--- title: "Coherent's CEO and a director buy $1.2 million of stock after insiders sold $1.1 billion in a year" description: "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." publisher: "The Inference" section: "Data Center" published: 2026-11-12T14:07:25.117Z modified: 2026-11-12T14:07:25.117Z canonical: https://theinference.org/article/coherent-s-ceo-and-a-director-buy-1-2-million-of-stock-after-insiders-sold-1-1-billion-in-a-year language: en keywords: "Coherent, Insider Trading, Optical Communications, Federal Communications Commission" --- # 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. ## Two buys and no plan [Two Form 4s, the SEC's insider-transaction filings](https://www.sec.gov/Archives/edgar/data/820318/000089914026001276/0000899140-26-001276-index.htm), reached the register on the morning of November 12 [1][2]. [James Robert Anderson](https://theinference.org/markets/people/james-robert-anderson), chief executive of [Coherent](https://theinference.org/markets/companies/coherent), 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](https://theinference.org/markets/people/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 [1][2]. The director paid 11.7 percent more than his chief executive, one day later [1][2]. 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](https://theinference.org/article/coherent-s-20-billion-handshake-an-unnamed-customer-funds-a-third-of-the-build) worth roughly $20 billion with an unnamed AI customer, which pays nothing until early 2028 [3][4]. On November 10, [Reuters reported](https://www.msn.com/en-us/technology/tech-companies/exclusive-microsoft-presses-trump-to-scuttle-expected-ban-on-chinese-data-center-technology/ar-AA2h8gBw) that [Microsoft](https://theinference.org/markets/companies/microsoft) is pressing the Trump administration to drop a planned ban on new Chinese optical transceivers; [the Federal Communications Commission is drafting the ban](https://theinference.org/article/coherent-s-proposed-fcc-ban-lands-in-2028-its-chinese-laser-supply-is-a-601-million-letter-of-intent), and a 3.2-terabit threshold under consideration would reach parts not expected to ramp until 2028 [5][6]. 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]. *Chart: **Both buys came after the stock ran from $170 to $234 in a week** Column chart of Coherent's share price across the week: a 170 dollar close on November 5, Anderson's purchase at 199.48 dollars, Digirolomo's at 222.885 dollars, and about 234 dollars on November 11* *Coherent share price in dollars: the November 5 close, the two insider purchase prices, and the November 11 price. The two middle columns are what the insiders paid. Sources: the two Form 4s filed November 12, 2026; Yahoo Finance; 24/7 Wall St. [1][2][3][7]* *Chart: **Quarterly revenue doubled in two years; the $20 billion contracts have not started paying** Column chart of Coherent quarterly revenue from 1.131 billion dollars in the December 2023 quarter to 2.37 billion in the September 2026 quarter, last bar highlighted* *Coherent quarterly revenue, USD billions, calendar labels for fiscal quarters, from its SEC filings. The September 2026 quarter grew 49.9 percent year over year. [9]* ## A year of selling, then two buys Through mid-October, a [filings count](https://theinference.org/article/nvidia-invested-2-billion-in-coherent-insiders-sold-1-1-billion-in-a-year-and-bought-none) 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](https://finance.yahoo.com/technology/articles/microsoft-pushes-trump-halt-ban-182245631.html) 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 [5][6]. 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](https://finance.yahoo.com/markets/stocks/articles/coherent-signed-20-billion-deal-114344042.html), where the first PhotonLink revenue is due [3]. ## Takeaway Coherent's chief executive and a director made the first insider buys in a year, both discretionary, against $1.1 billion of selling. ## Sources 1. [SEC Form 4, Coherent Corp., James Robert Anderson, filed 12 November 2026](https://www.sec.gov/Archives/edgar/data/820318/000089914026001276/0000899140-26-001276-index.htm) 2. [SEC Form 4, Coherent Corp., Enrico Digirolomo, filed 12 November 2026](https://www.sec.gov/Archives/edgar/data/820318/000089914026001275/0000899140-26-001275-index.htm) 3. [Yahoo Finance, "Coherent Signed a $20 Billion Deal. The Market Sold It Off 13% Anyway", 6 November 2026](https://finance.yahoo.com/markets/stocks/articles/coherent-signed-20-billion-deal-114344042.html) 4. [The Inference, "Coherent's $20 billion handshake: an unnamed customer funds a third of the build", 5 November 2026](https://theinference.org/article/coherent-s-20-billion-handshake-an-unnamed-customer-funds-a-third-of-the-build) 5. [Reuters (via MSN), "Exclusive: Microsoft presses Trump to scuttle expected ban on Chinese data center technology", 10 November 2026](https://www.msn.com/en-us/technology/tech-companies/exclusive-microsoft-presses-trump-to-scuttle-expected-ban-on-chinese-data-center-technology/ar-AA2h8gBw) 6. [Yahoo Finance, "Microsoft Pushes Trump to Halt a Ban on Chinese Optics. Coherent Is Already 'Basically Booked Out'", 10 November 2026](https://finance.yahoo.com/technology/articles/microsoft-pushes-trump-halt-ban-182245631.html) 7. [24/7 Wall St., "Applied Optoelectronics Surges 12%, Lumentum Jumps 11% as CoreWeave's Results Revive AI Trade; Coherent Climbs 7%", 11 November 2026](https://247wallst.com/investing/2026/11/11/applied-optoelectronics-surges-12-lumentum-jumps-11-as-coreweaves-results-revive-ai-trade-coherent-climbs-7/) 8. [The Inference, "Nvidia invested $2 billion in Coherent; insiders sold $1.1 billion in a year and bought none", 13 October 2026](https://theinference.org/article/nvidia-invested-2-billion-in-coherent-insiders-sold-1-1-billion-in-a-year-and-bought-none) 9. [Coherent Corp., quarterly figures from its SEC filings, retrieved 12 November 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000820318) --- Coherent's CEO and a director buy $1.2 million of stock after insiders sold $1.1 billion in a year — The Inference. Canonical: https://theinference.org/article/coherent-s-ceo-and-a-director-buy-1-2-million-of-stock-after-insiders-sold-1-1-billion-in-a-year