Knott David M Jr

CIK

1892770

Location

SYOSSET, NY

Portfolio Value

Small $182,314,686

Diversification

Diversified

Reports for

Dorset Partners LLC

Filing Date

Global Rank

#6,792 / 8,818 ▼ 57

Top Industry

Biotechnology 45.2%

Period ended 4 months ago

Filed Aug 12, 2026 · 3mo

19 quarters · since Dec 2021

Regulatory profile

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

Holder type

Unknown

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 65.2% of the book (60%+)

Turnover

Low turnover

28.4% over the last four quarters (under 30%)

Horizon

Medium horizon

Value-weighted holding period 10.9 quarters (4 to under 12)

Closest benchmark: the S&P 500 as of 2026-06-30, active share 89.8%; sector active share 64.6% against the combined 13F book's sector weights.

Over time 19 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

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

Top Position

17.8%

+1.6 pts

Top 5

46.8%

+0.9 pts

Top 10

65.2%

+3.1 pts

HHI

710

Diversified+38

Portfolio Trend

19 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Healthcare	54.5%	$99,450,448	45
Financial Services	19.9%	$36,282,565	7
Communication Services	17.8%	$32,408,639	2
Unclassified	5.2%	$9,506,837	5
Technology	1.4%	$2,462,065	7
Energy	0.4%	$686,379	2
Consumer Defensive	0.2%	$436,968	2
Industrials	0.2%	$427,199	4
Real Estate	0.2%	$315,072	2
Consumer Cyclical	0.1%	$203,382	3
Basic Materials	0.1%	$135,132	2

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

16 positions

Ticker	Company	Δ Shares	Shares	Value
CNTB	Connect Biopharma Holdings Ltd	+57,027	444,862	$1,058,771
ARDX	Ardelyx, Inc.	+56,168	263,168	$1,342,156
VSTM	Verastem, Inc.	+51,000	155,000	$592,100
CGEM	Cullinan Therapeutics, Inc.	+44,982	69,182	$1,259,804
HELP	Helus Pharma Inc.	+20,000	370,000	$2,445,700
SNDX	Syndax Pharmaceuticals Inc	+15,245	437,245	$9,558,175
RLMD	Relmada Therapeutics, Inc.	+11,700	451,000	$3,120,920
SLDB	Solid Biosciences Inc.	+9,065	56,208	$561,517
COGT	Cogent Biosciences, Inc.	+7,081	111,081	$4,298,834
TVTX	Travere Therapeutics, Inc.	+6,649	147,282	$8,367,090
RARE	Ultragenyx Pharmaceutical Inc.	+5,000	38,069	$1,271,123
BBIO	BridgeBio Pharma, Inc.	+2,850	92,850	$6,915,468
AGIO	Agios Pharmaceuticals, Inc.	+2,000	95,058	$3,527,602
ALKS	Alkermes plc.	+1,759	121,759	$6,380,171
PTHS	Pelthos Therapeutics Inc.	+1,000	22,073	$623,782
MDGL	Madrigal Pharmaceuticals, Inc.	+1,000	3,000	$1,610,850
No positions match the current search.

Trimmed

Positions the filer reduced

4 positions

Ticker	Company	Δ Shares	Shares	Value
TGTX	Tg Therapeutics, Inc.	−23,162	66,839	$3,672,134
BMY	Bristol Myers Squibb Co	−11,622	2,000	$115,240
JPM	Jpmorgan Chase & Co	−1,379	18,098	$5,924,018
OXY	Occidental Petroleum Corp	−194	469	$22,779
No positions match the current search.

New Positions

Positions the filer opened this quarter

8 positions

Ticker	Company	Shares	Value
CLST	Catalyst Bancorp, Inc.	114,000	$1,882,140
SPRB	Spruce Biosciences, Inc.	20,000	$1,080,000
INSM	INSMED Inc	4,253	$453,454
LBRX	Lb Pharmaceuticals Inc	12,965	$420,779
CDNA	CareDx, Inc.	13,630	$388,455
QTTB	Q32 Bio Inc.	30,412	$387,448
ELVN	Enliven Therapeutics, Inc.	6,183	$313,787
BSX	Boston Scientific Corp	6,000	$256,080
No positions match the current search.

