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KIRK K CALHOUN

CIK 1203721 · last filed 2026-07-27

KIRK K CALHOUN is a corporate insider who has filed 46 SEC Form 4 insider transactions across 7 companies since 2007. The most recent filing, for RYZ, was dated Jul 27, 2026. Across all open-market trades the lifetime net is +$20.5K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $126.0K 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

$126.0K

Companies

7

Total Filings

46

Lifetime Open-Market Net

$20.5K

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
RYZ Director 4,673 $26.97 $126.0K $0 2 2026-07-27
Ryerson Holding Corp (RYI) Delisted Director 4,187 $28.16 $117.9K $5.5K 11 2026-01-06
NantHealth, Inc. (NH) Delisted Director 9,919 $1.35 $13.4K $0 6 2022-06-10
PLx Pharma Inc. (PLXP) Delisted Director 1,675 $0.09 $146 $0 5 2022-02-24
RESPONSE GENETICS INC (RGDX) Delisted Director 14,312 — — $15.0K 10 2014-07-11
Cardiovascular Systems Inc (RDYN) Delisted Director — — — $0 2 2008-05-09
Adams Respiratory Therapeutics, Inc. (ARXT) Delisted Director 0 — — $0 7 2008-01-30

Recent Filings

46 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
2026-07-27 RYZ Grant (A) +97 $0 EDGAR
2026-04-13 RYZ Grant (A) +389 $0 EDGAR
2026-01-06 Ryerson Holding Corp (RYI) Delisted Grant (A) +347 $0 EDGAR
2025-10-02 Ryerson Holding Corp (RYI) Delisted Grant (A) +382 $0 EDGAR
2025-07-02 Ryerson Holding Corp (RYI) Delisted Grant (A) +405 $0 EDGAR
2025-04-03 Ryerson Holding Corp (RYI) Delisted Grant (A) +381 $0 EDGAR
2025-01-03 Ryerson Holding Corp (RYI) Delisted Grant (A) +472 $0 EDGAR
2024-10-01 Ryerson Holding Corp (RYI) Delisted Grant (A) +439 $0 EDGAR
2024-07-02 Ryerson Holding Corp (RYI) Delisted Grant (A) +448 $0 EDGAR
2024-04-02 Ryerson Holding Corp (RYI) Delisted Grant (A) +261 $0 EDGAR
Showing 1–10 of 46
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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.