Parkman Healthcare Partners LLC

CIK

1777015

Location

STAMFORD, CT

Portfolio Value

Small $958,818,260

Diversification

Diversified

Filing Date

Global Rank

#1,811 / 8,622 ▼ 16 · as of Mar 2026

Top Industry

Biotechnology 37.8%

3Y Alpha vs SPY

-32.2%

Period ended 4 months ago

Filed May 15, 2026 · 3mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+39.9%

SPY

+67.9%

Annualised alpha

-7.0%

Max drawdown

−32.1%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 99% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

89 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

5.3%

+0.6 pts

Top 5

20.4%

+0.9 pts

Top 10

35.1%

+1.9 pts

HHI

215

Diversified+16

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Healthcare	100.0%	$958,818,260	89

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
BCRX	Biocryst Pharmaceuticals Inc	+808,042	1,708,099	$16,261,102
ATEC	Alphatec Holdings, Inc.	+546,582	823,763	$8,962,541
CMPS	COMPASS Pathways plc	+454,939	554,411	$3,065,892
BFLY	Butterfly Network, Inc.	+443,642	544,477	$2,199,687
ABSI	Absci Corp	+406,154	1,864,806	$5,594,418
XENE	Xenon Pharmaceuticals Inc.	+342,851	497,035	$28,902,585
SNDX	Syndax Pharmaceuticals Inc	+327,488	901,511	$21,059,296
AGIO	Agios Pharmaceuticals, Inc.	+303,921	403,525	$13,651,250
PTCT	Ptc Therapeutics, Inc.	+271,185	431,364	$29,388,829
EYPT	EyePoint, Inc.	+266,767	1,354,800	$17,463,372
AMLX	Amylyx Pharmaceuticals, Inc.	+239,698	621,458	$8,638,266
RCUS	Arcus Biosciences, Inc.	+238,672	1,207,274	$26,077,118
OPRX	OptimizeRx Corp	+190,720	729,369	$4,580,437
GPCR	Structure Therapeutics Inc.	+177,093	232,093	$11,186,882
RARE	Ultragenyx Pharmaceutical Inc.	+172,970	235,000	$4,923,250
ASMB	Assembly Biosciences, Inc.	+161,870	411,227	$11,411,549
ADPT	Adaptive Biotechnologies Corp	+150,085	551,815	$1,914,798
ANIP	Ani Pharmaceuticals Inc	+135,575	280,575	$21,576,217
IMNM	Immunome Inc.	+125,675	403,487	$8,824,260
ZBH	Zimmer Biomet Holdings, Inc.	+118,508	269,557	$24,373,343
URGN	UroGen Pharma Ltd.	+106,232	275,000	$4,944,500
CAI	Caris Life Sciences, Inc.	+104,912	229,912	$4,110,826
DXCM	Dexcom Inc	+102,347	689,822	$43,320,821
WAY	Waystar Holding Corp.	+74,035	443,058	$10,682,128
ANNX	Annexon, Inc.	+72,811	674,013	$3,734,032
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
KNSA	Kiniksa Pharmaceuticals International, plc	−406,024	259,184	$12,479,709
VRDN	Viridian Therapeutics, Inc.\DE	−230,140	557,936	$10,913,228
MAZE	Maze Therapeutics, Inc.	−177,422	31,844	$950,543
ADMA	Adma Biologics, Inc.	−117,557	82,443	$742,811
SLDB	Solid Biosciences Inc.	−109,527	308,844	$2,223,676
EWTX	Edgewise Therapeutics, Inc.	−104,862	322,828	$10,169,082
RXST	RxSight, Inc.	−101,666	249,989	$1,539,932
STOK	Stoke Therapeutics, Inc.	−93,636	336,519	$10,957,058
MBX	MBX Biosciences, Inc.	−85,602	800,037	$23,881,104
QDEL	QuidelOrtho Corp	−82,727	101,764	$1,671,982
CVS	CVS HEALTH Corp	−62,906	387,306	$27,816,316
APGE	Apogee Therapeutics, Inc.	−52,383	77,686	$6,538,830
BSX	Boston Scientific Corp	−51,761	448,768	$28,160,192
QURE	uniQure N.V.	−50,540	206,842	$3,381,866
UPB	Upstream Bio, Inc.	−47,776	786,783	$7,081,047
COO	Cooper Companies, Inc.	−35,452	89,883	$6,426,634
NUVL	Nuvalent, Inc.	−30,634	88,078	$9,023,591
MLYS	Mineralys Therapeutics, Inc.	−30,112	380,137	$10,297,911
CSTL	Castle Biosciences Inc	−24,408	126,150	$3,096,982
MCK	Mckesson Corp	−23,679	12,676	$10,969,303
ALNY	Alnylam Pharmaceuticals, Inc.	−20,787	26,916	$8,905,696
NBIX	Neurocrine Biosciences Inc	−15,643	99,069	$13,051,350
WAT	Waters Corp /De/	−15,452	26,447	$7,875,916
THC	Tenet Healthcare Corp	−10,391	50,123	$9,458,711
LIVN	LivaNova PLC	−6,947	403,965	$25,676,015
No positions match the current search.