Sold Out

Positions the filer fully exited

10 positions

Ticker	Company	Shares	Value
—		120,000	$2,971,200
—		19,433	$2,231,297
CYTK	Cytokinetics Inc	23,644	$1,558,376
CNTA	Centessa Pharmaceuticals plc	39,000	$1,549,080
ADMA	Adma Biologics, Inc.	60,200	$542,402
EOLS	Evolus, Inc.	99,338	$408,279
LENZ	LENZ Therapeutics, Inc.	33,732	$308,647
DD	DuPont de Nemours, Inc.	3,767	$172,528
JSPR	Jasper Therapeutics, Inc.	160,789	$140,851
MREO	Mereo BioPharma Group plc	300,337	$99,111
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

81 tracked positions · $182,314,686 total · filing declares 86 positions · $189,178,234 · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology

Showing 1–50 of 81 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
GOOG	Alphabet Inc. Communication Services	Held	91,420	0	$32,301,428	+23.2%	19	before history	17.72%
APO	Apollo Global Management, Inc. Financial Services	Held	225,000	0	$26,619,750	+6.2%	13	$66.86	14.60%
SNDX	Syndax Pharmaceuticals Inc Healthcare	Added	437,245	+15,245	$9,558,175	−3.0%	10	$14.82	5.24%
XERS	Xeris Biopharma Holdings, Inc. Healthcare	Held	1,060,000	0	$8,395,200	+36.6%	11	$2.72	4.60%
TVTX	Travere Therapeutics, Inc. Healthcare	Added	147,282	+6,649	$8,367,090	+100.3%	12	$12.18	4.59%
PTGX	Protagonist Therapeutics, Inc Healthcare	Held	63,000	0	$7,722,540	+16.3%	12	$28.54	4.24%
BBIO	BridgeBio Pharma, Inc. Healthcare	Added	92,850	+2,850	$6,915,468	+3.5%	5	$40.02	3.79%
IOVA	Iovance Biotherapeutics, Inc. Healthcare	Held	1,600,000	0	$6,656,000	+18.5%	2	$3.20	3.65%
ALKS	Alkermes plc. Healthcare	Added	121,759	+1,759	$6,380,171	+50.4%	5	$30.27	3.50%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	18,098	-1,379	$5,924,018	+3.4%	19	before history	3.25%
JAAA	Janus Henderson AAA CLO ETF	Held	93,528	0	$4,722,228	+0.2%	12	$50.74	2.59%
COGT	Cogent Biosciences, Inc. Healthcare	Added	111,081	+7,081	$4,298,834	+7.4%	3	$28.71	2.36%
TGTX	Tg Therapeutics, Inc. Healthcare	Reduced	66,839	-23,162	$3,672,134	+22.8%	3	$31.23	2.01%
AGIO	Agios Pharmaceuticals, Inc. Healthcare	Added	95,058	+2,000	$3,527,602	+12.1%	3	$29.67	1.93%
VRDN	Viridian Therapeutics, Inc.\DE Healthcare	Held	181,000	0	$3,324,970	−6.1%	7	$20.80	1.82%
RLMD	Relmada Therapeutics, Inc. Healthcare	Added	451,000	+11,700	$3,120,920	+2.1%	2	$4.79	1.71%
RCUS	Arcus Biosciences, Inc. Healthcare	Held	81,241	0	$2,504,660	+42.7%	6	$11.78	1.37%
HELP	Helus Pharma Inc. Healthcare	Added	370,000	+20,000	$2,445,700	+45.6%	7	$7.14	1.34%
XBI	State Street(R) SPDR(R) S&P(R) Biotech ETF	Held	15,000	0	$2,373,750	+23.9%	11	$107.67	1.30%
RZLT	Rezolute, Inc. Healthcare	Held	370,000	0	$1,924,000	+70.5%	4	$6.57	1.06%
