Santiago Arroyo

CIK 1706857 · CHIEF DEVELOPMENT OFFICER · last filed 2025-01-06

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$279.7K

Companies

4

Total Filings

33

Lifetime Open-Market Net

-$7.90M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
BCYC CHIEF DEVELOPMENT OFFICER 69,057 $4.05 $279.7K -$69.6K 4 2025-01-06
FULC Chief Medical Officer $3.45 $0 1 2022-11-09
MARINUS PHARMACEUTICALS, INC. (MRNS) Delisted Director 2,750 $0.55 $1.5K $0 2 2022-02-07
MOMENTA PHARMACEUTICALS INC (MNTA) Delisted SVP, Chief Medical Officer 0 -$7.83M 26 2020-10-01

Recent Filings · Page 3 of 4

33 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-01-22 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Mixed +2,265 -$37.1K EDGAR
2019-11-08 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Sell (S) −26,954 -$428.8K EDGAR
2019-10-21 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Mixed +7,682 -$87.4K EDGAR
2019-05-01 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Sell (S) −2,531 -$38.0K EDGAR
2019-04-16 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Disp (D) −18,000 $0 EDGAR
2019-04-11 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Sell (S) −8,119 -$121.8K EDGAR
2019-02-19 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Sell (S) −2,671 -$35.0K EDGAR
2019-02-14 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Mixed +17,258 -$98.3K EDGAR
2019-02-13 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Grant (A) $0 EDGAR
2018-10-19 MOMENTA PHARMACEUTICALS INC (MNTA) Delisted Grant (A) $0 EDGAR
Showing 2130 of 33
Page 3 of 4
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.