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

← United States · Coverage record

US · SEC FORM 4

ISABELLA BANK CORP

ISBA · Nasdaq · CIK 0000842517 · Financial Services · Banks—Regional

INSIDER SIGNAL

43.2 / 100

1 buyers · 5 purchase transaction lines · $1.5K gross purchase

WHY THIS SIGNAL?

Buyer breadthLow
Purchase sizeLow
RoleStrong
RecencyModerate
ConvictionStrong
Score anatomy

Each bar shows the contribution to the current score; the weights and formula stay unchanged.

Cluster+7.0 / 35
Purchase size+0.3 / 25
Role+20.0 / 20
Recency+5.9 / 10
Conviction+10.0 / 10

What is holding the score back?

  • ⚠ Cluster breadth is moderate · 1 insider(s), not 4+
  • ⚠ Purchase size is modest relative to the model scale
  • ✓ Role scores high · most senior buyer: Director

Purchase-size comments are relative to the model scale. Average daily volume is a separate market-context diagnostic.

US-v1.2 ranks qualifying equity purchases under the current 180-day rules. The score is a research priority, not a return forecast or probability. Backtests have not shown that a higher US score is followed by better returns.

Insider activity timeline

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

AprMayJunJulAugSepOct
Bourland JillDirector
●○●●●○●
Rupp Vicki LDirector
○○
Opperman Sarah RDirector
○○
Coffin Melinda MarieDirector
○○
Barnes Jeffrey JDirector
○○
Tessin Brian BDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Bourland Jill · $1.5K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-18–2026-05-18

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

SIGNAL HISTORY

43.2 / 100

Latest recorded score

↓ -0.2 ptsversus the previous recorded snapshot
  1. 43.8
  2. 43.6
  3. 43.5
  4. 43.4
  5. 43.2

Only scores saved when a full US scoring run completed are shown; gaps are not reconstructed.

Recent Form 4 activity

22Purchases
0Sales
43Other Form 4 lines
61SEC filings · 365 days
BUYING5 qualifying P line(s) · 180 days
SELLING0 sale line(s) · context only
OTHER18 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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-4.2%
3M
-5.5%
6M
-23.4%
12M
+3.6%

Volatility & liquidity

Volatility
41.0%
Beta
—
Avg daily value
USD 2.1M

Valuation

Market cap
USD 284.5M
P/E
15.0×

Fundamentals

Profit margin
—
ROE
8.2%
Industry
Banks—Regional

Market data

Price data up to: 2026-10-11 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-08-06 · Status: PASS

Short interest

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

Shares short
313,739
Previous report
316,784
Avg daily volume
39,433
Days to cover
8.0

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
2026-09-16Bourland JillPurchase (P)common8USD 39.40USD 300SEC filing ↗
2026-08-17Bourland JillPurchase (P)common7USD 41.59USD 300SEC filing ↗
2026-07-16Bourland JillPurchase (P)common8USD 39.07USD 300SEC filing ↗
2026-06-16Bourland JillPurchase (P)common7USD 41.43USD 300SEC filing ↗
2026-05-18Bourland JillPurchase (P)common7USD 41.05USD 300SEC filing ↗
2026-04-16Bourland JillPurchase (P)common6USD 48.90USD 300SEC filing ↗
2026-03-16Bourland JillPurchase (P)common7USD 44.03USD 300SEC filing ↗
2026-03-02Schwind Jerome EPurchase (P)common396USD 31.47USD 12,462SEC filing ↗
2026-03-02McDonnell Neil MichaelPurchase (P)common55USD 31.47USD 1,731SEC filing ↗
2026-03-02Huenemann Michael KylePurchase (P)common61USD 31.47USD 1,920SEC filing ↗
2026-03-02Catlin Jon DPurchase (P)common103USD 31.47USD 3,241SEC filing ↗
2026-02-17Bourland JillPurchase (P)common6USD 51.30USD 300SEC filing ↗
2026-01-20Sackett Brian RoyPurchase (P)common403USD 49.58USD 20,000SEC filing ↗
2026-01-20Opperman Sarah RPurchase (P)common277USD 49.58USD 13,750SEC filing ↗
2026-01-20McDonnell Neil MichaelPurchase (P)common303USD 49.58USD 15,000SEC filing ↗

