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FLNC · Fluence Energy, Inc.
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FLNC Fluence Energy (FLNC) Insider Trading, Ownership & Congress Trades

Semiconductors & Electronics · Miscellaneous electrical machinery, equipment & supplies · CIK 0001868941
Quote by TradingView
Activist 13D
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
186
13F, latest reported quarter
Conversions, 180 days
2
Codes C/M, not in net · $0 priced

What the filings say about FLNC

Insiders, 180 days
-$479.0M net sold
2 buyers · 5 sellers · 0% of sales under a 10b5-1 plan
Activist stakes (13D), 180 days
1 filing
Largest: 8.9% of the class

Fluence Energy insider trades (Form 4)

Form 4 buys and sells (codes P and S). Grants, option exercises and conversions excluded.

Over the last 180 days, Fluence Energy, Inc. insiders sold a net $479.0M of stock across 56 Form 4 purchases and sales, with 2 insiders buying. Source: SEC Form 4 filings, as of 2026-10-27.

Insider
Filed
Shares
Value
Since filing
von Heynitz Harald
Director
BUY
2026-09-22 SECtraded 2026-09-21
7,000
$51.5K
-26.3%
Context
  • 4 earlier Form 4 trades (code P or S) here by this insider (2 buys, 2 sales), the last on Jun 15, 2026.
  • -37.2% median (-37.2% mean) 90-day return after 2 previous buys.
  • The trade is 10.7% of the 65,550 shares held after it.
  • 1 other insider bought within 30 days.
  • 186 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director von Heynitz Harald bought about $51.5K of FLNC on Sep 21, 2026, the largest insider purchase at the company since 2025; 1 other insider bought within 30 days and 186 funds added in the latest 13F quarter.
BULLS HERMAN E
Director
BUY
2026-09-22 SECtraded 2026-09-21
10,000
$73.6K
-26.3%
Context
  • 9 earlier Form 4 trades (code P or S) here by this insider (9 buys), the last on Mar 5, 2025.
  • -18.7% median (-8.8% mean) 90-day return after 8 previous buys.
  • The trade is 5.9% of the 169,550 shares held after it.
  • 1 other insider bought within 30 days.
  • 186 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director BULLS HERMAN E bought about $73.6K of FLNC on Sep 21, 2026, the largest insider purchase at the company since 2025; 1 other insider bought within 30 days and 186 funds added in the latest 13F quarter.
Zahurancik John
SVP & CCSO
SELL
2026-06-26 SECtraded 2026-06-23
15,974
$351.9K
-70.8%
Context
  • 2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on Jun 22, 2026.
  • The trade is 22.4% of the 71,171 shares held after it.
  • 1 other insider sold within 30 days.
  • 186 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: SVP & CCSO Zahurancik John sold about $351.9K of FLNC on Jun 23, 2026; 1 other insider sold within 30 days and 186 funds added in the latest 13F quarter.
Zahurancik John
SVP & CCSO
SELL
2026-06-26 SECtraded 2026-06-22
16,000
$402.9K
-70.8%
Context
  • 1 earlier Form 4 trade (code P or S) here by this insider (1 sale), the last on Jun 12, 2024.
  • The trade is 18.4% of the 87,145 shares held after it.
  • 1 other insider sold within 30 days.
  • 186 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: SVP & CCSO Zahurancik John sold about $402.9K of FLNC on Jun 22, 2026; 1 other insider sold within 30 days and 186 funds added in the latest 13F quarter.
von Heynitz Harald
Director
SELL
2026-06-16 SECtraded 2026-06-15
5,000
$125.0K
-76.1%
Context
  • 3 earlier Form 4 trades (code P or S) here by this insider (2 buys, 1 sale), the last on Mar 18, 2026.
  • -37.2% median (-37.2% mean) 90-day return after 2 previous buys.
  • The trade is 8.5% of the 58,550 shares held after it.
  • 1 other insider sold within 30 days.
  • 186 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director von Heynitz Harald sold about $125.0K of FLNC on Jun 15, 2026; 1 other insider sold within 30 days and 186 funds added in the latest 13F quarter.
56 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
See all insider buying · insider selling
Showing the latest few. to see 51 more transactions and use the screener and CSV export. We store only your email; there is no password.
Seven facts, ranked against the sector · Rank is not a forecast
Insiders
net -$479.0M over 180 days
+$125.1K over 90 days · -$478.3M of it by a 10%+ holder
below 97% of Semiconductors & Electronics
Congress
no House purchase disclosed in the last 12 months
Funds
186 funds bought in last quarter
more than 55% of Semiconductors & Electronics
Revenue
-16.1% year over year
below 85% of Semiconductors & Electronics
Margin
-2.1% net margin
below 53% of Semiconductors & Electronics
Buybacks
no share repurchases reported
Short interest
38.0% of the float short (float per yahoo 2026-10-26) · 3.1 days to cover · settled 2026-09-30
The situation: each line is one rule over one dataset
Qatar Investment Authority disclosed a 5%+ stake (8.9%) in the last six months.
What changed in the last 30 days
Oct 27Insider selling stopped: no sales in 90 days after 6 in the prior 90
Why it matters
The absence is the signal: 6 sales in one 90-day window and none in the next is a change of behaviour, not a filing.

