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SM

Stephen M. Mason

CAH
CEO, MEDICAL SEGMENT · CARDINAL HEALTH INC · CIK 0001786065
FILING MIX · LIFETIME40%/60%
BUYS
18
SELLS
27
TOTAL VALUE
$48.95M
COMPANIES
1
ACTIVE SINCE
Aug 2020
HOLDINGS NOW
49,961
AVG SELL PX
$126.06
TRADE KIND
SHOWING 45 / 45
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
9 backtested trades · 8 horizons · 3 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Stephen M. 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
7d9+100.00%-1.25%+0.81%-2.07%-0.39%—
14d9+11.11%+1.02%+1.23%-0.21%+0.28%—
30d9+11.11%+0.97%+2.29%-1.32%-0.41%—
60d9+11.11%+4.28%+2.73%+1.55%+1.12%—
90d9+11.11%+20.26%+4.63%+15.64%+14.40%—
180d9+0.00%+26.62%+10.09%+16.53%+6.70%—
1y9+0.00%+39.28%+21.55%+17.73%+20.32%—
2y9(3 pending)+0.00%+81.78%+47.88%+33.89%+22.22%—
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
CAH · 49,961 shares · as of Aug 18, 2026
028,98357,96686,948115,931202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
2026
FLOW · 18 buys / 27 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
3,100$234.59$727.2K49,961Aug 18, 2026Aug 20, 2026 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
12,829$237.26$3.04M18,061Aug 18, 2026Aug 20, 2026 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
10,876$236.50$2.57M30,890Aug 18, 2026Aug 20, 2026 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
8,195$235.62$1.93M41,766Aug 18, 2026Aug 20, 2026 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
5,868——78,350Aug 15, 2026Aug 18, 2026 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
25,289$235.17$5.95M53,061Aug 15, 2026Aug 18, 2026 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
46,992——72,482Aug 4, 2026Aug 4, 2026 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
595$212.26$126.3K25,490Dec 1, 2025Dec 2, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
4,167$149.39$622.5K26,085Aug 19, 2025Aug 19, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
2,997$147.87$443.2K64,663Aug 19, 2025Aug 19, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
34,411$148.83$5.12M30,252Aug 19, 2025Aug 19, 2025 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
8,957——98,471Aug 15, 2025Aug 19, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
30,811$150.22$4.63M67,660Aug 15, 2025Aug 19, 2025 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
54,537——89,514Aug 12, 2025Aug 12, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
5,694$167.18$951.9K34,977Jun 30, 2025Jun 30, 2025 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
5,990——0Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASE
CEO, GMPD Segment
5,990$84.27$504.8K78,698Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASE
CEO, GMPD Segment
8,971$83.19$746.3K87,669Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
8,971——0Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
46,598$109.21$5.09M41,071Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
400$109.70$43.9K40,671Aug 19, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
1,985$107.91$214.2K72,708Aug 16, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
12,047——74,693Aug 15, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, GMPD Segment
20,667$106.36$2.20M62,646Aug 15, 2024Aug 19, 2024 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
45,958——83,313Aug 13, 2024Aug 14, 2024 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
10,995$86.40$950.0K63,860Aug 17, 2023Aug 17, 2023 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
18,528$87.40$1.62M45,332Aug 17, 2023Aug 17, 2023 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
7,977$88.42$705.3K37,355Aug 17, 2023Aug 17, 2023 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
13,274——74,855Aug 16, 2023Aug 17, 2023 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
25,701$92.99$2.39M61,581Aug 15, 2023Aug 17, 2023 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
38,282——87,282Aug 7, 2023Aug 8, 2023 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASE
CEO, Medical Segment
12,176$66.43$808.9K110,216Nov 7, 2022Nov 9, 2022 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
61,216$80.87$4.95M49,000Nov 7, 2022Nov 9, 2022 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASE
CEO, Medical Segment
4,688$71.43$334.9K98,040Nov 7, 2022Nov 9, 2022 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
12,176——0Nov 7, 2022Nov 9, 2022 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
4,688——0Nov 7, 2022Nov 9, 2022 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
17,150——115,931Aug 15, 2022Aug 17, 2022 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
22,579$69.32$1.57M93,352Aug 15, 2022Aug 17, 2022 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
29,893——98,781Aug 9, 2022Aug 11, 2022 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
21,277——79,283Aug 15, 2021Aug 17, 2021 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
10,395$51.70$537.4K68,888Aug 15, 2021Aug 17, 2021 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
7,209——58,006Aug 3, 2021Aug 5, 2021 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
18,629——54,087Aug 15, 2020Aug 17, 2020 ↗View →
CAH
CARDINAL HEALTH INC
SALE
CEO, Medical Segment
3,290$53.68$176.6K50,797Aug 15, 2020Aug 17, 2020 ↗View →
CAH
CARDINAL HEALTH INC
PURCHASEGRANT
Stock grant
429——35,458Aug 3, 2020Aug 4, 2020 ↗View →
Other insiders · CAH
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About this filer
CIK 0001786065
ROLE
CEO, Medical Segment
PRIMARY
CAH
COMPANIES
1
ACTIVE SINCE
Aug 2020
MARKETPEEL · /INSIDER/0001786065DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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