Mark A. Stevens
NVIDIA director · Sequoia veteran · trustee, 3rd Millennium TrustConfirmed · Form 4 + Form 144
Sold 1,848,501 shares 31 Aug – 2 Sep at $220–226 ($410.8m), then 1,022,239 more on 3 Sep ($235.6m). Combined $646m in four trading days. Filed a Form 144 on 2 Sep declaring intent to sell a further 5,000,000 shares (~$1.09bn) through Merrill Lynch. Retains roughly 26.5m shares.
Form 4 filed 2 Sep and 8 Sep 2026; Form 144 filed 2 Sep 2026. Selling entity is the 3rd Millennium Trust. The 144 states the shares were acquired by private placement direct from the issuer on 6 December 2006, and discloses prior three-month sales: 4 Jun 500,000 ($109.9m); 18 Jun 885,000 ($186.0m); 31 Aug 585,000 ($128.9m); 1 Sep 63,501 ($14.0m).
Consensus read
A director sold $646m without a trading plan, at a time when insider selling is running ten to one against buying and the AI complex is visibly wobbling. The absence of a 10b5-1 plan means the sale was discretionary, which means he chose this moment. Informed insider, distribution at the top, take the hint.
Contrarian read
The missing 10b5-1 plan is evidence of less information in this trade, not more — and the Form 144 is the proof. A seller acting on private information wants a plan precisely because a plan is the affirmative defence against the accusation. Forgoing that protection at $646m, and then publishing the next $1.09bn in advance on a public form with a named broker and a fixed date, is not how an informed seller behaves. It is how someone behaves who knows the sale is uninteresting and does not expect to be second-guessed.
Evidence that discriminates
Three facts cut against the consensus read and could not be explained by it.
He pre-announced. The Form 144 telegraphs the next 5,000,000 shares. An informed seller's dominant strategy is to sell quietly into liquidity; broadcasting a billion-dollar overhang moves the price against yourself. This fact is inconsistent with the informed-seller hypothesis and fully consistent with a scheduled liquidity event.
The stock is from 2006. Acquired by private placement twenty years ago, so basis is effectively zero and the entire proceeds are gain. There is no basis decision left, and no tax reason to prefer this quarter over the next. What is left is a calendar — and calendars in trusts are set by trust and estate deadlines, not by charts.
He sold about 10% of the position. Roughly 2.87m shares against ~26.5m retained. An insider acting on a negative view does not leave 90% on the table; the retained stake is nine times the disposal and is the largest single piece of evidence about what he actually thinks.
Inference, not document: the 144's fixed sale date and the appearance of the 970 Foundation alongside the trust suggest a charitable or trust-administration trigger. The filings do not say this. Two live hypotheses remain — scheduled trust/estate administration, or simple diversification out of a position that has become absurdly dominant — and I cannot separate them from the documents available.
Break in cadence, not in direction. He has been a persistent seller all year: $296m across two June dates before this. The four-day cluster is new; being a seller is not.