Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

Fluence Energy, Inc.

FLNC · Nasdaq · CIK 0001868941 · Utilities · Utilities—Renewable

INSIDER SIGNAL

No active buy signal

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

15 Form 4 transaction lines observed in the same window
8 sales · 5 option, withholding, award, gift or other lines

Last qualifying purchase2026-09-21 · BULLS HERMAN E · $73.6K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying2 qualifying line group(s)
Recent salesModerate
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.

Purchase breadth & concentration

QUALIFYING BUYERS2
PURCHASE CONCENTRATION59%Largest buyer: BULLS HERMAN E · $73.6K
CLUSTER BUYING · 15D2 insidersPeak activity: 2026-09-21–2026-09-21

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

Insider activity timeline

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

AprMayJunJulAugSepOct
Zahurancik JohnSVP & CCSO
▼▼▼▼
von Heynitz HaraldDirector
▼●
AES CORP; AES Grid Stability, LLCTenPercentOwner
○▼
Williams Peter BennettSVP and CPSCO
○○
Fessenden Elizabeth AnneDirector
○
Qatar Investment AuthorityTenPercentOwner
▼
● Purchase▼ Sale○ Other

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

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: 2026-09-21 · BULLS HERMAN E.

Recent Form 4 activity

2Purchases
9Sales
33Other Form 4 lines
27SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING8 sale line(s) · context only
OTHER5 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
33,822,574
Previous report
27,877,537
Avg daily volume
10,957,419
Days to cover
3.1

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
2026-09-21von Heynitz HaraldPurchase (P)Class A Common Stock7,000USD 7.36USD 51,520SEC filing ↗
2026-09-21BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 7.36USD 73,600SEC filing ↗
2025-05-12Arnold Cynthia APurchase (P)Class A Common Stock33,000USD 5.90USD 194,700SEC filing ↗
2025-03-14Nebreda JulianPurchase (P)Class A Common Stock9,450USD 5.26USD 49,707SEC filing ↗
2025-03-05BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 5.41USD 54,100SEC filing ↗
2025-02-18von Heynitz HaraldPurchase (P)Class A Common Stock7,000USD 6.99USD 48,930SEC filing ↗
2025-02-14Pasha AhmedPurchase (P)Class A Common Stock15,500USD 6.48USD 100,440SEC filing ↗
2025-02-14Fessenden Elizabeth AnnePurchase (P)Class A Common Stock1,700USD 6.43USD 10,931SEC filing ↗
2025-02-13Nebreda JulianPurchase (P)Class A Common Stock23,500USD 6.35USD 149,225SEC filing ↗
2025-02-13BULLS HERMAN EPurchase (P)Class A Common Stock30,000USD 6.53USD 195,900SEC filing ↗
2025-02-13Arnold Cynthia APurchase (P)Class A Common Stock10,000USD 6.56USD 65,600SEC filing ↗
2024-12-23BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 15.57USD 155,700SEC filing ↗
2024-08-13BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 16.81USD 168,100SEC filing ↗
2024-03-04Pasha AhmedPurchase (P)Class A Common Stock3,300USD 15.20USD 50,160SEC filing ↗
2024-03-04Nebreda JulianPurchase (P)Class A Common Stock6,700USD 14.77USD 98,959SEC filing ↗

