ONC Insider Trading Activity

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

InsiderRoleDateSharesValue
OYLER JOHN Chief Executive Officer 2026-08-12 1,980 $702,320
OYLER JOHN Chief Executive Officer 2026-08-12 2,515 $896,426
OYLER JOHN Chief Executive Officer 2026-08-12 15,396 $5,506,147
OYLER JOHN Chief Executive Officer 2026-08-12 20,899 $7,490,448
OYLER JOHN Chief Executive Officer 2026-08-12 14,102 $5,064,252
Lee Chan Henry SVP, General Counsel 2026-08-11 812 $157,910
Lee Chan Henry SVP, General Counsel 2026-08-11 1,058 $225,693
Lee Chan Henry SVP, General Counsel 2026-08-11 796 $126,588
Lee Chan Henry SVP, General Counsel 2026-08-11 2,666 $959,760
OYLER JOHN Chief Executive Officer 2026-08-11 13,695 $4,920,844

How Institutional Funds Moved on ONC

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

FundChangeQuarter
Capital World Investors Capital World Investors increased this position by 33% ($481,889,358 -> $641,063,383). 2026-06-30
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP ARROWSTREET CAPITAL, LIMITED PARTNERSHIP increased this position by 117% ($32,840,724 -> $71,173,537). 2026-06-30
TWO SIGMA INVESTMENTS, LP TWO SIGMA INVESTMENTS, LP increased this position by 720% ($9,961,265 -> $81,658,723). 2026-06-30
CITADEL ADVISORS LLC CITADEL ADVISORS LLC increased this position by 37% ($291,298,170 -> $399,625,685). 2026-06-30
HHLR ADVISORS, LTD. HHLR ADVISORS, LTD. exited a position previously worth $307,157,853. 2026-06-30
Qube Research & Technologies Ltd Qube Research & Technologies Ltd opened a new position worth $23,162,077. 2026-06-30
M&G PLC M&G PLC increased this position by 55% ($41,034,411 -> $63,681,825). 2026-06-30
Candriam S.C.A. Candriam S.C.A. increased this position by 38% ($59,932,416 -> $82,486,344). 2026-06-30

Which Funds Hold ONC

Largest reported positions as of 2026-06-30.

FundValueShares
BAKER BROS. ADVISORS LP $2,508,182,548 8,801,567
PRIMECAP MANAGEMENT CO/CA/ $1,427,110,097 5,007,931
Capital International Investors $1,201,254,811 4,210,221
Capital World Investors $641,063,383 2,249,582
CITADEL ADVISORS LLC $399,625,685 1,402,343
FMR LLC $391,530,827 1,373,937
Baird Financial Group, Inc. $105,133,983 368,930
Man Group plc $87,617,731 307,463
Capital International, Inc./CA/ $87,051,781 305,477
Candriam S.C.A. $82,486,344 289,735

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

Capital World Investors: 13F Portfolio Moves Tracked Quarterly

Capital World Investors 13F portfolio moves for the quarter ending 2026-03-31

Capital World Investors’s portfolio moves, tracked quarter by quarter. This profile follows the institutional investor’s Form 13F disclosures over time, giving a running record of new positions, exits, and adjustments as they are reported to the SEC. Because 13F filings only reveal a snapshot of holdings at quarter-end, this page will be refreshed with each … Read more