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Katherine Carolyn Harper

CIK 1587482 · Director · last filed 2026-08-21

Katherine Carolyn Harper is a Director who has filed 20 SEC Form 4 insider transactions across 6 companies since 2014. The most recent filing, for MOD, was dated Aug 21, 2026. Across all open-market trades the lifetime net is +$135.2K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.8M 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

$3.79M

Companies

6

Total Filings

20

Lifetime Open-Market Net

$135.2K

Filer Profile

Reported Address
1500 DEKOVEN AVE.
RACINE, WI 53403
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
MOD Director 17,390 $189.30 $3.29M $0 1 2026-08-21
MODINE MANUFACTURING CO (MODI) Delisted Director 16,578 — — $0 4 2025-08-25
LYDALL INC /DE/ (LDL) Delisted Director 773 $62.09 $48.0K $0 1 2021-04-22
AgroFresh Solutions, Inc. (AGFSW) Delisted Chief Financial Officer 38,650 — — $25.6K 4 2018-07-26
AgroFresh Solutions, Inc. (AGFS.W) Delisted Chief Financial Officer 74,488 — — $0 1 2016-10-05
TROX SVP, Chief Financial Officer 112,920 $4.42 $499.1K $109.6K 8 2016-10-03

Recent Filings

20 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
2026-08-21 MOD Grant (A) +812 $0 EDGAR
2025-08-25 MODINE MANUFACTURING CO (MODI) Delisted Grant (A) +1,149 $0 EDGAR
2024-08-19 MODINE MANUFACTURING CO (MODI) Delisted Grant (A) +1,320 $0 EDGAR
2023-08-21 MODINE MANUFACTURING CO (MODI) Delisted Grant (A) +3,427 $0 EDGAR
2022-07-25 MODINE MANUFACTURING CO (MODI) Delisted Grant (A) +10,682 $0 EDGAR
2021-10-05 — Disp (D) −773 $0
2021-04-22 LYDALL INC /DE/ (LDL) Delisted Grant (A) +773 $24.0K EDGAR
2018-07-26 AgroFresh Solutions, Inc. (AGFSW) Delisted Grant (A) +7,750 $0 EDGAR
2018-04-30 AgroFresh Solutions, Inc. (AGFSW) Delisted Grant (A) +27,950 $0 EDGAR
2017-04-04 AgroFresh Solutions, Inc. (AGFSW) Delisted Grant (A) +38,650 $0 EDGAR
Showing 1–10 of 20
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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.