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

Solid Power, Inc.

SLDP · Nasdaq · CIK 0001844862 · Consumer Cyclical · Auto Parts

INSIDER SIGNAL

No active buy signal

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

20 Form 4 transaction lines observed in the same window
1 sales · 19 option, withholding, award, gift or other lines

Last qualifying purchase2023-03-10 · STEPHENS JOHN JOSEPH · $626.3K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
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
Buettner-Garrett JoshuaChief Technology Officer
○○○○
Van Scoter John C.President & CEO
○○○
Heller Linda C.CFO, Treasurer, & Secretary
○○○
Roe Lesa BDirector
○▼
Goldberg Steven HDirector
○○
Wright MaryAnnDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 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: 2023-03-10 · STEPHENS JOHN JOSEPH.

Recent Form 4 activity

0Purchases
2Sales
25Other Form 4 lines
26SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER19 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
28,242,493
Previous report
27,816,344
Avg daily volume
3,168,584
Days to cover
8.9

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
2023-03-10STEPHENS JOHN JOSEPHPurchase (P)Common Stock214,500USD 2.92USD 626,340SEC filing ↗
2022-08-30STEPHENS JOHN JOSEPHPurchase (P)Common Stock30,000USD 6.80USD 204,000SEC filing ↗
2022-08-23STEPHENS JOHN JOSEPHPurchase (P)Common Stock25,000USD 6.54USD 163,500SEC filing ↗
2022-08-18STEPHENS JOHN JOSEPHPurchase (P)Common Stock17,289USD 7.14USD 123,443SEC filing ↗
2022-08-17STEPHENS JOHN JOSEPHPurchase (P)Common Stock13,216USD 6.91USD 91,323SEC filing ↗

Form 4 evidence

27 transaction lines in the latest 365-day window; 206 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Van Scoter John C.Tax withholding (F)Common Stock154,512USD 2.27USD 350,742SEC filing ↗
2026-09-30Heller Linda C.Tax withholding (F)Common Stock72,310USD 2.27USD 164,144SEC filing ↗
2026-09-30Buettner-Garrett JoshuaTax withholding (F)Common Stock33,824USD 2.27USD 76,780SEC filing ↗
Show recent Form 4 evidence (27 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-30Van Scoter John C.Tax withholding (F)Common Stock154,512USD 2.27USD 350,742SEC filing ↗
2026-09-30Heller Linda C.Tax withholding (F)Common Stock72,310USD 2.27USD 164,144SEC filing ↗
2026-09-30Buettner-Garrett JoshuaTax withholding (F)Common Stock33,824USD 2.27USD 76,780SEC filing ↗
2026-06-30Van Scoter John C.Tax withholding (F)Common Stock154,512USD 2.60USD 401,731SEC filing ↗
2026-06-30Heller Linda C.Tax withholding (F)Common Stock72,310USD 2.60USD 188,006SEC filing ↗
2026-06-30Buettner-Garrett JoshuaTax withholding (F)Common Stock33,824USD 2.60USD 87,942SEC filing ↗
2026-05-20Wright MaryAnnAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20STEPHENS JOHN JOSEPHAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Roe Lesa BSale (S)Common Stock39,207USD 2.66USD 104,291SEC filing ↗
2026-05-20Roe Lesa BAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Miziolek Aleksandra AAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Kreh Susan MAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Goldberg Steven HAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Goldberg Steven HAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20Awada KaledAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-20ANDERSON ERIK JAward / grant (A)Common Stock44,133USD 0.00USD 0SEC filing ↗
2026-05-12Buettner-Garrett JoshuaTax withholding (F)Common Stock5,519USD 3.15USD 17,385SEC filing ↗
2026-05-11Van Scoter John C.Tax withholding (F)Common Stock308,010USD 3.08USD 948,671SEC filing ↗
2026-05-11Heller Linda C.Tax withholding (F)Common Stock136,122USD 3.08USD 419,256SEC filing ↗
2026-05-11Buettner-Garrett JoshuaTax withholding (F)Common Stock58,082USD 3.08USD 178,893SEC filing ↗
2026-04-01Van Scoter John C.Award / grant (A)Common Stock1,267,828USD 0.00USD 0SEC filing ↗
2026-04-01Heller Linda C.Award / grant (A)Common Stock380,348USD 0.00USD 0SEC filing ↗
2026-04-01Buettner-Garrett JoshuaAward / grant (A)Common Stock183,518USD 0.00USD 0SEC filing ↗
2025-12-31Van Scoter John C.Tax withholding (F)Common Stock42,842USD 4.28USD 183,364SEC filing ↗
2025-12-31Heller Linda C.Tax withholding (F)Common Stock26,605USD 4.28USD 113,869SEC filing ↗
2025-12-31Buettner-Garrett JoshuaTax withholding (F)Common Stock14,284USD 4.28USD 61,136SEC filing ↗
2025-12-04ANDERSON ERIK JSale (S)Common Stock30,000USD 5.20USD 156,000SEC 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 · —
TickerSLDP
CIK0001844862
SectorConsumer Cyclical
IndustryAuto Parts Yahoo Finance
SEC SIC3690 Miscellaneous Electrical Machinery, Equipment & Supplies
ExchangeNasdaq

Data coverage

Local Form 4 history206 transaction lines from 2021-10-25 to 2026-09-30
5 P purchase lines · 43 S sale lines · 158 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.