greeksoup/ stock research
Stock research / United States / ARWR / 13F holders

Arrowhead Pharmaceuticals, Inc. 13F holders

Of the 44 funds followed here, 9 reported a position in Arrowhead Pharmaceuticals, Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 8.0 million shares worth $655.3 million, 0.0% of its reported book. New this quarter: Millennium Management. Sold out: Bridgewater Associates.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC8,039,804$655.3 million0.0%+773,152added30 June 202613F
Norges Bank3,896,536$317.6 million0.0%held30 June 202613F
Geode Capital Management3,530,612$298.8 million0.0%-748,216trimmed30 June 202613F
Two Sigma Investments580,609$47.3 million0.0%+534,909added30 June 202613F
Renaissance Technologies468,921$38.2 million0.1%-567,574trimmed30 June 202613F
Millennium Management407,537$33.2 million0.0%+407,537new30 June 202613F
Citadel Advisors326,000$26.6 million0.0%-24,494trimmed30 June 202613F
Alyeska58,722$4.8 million0.0%-414,148trimmed30 June 202613F
Point72 Asset Management39,900$3.3 million0.0%-6,500trimmed30 June 202613F
Bridgewater Associates0$00.0%-95,552exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
14 August 202613G/AAvoro Capital Advisors LLC and 3 others13.8 million9.6%30 June 2026passive, institutional (13d-1(b))EDGAR
31 July 202613G/AVanguard Portfolio Management and 1 other6.4 million4.5%30 June 2026passive, institutional (13d-1(b))EDGAR
27 July 202613G/ABlackRock, Inc. and 1 other14.2 million10.1%30 June 2026passive, institutional (13d-1(b))EDGAR
6 May 202613GFmr Llc and 3 others7.3 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other7.1 million5.0%31 March 2026passive, institutional (13d-1(b))EDGAR
28 April 202613GVanguard Portfolio Management and 1 other7.3 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
24 April 202613G/ABlackRock, Inc. and 1 other17.1 million12.2%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
21 January 202613G/ABlackRock, Inc. and 1 other20.3 million15.0%31 December 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
19 August 202616,510$87.90SEC
6 August 20269$86.91SEC
3 August 202674$84.65SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 16,510 on 19 August 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to ARWR by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

The same record on your computer

GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.

Install