Insider transactions

William H Rastetter

CIK 1205903 · last filed 2026-10-19

"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.

Loading insider history…
Disclosed Exposure
$34.21M
Companies
8
Total Filings
132
Lifetime Open-Market Net
-$35.80M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

RCPT price and trades

Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.

Shares held

Shares owned after each reported transaction on this company (direct holdings as reported).

Open-market buying and selling

by month

Dollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.

Exposure by company

latest
OfficerDirector10% owner* stale (no filing in 3 yrs)

Most recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.

Filer Profile

Reported Address
9885 TOWNE CENTRE DR.
SAN DIEGO, CA 92121
Related Filers
NEUROCRINE BIOSCIENCES INC — 34 joint filings, latest 2026-05-29
ILLUMINA, INC. — 32 joint filings, latest 2016-01-04
BIOGEN INC. — 10 joint filings, latest 2005-07-01
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
IAM Director 192,579 — — $0 2 2026-10-19
DARE Director 39,721 $0.65 $25.9K $0 12 2026-07-02
FATE Director 495,603 $2.06 $1.02M $1.50M 17 2026-06-15
NBIX Director 43,678 $144.94 $6.33M -$13.07M 27 2026-05-29
Regulus Therapeutics Inc. (RGLS) Delisted Director 57,292 $8.16 $467.5K $1.65M 26 2025-06-27
Dare Bioscience, Inc. (CERU) Delisted Director 10,304 — — $0 4 2017-01-05
ILMN Director 95,174 $281.87 $26.83M -$9.29M 31 2016-01-04
Receptos, Inc. (RCPT) Delisted Director 0 — — -$16.60M 8 2015-08-27

Recent Filings · Page 6 of 14

132 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
2019-12-26 Regulus Therapeutics Inc. (RGLS) Delisted Grant (A) — $0 EDGAR
2019-10-15 Regulus Therapeutics Inc. (RGLS) Delisted Grant (A) — $0 EDGAR
2019-06-14 DARE Grant (A) — $0 EDGAR
2019-05-23 NBIX Grant (A) — $0 EDGAR
2019-05-21 Regulus Therapeutics Inc. (RGLS) Delisted Grant (A) +92,889 $100.3K EDGAR
2019-05-08 Regulus Therapeutics Inc. (RGLS) Delisted Buy (P) +92,889 $100.3K EDGAR
2019-05-07 FATE Grant (A) — $0 EDGAR
2018-11-13 Regulus Therapeutics Inc. (RGLS) Delisted Mixed +23,258 $0 EDGAR
2018-07-11 DARE Grant (A) — $0 EDGAR
2018-06-05 Regulus Therapeutics Inc. (RGLS) Delisted Grant (A) — $0 EDGAR
Showing 51–60 of 132
Page 6 of 14
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.