Two Sigma Securities’s Research Frontiers REFR Stock Holding History

Two Sigma Securities’s Portfolio REFR Stock Details REFR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$14.5K	Sell	15,809 -7,065	-31%	-$7.73K	﹤0.01%	1424
2025 Q4	$30K	Buy	+22,874	New	+$38.6K	﹤0.01%	1127
2025 Q2	–	Sell	-11,093	Closed	-$12.5K	–	1982
2025 Q1	$12.5K	Buy	+11,093	New	+$15.9K	﹤0.01%	1188
2024 Q4	–	Sell	-10,500	Closed	-$23K	–	2918
2024 Q3	$23K	Sell	10,500 -1,540	-13%	-$3.19K	﹤0.01%	2476
2024 Q2	$22.2K	Buy	+12,040	New	+$21.1K	﹤0.01%	2682
2017 Q4	–	Sell	-13,800	Closed	-$16K	–	1959
2017 Q3	$16K	Buy	+13,800	New	+$16.5K	﹤0.01%	844

Other funds holding REFR

MOS

MGO One Seven Beachwood, Ohio $6.06B AUM 28.9% 1-Year Est. Return

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return

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

VFT

Vanguard Fiduciary Trust Malvern, Pennsylvania $396B AUM

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

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

SRC

Shufro Rose & Co New York $1.47B AUM 19.38% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Two Sigma Securities's REFR Position: Q1 2026 in Review

Two Sigma Securities reduced its Research Frontiers (REFR) stake by 31% in Q1 2026, selling an estimated $7.73K and leaving 15,809 shares worth $14.5K. The position accounts for ﹤0.01% of the portfolio, ranked #1424.

Two Sigma Securities first reported a position in REFR in Q3 2017 and has held it in 6 quarters since. The position peaked at $30K in Q4 2025. 35 funds tracked by Wall St. Rank hold REFR as of Q1 2026.

Two Sigma Securities held 15,809 shares of Research Frontiers worth $14.5K as of Q1 2026.
Two Sigma Securities sold 7,065 Research Frontiers shares in Q1 2026, an estimated $7.73K.
Research Frontiers made up ﹤0.01% of Two Sigma Securities's portfolio in Q1 2026, its #1424 holding.
Two Sigma Securities first reported a position in Research Frontiers in Q3 2017 and has held it in 6 quarters since.
Two Sigma Securities's Research Frontiers position peaked at $30K in Q4 2025.
35 funds tracked by Wall St. Rank held Research Frontiers as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.