Coherent's CEO and a director buy $1.2 million of stock after insiders sold $1.1 billion in a year
Neither Form 4 carries a Rule 10b5-1 trading plan, so both purchases were discretionary. They are the first insider buys at Coherent after a year in which insiders sold $1.1 billion of stock and bought none, and they landed the week the FCC's planned ban on Chinese optical parts became public.
Vincent Jiangthree-minute read
Two buys and no plan
Two Form 4s, the SEC's insider-transaction filings, reached the register on the morning of November 12 12. James Robert Anderson, chief executive of Coherent+0.19% — Coherent, up 0.19 percent today, the maker of the lasers and transceivers that carry data between AI chips, bought 5,000 shares in the open market on Monday at $199.48, about $997,000, taking his holding to 190,287 1.
Director Enrico Digirolomo bought 1,000 shares on Tuesday at $222.885, about $223,000, for 11,644 2. Both are coded P for open-market purchases, and both tick no on Rule 10b5-1, the prescheduled trading plans insiders arrange in advance, so both trades were discretionary 12. The director paid 11.7 percent more than his chief executive, one day later 12. No other outlet had reported the buys by Thursday morning.
The week the buys landed
Coherent closed at $170 on November 5, down 13 percent, even after September-quarter revenue of $2.37 billion and a five-year PhotonLink contract worth roughly $20 billion with an unnamed AI customer, which pays nothing until early 2028 34.
On November 10, Reuters reported that Microsoft+0.84% — Microsoft, up 0.84 percent today is pressing the Trump administration to drop a planned ban on new Chinese optical transceivers; the Federal Communications Commission is drafting the ban, and a 3.2-terabit threshold under consideration would reach parts not expected to ramp until 2028 56. The stock traded near $234 on November 11 7. Anderson had told investors on November 4 that calendar 2027 is "basically booked out" and customers are booking 2028 6.
Both buys came after the stock ran from $170 to $234 in a week
Data
| Coherent share price | |
|---|---|
| Nov 5 close | $170 |
| Nov 9 (Anderson) | $199.48 |
| Nov 10 (Digirolomo) | $222.89 |
| Nov 11 | $234 |
Quarterly revenue doubled in two years; the $20 billion contracts have not started paying
Revenue doubled in two years; the $20B PhotonLink ramp starts in 2028
Data
| Revenue | |
|---|---|
| Q4 '23 | $1.13B |
| Q1 '24 | $1.21B |
| Q2 '24 | $1.31B |
| Q3 '24 | $1.35B |
| Q4 '24 | $1.44B |
| Q1 '25 | $1.5B |
| Q2 '25 | $1.53B |
| Q3 '25 | $1.58B |
| Q4 '25 | $1.69B |
| Q1 '26 | $1.81B |
| Q2 '26 | $2.05B |
| Q3 '26 | $2.37B |
A year of selling, then two buys
Through mid-October, a filings count showed $1,117.0 million of insider sales at Coherent over twelve months and not one purchase 8. After $1.1 billion of selling and no buying, the streak ended with the chief executive's own cash 8. The two purchases together, about $1.22 million, are roughly a thousandth of that year of sales, and Anderson's buy added 2.7 percent to his stake 8.
Small money, loud signal
The bearish read is arithmetic: $1.2 million against a market value near $38 billion 7, from a register that spent a year heading for the exits. The FCC option may even help; coverage of the proposed threshold reads a ban timed to 2028 parts as close to ideal for Coherent, fencing off Chinese suppliers that hold two-thirds of global transceiver output while Coherent doubles its own laser capacity 56.
What the filings add to that arithmetic is discretion: both men chose the week, the price and the cash, while capital spending of $776 million runs ahead of cash generation to build the 2028 ramp 4.
Three readings decide whether this week was a turn or a tick
Three readings decide whether this week was a turn or a tick: the FCC's decision on scope and threshold; whether further Form 4s follow from the rest of the board; and the February 3 report, where the first PhotonLink revenue is due 3.
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