Jane Street’s Siebert Financial SIEB Stock Holding History

Jane Street’s Portfolio SIEB Stock Details SIEB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q4	–	Sell	-10,000	Closed	-$34K	–	10754
2021 Q3	$34K	Sell	10,000 -1,000	-9%	-$3.96K	﹤0.01%	9650
2021 Q2	$53K	Sell	11,000 -10,500	-49%	-$43.5K	﹤0.01%	9490
2021 Q1	$87K	Buy	+21,500	New	+$103K	﹤0.01%	8686

Other funds holding SIEB

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Cetera Investment Advisers Schaumburg, Illinois $94B AUM 20.14% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Northern Trust Chicago, Illinois $757B AUM 28.64% 1-Year Est. Return

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

STRS Ohio Columbus, Ohio $26.7B AUM 43.32% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Jane Street's SIEB Position: Q1 2026 in Review

Jane Street sold out of Siebert Financial (SIEB) in Q1 2026, closing a stake of 16,373 shares — an estimated $57.5K sold.

Jane Street first reported a position in SIEB in Q4 2024 and held it in 3 quarters. The position peaked at $57.5K in Q4 2025. 55 funds tracked by Wall St. Rank hold SIEB as of Q1 2026.

Jane Street reported no remaining Siebert Financial position as of Q1 2026 after selling out during the quarter.
Jane Street sold 16,373 Siebert Financial shares in Q1 2026, an estimated $57.5K.
Jane Street first reported a position in Siebert Financial in Q4 2024 and held it in 3 quarters.
Jane Street's Siebert Financial position peaked at $57.5K in Q4 2025.
55 funds tracked by Wall St. Rank held Siebert Financial as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.