Key points
- Millennium Management reported owning 5.5% of T1 Energy (TE) as of Aug. 14, up from 4.4% in a filing just two weeks earlier.
- The stake first crossed 5% on July 29, the day TE bottomed near $3.63 in the middle of a capex-driven crash.
- It's a passive Schedule 13G, shared voting power only, not a bet from Englander himself on the company.
Millennium Management filed a Schedule 13G on August 19 saying it now owns 16,269,184 shares of T1 Energy (TE), 5.5% of the company. On its own, that's not much of a story. Funds cross the 5% disclosure line all the time. What got my attention is what the same fund reported two weeks before that.
Above 5%, back below it, then above it again
Back up to August 5. Millennium filed a different 13G that day showing it held 12,346,674 shares, 4.4%, below the 5% threshold that triggers disclosure in the first place. That filing explained itself plainly: "After acquiring beneficial ownership of more than 5% of the outstanding Common Stock on July 29, 2026, the reporting persons ceased to be beneficial owners of more than 5% of the outstanding Common Stock by the date of this filing." Translation: they crossed 5% on July 29, then slipped back under it before they'd even finished paperwork on the first crossing.
The timing matters. July 29 was the day TE touched a low near $3.63 as the shares dropped roughly 24% over two sessions. The selloff followed T1's disclosure that the budget for its Austin fab had increased 20%. Millennium's funds were therefore adding during the sharpest part of the decline. They later cut the combined position below 5%, only to raise it to 5.5% by August 14. The difference between the two filings is about 3.9 million shares. Because T1's share count changed very little, the move mostly reflects actual trading rather than a shift in the denominator.
| Filing | Filed | Shares | % of TE |
|---|---|---|---|
| Schedule 13G | Aug. 19 (as of Aug. 14) | 16,269,184 | 5.5% |
| Schedule 13G | Aug. 5 (crossed 5% July 29, back under it by filing) | 12,346,674 | 4.4% |
T1 Energy's whole month has looked like this
We wrote about the fab budget blowing out 20% in late July, and it's the same story behind the July 29 crash Millennium bought into. T1 shares hit $12.49 on June 4 and have lost more than 60% of their value since. Along the way TE jumped 19% on a 641-megawatt Clearway order, spiked past $6.30 on a polysilicon tariff announcement, then missed on earnings August 12 even with revenue beating estimates by more than $40 million. The stock closed at $4.65 the day before this latest filing. It's been a hard stock to hold with any conviction, which is exactly why the timing on Millennium's filings caught my eye.
I wouldn't read the 13G as evidence that Millennium is making a major directional bet on T1 Energy. The entire position of more than 16 million shares is listed under shared voting and shared dispositive power, with no shares reported under sole power. The filing also says it "should not be construed... as an admission" that Englander personally has beneficial ownership. Millennium houses dozens of trading teams, and the 13G combines their positions into one total. One group can buy during a crash while another trims weeks later, producing exactly this kind of movement across 5% even if nobody at the firm has a strong firmwide view on T1.
The questions worth following are more concrete: Can T1 meet its Q1 2027 target for cell production? And once the details arrive, will the polysilicon tariff improve its cost structure? Those developments can move the stock. Millennium's filings are interesting paperwork, not a trading signal.
We track every Millennium filing on the fund's page. This is not investment advice. Check the live price before placing any order.
