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Kirk G. Nielsen

CIK 1523522 · last filed 2026-06-03

Kirk G. Nielsen is a corporate insider who has filed 30 SEC Form 4 insider transactions across 3 companies since 2020. The most recent filing, for CVRX, was dated Jun 3, 2026. Across all open-market trades the lifetime net is +$5.3M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $87.3M 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

$87.26M

Companies

3

Total Filings

30

Lifetime Open-Market Net

$5.33M

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
CVRX Director 1,918,854 $2.60 $4.99M $2.71M 16 2026-06-03
SGP Director 3,310,619 $24.85 $82.27M $2.64M 3 2026-02-11
Inari Medical, Inc. (NARI) Delisted Director 61,479 $79.97 $4.92M -$24.7K 11 2023-05-30

Recent Filings

30 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
2026-06-03 CVRX Grant (A) +8,720 $0 EDGAR
2026-02-11 SGP Conv (C) — $0 EDGAR
2026-02-10 SGP Mixed +3,310,619 $2.64M EDGAR
2026-02-09 SGP Grant (A) — $0 EDGAR
2025-06-05 CVRX Grant (A) — $0 EDGAR
2025-05-19 CVRX Buy (P) +10,966 $59.8K EDGAR
2025-05-14 CVRX Buy (P) +187,813 $977.3K EDGAR
2024-06-07 CVRX Grant (A) — $0 EDGAR
2024-06-06 CVRX Grant (A) — $0 EDGAR
2023-06-07 CVRX Grant (A) — $0 EDGAR
Showing 1–10 of 30
Page 1 of 3
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.