Eos Energy Enterprises

Refresh delta (since 2026-06-18)

1. Q3-2026 preliminary results (8-K, 2026-10-19). Revenue $82–83M, up about 19–21% on Q2 and 169–172% on Q3-2025; shipments up about 23% on Q2. GAAP gross margin (55)% to (53)%, about 16–18 points better than Q2 (eighth straight quarterly improvement). Total cash including restricted cash about $344M at 2026-09-30 ($364M at 2026-06-30), with about $114M of operating cash inflow (customer deposits, milestone receipts, tax-credit collections), an $87M DOE loan advance and about $35M of capexCapital expenditureMoney spent on long-lived things — buildings, machines, servers — rather than on running costs.. Backlog about $765M (about 3.2 GWh) at 2026-09-30. Full results are due 2026-11-05. [sec.gov: 8-KForm 8-KA filing for something that happened between reports and matters enough to tell shareholders now. 2026-10-19 exhibit 99.1, https://www.sec.gov/Archives/edgar/data/1805077/000162828026066229/q326prerelease_101926xfo.htm; quarter ended 2026-09-30, preliminary]
2. FY2026 revenue guidance cut at the top end, then pointed to the lower half. On 2026-08-05 Eos tightened FY2026 revenue guidance to $300–350M from $300–400M, citing the timing of consolidating production lines into one Thorn Hill footprint. On 2026-10-19 it said it expects FY2026 revenue in the lower half of the $300–350M range. The dossier cites the earlier $300–400M range and Q3 and Q4 guides of about $81.6M and $100M. The preliminary Q3 range of $82–83M is $0.4–1.4M above the $81.6M figure. For the lower half (at most $325M), with six-month revenue of $125.7M and Q3 at the midpoint $82.5M, Q4 would be at most about $117M. [sec.gov: 8-K 2026-08-05 exhibit 99.1, https://www.sec.gov/Archives/edgar/data/1805077/000162828026052903/eoseq2fy26earningsreleas.htm; sec.gov: 8-K 2026-10-19 exhibit 99.1, as above]
3. Q2-2026 results (10-Q and 8-K, 2026-08-05). Total revenue $68.8M (Q2-2025: $15.2M), of which $55.0M was revenue from a related party; six-month revenue $125.7M ($25.7M). Gross loss $(48.8)M, gross margin (71.0)% (Q2-2025: (203.2)%). Operating loss $(83.8)M ($(63.8)M). Net loss $(275.7)M after fair-value charges on warrants and derivatives; net loss to common $(406.3)M, $(1.20) per share. Six-month net income $233.2M, driven by fair-value gains, not operations: six-month operating loss was $(163.1)M. [sec.gov: 8-K 2026-08-05 exhibit 99.1, https://www.sec.gov/Archives/edgar/data/1805077/000162828026052903/eoseq2fy26earningsreleas.htm; sec.gov: 10-QForm 10-QThe quarterly version of the annual report. Lighter, and not audited. 2026-08-05, https://www.sec.gov/Archives/edgar/data/1805077/000162828026052906/eose-20260630.htm; three and six months ended 2026-06-30]
4. Balance sheet and cash flow at 2026-06-30. Cash and cash equivalents $305.5M ($568.0M at 2025-12-31); cash including restricted $364.1M. Total liabilities $1,224.3M ($1,762.5M); mezzanine preferred stock $713.2M ($1,361.5M); total deficit $(1,030.8)M ($(2,238.9)M). Net cash used in operating activities $(191.8)M for six months ($(95.0)M); investing $(70.6)M. Weighted diluted shares for the six months were 531.7M against 339.9M basic. [sec.gov: 8-K 2026-08-05 exhibit 99.1, as above; as of 2026-06-30]
5. Backlog. Record backlog of $807M at 2026-06-30, up 25% sequentially, per the 2026-08-05 release; about $765M at 2026-09-30 per the preliminary Q3 release, which says six purchase orders came in during Q3 including a $100M order under an existing capacity reservation that "did not contribute to quarter-over-quarter backlog growth". The $765M is below the $807M. [sec.gov: 8-K 2026-08-05 and 8-K 2026-10-19, exhibits 99.1, as above]
