Skip to content

EOSE · Eos Energy Enterprises, Inc.

Industrials · −15.7% on Oct 16

☆ Add to watchlist

Updated Oct 17 · 6 feeds behind: Insider filings, 4 days, and 5 more · Every feed →

On this page

The market view

Price chart

The interactive EOSE chart (by TradingView) loads here.

Our take

4 rules fired on EOSE

In short: none of these rules has solid or some evidence yet, so they show no clear lean on EOSE.

How each did in past tests, against similar stocks over 3 months. Past results don't predict future ones.

All 4 rules
The 0–100 score for EOSE, and which of these rules are open on it right now
Members see one number for how strongly these rules agree on EOSE, and the day each rule fired. Better-tested rules count more, and so do different kinds of filings that point the same way.
See pricing →
Already a member? Sign in

Compare with this company’s history

Is disclosure activity unusual?

See how many different insiders or members of Congress reported purchases or sales of EOSE. Each bar covers 28 days, by disclosure date. Several trades by one person count once in each group and period.

Latest period: Sep 24, 2026–Oct 21, 2026 · UTC dates · today is excluded

Insider purchases

Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual.

Latest 28 days
0
Earlier median
0
Earlier range
0–1
Distinct filers per 28 daysScale: 0–1
Oct 23, 2025Oct 21, 2026
Earlier periodsLatest 28 daysEarlier median 0Limited or missing history

Who appears in the latest period?

No named filers on file for this period.

Up to three filers; one example disclosure each.

Inspect this period’s filings

The history behind this view

First stored company disclosure: Jun 30, 2026. Newest disclosure across this feed: Oct 16, 2026.

Earlier periods in the comparison: 3. Outlined periods are missing data, so they are left out of the comparison. The chart scale changes with the category.

Exact counts, dates and filings for all four categories
Insider purchases · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 0; range: 0–1.

Insider purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 20260Partial; excluded
Jul 2, 2026–Jul 29, 20260Within stored history
Jul 30, 2026–Aug 26, 20260Within stored history
Aug 27, 2026–Sep 23, 20261Within stored history
Sep 24, 2026–Oct 21, 2026Latest period0Within stored history
Insider sales · Short history

Only 3 earlier periods are on file to compare with. We need at least 6 full periods before calling a count unusual. Earlier median: 2; range: 0–3.

Insider sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 20264Partial; excluded
Jul 2, 2026–Jul 29, 20263Within stored history
Jul 30, 2026–Aug 26, 20260Within stored history
Aug 27, 2026–Sep 23, 20262Within stored history
Sep 24, 2026–Oct 21, 2026Latest period0Within stored history
Congress purchases · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress purchases: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 2026—Unavailable
Jul 2, 2026–Jul 29, 2026—Unavailable
Jul 30, 2026–Aug 26, 2026—Unavailable
Aug 27, 2026–Sep 23, 2026—Unavailable
Sep 24, 2026–Oct 21, 2026Latest period—Unavailable
Congress sales · History unavailable

No completed-period disclosures for this company are available in this source. Missing history is not zero activity. Earlier median: —; range: unavailable.

Congress sales: distinct filers in stored disclosures
Period and filingsFilersHistory
Oct 23, 2025–Nov 19, 2025—Unavailable
Nov 20, 2025–Dec 17, 2025—Unavailable
Dec 18, 2025–Jan 14, 2026—Unavailable
Jan 15, 2026–Feb 11, 2026—Unavailable
Feb 12, 2026–Mar 11, 2026—Unavailable
Mar 12, 2026–Apr 8, 2026—Unavailable
Apr 9, 2026–May 6, 2026—Unavailable
May 7, 2026–Jun 3, 2026—Unavailable
Jun 4, 2026–Jul 1, 2026—Unavailable
Jul 2, 2026–Jul 29, 2026—Unavailable
Jul 30, 2026–Aug 26, 2026—Unavailable
Aug 27, 2026–Sep 23, 2026—Unavailable
Sep 24, 2026–Oct 21, 2026Latest period—Unavailable
How to read this comparison

The median is the middle count in up to 12 earlier, non-overlapping 28-day periods; the range runs from the smallest to the largest count. The latest period is excluded from both. A comparison needs at least 6 earlier periods, including 3 with activity. The feed’s latest disclosure must be within 7 days of the current period’s end. This freshness check does not verify complete collection.

