Fluence Energy FLNC Insider Ownership

NASDAQ FLNC

$5.86 +0.06 (+1.03%)

At close: Oct 19, 2026 · 4:00 PM EDT

Insider Holdings by Owner

34.07Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

24.60%

▼-14.80% pp QoQ

Shares Held by Insiders

33.98Mn

filed for Sep 2026

▼-37.56% QoQ

Shares Outstanding

138.13Mn

138,129,139 shares

Direct Holdings

2.18Mn

Indirect: 31.80Mn

Net Shares Traded (QoQ)

-20.44Mn

net selling in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

In the last 12 months, insiders at Fluence Energy made open-market purchases of $125,120 (17K shares) and open-market sales of $479.29 million (23.05Mn shares).

Fluence Energy's open-market purchases in the past 12 months came from 2 insiders, and its sales from 5 insiders.
Among FLNC's insiders, Herman E. Bulls (Director) was the top open-market buyer in the past 12 months, with $73,600 of stock purchased (10K shares) and the latest purchase on September 21, 2026.
On the selling side, Aes Corp (10% owner) was the top open-market seller of Fluence Energy over the past 12 months, with $211.39 million sold (10.07Mn shares) and the latest sale on May 15, 2026.
In transactions other than open-market trades, Fluence Energy insiders acquired 10.37Mn shares through option exercises and conversions, gave up 114.57K shares to cover taxes or exercise prices and gave away 1K shares as gifts over the past 12 months.
Per Business Quant data, Fluence Energy insiders hold 33.98Mn shares in total based on their latest Form 4 filings, or 24.60% of the 138.13Mn shares outstanding; that total is down 37.56% from 54.42Mn shares at the end of Q2 2026.
Of the 33.98Mn shares held by Fluence Energy insiders, 2.18Mn shares (6.41%) are held directly and 31.8Mn shares (93.59%) indirectly, through trusts, partnerships, family members and other entities.
Per Business Quant, 14 insiders of FLNC hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
Fluence Energy's three largest insider shareholders, based on their latest Form 4 filings, are Siemens Pension Trust E V (10% owner, 20Mn shares), Qatar Investment Authority (10% owner, 11.8Mn shares) and SPT Holding SARL (10% owner, 1.23Mn shares).
Siemens Pension Trust E V alone accounts for 58.86% of the shares held by Fluence Energy insiders.
A total of 46 Form 4 filings with transactions in Fluence Energy stock were made over the past 12 months, by 16 insiders.
This summary of Fluence Energy insider activity covers Form 4 filings through September 22, 2026.

Form 4 Holdings

Insiders Holding FLNC

Insiders 20

Shares held 34.07Mn

Of outstanding 24.67%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Pension Trust E V Siemens	TenPercentOwner	0	20,000,000	20,000,000	58.7%	15 Oct, 2025
2	Investment Authority Qatar	TenPercentOwner	0	11,801,103	11,801,103	34.6%	18 May, 2026
3	Holding Sarl Spt	TenPercentOwner	1,231,982	0	1,231,982	3.6%	08 Jul, 2026
4	Julian Nebreda	President And Ceo	198,811	0	198,811	0.6%	22 Dec, 2025
5	Herman E Bulls	Director	169,550	0	169,550	0.5%	22 Sep, 2026
6	Cynthia A Arnold	Director	118,550	0	118,550	0.3%	19 Mar, 2026
7	Vincent Mathis	Officer	101,305	0	101,305	0.3%	22 Dec, 2025
8	Rebecca Boll	Svp Chief Product Officer	83,774	0	83,774	0.2%	10 Dec, 2024
9	John Zahurancik	Svp Ccso	71,171	0	71,171	0.2%	26 Jun, 2026
10	Elizabeth Anne Fessenden	Director	66,250	0	66,250	0.2%	04 Jun, 2026
11	Heynitz Harald Von	Director	65,550	0	65,550	0.2%	22 Sep, 2026
12	Ahmed Pasha	Svp Chief Financial Officer	38,841	0	38,841	0.1%	05 Jan, 2026
13	Dennis Fehr	Svp Chief Financial Officer	30,590	0	30,590	0.1%	15 Sep, 2022
14	Manuel Perez Dubuc	Chief Executive Officer	30,000	0	30,000	0.1%	22 Feb, 2022
15	Manavendra Sial	Svp Chief Financial Officer	22,853	0	22,853	0.1%	19 Sep, 2023
16	Peter Bennett Williams	Svp And Cpsco	22,292	0	22,292	0.1%	21 Jul, 2026
17	Michelle Philpot	Chief Accounting Officer	8,240	0	8,240	0.0%	22 Dec, 2025
18	Krishna C Vanka	Svp Chief Digital Officer	5,245	0	5,245	0.0%	06 Sep, 2023
19	John Christopher Shelton	Director	5,000	0	5,000	0.0%	16 Feb, 2022
20	Carolee Couch	Svp Chief Sc Manu. Officer	1,200	0	1,200	0.0%	23 May, 2023

