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Neil W Gibson

CIK 1555918 · Chief Scientific Officer · last filed 2026-06-12

Neil W Gibson is a Chief Scientific Officer who has filed 37 SEC Form 4 insider transactions across 4 companies since 2012. The most recent filing, for TIL, was dated Jun 12, 2026. Across all open-market trades the lifetime net is −$2.4M, making them a net seller over the disclosed history.

"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

$0

Companies

4

Total Filings

37

Lifetime Open-Market Net

-$2.42M

Filer Profile

Reported Address
C/O REGULUS THERAPEUTICS INC.
3545 JOHN HOPKINS COURT SUITE 210
SAN DIEGO, CA 92121
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
TIL Director — $7.58 — $0 6 2026-06-12
STTK Director — $6.79 — $0 7 2026-06-02
TCR2 THERAPEUTICS INC. (TCRR) Delisted Director 493,791 $1.48 $730.8K -$525.2K 8 2023-06-01
Regulus Therapeutics Inc. (RGLS) Delisted Chief Scientific Officer 72 $8.16 $588 -$1.90M 16 2015-01-30

Recent Filings

37 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
2026-06-12 TIL Grant (A) — $0 EDGAR
2026-06-02 STTK Grant (A) — $0 EDGAR
2025-07-16 STTK Grant (A) — $0 EDGAR
2025-05-29 TIL Grant (A) — $0 EDGAR
2024-06-21 STTK Grant (A) — $0 EDGAR
2024-06-13 TIL Grant (A) — $0 EDGAR
2024-01-10 TIL Grant (A) — $0 EDGAR
2023-06-01 TCR2 THERAPEUTICS INC. (TCRR) Delisted Disp (D) — $0 EDGAR
2023-05-31 STTK Grant (A) — $0 EDGAR
2022-12-19 TCR2 THERAPEUTICS INC. (TCRR) Delisted Grant (A) — $0 EDGAR
Showing 1–10 of 37
Page 1 of 4
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.