Insiders include individuals and reporting entities; only purchase and sale codes enter this view. Congress counts reporting members, including their disclosed family transactions. The same filer can appear in purchases and sales, so these categories should not be added into a net count.

These are stored disclosures, not a complete measure of trading. Reporting delays and collection gaps can change the comparison. More activity does not identify a motive or predict a stock’s return.

Company timeline

What has been happening?

May 1, 2026–Oct 16, 2026. Select a month in a category to inspect its records.

Company filings

Insiders

Owners & lobbying

Insiders · Sep 2026

  1. Disclosed
    Joe Mastrangelo · Sale

    Transaction dated Sep 16, 2026

  2. Disclosed
    Sumeet Puri · Sale

    Transaction dated Sep 16, 2026

  3. Disclosed
    Haiyan Song · Purchase

    Transaction dated Sep 14, 2026

  4. Disclosed
    Haiyan Song · Purchase

    Transaction dated Sep 11, 2026

  5. Disclosed
    Sumeet Puri · Sale

    Transaction dated Sep 9, 2026

All 27 records in this snapshot
  1. Disclosed
    Joe Mastrangelo · Sale

    Transaction dated Sep 16, 2026

  2. Disclosed
    Sumeet Puri · Sale

    Transaction dated Sep 16, 2026

  3. Disclosed
    Haiyan Song · Purchase

    Transaction dated Sep 14, 2026

  4. Disclosed
    Haiyan Song · Purchase

    Transaction dated Sep 11, 2026

  5. Disclosed
    Sumeet Puri · Sale

    Transaction dated Sep 9, 2026

  6. Record date
  7. Disclosed
    Joe Mastrangelo · Sale

    Transaction dated Jul 27, 2026

  8. Disclosed
    Nathan Kroeker · Sale

    Transaction dated Jul 28, 2026

  9. Disclosed
    Sumeet Puri · Sale

    Transaction dated Jul 28, 2026

  10. Filed
  11. Filed
  12. Filed
  13. Filed
  14. Filed
  15. Filed
  16. Disclosed
    Nathan Kroeker · Sale

    Transaction dated Jul 7, 2026

  17. Filed
  18. Filed
  19. Disclosed
    Michael W Silberman · Sale

    Transaction dated Jun 30, 2026

  20. Disclosed
    Michelle Buczkowski · Sale

    Transaction dated Jun 30, 2026

  21. Disclosed
    Nathan Kroeker · Sale

    Transaction dated Jun 30, 2026

  22. Filed
  23. Filed
  24. Filed
  25. Filed
  26. Disclosed
    Sumeet Puri · Sale

    Transaction dated Jun 30, 2026

  27. Filed

Month counts include every record on file. The lists show the newest records on this page. A dash means none on file that month. Trades use disclosure dates; contract dates follow the source record. Nearby events do not establish the cause of a price move.

Who's buying and selling · last 90 days

Congress

No Congress trades on EOSE disclosed in the last 90 days.

See every Congress trade on EOSE →

Company insiders

1 buy · 6 sells (8 filed lots) · $2.3M sold · $58.7K bought

  1. ▼ SELLJoe Mastrangelo Chief Executive OfficerEOSE Eos Energy Enterprises, Inc.$980Kdisclosed Sep 16 · filed the same day
  2. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$172Kdisclosed Sep 16 · filed the same day
  3. ▲ BUYHaiyan Song DirectorEOSE Eos Energy Enterprises, Inc.$19.2Kdisclosed Sep 15 · filed 1 day after the trade
  4. ▲ BUYHaiyan Song DirectorEOSE Eos Energy Enterprises, Inc.$39.5Kdisclosed Sep 15 · filed 4 days after the trade
  5. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$141Kdisclosed Sep 9 · filed the same day
  6. ▼ SELLNathan Kroeker Chief Commercial OfficerEOSE Eos Energy Enterprises, Inc.$371Kdisclosed Jul 28 · filed the same day
  7. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$98Kdisclosed Jul 28 · filed the same day
  8. ▼ SELLJoe Mastrangelo Chief Executive OfficerEOSE Eos Energy Enterprises, Inc.$575Kdisclosed Jul 28 · filed 1 day after the trade
See every insider trade on EOSE →

Filings & events

Company filings (8-K) 141

Events the company must report to the SEC within days — results, deals, departures, restatements.