Form 4 evidence

44 transaction lines in the latest 365-day window; 156 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-21von Heynitz HaraldPurchase (P)Class A Common Stock7,000USD 7.36USD 51,520SEC filing ↗
2026-09-21BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 7.36USD 73,600SEC filing ↗
2026-07-17Williams Peter BennettOption exercise / conversion (M)Class A Common Stock8,588USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-21von Heynitz HaraldPurchase (P)Class A Common Stock7,000USD 7.36USD 51,520SEC filing ↗
2026-09-21BULLS HERMAN EPurchase (P)Class A Common Stock10,000USD 7.36USD 73,600SEC filing ↗
2026-07-17Williams Peter BennettOption exercise / conversion (M)Class A Common Stock8,588USD 0.00USD 0SEC filing ↗
2026-07-17Williams Peter BennettTax withholding (F)Class A Common Stock3,905USD 14.07USD 54,943SEC filing ↗
2026-07-06SPT Holding SarlJ (J)Class A Common Stock20,462,735USD —USD —SEC filing ↗
2026-06-23Zahurancik JohnSale (S)Class A Common Stock15,974USD 22.03USD 351,907SEC filing ↗
2026-06-23Zahurancik JohnSale (S)Class A Common Stock15,974USD 22.03USD 351,907SEC filing ↗
2026-06-22Zahurancik JohnSale (S)Class A Common Stock16,000USD 25.18USD 402,880SEC filing ↗
2026-06-22Zahurancik JohnSale (S)Class A Common Stock16,000USD 25.18USD 402,880SEC filing ↗
2026-06-15von Heynitz HaraldSale (S)Class A Common Stock5,000USD 25.00USD 125,000SEC filing ↗
2026-06-02Fessenden Elizabeth AnneGift (G)Class A Common Stock1,000USD 0.00USD 0SEC filing ↗
2026-05-15AES CORP; AES Grid Stability, LLCSale (S)Class A Common Stock10,066,414USD 21.00USD 211,394,694SEC filing ↗
2026-05-15AES CORP; AES Grid Stability, LLCC (C)Class A Common Stock10,066,414USD —USD —SEC filing ↗
2026-05-15Qatar Investment AuthoritySale (S)Class A Common Stock2,867,172USD 21.00USD 60,210,612SEC filing ↗
2026-05-15SIEMENS AG; SIEMENS PENSION TRUST E V; SPT Holding SarlSale (S)Class A Common Stock10,066,414USD 20.53USD 206,663,479SEC filing ↗
2026-03-18von Heynitz HaraldSale (S)Class A Common Stock10,000USD 16.50USD 165,000SEC filing ↗
2026-03-17von Heynitz HaraldOption exercise / conversion (M)Class A Common Stock32,348USD —USD —SEC filing ↗
2026-03-17Fessenden Elizabeth AnneOption exercise / conversion (M)Class A Common Stock32,348USD —USD —SEC filing ↗
2026-03-17BULLS HERMAN EOption exercise / conversion (M)Class A Common Stock32,348USD —USD —SEC filing ↗
2026-03-17Arnold Cynthia AOption exercise / conversion (M)Class A Common Stock32,348USD —USD —SEC filing ↗
2026-01-01Pasha AhmedOption exercise / conversion (M)Class A Common Stock10,902USD —USD —SEC filing ↗
2026-01-01Pasha AhmedTax withholding (F)Class A Common Stock4,087USD 19.78USD 80,841SEC filing ↗
2025-12-18Zahurancik JohnOption exercise / conversion (M)Class A Common Stock4,746USD —USD —SEC filing ↗
2025-12-18Zahurancik JohnTax withholding (F)Class A Common Stock1,429USD 19.31USD 27,594SEC filing ↗
2025-12-18Williams Peter BennettOption exercise / conversion (M)Class A Common Stock5,825USD —USD —SEC filing ↗
2025-12-18Williams Peter BennettTax withholding (F)Class A Common Stock2,643USD 19.31USD 51,036SEC filing ↗
2025-12-18Philpot MichelleOption exercise / conversion (M)Class A Common Stock2,977USD —USD —SEC filing ↗
2025-12-18Philpot MichelleTax withholding (F)Class A Common Stock1,066USD 19.31USD 20,584SEC filing ↗
2025-12-18Pasha AhmedOption exercise / conversion (M)Class A Common Stock11,616USD —USD —SEC filing ↗
2025-12-18Pasha AhmedTax withholding (F)Class A Common Stock4,293USD 19.31USD 82,898SEC 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerFLNC
CIK0001868941
SectorUtilities
IndustryUtilities—Renewable Yahoo Finance
SEC SIC3690 Miscellaneous Electrical Machinery, Equipment & Supplies
ExchangeNasdaq

Data coverage

Local Form 4 history156 transaction lines from 2021-11-01 to 2026-09-21
34 P purchase lines · 24 S sale lines · 98 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.