Stock Ownership/KNF

Knife River (KNF): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in KNF · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
12
13F filers
Aggregate Value
$266.6M
Across holders
Last Price
$63.66
2026-08-24
Sector
Materials
GICS
Quarterly fund activity7 increased4 reduced5 exited
Full exits: Verition Fund Management LLC, RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC, MARSHALL WACE, LLP, Man Group plc
Institutional Holders of KNF
↗
12 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
BAILLIE GIFFORD & CO
CIK 0001088875
Institutional Manager2.74M$229.1M85.9%0.2%Added+$166.5MQ2 2026
CITADEL ADVISORS LLC
CIK 0001423053
Hedge Fund126K$10.5M3.9%0.0%Added+$9.2MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund98K$8.2M3.1%0.0%Added+$8.2MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager95K$8.0M3.0%0.1%Reduced$-295KQ2 2026
ArrowMark Colorado Holdings LLC
CIK 0001483859
Hedge Fund60K$5.0M1.9%0.2%Added+$3.1MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund38K$3.2M1.2%0.0%Added+$418KQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund18K$1.5M0.6%0.0%Reduced$-131KQ2 2026
Holocene Advisors, LP
CIK 0001700574
Hedge Fund8K$697K0.3%0.0%Reduced$-1.1MQ2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund3K$259K0.1%0.0%Added—Q2 2026
Ancora Advisors, LLC
CIK 0001446114
Hedge Fund1K$124K0.0%0.0%Unchanged+$0Q2 2026
BAILLIE GIFFORD & COAdded
Institutional Manager
$229.1M· 85.9% of total· 0.2% port· 2.74M sh· +$166.5M QoQ· Q2 2026
CITADEL ADVISORS LLCAdded
Hedge Fund
$10.5M· 3.9% of total· 0.0% port· 126K sh· +$9.2M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$8.2M· 3.1% of total· 0.0% port· 98K sh· +$8.2M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALReduced
Institutional Manager
$8.0M· 3.0% of total· 0.1% port· 95K sh· $-295K QoQ· Q2 2026
ArrowMark Colorado Holdings LLCAdded
Hedge Fund
$5.0M· 1.9% of total· 0.2% port· 60K sh· +$3.1M QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$3.2M· 1.2% of total· 0.0% port· 38K sh· +$418K QoQ· Q2 2026
Gotham Asset Management, LLCReduced
Hedge Fund
$1.5M· 0.6% of total· 0.0% port· 18K sh· $-131K QoQ· Q2 2026
Holocene Advisors, LPReduced
Hedge Fund
$697K· 0.3% of total· 0.0% port· 8K sh· $-1.1M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$259K· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
Ancora Advisors, LLCUnchanged
Hedge Fund
$124K· 0.0% of total· 0.0% port· 1K sh· +$0 QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$22K· 0.0% of total· 0.0% port· 259 sh· $-72K QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$516· 0.0% of total· 0.0% port· 6 sh· — QoQ· Q2 2026
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