6. Frontier Power USA (FPUSA) joint venture. On 2026-08-04 Eos, an affiliate of Cerberus (CCM Frontier) and an affiliate of Hudson Bay Capital signed the amended LLC agreement: Eos contributed $112.6M for Class B units; CCM Frontier contributed $100M for Class A-2 units and received 50.0M founder Class A-1 units and warrants; Hudson Bay contributed $50M for Class C units and received warrants. The 2026-08-05 release states about $263M of gross proceeds for FPUSA including the Eos rights offering, and that the JV has a roughly 16 GWh development pipeline. Eos's rights offering closed on 2026-08-03, issuing 6,885,218 units (shares and 3,019,242 warrants at $5.481) for gross proceeds of about $37.7M. [sec.gov: 8-K 2026-08-06, https://www.sec.gov/Archives/edgar/data/1805077/000095010326012019/ (items 1.01, 3.02); sec.gov: 10-Q 2026-08-05, Note 22, https://www.sec.gov/Archives/edgar/data/1805077/000162828026052906/eose-20260630.htm]
7. DOE-guaranteed loan. The Federal Financing Bank funded a third advance of $87,018,601 on 2026-09-10 under the guaranteed note (maximum principal $277.5M; earlier advances $68.3M on 2024-12-19 and $22.7M on 2025-07-01; the three advances total about $178.0M ). [sec.gov: 8-K 2026-09-14 (item 2.03), https://www.sec.gov/Archives/edgar/data/1805077/000162828026061689/eose-20260910.htm]
8. Manufacturing. Line 2 at Thorn Hill began commercial production; the company is consolidating production into Thorn Hill, which it expects to have about 4 GWh of annual nameplate capacity across two lines, and will add a final shift in Q4. [sec.gov: 8-K 2026-10-19 exhibit 99.1, as above; sec.gov: 8-K 2026-08-05 exhibit 99.1, as above]
9. Management. Michelle Buczkowski (previously Chief Administration Officer) became Chief Commercial Officer on 2026-08-24; Chief Commercial Officer Nathan Kroeker stayed through 2026-10-20 and signed a separation agreement on 2026-09-10 (12 months of base salary continuation at $470,000 and a pro-rated 2026 bonus subject to performance). [sec.gov: 8-K 2026-08-25, https://www.sec.gov/Archives/edgar/data/1805077/000162828026058890/eose-20260824.htm; sec.gov: 8-K/A 2026-09-16, https://www.sec.gov/Archives/edgar/data/1805077/000162828026062265/eose-20260910.htm]
10. Earlier filings in the same window. (a) 8-K 2026-06-30: binding amended and restated term sheet with Cerberus and Hudson Bay affiliates for the Frontier Power USA JV (replacing a 2026-05-12 term sheet), funded in part by net proceeds of a Hudson Bay registered direct offering and the rights offering. (b) 8-K 2026-07-01: Eos issued 13,683,634 shares and 6,004,378 warrants (exercise price $5.481; 0.4388 of a warrant per share) to Hudson Bay Master Fund at $5.481 per share, about $75.0M gross. (c) 8-Ks 2026-07-02 and 2026-07-23: rights offering launched and closed (item 6). (d) 8-K 2026-07-09: Haiyan Song joined the board; Greg Nixon stepped down as a preferred-stock director and Nate Fick moved to that seat; Marie Martin was named Chief Legal Officer. (e) 8-K 2026-07-15: preliminary Q2 revenue $68–69M and gross margin loss of 69–73%, against reported Q2 revenue of $68.8M and (71.0)% (item 3). [sec.gov: 8-K 2026-06-30, https://www.sec.gov/Archives/edgar/data/1805077/000095010326009739/dp249222_8k.htm; sec.gov: 8-K 2026-07-01, https://www.sec.gov/Archives/edgar/data/1805077/000095010326009976/dp249372_8k.htm; sec.gov: 8-K 2026-07-09 exhibit 99.1, https://www.sec.gov/Archives/edgar/data/1805077/000162828026047796/clo-mbmxbodxsongpr070920.htm; sec.gov: 8-K 2026-07-15 exhibit 99.1, https://www.sec.gov/Archives/edgar/data/1805077/000162828026048253/earningsprerelease_0714x.htm]

Bearing on the position seed (facts only; the seed is unchanged). The dossier's Lens 5 records management "targeting positive adjusted EBITDA and gross-margin profitability before the end of 2026"; the preliminary Q3 gross margin is (55)% to (53)% (item 1). The dossier's revenue range of $300–400M is now $300–350M, pointing to the lower half (item 2).

What held

• Revenue continues to ramp (Q3 about 19–21% above Q2) and gross margin has improved for eight quarters, though still deeply negative (item 1).
• The business is still funded by outside capital and the DOE facility rather than by operations: six-month operating cash outflow was $191.8M (items 4, 7).
• Related-party revenue ($55.0M of Q2) ties Eos's reported growth to its own JV and its backers (items 3, 6).