Renaissance Technologies Adds $620.5M Space Exploration Stake

Renaissance Technologies opened a position in Space Exploration Technologies Corp, according to its Form 13F-HR filed Nov. 12, 2026. The fund held 4,113,200 Class A shares (ticker SPCX) worth $620.5 million as of Sept. 30, or 0.85% of its long positions. It was the largest new position by value.

Form 13F is the quarterly report in which an institutional manager with at least $100 million in qualifying U.S.-listed securities discloses its long positions as of the last day of the quarter. It does not show short positions or cash. The Form 13F-HR on SEC EDGAR was filed 43 days after quarter end. All values here are as of the quarter end.

Bank of America was the second-largest new position by value: 6,453,339 shares worth $351.3 million, or 0.48% of the portfolio (BAC stock page). Goldman Sachs followed with 271,932 shares valued at $244.8 million, or 0.33% (GS stock page). The VanEck Semiconductor ETF (SMH) came in at 305,332 shares worth $185.9 million. Booking Holdings rounded out the five largest new positions with 1,121,021 shares worth $182.6 million (BKNG stock page).

Micron Technology is the fund's top holding by value, at 1,520,639 shares worth about $1.62 billion, or 2.21% of the portfolio. Its share count rose 618.7% from 211,580 shares at the end of the second quarter (MU stock page). Advanced Micro Devices ranks second at 1,995,101 shares worth $1.21 billion, or 1.64% of the portfolio, after a 140.5% increase from 829,697 shares (AMD stock page).

Among positions the fund added to, ranked by position value, Alphabet's Class A shares came third. The fund held 2,405,471 shares worth $827.7 million, up 3.8% (GOOGL stock page). UnitedHealth Group followed, with its share count up 506.7% to 2,226,720 shares worth $817.4 million.

On the other side, the largest reduction by position value was United Therapeutics, trimmed 1.9% to 1,675,899 shares worth $908.2 million. Intel was cut 5.2%, or 380,692 shares, to 6,941,236 shares worth $834.5 million. Exelixis was reduced 4.7% to 12,792,693 shares valued at $747.2 million.

Blackstone was the largest exit by prior-quarter value. The fund had held 1,570,300 shares worth $184.8 million at the end of June. The SPDR S&P 500 ETF Trust (SPY) was also gone; it had been 219,040 shares worth $163.6 million. Marvell Technology, at 505,425 shares worth $150.6 million, and Danaher, at 760,636 shares worth $144.9 million, were among the other exits.

More on the manager is on the Renaissance Technologies 13F portfolio page, and other filers are on the hedge fund 13F tracker.

The fund's long positions were worth $73.4 billion across 3,151 positions, up 1.1% from $72.6 billion at the end of June. The top 10 positions made up 12% of that value. In all, 591 positions were new, 1,136 were added to, 1,414 were reduced and 580 were exited.