John Overdeck’s Phio Pharmaceuticals PHIO Stock Holding History

John Overdeck’s Portfolio PHIO Stock Details PHIO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$22K	Sell	21,501 -10,994	-34%	-$12.5K	﹤0.01%	4981
2026 Q1	$39.6K	Buy	32,495 +18,001	+124%	+$20.5K	﹤0.01%	4471
2025 Q4	$15.2K	Buy	+14,494	New	+$23.2K	﹤0.01%	4011
2023 Q1	–	Sell	-207	Closed	-$8.33K	–	3153
2022 Q4	$8.33K	Sell	207 -8	-4%	-$410	﹤0.01%	2737
2022 Q3	$13K	Sell	215 -42	-16%	-$3.18K	﹤0.01%	2402
2022 Q2	$20K	Buy	+257	New	+$24.2K	﹤0.01%	2406
2022 Q1	–	Sell	-1,192	Closed	-$129K	–	3926
2021 Q4	$129K	Buy	1,192 +802	+206%	+$128K	﹤0.01%	4013
2021 Q3	$86K	Buy	390 +2	+0.5%	+$418	﹤0.01%	4100
2021 Q2	$95K	Buy	+388	New	+$95.6K	﹤0.01%	3904

Other funds holding PHIO

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

NAMI

Nomura Asset Management International Philadelphia, Pennsylvania $66.6B AUM

Cetera Investment Advisers Schaumburg, Illinois $110B AUM 26.29% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

John Overdeck's PHIO Position: Q2 2026 in Review

John Overdeck reduced its Phio Pharmaceuticals (PHIO) stake by 34% in Q2 2026, selling an estimated $12.5K and leaving 21,501 shares worth $22K. The position accounts for ﹤0.01% of the portfolio, ranked #4981.

John Overdeck first reported a position in PHIO in Q2 2021 and has held it in 9 quarters since. The position peaked at $129K in Q4 2021. 24 funds tracked by Wall St. Rank hold PHIO as of Q2 2026.

John Overdeck held 21,501 shares of Phio Pharmaceuticals worth $22K as of Q2 2026.
John Overdeck sold 10,994 Phio Pharmaceuticals shares in Q2 2026, an estimated $12.5K.
Phio Pharmaceuticals made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #4981 holding.
John Overdeck first reported a position in Phio Pharmaceuticals in Q2 2021 and has held it in 9 quarters since.
John Overdeck's Phio Pharmaceuticals position peaked at $129K in Q4 2021.
24 funds tracked by Wall St. Rank held Phio Pharmaceuticals as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.