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Gregory Bailey

SER
DIRECTOR · SERINA THERAPEUTICS, INC. · CIK 0001329505
FILING MIX · LIFETIME57%/43%
BUYS
53
SELLS
40
TOTAL VALUE
$461.19M
COMPANIES
2
ACTIVE SINCE
Apr 2020
HOLDINGS NOW
68,693
AVG SELL PX
$109.59
TRADE KIND
SHOWING 93 / 93
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
23 backtested trades · 8 horizons · 12 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Gregory Bailey, 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
7d23+69.57%+8.42%+0.57%+7.85%+4.77%—
14d23+78.26%+7.06%+0.86%+6.19%+4.09%—
30d23+52.17%+4.59%+2.89%+1.70%-2.94%—
60d23+43.48%+2.40%+4.81%-2.41%-5.37%—
90d23+21.74%-7.38%+5.97%-13.36%-22.77%—
180d23+26.09%-15.47%+10.22%-25.69%-41.77%—
1y23(1 pending)+9.09%-24.10%+15.03%-39.13%-50.75%—
2y23(11 pending)+8.33%-47.32%+46.10%-82.16%-117.58%—
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
SER · 0 shares · as of Jun 17, 2026
02,141,0964,282,1916,423,2878,564,38220252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
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 · 53 buys / 40 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SER
SERINA THERAPEUTICS, INC.
SALE
762,548$2.25$1.72M0Jun 17, 2026Jun 22, 2026 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
6,666,667$2.25$15.00M8,564,382Jun 17, 2026Jun 22, 2026 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
15,250——15,250Jun 17, 2026Jun 22, 2026 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
3,333,333——3,333,333Jun 17, 2026Jun 22, 2026 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
1,770,805$2.25$3.98M1,897,445Jun 17, 2026Jun 22, 2026 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
68,693——68,693Apr 28, 2026Apr 30, 2026 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
59,667$1.94$115.8K126,910Mar 31, 2026Apr 21, 2026 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
400,000$7.50$3.00M2,020,071Nov 13, 2025Nov 17, 2025 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
10,000——10,000Nov 7, 2025Nov 7, 2025 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
31,716——31,716May 5, 2025May 7, 2025 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
762,548$5.18$3.95M762,548Apr 8, 2025Apr 10, 2025 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
3,866$4.59$17.7K67,243Dec 17, 2024Dec 17, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
5,000$44.19$221.0K1,620,071Sep 24, 2024Sep 25, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
1,137$6.03$6.9K63,377Sep 20, 2024Sep 24, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
11,679$6.11$71.4K62,240Sep 19, 2024Sep 20, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
2,709$6.23$16.9K50,561Sep 18, 2024Sep 20, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
1,776$8.25$14.7K47,582Aug 20, 2024Aug 22, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
6,400$7.93$50.8K45,806Aug 19, 2024Aug 20, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
6,400$7.31$46.8K39,406Aug 16, 2024Aug 20, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
6,400$6.65$42.6K33,006Aug 15, 2024Aug 20, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
6,400$7.07$45.2K26,606Aug 14, 2024Aug 16, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
5,205$9.50$49.4K20,206May 30, 2024May 31, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
1,173$9.50$11.1K15,001May 29, 2024May 31, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
9,019$9.50$85.7K13,828May 28, 2024May 29, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
2,371$9.50$22.5K4,809May 23, 2024May 24, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
1,422$9.50$13.5K1,522May 21, 2024May 23, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
916$9.50$8.7K2,438May 21, 2024May 24, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASE
100$9.00$900100May 20, 2024May 22, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
15,000$34.19$512.9K1,615,071May 13, 2024May 15, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
16,592——16,592Apr 30, 2024May 2, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
25,503$39.18$999.2K1,600,071Apr 24, 2024Apr 25, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
48,780$41.00$2.00M1,574,568Apr 22, 2024Apr 22, 2024 ↗View →
SER
SERINA THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
40,000——44,691Apr 1, 2024Apr 4, 2024 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
17,817$22.57$402.1K1,525,788Oct 4, 2023Oct 6, 2023 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
52,906——52,906May 2, 2023May 4, 2023 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
200,000$10.50$2.10M1,507,971Oct 25, 2022Oct 26, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
5,998——5,998Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
9,000$3.06$27.5K1,319,946Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
9,000$2.33$21.0K1,310,946Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
5,998——0Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
5,998$3.56$21.4K1,301,946Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
4,119——0Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
4,119——4,119Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
11,975$7.50$89.8K1,307,971Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
125,000——125,000Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
1,291,829——1,291,829Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
9,000——0Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
4,119$4.84$19.9K1,295,948Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
9,000——9,000Oct 3, 2022Oct 5, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
2,583,658$148.50$383.67M0Oct 3, 2022Oct 3, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
18,000——0Oct 3, 2022Oct 3, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
8,239——0Oct 3, 2022Oct 3, 2022 ↗View →
BHVN
BIOHAVEN LTD.
