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Insider Trading Intelligence
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SM

Sandra Milligan

OGN
HEAD OF RESEARCH & DEVELOPMENT · ORGANON & CO. · CIK 0001859810
FILING MIX · LIFETIME69%/31%
BUYS
36
SELLS
16
TOTAL VALUE
$459.2K
COMPANIES
3
ACTIVE SINCE
Jun 2021
HOLDINGS NOW
151,625
AVG SELL PX
$28.94
TRADE KIND
SHOWING 52 / 52
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
2 backtested trades · 8 horizons · 2 pending
Forward-return performance of every backtestable P/S trade by Sandra Milligan, 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
7d2+50.00%+10.91%+1.01%+9.90%+9.90%—
14d2+50.00%+11.84%+0.58%+11.25%+11.25%—
30d2+100.00%+43.12%+4.15%+38.97%+38.97%—
60d2+100.00%+17.08%+5.14%+11.94%+11.94%—
90d2+100.00%+36.27%+7.18%+29.09%+29.09%—
180d2+50.00%+4.04%+11.61%-7.57%-7.57%—
1y2(1 pending)+0.00%-5.02%+33.73%-38.75%-38.75%—
2y2(1 pending)+100.00%+234.28%+52.41%+181.87%+181.87%—
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
OGN · 28,599 shares · as of May 4, 2023
028,99557,99086,985115,98020222023SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 36 buys / 16 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
115,000——115,000Jun 4, 2026Jun 5, 2026 ↗View →
SYRE
SPYRE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
8,026——8,026May 27, 2026May 29, 2026 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASE
26,050$1.92$50.0K58,050Aug 19, 2025Aug 20, 2025 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
115,000——115,000Jun 25, 2025Jun 26, 2025 ↗View →
SYRE
SPYRE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
25,000——25,000May 29, 2025Jun 2, 2025 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
115,000——115,000Jun 6, 2024Jun 6, 2024 ↗View →
SYRE
SPYRE THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
21,980——21,980May 14, 2024May 16, 2024 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASE
32,000$0.79$25.2K32,000Nov 15, 2023Nov 17, 2023 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
35,000——35,000Jun 8, 2023Jun 9, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
4,984——30,767May 4, 2023May 8, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
4,984——4,984May 4, 2023May 8, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
2,168$24.24$52.6K28,599May 4, 2023May 8, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
1,899——0May 1, 2023May 3, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
826$24.63$20.3K25,783May 1, 2023May 3, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
1,899——26,609May 1, 2023May 3, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
104,961——104,961Mar 31, 2023Apr 4, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
29,230——29,230Mar 31, 2023Apr 4, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
5,964——11,928Mar 31, 2023Apr 4, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
2,115$23.09$48.8K24,710Mar 31, 2023Apr 4, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
5,964——26,825Mar 31, 2023Apr 4, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
2,346$25.09$58.9K20,861Feb 28, 2023Mar 2, 2023 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
7,976——0Feb 28, 2023Mar 2, 2023 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
7,976——23,207Feb 28, 2023Mar 2, 2023 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
30,000——30,000Jun 9, 2022Jul 15, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
4,984——17,037May 4, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
4,984——4,984May 4, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
1,806$32.44$58.6K15,231May 4, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
1,842——12,578May 3, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
525$32.08$16.8K12,053May 3, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
1,842——1,842May 3, 2022May 5, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
540$32.33$17.5K10,736May 1, 2022May 3, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
1,896——1,896May 1, 2022May 3, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
1,896——11,276May 1, 2022May 3, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
55,114——55,114Mar 31, 2022Apr 4, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
17,892——17,892Mar 31, 2022Apr 4, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
10,171——0Feb 28, 2022Mar 2, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASE
Head of Research & Development
10,171——12,321Feb 28, 2022Mar 2, 2022 ↗View →
OGN
ORGANON & CO.
SALE
Head of Research & Development
2,941$37.57$110.5K9,380Feb 28, 2022Mar 2, 2022 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
22,321——22,321Aug 17, 2021Aug 19, 2021 ↗View →
GOSS
GOSSAMER BIO, INC.
PURCHASEGRANT
Stock grant
47,000——47,000Jun 10, 2021Jun 14, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
115,980——115,980Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
19,828——19,828Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
14,957——14,957Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
10,170——10,170Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
7,975——7,975Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
1,842——1,842Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
48,931——48,931Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
63,054——63,054Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
41,588——41,588Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
3,795——3,795Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
53,919——53,919Jun 2, 2021Jun 4, 2021 ↗View →
OGN
ORGANON & CO.
PURCHASEGRANT
Stock grant
44,503——44,503Jun 2, 2021Jun 4, 2021 ↗View →
Other insiders · OGN
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About this filer
CIK 0001859810
ROLE
Head of Research & Development
PRIMARY
OGN
COMPANIES
3
ACTIVE SINCE
Jun 2021
MARKETPEEL · /INSIDER/0001859810DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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