Watch FLNC

A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.

The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-63.3%12M
-63%-5%+53%+112%2025-102025-122026-022026-042026-062026-082026-10 2026-05-15 · AES Grid Stability, LLC sold $211.4M2026-05-15 · SIEMENS PENSION TRUST E V sold $206.7M2026-05-15 · Qatar Investment Authority sold $60.2M2026-06-22 · Zahurancik John sold $402.9K2026-06-23 · Zahurancik John sold $351.9K2026-03-18 · von Heynitz Harald sold $165.0K2026-06-15 · von Heynitz Harald sold $125.0K2026-09-21 · BULLS HERMAN E bought $73.6K2026-09-21 · von Heynitz Harald bought $51.5K2026-05-18 · Qatar Investment Authority filed a 5%+ stake (8.9%)2026-06-22 · AES Grid Stability, LLC filed to sell $377.9M2026-06-22 · JOHN ZAHURANCIK filed to sell $793.0K2026-06-22 · Qatar Investment Authority filed to sell $107.6M
Insider buyInsider sell13D/G stakeForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart. When a name files heavily, the largest trades are drawn first.

Who owns FLNC: institutional holders (13F)

13F holdings, latest reported quarter
SIEMENS PENSION TRUST E V
21,694,717 sh
$431.3M
SIEMENS AG
19,738,064 sh
$392.4M
BlackRock, Inc.
7,409,061 sh
$147.3M
TWO SIGMA INVESTMENTS, LP
5,338,779 sh
$106.1M
VANGUARD PORTFOLIO MANAGEMENT LLC
3,656,312 sh
$72.7M

Congress trades in FLNC

No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.

Activist and 5% holders (13D/13G)

13D: intends to influence · 13G: passive
Qatar Investment Authority
Activist 13D · 2026-05-18
8.9%

FLNC planned insider sales (Form 144)

Notice of intent to sell, filed before any sale
AES Grid Stability, LLC
Filed 2026-06-22
$377.9M
JOHN ZAHURANCIK
Filed 2026-06-22
$793.0K
Qatar Investment Authority
Filed 2026-06-22
$107.6M

FLNC mutual fund holders (N-PORT)

Funds ranked by the share of their own portfolio in this stock (N-PORT).
Trenchless Fund ETF
$6.7M position · as of 2026-06-30
4.8%
Moonvest ETF
$2.9M position · as of 2026-07-31
4.2%
FULLERTHALER BEHAVIORAL MICRO-CAP EQUITY FUND
$583.5K position · as of 2026-06-30
1.9%
State Street(R) SPDR(R) S&P Kensho Clean Power ETF
$4.6M position · as of 2026-06-30
1.8%
Global X CleanTech ETF
$562.1K position · as of 2026-05-31
1.7%
ALPS Clean Energy ETF
$2.0M position · as of 2026-05-31
1.4%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M · % is the share of the fund's own portfolio
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
An activist crossed the 5% line with declared intent.
The record shows a net $479.0M sold by insiders over 180 days, 186 funds added last quarter. Each figure is a federal filing, dated the day it went public.
Backtest this pattern Open the screener
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Sector by SEC SIC code
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FLNC financials