SALE
11,996——0Oct 3, 2022Oct 3, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
38,000$148.04$5.63M2,583,658Aug 19, 2022Aug 22, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
8,239——8,239Apr 28, 2022Apr 29, 2022 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
11,996——11,996May 5, 2021May 6, 2021 ↗View →
BHVN
BIOHAVEN LTD.
SALE
10,191$78.89$803.9K2,545,870Oct 23, 2020Oct 23, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
212$79.94$16.9K2,545,658Oct 23, 2020Oct 23, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
21,466$79.41$1.70M2,559,161Oct 22, 2020Oct 23, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
3,100$79.88$247.6K2,556,061Oct 22, 2020Oct 23, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
4,554$78.98$359.7K2,580,627Oct 19, 2020Oct 20, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
3,748$78.88$295.6K2,585,181Oct 16, 2020Oct 20, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
6,729$78.87$530.7K2,588,929Oct 12, 2020Oct 14, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
44,009$75.12$3.31M2,601,649Jul 8, 2020Jul 10, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
5,991$75.93$454.9K2,595,658Jul 8, 2020Jul 10, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
2,395$70.24$168.2K2,645,658Jun 24, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
1,600$69.29$110.9K2,648,053Jun 24, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
13,467$72.70$979.0K2,737,829Jun 23, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
63,257$74.60$4.72M2,650,488Jun 23, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
24,084$73.72$1.78M2,713,745Jun 23, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
835$75.18$62.8K2,649,653Jun 23, 2020Jun 25, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
20,659$72.91$1.51M2,800,428Jun 22, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
10,540$72.01$759.0K2,821,087Jun 22, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
49,132$73.64$3.62M2,751,296Jun 22, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
26,814$70.10$1.88M2,946,832Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
21,798$71.98$1.57M2,866,796Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
12,157$72.93$886.6K2,854,639Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
22,012$69.01$1.52M2,973,646Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
22,584$73.78$1.67M2,832,055Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
428$75.22$32.2K2,831,627Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
58,238$70.91$4.13M2,888,594Jun 19, 2020Jun 22, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
30,143$68.15$2.05M2,995,658Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
37,700——0Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
20,000——0Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
150,000——0Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
212,500$0.61$129.6K2,800,101Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
18,000——0Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
150,000$5.60$840.0K2,950,101Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
SALE
212,500——0Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
37,700$9.29$350.2K2,987,801Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
18,000$28.76$517.7K3,025,801Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASE
20,000$10.82$216.4K3,007,801Jun 5, 2020Jun 8, 2020 ↗View →
BHVN
BIOHAVEN LTD.
PURCHASEGRANT
Stock grant
18,000——18,000Apr 30, 2020May 1, 2020 ↗View →
Other insiders · SER
Loading peer insiders…
About this filer
CIK 0001329505
ROLE
Director
PRIMARY
SER
COMPANIES
2
ACTIVE SINCE
Apr 2020
MARKETPEEL · /INSIDER/0001329505DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

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