CLST	Catalyst Bancorp, Inc. Financial Services	NEW	114,000	NEW	$1,882,140	NEW	1	$16.12	1.03%
AB	Alliancebernstein Holding L.P. Financial Services	Held	48,000	0	$1,690,560	−5.9%	19	before history	0.93%
MDGL	Madrigal Pharmaceuticals, Inc. Healthcare	Added	3,000	+1,000	$1,610,850	+53.9%	5	$369.38	0.88%
ATRC	AtriCure, Inc. Healthcare	Held	51,400	0	$1,438,172	−1.9%	6	$35.05	0.79%
DCGO	DocGo Inc. Healthcare	Held	2,670,850	0	$1,378,158	−18.0%	19	before history	0.76%
ARDX	Ardelyx, Inc. Healthcare	Added	263,168	+56,168	$1,342,156	+8.2%	2	$6.51	0.74%
RARE	Ultragenyx Pharmaceutical Inc. Healthcare	Added	38,069	+5,000	$1,271,123	+83.5%	6	$32.63	0.70%
CLOZ	Eldridge BBB-B CLO ETF	Held	47,807	0	$1,263,060	+3.0%	12	$26.17	0.69%
CGEM	Cullinan Therapeutics, Inc. Healthcare	Added	69,182	+44,982	$1,259,804	+266.3%	2	$14.15	0.69%
JNJ	Johnson & Johnson Healthcare	Held	4,922	0	$1,250,040	+3.9%	19	before history	0.69%
VERA	Vera Therapeutics, Inc. Healthcare	Held	26,000	0	$1,115,660	+6.7%	6	$26.34	0.61%
OBIO	Orchestra BioMed Holdings, Inc. Healthcare	Held	253,651	0	$1,094,504	+1.5%	5	$3.12	0.60%
SPRB	Spruce Biosciences, Inc. Healthcare	NEW	20,000	NEW	$1,080,000	NEW	1	$55.91	0.59%
CNTB	Connect Biopharma Holdings Ltd Healthcare	Added	444,862	+57,027	$1,058,771	+4.2%	3	$2.37	0.58%
		Held	5,500	0	$1,046,045	+12.6%	5	$136.22	0.57%
BIIB	Biogen Inc. Healthcare	Held	4,000	0	$864,240	+17.9%	4	$153.97	0.47%
PFE	Pfizer Inc Healthcare	Held	32,337	0	$778,674	−14.2%	19	before history	0.43%
AAPL	Apple Inc. Technology	Held	2,494	0	$721,663	+14.0%	19	before history	0.40%
CNQ	CANADIAN NATURAL RESOURCES Ltd Energy	Held	16,800	0	$663,600	−18.9%	19	before history	0.36%
PTHS	Pelthos Therapeutics Inc. Healthcare	Added	22,073	+1,000	$623,782	+40.9%	4	unpriced	0.34%
IBM	International Business Machines Corp Technology	Held	2,142	0	$602,351	+16.0%	14	$133.78	0.33%
MSFT	Microsoft Corp Technology	Held	1,600	0	$596,832	+0.8%	19	before history	0.33%
VSTM	Verastem, Inc. Healthcare	Added	155,000	+51,000	$592,100	+7.4%	2	$5.73	0.32%
KURA	Kura Oncology, Inc. Healthcare	Held	52,767	0	$578,853	+34.9%	4	$7.50	0.32%
SLDB	Solid Biosciences Inc. Healthcare	Added	56,208	+9,065	$561,517	+65.4%	6	$4.70	0.31%
INSM	INSMED Inc Healthcare	NEW	4,253	NEW	$453,454	NEW	1	$121.09	0.25%
LBRX	Lb Pharmaceuticals Inc Healthcare	NEW	12,965	NEW	$420,779	NEW	1	$29.37	0.23%
CDNA	CareDx, Inc. Healthcare	NEW	13,630	NEW	$388,455	NEW	1	$21.77	0.21%
QTTB	Q32 Bio Inc. Healthcare	NEW	30,412	NEW	$387,448	NEW	1	$8.36	0.21%
ELVN	Enliven Therapeutics, Inc. Healthcare	NEW	6,183	NEW	$313,787	NEW	1	$42.45	0.17%

Showing the top 50 of 81 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

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.