ROBERT J PEREZ

CIK 1263230 · Chief Executive Officer · last filed 2026-06-10

"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

$136.6K

Companies

12

Total Filings

111

Lifetime Open-Market Net

-$15.17M

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
RAPP Director $40.94 $0 3 2026-06-10
VIR Director 15,806 $8.64 $136.6K $0 5 2023-05-24
Third Harmonic Bio, Inc. (THRD) Delisted Director $5.38 $0 2 2023-03-08
Spark Therapeutics, Inc. (ONCE) Delisted Director 0 $0 5 2019-12-17
Larimar Therapeutics, Inc. (ZFGN) Delisted Director 908 $0 10 2019-06-27
Cogent Biosciences, Inc. (UMRX) Delisted Director $0 5 2019-06-18
AMAG PHARMACEUTICALS, INC. (AMAG) Delisted Director 33,629 $0 12 2019-05-20
Salarius Pharmaceuticals, Inc. (FLKS) Delisted Director $0 3 2017-07-27
Cidara Therapeutics, Inc. (CDTX) Delisted Director 250 $221.38 $55.3K $80.0K 4 2017-06-26
CUBIST PHARMACEUTICALS INC (CBST.Z) Delisted Chief Executive Officer 0 -$6.98M 10 2015-01-21
CUBIST PHARMACEUTICALS INC (CBST) Delisted President & COO 43,359 -$8.27M 48 2013-08-16
EPIX Pharmaceuticals, Inc. (EPIX) Delisted Director $0.20 $0 2 2008-05-21

Recent Filings · Page 11 of 12

111 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2008-04-02 CUBIST PHARMACEUTICALS INC (CBST) Delisted Other (J) +489 $9.0K EDGAR
2008-02-19 CUBIST PHARMACEUTICALS INC (CBST) Delisted Grant (A) $0 EDGAR
2008-01-07 CUBIST PHARMACEUTICALS INC (CBST) Delisted Other (J) +502 $8.6K EDGAR
2007-10-02 CUBIST PHARMACEUTICALS INC (CBST) Delisted Other (J) +77 $1.6K EDGAR
2007-09-18 CUBIST PHARMACEUTICALS INC (CBST) Delisted Grant (A) $0 EDGAR
2007-08-24 CUBIST PHARMACEUTICALS INC (CBST) Delisted Grant (A) $0 EDGAR
2007-07-03 CUBIST PHARMACEUTICALS INC (CBST) Delisted Other (J) +996 $15.2K EDGAR
2007-07-02 EPIX Pharmaceuticals, Inc. (EPIX) Delisted Grant (A) $0 EDGAR
2007-04-03 CUBIST PHARMACEUTICALS INC (CBST) Delisted Other (J) +268 $5.9K EDGAR
2007-02-16 CUBIST PHARMACEUTICALS INC (CBST) Delisted Grant (A) $0 EDGAR
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Page 11 of 12
Form 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.