Form 4 evidence

65 transaction lines in the latest 365-day window; 756 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-16Bourland JillPurchase (P)common8USD 39.40USD 300SEC filing ↗
2026-09-01Tessin Brian BAward / grant (A)common8USD 38.55USD 308SEC filing ↗
2026-09-01Schwind Jerome EAward / grant (A)common123USD 38.55USD 4,742SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-16Bourland JillPurchase (P)common8USD 39.40USD 300SEC filing ↗
2026-09-01Tessin Brian BAward / grant (A)common8USD 38.55USD 308SEC filing ↗
2026-09-01Schwind Jerome EAward / grant (A)common123USD 38.55USD 4,742SEC filing ↗
2026-09-01Sackett Brian RoyAward / grant (A)common24USD 38.55USD 925SEC filing ↗
2026-09-01Rupp Vicki LAward / grant (A)common33USD 38.55USD 1,272SEC filing ↗
2026-09-01Opperman Sarah RAward / grant (A)common46USD 38.55USD 1,773SEC filing ↗
2026-09-01McDonnell Neil MichaelAward / grant (A)common3USD 38.55USD 116SEC filing ↗
2026-09-01Coffin Melinda MarieAward / grant (A)common31USD 38.55USD 1,195SEC filing ↗
2026-09-01Bourland JillAward / grant (A)common10USD 38.55USD 386SEC filing ↗
2026-09-01Barnes Jeffrey JAward / grant (A)common242USD 38.55USD 9,329SEC filing ↗
2026-08-17Bourland JillPurchase (P)common7USD 41.59USD 300SEC filing ↗
2026-07-16Bourland JillPurchase (P)common8USD 39.07USD 300SEC filing ↗
2026-06-16Bourland JillPurchase (P)common7USD 41.43USD 300SEC filing ↗
2026-06-01Tessin Brian BAward / grant (A)common7USD 41.49USD 290SEC filing ↗
2026-06-01Schwind Jerome EAward / grant (A)common113USD 41.49USD 4,688SEC filing ↗
2026-06-01Sackett Brian RoyAward / grant (A)common22USD 41.49USD 913SEC filing ↗
2026-06-01Rupp Vicki LAward / grant (A)common30USD 41.49USD 1,245SEC filing ↗
2026-06-01Opperman Sarah RAward / grant (A)common43USD 41.49USD 1,784SEC filing ↗
2026-06-01McDonnell Neil MichaelAward / grant (A)common3USD 41.49USD 124SEC filing ↗
2026-06-01Coffin Melinda MarieAward / grant (A)common30USD 41.49USD 1,245SEC filing ↗
2026-06-01Bourland JillAward / grant (A)common9USD 41.49USD 373SEC filing ↗
2026-06-01Barnes Jeffrey JAward / grant (A)common225USD 41.49USD 9,335SEC filing ↗
2026-05-18Bourland JillPurchase (P)common7USD 41.05USD 300SEC filing ↗
2026-04-16Bourland JillPurchase (P)common6USD 48.90USD 300SEC filing ↗
2026-03-16Bourland JillPurchase (P)common7USD 44.03USD 300SEC filing ↗
2026-03-02Tessin Brian BAward / grant (A)common826USD 48.54USD 40,094SEC filing ↗
2026-03-02Schwind Jerome EPurchase (P)common396USD 31.47USD 12,462SEC filing ↗
2026-03-02Schwind Jerome EAward / grant (A)common710USD 48.54USD 34,463SEC filing ↗
2026-03-02Sackett Brian RoyAward / grant (A)common18USD 48.54USD 874SEC filing ↗
2026-03-02Rupp Vicki LAward / grant (A)common251USD 48.54USD 12,184SEC 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 · —
TickerISBA
CIK0000842517
SectorFinancial Services
IndustryBanks—Regional Yahoo Finance
SEC SIC6022 State Commercial Banks
ExchangeNasdaq

Data coverage

Local Form 4 history756 transaction lines from 2020-01-02 to 2026-09-16
453 P purchase lines · 3 S sale lines · 300 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.