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Stephen Webster

LXFR
CORPORATE CONTROLLER · LUXFER HOLDINGS PLC · CIK 0001760464
FILING MIX · LIFETIME52%/48%
BUYS
61
SELLS
57
TOTAL VALUE
$276.7K
COMPANIES
1
ACTIVE SINCE
Mar 2020
HOLDINGS NOW
3,005
AVG SELL PX
$13.98
TRADE KIND
SHOWING 118 / 118
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stephen Webster, 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
7d4+50.00%-0.12%+1.24%-1.36%-1.51%—
14d4+75.00%+1.31%+1.11%+0.20%+0.04%—
30d4+50.00%+8.90%+3.64%+5.26%-0.78%—
60d4+25.00%+5.38%+6.96%-1.58%-4.64%—
90d4+25.00%+11.71%+10.01%+1.70%+2.63%—
180d4+50.00%+29.99%+16.46%+13.53%+9.76%—
1y4+50.00%+53.89%+28.99%+24.90%+25.90%—
2y4(2 pending)+50.00%+22.39%+29.62%-7.24%-7.24%—
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
LXFR · 3,005 shares · as of Mar 20, 2026
07,72715,45323,18030,906202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
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
FLOW · 61 buys / 57 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
1,926——1,926Mar 20, 2026Mar 21, 2026 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
3,005——3,005Mar 20, 2026Mar 21, 2026 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
14,241——14,241Mar 18, 2026Mar 19, 2026 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
12,083——12,083Mar 18, 2026Mar 19, 2026 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
7,120——7,120Mar 16, 2026Mar 18, 2026 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,000——1,000Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
128——23,550Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
900——0Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
125——144Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,790——30,831Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,000——24,550Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
92——29,041Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
800——23,422Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
125——24,675Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
4,244$11.83$50.2K26,662Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,790——5,370Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,070——2,140Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
92——236Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
2,304——0Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
800——0Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
900——27,879Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
2,304——26,979Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,070——28,949Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
75——30,906Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
75——230Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
128——0Jun 9, 2025Jun 11, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,475$11.53$17.0K22,622May 22, 2025May 23, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
6,240——6,240Mar 17, 2025Mar 20, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
2,304——2,304Mar 14, 2025Mar 20, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
900——900Mar 14, 2025Mar 20, 2025 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
127——19,388Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,070——22,423Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
51——22,474Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
127——0Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,000——20,388Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,000——2,000Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
87——21,353Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
800——21,266Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
78——165Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
2,043$10.67$21.8K20,431Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,070——3,210Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
750——0Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
750——19,261Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
51——160Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
78——20,466Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
87——92Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
800——800Mar 20, 2024Mar 21, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
7,160——7,160Mar 18, 2024Mar 18, 2024 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,200$8.46$10.2K18,025Nov 17, 2023Nov 17, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
4,280——4,280Mar 20, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
800——16,833Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
750——15,116Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
800——1,600Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
65——16,033Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,783$15.39$27.4K16,138Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
102——15,218Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
43——17,921Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
750——0Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
43——91Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
45——16,878Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
65——88Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
750——15,968Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
45——97Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
102——0Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,000——17,878Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
750——750Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,000——3,000Mar 16, 2023Mar 20, 2023 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,500——750May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
3,240$15.92$51.6K13,805May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
109——83May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
186——12,884May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
19——16,878May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
2,000——12,698May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
109——14,493May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
167——17,045May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
66——113May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
186——0May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
800——16,859May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
66——16,059May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
800——2,400May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,500——14,384May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
2,000——0May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
19——80May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Chief Financial Officer
1,500——15,993May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
1,500——1,500May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Chief Financial Officer
167——0May 23, 2022May 25, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
4,000——4,000Mar 14, 2022Mar 15, 2022 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
879$19.40$17.1K10,444Dec 1, 2021Dec 2, 2021 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
1,800——11,323Dec 1, 2021Dec 2, 2021 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
1,800——0Dec 1, 2021Dec 2, 2021 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
3,200——3,200Mar 15, 2021Mar 16, 2021 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
1,500$13.33$20.0K9,222Nov 9, 2020Nov 9, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
85——8,794May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
2,450——8,896May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
2,000——11,272May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
232——9,128May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
18——11,111May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
1,800——1,800May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
750——2,250May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
2,450——0May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
389$14.78$5.7K10,722May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
485$14.78$7.2K8,309May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
1,319$14.78$19.5K7,809May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
750——11,093May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
900——0May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
95——10,204May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
900——8,709May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
95——117May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
107——130May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
1,800——10,109May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
18——85May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASE
Corporate Controller
107——11,379May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
1,036$14.78$15.3K10,343May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
232——0May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
2,000——2,000May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
85——0May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
SALE
Corporate Controller
932$14.78$13.8K9,272May 28, 2020May 29, 2020 ↗View →
LXFR
LUXFER HOLDINGS PLC
PURCHASEGRANT
Stock grant
3,000——3,000Mar 13, 2020Mar 17, 2020 ↗View →
Other insiders · LXFR
Loading peer insiders…
About this filer
CIK 0001760464
ROLE
Corporate Controller
PRIMARY
LXFR
COMPANIES
1
ACTIVE SINCE
Mar 2020
MARKETPEEL · /INSIDER/0001760464DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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