Ally Bridge Group (NY) LLC

Registered adviser

CIK

1822947

Location

NEW YORK, NY

Portfolio Value

Small $113,068,834

Diversification

Diversified

Reports for

Fan Yu

Filing Date

Global Rank

#8,153 / 8,818 ▼ 591

Top Industry

Biotechnology 97.8%

Period ended 4 months ago

Filed Aug 14, 2026 · 2mo

23 quarters · since Dec 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Registered adviser

Form ADV roster, Oct 1, 2026

Form ADV adviser

CRD 291072

Roster of Oct 1, 2026

Regulatory AUM

$218,948,199

Main clients

Pooled investment vehicles (100% of AUM)

Private funds

3 funds · Hedge funds

Focus by fund count, roster of Oct 1, 2026

$340,650,947 gross assets

LEI

549300OLTAFEOY6ZKY22

Private funds on Schedule D 7.B.(1)

As filed Mar 28, 2024; SEC's bulk Form ADV archive ends with 2024 filings.

$335,496,792 gross assets in 3 funds Hedge funds $335,496,792 (3)

Form ADV history

Monthly rosters from Dec 2019; each row is a run with the same figures, newest first.

Rosters	Regulatory AUM	Main clients
Apr 2026 to Oct 2026	$218,948,199	Pooled investment vehicles (100%)
Apr 2025 to Mar 2026	$167,923,113	Pooled investment vehicles (100%)
Apr 2024 to Mar 2025	$226,104,596	Pooled investment vehicles (100%)
May 2023 to Mar 2024	$146,724,487	Pooled investment vehicles (100%)
Apr 2023	$146,724,487	Pooled investment vehicles (100%)
Apr 2022 to Mar 2023	$360,023,492	Pooled investment vehicles (100%)

1 earlier changes not shown.

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Concentrated

The top 10 positions are 64.8% of the book (60%+)

Turnover

High turnover

161.8% over the last four quarters (100%+)

Horizon

Short horizon

Value-weighted holding period 3.3 quarters (under 4)

Closest benchmark: the Russell 2000 as of 2026-06-30, active share 99.5%; sector active share 90.9% against the combined 13F book's sector weights.

Over time 23 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

View clone backtest

Portfolio Concentration

25 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

16.6%

+5.8 pts

Top 5

54.3%

+17.2 pts

Top 10

70.5%

+11.7 pts

HHI

802

Diversified+287

Portfolio Trend

23 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Healthcare	100.0%	$113,068,834	25

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

2 positions

Ticker	Company	Δ Shares	Shares	Value
NERV	Minerva Neurosciences, Inc.	+520,302	2,175,802	$12,075,701
PMN	ProMIS Neurosciences Inc.	+206,100	620,319	$8,163,398
No positions match the current search.

Trimmed

Positions the filer reduced

9 positions

Ticker	Company	Δ Shares	Shares	Value
OVID	Ovid Therapeutics Inc.	−2,193,898	624,561	$1,680,069
SLDB	Solid Biosciences Inc.	−511,015	255,959	$2,557,030
EPRX	Eupraxia Pharmaceuticals Inc.	−408,200	252,175	$1,666,876
CATX	Perspective Therapeutics, Inc.	−182,599	743,958	$2,536,896
URGN	UroGen Pharma Ltd.	−132,941	69,183	$2,545,934
CTMX	CytomX Therapeutics, Inc.	−125,000	775,000	$2,906,250
IVA	Inventiva S.A.	−110,500	634,800	$2,399,544
ALMS	Alumis Inc.	−90,500	76,459	$2,151,556
EWTX	Edgewise Therapeutics, Inc.	−77,700	83,300	$3,384,479
No positions match the current search.

New Positions

Positions the filer opened this quarter

10 positions

Ticker	Company	Shares	Value
TRAX	First Tracks Biotherapeutics, Inc.	284,287	$5,719,854
AXSM	Axsome Therapeutics, Inc.	16,493	$4,036,991
ASMB	Assembly Biosciences, Inc.	140,000	$3,847,200
CLYM	Climb Bio, Inc.	249,172	$3,249,202
KURA	Kura Oncology, Inc.	290,000	$3,181,300
AVTX	Avalo Therapeutics, Inc.	150,000	$2,772,000
PALI	Palisade Bio, Inc.	1,229,000	$2,568,610
IDYA	IDEAYA Biosciences, Inc.	67,500	$2,515,725
IBIO	iBio, Inc.	390,147	$682,757
TRAW	Traws Pharma, Inc.	786,236	$660,438
No positions match the current search.

