Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

GRAHAM CORP

GHM · NYSE · CIK 0000716314 · Industrials · Specialty Industrial Machinery

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

33 Form 4 transaction lines observed in the same window
0 sales · 33 option, withholding, award, gift or other lines

Last qualifying purchase2025-09-12 · Gregorio Mauro · $58.8K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Thoren Daniel J.Executive Chairman
○○○○○○○○
Thome Christopher J.VP-Finance; CFO
○○○○○○○○
Malone MatthewPresident and CEO
○○○○○○○○
Dixon Michael E.VP & GM of Barber-Nichols
○○
Gregorio MauroDirector
○○
Stoner Troy A.Director
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-09-12 · Gregorio Mauro.

Recent Form 4 activity

0Purchases
0Sales
35Other Form 4 lines
21SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER33 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
953,013
Previous report
902,114
Avg daily volume
179,571
Days to cover
5.3

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2025-09-12Gregorio MauroPurchase (P)Common Stock1,200USD 49.01USD 58,812SEC filing ↗
2025-09-12Gregorio MauroPurchase (P)Common Stock1,200USD 49.01USD 58,812SEC filing ↗
2023-02-21Smith Alan EPurchase (P)Common Stock4,000USD 13.53USD 54,120SEC filing ↗
2022-08-04Thoren Daniel J.Purchase (P)Common Stock7,500USD 7.83USD 58,725SEC filing ↗
2022-08-02Thoren Daniel J.Purchase (P)Common Stock5,000USD 7.20USD 36,000SEC filing ↗
2022-02-22Thoren Daniel J.Purchase (P)Common Stock12,500USD 7.90USD 98,750SEC filing ↗
2022-02-11Barber James JPurchase (P)Common Stock6,600USD 9.20USD 60,720SEC filing ↗
2022-02-10Smith Alan EPurchase (P)Common Stock8,000USD 9.10USD 72,800SEC filing ↗
2022-02-10PAINTER JONATHAN WPurchase (P)Common Stock2,500USD 9.08USD 22,700SEC filing ↗
2022-02-10Fortier AlanPurchase (P)Common Stock6,000USD 9.19USD 55,140SEC filing ↗
2022-02-10Schnorr Lisa M.Purchase (P)Common Stock5,000USD 9.10USD 45,500SEC filing ↗
2021-09-10Barber James JPurchase (P)Common Stock100USD 12.35USD 1,235SEC filing ↗
2021-09-09Barber James JPurchase (P)Common Stock4,396USD 12.49USD 54,906SEC filing ↗
2021-09-08Barber James JPurchase (P)Common Stock504USD 12.60USD 6,350SEC filing ↗
2020-06-12Schnorr Lisa M.Purchase (P)Common Stock811USD 12.31USD 9,983SEC filing ↗

Form 4 evidence

35 transaction lines in the latest 365-day window; 234 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-18Gregorio MauroGift (G)Common Stock936USD 0.00USD 0SEC filing ↗
2026-09-02Gregorio MauroOption exercise / conversion (M)Common Stock936USD 0.00USD 0SEC filing ↗
2026-06-08Thoren Daniel J.Tax withholding (F)Common Stock8,095USD 95.34USD 771,777SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-18Gregorio MauroGift (G)Common Stock936USD 0.00USD 0SEC filing ↗
2026-09-02Gregorio MauroOption exercise / conversion (M)Common Stock936USD 0.00USD 0SEC filing ↗
2026-06-08Thoren Daniel J.Tax withholding (F)Common Stock8,095USD 95.34USD 771,777SEC filing ↗
2026-06-08Thoren Daniel J.Award / grant (A)Common Stock22,101USD 0.00USD 0SEC filing ↗
2026-06-08Thome Christopher J.Tax withholding (F)Common Stock3,193USD 95.34USD 304,421SEC filing ↗
2026-06-08Thome Christopher J.Award / grant (A)Common Stock8,619USD 0.00USD 0SEC filing ↗
2026-06-08Malone MatthewTax withholding (F)Common Stock2,477USD 95.34USD 236,157SEC filing ↗
2026-06-08Malone MatthewAward / grant (A)Common Stock8,619USD 0.00USD 0SEC filing ↗
2026-06-04Thoren Daniel J.Option exercise / conversion (M)Common Stock5,543USD 0.00USD 0SEC filing ↗
2026-06-04Thoren Daniel J.Tax withholding (F)Common Stock1,593USD 107.96USD 171,980SEC filing ↗
2026-06-04Thome Christopher J.Option exercise / conversion (M)Common Stock1,643USD 0.00USD 0SEC filing ↗
2026-06-04Thome Christopher J.Tax withholding (F)Common Stock608USD 107.96USD 65,640SEC filing ↗
2026-06-04Malone MatthewOption exercise / conversion (M)Common Stock1,291USD 0.00USD 0SEC filing ↗
2026-06-04Malone MatthewTax withholding (F)Common Stock371USD 107.96USD 40,053SEC filing ↗
2026-06-02Thoren Daniel J.Option exercise / conversion (M)Common Stock529USD 0.00USD 0SEC filing ↗
2026-06-02Thoren Daniel J.Tax withholding (F)Common Stock152USD 106.11USD 16,129SEC filing ↗
2026-06-02Thome Christopher J.Option exercise / conversion (M)Common Stock1,099USD 0.00USD 0SEC filing ↗
2026-06-02Thome Christopher J.Tax withholding (F)Common Stock407USD 106.11USD 43,187SEC filing ↗
2026-06-02Stoner Troy A.Option exercise / conversion (M)Common Stock1,956USD 0.00USD 0SEC filing ↗
2026-06-02Schnorr Lisa M.Option exercise / conversion (M)Common Stock1,956USD 0.00USD 0SEC filing ↗
2026-06-02Painter Jonathan WOption exercise / conversion (M)Common Stock1,956USD 0.00USD 0SEC filing ↗
2026-06-02Malone MatthewOption exercise / conversion (M)Common Stock2,540USD 0.00USD 0SEC filing ↗
2026-06-02Malone MatthewTax withholding (F)Common Stock730USD 106.11USD 77,460SEC filing ↗
2026-06-02Jaroslawsky Cari LOption exercise / conversion (M)Common Stock1,956USD 0.00USD 0SEC filing ↗
2026-06-02Dixon Michael E.Option exercise / conversion (M)Common Stock762USD 0.00USD 0SEC filing ↗
2026-06-02Dixon Michael E.Tax withholding (F)Common Stock235USD 106.11USD 24,936SEC filing ↗
2026-06-02Barber James JOption exercise / conversion (M)Common Stock1,956USD 0.00USD 0SEC filing ↗
2026-05-17Thoren Daniel J.Option exercise / conversion (M)Common Stock6,089USD 0.00USD 0SEC filing ↗
2026-05-17Thoren Daniel J.Tax withholding (F)Common Stock1,800USD 98.28USD 176,904SEC filing ↗
2026-05-17Thome Christopher J.Option exercise / conversion (M)Common Stock2,375USD 0.00USD 0SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerGHM
CIK0000716314
SectorIndustrials
IndustrySpecialty Industrial Machinery Yahoo Finance
SEC SIC3560 General Industrial Machinery & Equipment
ExchangeNYSE

Data coverage

Local Form 4 history234 transaction lines from 2020-01-31 to 2026-09-18
26 P purchase lines · 7 S sale lines · 201 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.