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Weston Nichols

CIK 1746376 · last filed 2026-06-22

Weston Nichols is a corporate insider who has filed 11 SEC Form 4 insider transactions across 3 companies since 2019. The most recent filing, for CRNX, was dated Jun 22, 2026. Across all open-market trades the lifetime net is +$174.2K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $24.1M across reported positions.

"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

$24.14M

Companies

3

Total Filings

11

Lifetime Open-Market Net

$174.2K

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
CRNX Director 22,225 $83.85 $1.86M $0 8 2026-06-22
KRRO 10%+ Owner 1,538,296 $10.46 $16.09M $11.0K 1 2026-04-02
TCRX 10%+ Owner 8,019,148 $0.77 $6.19M $163.1K 2 2025-12-23

Recent Filings

11 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
2026-06-22 CRNX Grant (A) +5,925 $0 EDGAR
2026-04-02 KRRO Buy (P) +1,040 $11.0K EDGAR
2025-12-23 TCRX Buy (P) +323,602 $291.1K EDGAR
2025-06-13 CRNX Grant (A) +6,900 $0 EDGAR
2024-06-11 CRNX Grant (A) +3,400 $0 EDGAR
2023-06-21 CRNX Grant (A) +6,000 $0 EDGAR
2023-06-02 TCRX Sell (S) −50,800 -$127.9K EDGAR
2022-06-21 CRNX Grant (A) — $0 EDGAR
2021-06-23 CRNX Grant (A) — $0 EDGAR
2020-06-22 CRNX Grant (A) — $0 EDGAR
Showing 1–10 of 11
Page 1 of 2
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.