Sold Out

Positions the filer fully exited

8 positions

Ticker	Company	Shares	Value
PRAX	Praxis Precision Medicines, Inc.	32,810	$10,571,053
—		200,000	$6,696,000
CMPS	COMPASS Pathways plc	1,045,000	$5,778,850
TARS	Tarsus Pharmaceuticals, Inc.	80,859	$5,672,258
ABVX	Abivax S.A.	33,712	$3,753,831
CAPR	Capricor Therapeutics, Inc.	113,899	$3,462,529
IKT	Inhibikase Therapeutics, Inc.	1,325,000	$2,226,000
RLMD	Relmada Therapeutics, Inc.	210,525	$1,465,254
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

25 tracked positions · $113,068,834 total · filing declares 25 positions · $113,071,435 · as of Jun 30, 2026

All sectors Healthcare

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
DFTX	Definium Therapeutics, Inc. CALL Healthcare	NEW	400,000	NEW	$18,816,000	NEW	—	—	16.64%
ABVX	Abivax S.A. CALL Healthcare	Added	125,000	+91,288	$16,657,500	+343.7%	—	—	14.73%
NERV	Minerva Neurosciences, Inc. Healthcare	Added	2,175,802	+520,302	$12,075,701	+21.1%	3	$4.12	10.68%
PMN	ProMIS Neurosciences Inc. Healthcare	Added	620,319	+206,100	$8,163,398	+55.2%	12	$15.95	7.22%
TRAX	First Tracks Biotherapeutics, Inc. Healthcare	NEW	284,287	NEW	$5,719,854	NEW	1	$18.70	5.06%
AXSM	Axsome Therapeutics, Inc. Healthcare	NEW	16,493	NEW	$4,036,991	NEW	1	$216.87	3.57%
ASMB	Assembly Biosciences, Inc. Healthcare	NEW	140,000	NEW	$3,847,200	NEW	1	$27.22	3.40%
WHWK	Whitehawk Therapeutics, Inc. Healthcare	Held	817,939	0	$3,746,160	+32.8%	7	$2.27	3.31%
EWTX	Edgewise Therapeutics, Inc. Healthcare	Reduced	83,300	-77,700	$3,384,479	−33.3%	3	$20.07	2.99%
CLYM	Climb Bio, Inc. Healthcare	NEW	249,172	NEW	$3,249,202	NEW	1	$10.33	2.87%
KURA	Kura Oncology, Inc. Healthcare	NEW	290,000	NEW	$3,181,300	NEW	1	$9.43	2.81%
CTMX	CytomX Therapeutics, Inc. Healthcare	Reduced	775,000	-125,000	$2,906,250	−31.3%	2	$5.08	2.57%
AVTX	Avalo Therapeutics, Inc. Healthcare	NEW	150,000	NEW	$2,772,000	NEW	1	$15.81	2.45%
PALI	Palisade Bio, Inc. Healthcare	NEW	1,229,000	NEW	$2,568,610	NEW	1	$1.97	2.27%
SLDB	Solid Biosciences Inc. Healthcare	Reduced	255,959	-511,015	$2,557,030	−53.7%	5	$4.87	2.26%
ANTX	AN2 Therapeutics, Inc. Healthcare	Held	526,315	0	$2,547,364	+41.5%	2	$2.06	2.25%
URGN	UroGen Pharma Ltd. Healthcare	Reduced	69,183	-132,941	$2,545,934	−29.9%	2	$20.05	2.25%
CATX	Perspective Therapeutics, Inc. Healthcare	Reduced	743,958	-182,599	$2,536,896	−34.3%	2	$4.22	2.24%
IDYA	IDEAYA Biosciences, Inc. Healthcare	NEW	67,500	NEW	$2,515,725	NEW	1	$30.61	2.22%
IVA	Inventiva S.A. Healthcare	Reduced	634,800	-110,500	$2,399,544	−42.0%	3	$4.65	2.12%
ALMS	Alumis Inc. Healthcare	Reduced	76,459	-90,500	$2,151,556	−41.5%	2	$25.00	1.90%
OVID	Ovid Therapeutics Inc. Healthcare	Reduced	624,561	-2,193,898	$1,680,069	−73.1%	3	$1.63	1.49%
EPRX	Eupraxia Pharmaceuticals Inc. Healthcare	Reduced	252,175	-408,200	$1,666,876	−65.1%	4	$6.48	1.47%
IBIO	iBio, Inc. Healthcare	NEW	390,147	NEW	$682,757	NEW	1	$1.79	0.60%
TRAW	Traws Pharma, Inc. Healthcare	NEW	786,236	NEW	$660,438	NEW	1	$1.38	0.58%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.