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

289 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
21 Sep, 2026	Heynitz Harald Von	Director	Acquired P	7,000	$7.36	$51.52K	65,550	Direct
21 Sep, 2026	Herman E Bulls	Director	Acquired P	10,000	$7.36	$73.60K	169,550	Direct
17 Jul, 2026	Peter Bennett Williams	Svp And Cpsco	Acquired M	8,588	$0.00	$0	26,197	Direct
17 Jul, 2026	Peter Bennett Williams	Svp And Cpsco	Disposed F	3,905	$14.07	$54.94K	22,292	Direct
17 Jul, 2026	Peter Bennett Williams	Svp And Cpsco	Disposed M	8,588	$0.00	$0	0	Direct
06 Jul, 2026	Holding Sarl Spt	TenPercentOwner	Disposed J	20,462,735	—	—	1,231,982	Direct
22 Jun, 2026	John Zahurancik	Svp Ccso	Disposed S	16,000	$25.18	$402.86K	87,145	Direct
23 Jun, 2026	John Zahurancik	Svp Ccso	Disposed S	15,974	$22.03	$351.84K	71,171	Direct
22 Jun, 2026	John Zahurancik	Svp Ccso	Disposed S	16,000	$25.18	$402.86K	87,145	Direct
23 Jun, 2026	John Zahurancik	Svp Ccso	Disposed S	15,974	$22.03	$351.84K	71,171	Direct
15 Jun, 2026	Heynitz Harald Von	Director	Disposed S	5,000	$25.00	$125.00K	58,550	Direct
02 Jun, 2026	Elizabeth Anne Fessenden	Director	Disposed G	1,000	$0.00	$0	66,250	Direct
15 May, 2026	Corp Aes	TenPercentOwner	Acquired C	10,066,414	—	—	10,066,414	Indirect
15 May, 2026	Investment Authority Qatar	TenPercentOwner	Disposed S	2,867,172	$21.00	$60.21Mn	11,801,103	Indirect
15 May, 2026	Corp Aes	TenPercentOwner	Disposed S	10,066,414	$21.00	$211.39Mn	0	Indirect
15 May, 2026	Corp Aes	TenPercentOwner	Disposed C	10,066,414	$0.00	$0	41,432,781	Indirect
15 May, 2026	Holding Sarl Spt	TenPercentOwner	Disposed S	10,066,414	$20.53	$206.64Mn	21,694,717	Direct
17 Mar, 2026	Herman E Bulls	Director	Acquired M	32,348	—	—	159,550	Direct
17 Mar, 2026	Elizabeth Anne Fessenden	Director	Acquired M	32,348	—	—	67,250	Direct
17 Mar, 2026	Cynthia A Arnold	Director	Acquired M	32,348	—	—	118,550	Direct

Showing 1 to 20 of 289 transactions