What it files 8-Ks about

  • Other events · item 8.0117
  • Shared information with investors · item 7.0115
  • Quarterly or yearly results · item 2.0214
  • Directors or officers joined, left or got new pay · item 5.0214
  • Signed a major agreement · item 1.0112
  • Sold shares privately · item 3.027

Filing red flags 11

Warning signs in the company's own SEC filings — going-concern doubts, control weaknesses, staff comment letters, late filings, restatements, Wells notices, clinical holds, dividend cuts.

Lobbying 5

Lobbying reports filed with the Senate for the company.

$400K across 5 reports

Issues named in the most reports

  • Energy/Nuclear 5
  • Taxation/Internal Revenue Code 5
  • Budget/Appropriations 4
  • Tariff (miscellaneous tariff bills) 3
  • Defense 1

Planned insider sales (Form 144) 30

Notices insiders file before they sell certain shares, such as ones they got straight from the company.

None in the last 90 days · 30 notices on file

The notices on file don't give the sale's size; each sale shows up under company insiders once it is reported.

5% owners (13D / 13G) 10

Investors who reported owning 5% or more — 13D for owners who may push for changes, 13G for owners who just hold.

Push for changes, or just hold?

  • 13D, may push for changes: 6 filings
  • 13G, just holds: 4 filings

Filed most: Cerberus Capital Management II, L.P. (6) · Vanguard Capital Management LLC (1) · Susquehanna Securities, LLC (1) · Vanguard Group Inc (1)

Biggest named funds (13F)

The largest EOSE holdings among the well-known funds whose quarterly 13F filings we read — opens here.

Every disclosed trade on EOSE

  1. ▼ SELLJoe Mastrangelo Chief Executive OfficerEOSE Eos Energy Enterprises, Inc.$980Kdisclosed Sep 16 · filed the same day
  2. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$172Kdisclosed Sep 16 · filed the same day
  3. ▲ BUYHaiyan Song DirectorEOSE Eos Energy Enterprises, Inc.$19.2Kdisclosed Sep 15 · filed 1 day after the trade
  4. ▲ BUYHaiyan Song DirectorEOSE Eos Energy Enterprises, Inc.$39.5Kdisclosed Sep 15 · filed 4 days after the trade
  5. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$141Kdisclosed Sep 9 · filed the same day
  6. ▼ SELLNathan Kroeker Chief Commercial OfficerEOSE Eos Energy Enterprises, Inc.$371Kdisclosed Jul 28 · filed the same day
  7. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$98Kdisclosed Jul 28 · filed the same day
  8. ▼ SELLJoe Mastrangelo Chief Executive OfficerEOSE Eos Energy Enterprises, Inc.$575Kdisclosed Jul 28 · filed 1 day after the trade
  9. ▼ SELLNathan Kroeker CCO and Interim CFOEOSE Eos Energy Enterprises, Inc.$371Kdisclosed Jul 7 · filed the same day
  10. ▼ SELLMichelle Buczkowski Chief Administration OfficerEOSE Eos Energy Enterprises, Inc.$67.3Kdisclosed Jun 30 · filed the same day
  11. ▼ SELLSumeet Puri Chief Accounting OfficerEOSE Eos Energy Enterprises, Inc.$51.7Kdisclosed Jun 30 · filed the same day
  12. ▼ SELLMichael W Silberman Chief Legal OfficerEOSE Eos Energy Enterprises, Inc.$88Kdisclosed Jun 30 · filed the same day
  13. ▼ SELLNathan Kroeker CCO and Interim CFOEOSE Eos Energy Enterprises, Inc.$207Kdisclosed Jun 30 · filed the same day
See the trades on EOSE in the feed →
People & votes

Which members of Congress traded EOSE, sponsored bills that touch it and voted on them — opens here.