Constellation Energy SEC filings, summarized
We read every Constellation Energy 8-K filing and insider trade the night it hits SEC EDGAR, and turn it into a two-minute plain-English summary.
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Recent filings
Constellation Energy director buys $417,931 in stock
Constellation Energy director Roger W. Crandall bought 1,500 shares of common stock on the open market at $278.62 per share on August 11, 2026, for…
Constellation Names CEO Joe Dominguez Chairman and Adds MassMutual CEO
Constellation said Joe Dominguez became chairman of the board effective August 4, 2026, following Robert Lawless’s retirement from the board. Charles…
Constellation Energy ($CEG) filed a Form 8‑K on Mar 26, 2026 — Item 9.01 furnishes Inline XBRL exhibits:…
Constellation Energy ($CEG) filed a Form 8‑K on Mar 26, 2026 — Item 9.01 furnishes Inline XBRL exhibits: Exhibit 101 (Interactive Data) and Exhibit 104…
Constellation Energy ($CEG): Director Alan Armstrong resigned from the Board effective March 23, 2026, per…
Constellation Energy ($CEG): Director Alan Armstrong resigned from the Board effective March 23, 2026, per Form 8‑K (Item 5.02) filed March 26, 2026. 📌…
Constellation filed Item 9.01 (Mar 20, 2026): audited consolidated financials of Calpine (business to be…
Constellation filed Item 9.01 (Mar 20, 2026): audited consolidated financials of Calpine (business to be acquired) as of Dec 31, 2025 & 2024; yrs 2023-2025…
Completed merger on Jan 7, 2026: Constellation (CEG Parent) closed the Merger with Calpine per the Jan 10,…
Completed merger on Jan 7, 2026: Constellation (CEG Parent) closed the Merger with Calpine per the Jan 10, 2025 Merger Agreement. Calpine converted to…
Constellation Energy ($CEG) filed an 8‑K (Item 9.01) on Feb 24, 2026 furnishing Exhibit 99.1 (press…
Constellation Energy ($CEG) filed an 8‑K (Item 9.01) on Feb 24, 2026 furnishing Exhibit 99.1 (press release & earnings attachments) and XBRL cover files…
Constellation Energy ($CEG) announced Q4 results for the period ended Dec 31, 2025 via press release on…
Constellation Energy ($CEG) announced Q4 results for the period ended Dec 31, 2025 via press release on Feb 24, 2026. Press release and related attachments…
Constellation Energy filed an 8‑K on 2026-02-24 under Item 2.02 (Results of Operations & Financial…
Constellation Energy filed an 8‑K on 2026-02-24 under Item 2.02 (Results of Operations & Financial Condition); Section 7 cites Regulation FD — indicates…
Constellation ($CEG) filed an 8‑K (Jan 15, 2026) furnishing supplemental indentures & forms of new senior…
Constellation ($CEG) filed an 8‑K (Jan 15, 2026) furnishing supplemental indentures & forms of new senior notes (2029, Feb‑2031, Mar‑2031) tied to Calpine…
Constellation Energy ($CEG) filed an 8-K on 2026-01-15: Item 2.03 notifies creation of a "direct financial…
Constellation Energy ($CEG) filed an 8-K on 2026-01-15: Item 2.03 notifies creation of a "direct financial obligation" and incorporates Item 1.01 by…
BREAKING: $CEG confirms close of Calpine deal & completes private exchange — $2.2897B of Calpine notes…
BREAKING: $CEG confirms close of Calpine deal & completes private exchange — $2.2897B of Calpine notes tendered, accepted, retired & canceled; Calpine now a…
8‑K (Item 9.01) filed 2026‑01‑13: Constellation Energy Corp & Constellation Energy Generation, LLC…
8‑K (Item 9.01) filed 2026‑01‑13: Constellation Energy Corp & Constellation Energy Generation, LLC furnished Exhibit 99.1 (press release) plus Inline XBRL…
Jan 13, 2026 — Constellation Energy Generation, LLC announced expiration of its previously announced…
Jan 13, 2026 — Constellation Energy Generation, LLC announced expiration of its previously announced exchange offers and consent solicitations for…
Constellation ($CEG) 8‑K (Jan 7, 2026): Audited Calpine consolidated FS (YE 2024/2023/2022) and unaudited…
Constellation ($CEG) 8‑K (Jan 7, 2026): Audited Calpine consolidated FS (YE 2024/2023/2022) and unaudited Q3 2025/2024 statements, plus pro forma combined…
Jan 7, 2026 — CEG Parent announced completion of the Mergers.
Jan 7, 2026 — CEG Parent announced completion of the Mergers. Press release attached to Form 8‑K as Exhibit 99.1; incorporated by reference and furnished…
Effective Jan 7, 2026 (closing of the Mergers), Shane Smith promoted to Executive VP & Chief Financial…
Effective Jan 7, 2026 (closing of the Mergers), Shane Smith promoted to Executive VP & Chief Financial Officer and principal financial officer of CEG…
Constellation Energy ($CEG) issued stock consideration to former Calpine stockholders; the issuance was…
Constellation Energy ($CEG) issued stock consideration to former Calpine stockholders; the issuance was unregistered and made in reliance on Section 4(a)(2)…
Constellation Energy ($CEG) 8‑K filed 2026‑01‑07: Item 2.03 incorporates Item 1.01 “Calpine Notes” —…
Constellation Energy ($CEG) 8‑K filed 2026‑01‑07: Item 2.03 incorporates Item 1.01 “Calpine Notes” — indicating creation of a direct financial…
On Jan 7, 2026 Constellation/CEG Parent closed the transaction — Calpine is now a wholly owned subsidiary…
On Jan 7, 2026 Constellation/CEG Parent closed the transaction — Calpine is now a wholly owned subsidiary after a Jan 2 reorg and Jan 5 conversion to a DE…