HolderBook

Who owns what, and what they changed

Every institutional manager that files Form 13F with the SEC, every security they report, and how each position moved from the quarter before. Currently Q2 2026.

8,863
Filers this quarter
$87.0T
Reported value
13,860
Securities held
31
Quarters of history

Most bought

Managers opening a position in Q2 2026

SecurityNew holdersHolders
INTC+1,1453,579
MU+1,0613,916
AMD+1,0114,010
MRVL+8212,246
SNDK+7531,832
AMAT+7233,518
LRCX+6373,113
DELL+6242,143
PANW+6172,936
GLW+5872,688
STX+5831,961
UNH+5453,402
WDC+5401,852
CRWD+5392,474
KLAC+5382,499
TXN+5352,871
CSCO+5144,096
GEV+5063,461
CAT+4784,070
QCOM+4773,037

What institutions bought and sold →

Most recent insider buys

Officers and directors buying on the open market

DateSecurityInsiderValue
2026-09-15CELHDesantis Damon
Director
$447.2K
2026-09-15RWTAbate Christopher J
Chief Executive Officer
$383.9K
2026-09-15LMBHorowitz Joshua
Director
$214.0K
2026-09-15RWTKubicek Greg H
Director
$192.6K
2026-09-15GAMStark Eugene S
VP Administration
$120.0K
2026-09-15RWTCarillo Brooke
Chief Financial Officer
$100.2K
2026-09-14GIIIGoldfarb Morris
CEO
$1.1M
2026-09-14CELHDesantis Damon
Director
$553.0K
2026-09-14COOKurzius Lawrence Erik
Director
$539.1K
2026-09-14PMTSRiley H Sanford
Director, Other
$300.0K
2026-09-14PMTSPeters Nicholas
Director
$250.0K
2026-09-14FCELLivingston Iii Homer John
Director
$247.0K
2026-09-14NAMSDavidson Michael H.
Chief Executive Officer
$226.5K
2026-09-14DVNGaspar Clay M
PRESIDENT AND CEO
$199.9K
2026-09-14COORosebrough Walter M Jr
Director
$162.9K
2026-09-11FTKWilks Matthew
Director
$34.3M
2026-09-11ECLGreen Eric Mark
Director
$1.0M
2026-09-11PVHLarsson Stefan
Chief Executive Officer
$1.0M
2026-09-11ANGXSarowitz Steven I
Director
$472.6K
2026-09-11COORosebrough Walter M Jr
Director
$378.8K

Every recent purchase →

13D activist stakes

Investors crossing 5% with intent to influence

FiledCompanyFiler% of class
2026-09-15SAFX
XCF Global, Inc.
GL Part SPV II, LLC6.7%
2026-09-15-
GENERAL STEEL HOLDINGS INC
Alternative Liquidity Index LP83.0%
2026-09-15-
Korsana Biosciences, Inc.
Venrock Healthcare Capital Partner9.9%
2026-09-15-
JATT II Acquisition Corp.
JATT Ventures II L.P.23.1%
2026-09-11-
GPO Plus, Inc.
Brett H. Pojunis12.7%
2026-09-11-
Rainmaker Worldwide Inc.
Ryan D. Moore19.7%
2026-09-11-
Rainmaker Worldwide Inc.
Michael A. Skinner6.2%
2026-09-11-
Korsana Biosciences, Inc.
Tomas Kiselak20.0%
2026-09-11-
Three Lions Acquisition Corp.
Three Lions Sponsor, LLC21.9%
2026-09-11USAR
USA Rare Earth, Inc.
VB (Rare Earths) Ltd7.9%
2026-09-11VIP
Vulcan Infrastructure and Powe
Conversant PIF VIP Holdco LLC9.8%
2026-09-10ATER
Aterian, Inc.
Lazar David E.95.7%
2026-09-09ABTS
Abits Group Inc
ARC Group International Ltd.22.7%
2026-09-09-
Blue Laser Fusion, Inc.
Richard Ogawa7.3%
2026-09-09-
Blue Laser Fusion, Inc.
Matthew Eitner100.0%
2026-09-09-
Blue Laser Fusion, Inc.
Paul Rudy6.2%
2026-09-09-
Blue Laser Fusion, Inc.
Shuji Nakamura24.9%
2026-09-09HLX
Hornbeck Offshore Services, In
ASOF HOS GP, LLC23.7%
2026-09-09SWVLW
Swvl Holdings Corp
Abdalla Ali38.9%
2026-09-09HELP
Cybin Inc.
So Eric H. L.5.8%

Every activist filing →

Biggest returns against the market

Disclosed books in Q2 2026, against SPY

The full leaderboard →

All filers →   All securities →   What institutions bought and sold →

Which managers beat the market →

Analysis

Written from the filings themselves. Every figure is traceable to a form somebody sent the SEC.

Activists

The second activist arrives at Xponential Fitness

Two activist funds hold a quarter of Xponential's listed shares, and a strategic review has been running since April. The arithmetic of who can outvote whom is less simple than the percentages suggest.

All analysis →

How these figures are assembled →