55
Feb 28, 2021 $XRTX
XORTX Therapeutics Inc.
— Expiry Sell 357,143 — — 55
Feb 09, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Sell 100,000 $0.25 $25K 55
Feb 09, 2021 $XRTX
XORTX Therapeutics Inc.
— Open Market Sell 100,000 $0.40 $40K 55
Muted rows are plan purchases, compensation grants, or DRIP — not open-market. Confluence Scores reflect the company's current score, not the score at time of trade.
Form55 provides data and analysis for informational purposes only. Nothing on this site constitutes investment advice or a recommendation to buy or sell any security. Past performance is not indicative of future results.