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Northern Trust decreased MNTK position by 13,903 shares

May 19, 2026Last updated Jul 9, 2026

This StonkWhisper whale intelligence report documents significant institutional position changes in $MNTK based on SEC 13F filings and block-level trading data. Quarterly 13F disclosures are required for institutional investment managers with at least $100 million in qualifying assets under management. These filings reveal long positions in U.S. equities held as of quarter end. Material changes in institutional positioning — particularly from concentrated funds with a history of high-conviction bets — are tracked by StonkWhisper as leading indicators of institutional thesis formation or exit.

NORTHERN TRUST CORP AUM: $756.6B DECREASED

AUM: $756.6B · 19,864 holdings · Period: 2025-12-31

13,903 Share Change

143 Current Shares

$239K Current Value

— Portfolio %

-99.0% Change %

Position Change Detail

Issuer MONTAUK RENEWABLES INC

Ticker MNTK

Shares 14,046 → 143 13,903

Value $28.2M → $239K

Portfolio Weight —

Change Type Decreased

Period of Report 2025-12-31

Other Northern Trust Positions This Period

Ticker	Issuer	Change Type	Share Change	Value
MYPS	PLAYSTUDIOS INC	Increased	+637,598	$427.6M
TMCI	TREACE MED CONCEPTS INC	Increased	+365,608	$921.1M
GDRX	GOODRX HLDGS INC	Increased	+355,900	$976.0M
CMCSA	COMCAST CORP NEW	Increased	+282,732	$18.7B
INTC	INTEL CORP	Decreased	265,122	$50.0B
VT	VANGUARD INTL EQUITY INDEX F	Decreased	255,438	$176.0B
RC	READY CAPITAL CORP	Increased	+231,035	$511.8M
XLK	SELECT SECTOR SPDR TR	Increased	+213,137	$60.6B
EWCZ	EUROPEAN WAX CTR INC	Increased	+205,254	$757.8M
BAC	VERIZON COMMUNICATIONS INC	Increased	+204,738	$27.8B

Other Whales Moving MNTK This Period

Manager	Change Type	Share Change
BlackRock	Decreased	1,695,701
Millennium	Decreased	176,085
Citadel	Decreased	134,291
Geode Capital	Increased	+16,653
Point72	New	+10,418
State Street	Decreased	7,343
Renaissance Tech	Increased	+6,300
Two Sigma	Increased	+6,260
DE Shaw	Increased	+2,716
Neuberger Berman (Eisman)	Decreased	2,097

View all sentiment, news, and whale activity for MNTK (MONTAUK RENEWABLES INC).

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Data sourced from SEC 13F institutional holdings filings. This page does not constitute financial advice. StonkWhisper presents public records — it does not verify or guarantee the accuracy of institutional filings. 13F filings are reported quarterly and may lag actual positions.

Last updated: July 09, 2026 at 06:00 UTC