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Insider Trading Intelligence
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MM

Mark Mason

C
CHIEF FINANCIAL OFFICER · CITIGROUP INC · CIK 0001487290
FILING MIX · LIFETIME64%/36%
BUYS
21
SELLS
12
TOTAL VALUE
$16.87M
COMPANIES
2
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
39,579
AVG SELL PX
$78.50
TRADE KIND
SHOWING 33 / 33
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
4 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Mark Mason, 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+75.00%-3.48%-0.98%-2.50%-4.39%—
14d4+75.00%-4.60%-2.30%-2.31%-4.33%—
30d4+75.00%-4.81%-4.21%-0.60%+1.18%—
60d4+50.00%-1.52%-1.10%-0.42%-0.33%—
90d4+50.00%-0.38%+1.07%-9.42%-9.42%—
180d4(2 pending)+50.00%+2.56%+8.45%-5.89%-5.89%—
1y4(2 pending)+50.00%+1.03%+5.44%-4.41%-4.41%—
2y4(3 pending)+100.00%-34.82%+0.75%-35.57%-35.57%—
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
C · 39,347.48 shares · as of Feb 20, 2026
068,949137,898206,847275,796202120222023202420252026SHARES 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
2026
FLOW · 21 buys / 12 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
0.539——231.801Jun 11, 2026Jun 12, 2026 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
231.262——231.262Jun 5, 2026Jun 9, 2026 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
2,000$114.96$229.9K233,788.63Feb 20, 2026Feb 24, 2026 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
1,627$114.40$186.1K235,788.63Feb 20, 2026Feb 24, 2026 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
39,347.48——39,347.48Feb 20, 2026Feb 24, 2026 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
52,367.39——237,415.63Feb 11, 2026Feb 13, 2026 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
145——1,675Jan 30, 2026Feb 3, 2026 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
29,209.72$118.04$3.45M185,048.24Jan 20, 2026Jan 20, 2026 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
130——1,530Dec 4, 2025Dec 5, 2025 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
125——1,400Sep 10, 2025Sep 12, 2025 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
132——1,275Jun 10, 2025Jun 11, 2025 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
34,760.9——34,760.9Feb 21, 2025Feb 24, 2025 ↗View →
C
CITIGROUP INC
SALEGRANT
Gift
3,073——214,257.96Feb 14, 2025Feb 18, 2025 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
58,465$83.21$4.86M217,330.96Feb 14, 2025Feb 18, 2025 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
51,871.5——275,795.96Feb 13, 2025Feb 18, 2025 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
151——1,143Jan 31, 2025Feb 3, 2025 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
28,711.24$79.99$2.30M223,924.46Jan 20, 2025Jan 22, 2025 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
132——992Dec 9, 2024Dec 10, 2024 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
146——860Sep 6, 2024Sep 9, 2024 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
138——714Jun 7, 2024Jun 7, 2024 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
50,177.56——50,177.56Feb 23, 2024Feb 27, 2024 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
68,742.1——252,635.7Feb 15, 2024Feb 20, 2024 ↗View →
MSFT
MICROSOFT CORP
PURCHASEGRANT
Stock grant
147——576Jan 31, 2024Feb 1, 2024 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
24,229.54$51.52$1.25M183,893.6Jan 20, 2024Jan 23, 2024 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
76,850.54——208,123.14Feb 16, 2023Feb 21, 2023 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
18,124.55$49.37$894.8K131,272.6Jan 20, 2023Jan 24, 2023 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
52,350.75——149,397.15Feb 10, 2022Feb 14, 2022 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
15,042.23$64.24$966.3K97,046.4Jan 20, 2022Jan 24, 2022 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
15,366$74.03$1.14M112,088.63May 7, 2021May 7, 2021 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
50,177.56——127,454.63Feb 11, 2021Feb 12, 2021 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
11,297.84$63.69$719.6K77,277.07Jan 20, 2021Jan 22, 2021 ↗View →
C
CITIGROUP INC
PURCHASEGRANT
Stock grant
38,411.26——88,574.91Feb 13, 2020Feb 14, 2020 ↗View →
C
CITIGROUP INC
SALE
Chief Financial Officer
10,764.397$81.12$873.2K50,163.65Jan 20, 2020Jan 22, 2020 ↗View →
Other insiders · C
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About this filer
CIK 0001487290
ROLE
Chief Financial Officer
PRIMARY
C
COMPANIES
2
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001487290DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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