Revenue growth
-16.1%
XBRL, annual
Net margin
-2.1%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$2.6B
four quarters, 2025-07-01 to 2026-06-30
Net margin, TTM
-3.1%
net income over revenue, 2025-07-01 to 2026-06-30
Free cash flow, TTM
-$115.3M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Debt to equity
0.00x
long-term 2024-09-30 (21 months older than the period end) plus current 2025-09-30 (9 months older than the period end); equity 2026-06-30
Cash flow to debt
n/a
no debt to cover
Return on equity
-20.7%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets
-3.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on invested capital
n/a
fewer than four consecutive quarters of operating income
Return on capital employed
n/a
fewer than four consecutive quarters of operating income
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Enterprise value
n/a
no share count filed
FCF yield
n/a
no share count filed
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
Price as of 2026-10-23. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
2025-092024-092023-092022-09
Revenue$2.3B$2.7B$2.2B$1.2B
Gross profit$295.8M$341.1M$141.0M-$62.4M
Net income-$48.3M$22.7M-$69.6M-$104.5M
EPS (diluted)-0.370.13-0.60-1.50
Operating cash flow-$145.5M$79.7M-$111.9M-$282.4M
Cash$690.8M$448.7M$345.9M$357.3M
Long-term debtn/a$0$28.0M$0
Buybacksn/an/a$2.8M$5.0M
SEC XBRL, fiscal years, as known on 2026-10-27

FLNC Stock Sonar score 6/7 axes

Find similar shapesCompare

FLNC ranks highest on financial health (99th percentile) and institutional and government (55th), and lowest on risk and compliance (7th), among Semiconductors & Electronics peers.

ProfitHealthGrowthInsidersInstitutionsRisk
Profitability
32
Inputs
  • Return on equity-20.7% · 26 pct, sector of 154
  • Return on assets-3.4% · 39 pct, sector of 171
  • Return on invested capitalfewer than four consecutive quarters of operating income
  • Return on capital employedfewer than four consecutive quarters of operating income
Financial health
100
Inputs
  • Debt to equity0.00x · 100 pct, sector of 152
  • Cash flow to debtno debt to cover
Growth
43
Inputs
  • Revenue growth, YoY-16.1% · 15 pct, sector of 194
  • Backlog growth, YoY+30.6% · 72 pct, sector of 51
Insider conviction
46
Inputs
  • Net Form 4 buying (codes P and S), 180d-$479.0M · 2 pct, sector of 147
  • Insider buyers, 180d2 · 89 pct, sector of 151
Institutional and government
55
Inputs
  • Funds adding, latest quarter186 · 55 pct, sector of 184
  • Congress net buyers, 365dno Congress trades in 365 days
  • Federal contracts, 180dno federal contracts in 180 days
  • Lobbying spend, 4 quarters$370K · 56 pct, sector of 53
Risk and compliance
7
Inputs
  • Short interest, % of float+38.0% · 2 pct, sector of 221
  • Recalls per $1B revenue, 3ynot measured for this sector, almost no peer has an event
  • EPA cases per $1B revenue, 5ynot measured for this sector, almost no peer has an event
  • New text in Risk Factors, latest 10-K+26.8% · 13 pct, sector of 152
1 not measured: US patents
  • US patents needs 1 of 2 inputs, 0 present: patent data not loaded yet

6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored

FLNC filings, in plain words

Are Fluence Energy insiders buying or selling FLNC?

In the 180 days to 2026-10-27, Fluence Energy insiders were net sellers, a net $479.0M: $125.1K of purchases and $479.1M of sales reported on Form 4, by 2 buyers and 5 sellers.

Read the full summary

In the 180 days to 2026-10-27, Fluence Energy insiders were net sellers of FLNC, a net $479.0M across purchases and sales reported on Form 4 by 2 buyers and 5 sellers. Most of that figure, $478.3M, came from a holder of 10% or more rather than an officer or director. Sales outweighed purchases more than tenfold by value. 2 different insiders reported purchases within the last 90 days, a cluster buy, which is rarer than a single purchase. None of the 6 insider sales was flagged as made under a Rule 10b5-1 plan. 1 activist Schedule 13D filing in the last 180 days declared an intent to influence the company, the largest for 8.9% of the class. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.

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