RS Insider Trading Activity

Transactions disclosed by company insiders to the SEC on Form 4, most recent first.

InsiderRoleDateSharesValue
Ajemyan Arthur SVP, CFO 2026-07-31 2,200 $902,242
Smith William A II SVP, General Counsel, Corp Sec 2026-07-28 962 $398,172
Smith William A II SVP, General Counsel, Corp Sec 2026-07-28 1,391 $576,458

How Institutional Funds Moved on RS

Position changes disclosed in SEC Form 13F filings. These report a quarterly snapshot, not exact trade dates.

FundChangeQuarter
NORGES BANK NORGES BANK opened a new position worth $244,192,806. 2026-06-30
Sixth Street Partners Management Company, L.P. Sixth Street Partners Management Company, L.P. opened a new position worth $161,216,246. 2026-06-30
RENAISSANCE TECHNOLOGIES LLC RENAISSANCE TECHNOLOGIES LLC opened a new position worth $24,751,747. 2026-06-30
Boston Partners Boston Partners increased this position by 475% ($20,367,158 -> $117,203,550). 2026-06-30
Bank of New York Mellon Corp Bank of New York Mellon Corp increased this position by 10215% ($1,092,795 -> $112,716,614). 2026-06-30
GEODE CAPITAL MANAGEMENT, LLC GEODE CAPITAL MANAGEMENT, LLC increased this position by 20% ($233,302,452 -> $279,727,825). 2026-06-30
O'SHAUGHNESSY ASSET MANAGEMENT, LLC O'SHAUGHNESSY ASSET MANAGEMENT, LLC increased this position by 2432% ($1,271,601 -> $32,200,210). 2026-06-30
VANGUARD CAPITAL MANAGEMENT LLC VANGUARD CAPITAL MANAGEMENT LLC increased this position by 22% ($707,597,485 -> $862,379,759). 2026-06-30

Which Funds Hold RS

Largest reported positions as of 2026-06-30.

FundValueShares
VANGUARD PORTFOLIO MANAGEMENT LLC $1,229,155,582 3,290,031
VANGUARD CAPITAL MANAGEMENT LLC $862,379,759 2,308,297
WELLINGTON MANAGEMENT GROUP LLP $388,665,794 1,040,326
GEODE CAPITAL MANAGEMENT, LLC $279,727,825 751,451
YACKTMAN ASSET MANAGEMENT LP $260,984,258 698,566
NORGES BANK $244,192,806 653,621
ALLIANCEBERNSTEIN L.P. $219,575,514 722,478
DIMENSIONAL FUND ADVISORS LP $199,143,669 533,039
AMERICAN CENTURY COMPANIES INC $179,864,713 481,435
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $161,216,246 431,521

Data compiled from public SEC filings. This is informational reporting, not investment advice.

William Blair Investment Management, LLC: 13F Portfolio Moves Tracked

Summary of William Blair Investment Management LLC portfolio changes for the quarter ending 2026-03-31, including a new Birkenstock position and increased stakes in Gold Fields, Millicom, Sterling Infrastructure, and TotalEnergies.

Quarter Ending 2026-03-31 During the quarter ending 2026-03-31, William Blair Investment Management, LLC made notable adjustments across its equity portfolio, with a clear tilt toward adding to existing positions rather than establishing new ones. The most significant new commitment was a fresh stake in Birkenstock Holding PLC (BIRK), valued at $92,276,654. Several holdings saw dramatic … Read more