What is the StonkWhisper Whisper Index?

The Whisper Index is StonkWhisper's proprietary market sentiment score (0–90) that aggregates retail investor discussion velocity, volume, and sentiment across Reddit, StockTwits, and other social platforms for 500+ U.S. equities in real time.

What is dark pool trading and why does it matter for stock analysis?

Dark pools are off-exchange trading venues where large institutional orders execute away from public markets. StonkWhisper tracks FINRA-reported dark pool volume to identify unusual institutional accumulation or distribution that may precede significant price moves.

How does StonkWhisper track congressional stock trades?

The STOCK Act requires U.S. Congress members to disclose personal stock trades within 45 days. StonkWhisper monitors these mandatory disclosures in near real-time, surfacing trades by legislators who may have non-public information advantages.

Northern Trust decreased ARKO position by 16,216 shares

May 1, 2026Last updated Jul 9, 2026

This StonkWhisper whale intelligence report documents significant institutional position changes in $ARKO 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

16,216 Share Change

3,413 Current Shares

$15.5M Current Value

— Portfolio %

-82.6% Change %

Position Change Detail

Issuer ARKO CORP

Ticker ARKO

Shares 19,629 → 3,413 16,216

Value $89.7M → $15.5M

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 ARKO This Period

Manager	Change Type	Share Change
Franklin Templeton	Decreased	526,893
Two Sigma	New	+204,885
Citadel	New	+179,878
State Street	Decreased	163,854
BlackRock	Increased	+136,775
Millennium	Increased	+132,250
Marshall Wace	Increased	+122,176
Gabelli	Decreased	82,500
DE Shaw	Decreased	75,269
Caxton	Decreased	52,419

View all sentiment, news, and whale activity for ARKO (ARKO CORP).

Track Northern Trust and other whale moves in real time on The Wire →

Get alerts when new 13F filings drop — Go Pro →

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