New Positions

Positions the filer opened this quarter

17 positions

Ticker	Company	Shares	Value
LLY	ELI LILLY & Co	34,616	$31,838,758
QGEN	Qiagen N.V.	500,000	$20,020,000
NVST	Envista Holdings Corp	711,693	$18,055,651
ABBV	AbbVie Inc.	75,000	$16,311,750
ILMN	Illumina, Inc.	110,370	$13,604,206
IDXX	Idexx Laboratories Inc /De	15,000	$8,428,350
ERAS	Erasca, Inc.	406,702	$6,580,438
TNGX	Tango Therapeutics, Inc.	266,127	$5,567,376
IRTC	iRhythm Holdings, Inc.	40,125	$4,735,552
MMED	MiniMed Group, Inc.	317,324	$4,734,474
CARL	Carlsmed, Inc.	521,123	$4,716,163
VIR	Vir Biotechnology, Inc.	500,000	$4,480,000
SUPN	Supernus Pharmaceuticals, Inc.	85,062	$4,396,854
COGT	Cogent Biosciences, Inc.	100,126	$3,853,849
AMRX	Amneal Pharmaceuticals, Inc.	300,752	$3,738,347
DRUG	Bright Minds Biosciences Inc.	40,098	$2,925,951
PLSE	Pulse Biosciences, Inc.	50,125	$1,082,198
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
MASI	Masimo Corp	200,000	$26,012,000
TERN	Terns Pharmaceuticals, Inc.	620,877	$25,083,430
FOLD	AMICUS THERAPEUTICS, INC.	1,487,283	$21,178,909
MTD	Mettler Toledo International Inc/	10,988	$15,319,358
A	Agilent Technologies, Inc.	100,000	$13,607,000
DHR	Danaher Corp /De/	58,889	$13,480,869
UNH	Unitedhealth Group Inc	31,875	$10,522,256
ACLX	Arcellx, Inc.	128,111	$8,352,837
DOCS	Doximity, Inc.	162,276	$7,185,581
BIIB	Biogen Inc.	35,425	$6,234,445
DAWN	Day One Biopharmaceuticals, Inc.	645,544	$6,016,470
TMDX	TransMedics Group, Inc.	45,174	$5,495,417
SDGR	Schrodinger, Inc.	298,939	$5,345,029
VERA	Vera Therapeutics, Inc.	100,564	$5,092,560
PGEN	Precigen, Inc.	1,002,826	$4,191,812
SYRE	Spyre Therapeutics, Inc.	124,485	$4,078,128
MNKD	Mannkind Corp	640,356	$3,630,818
TVTX	Travere Therapeutics, Inc.	86,297	$3,297,408
CERT	Certara, Inc.	348,750	$3,072,487
PTGX	Protagonist Therapeutics, Inc	25,973	$2,268,481
ACHC	Acadia Healthcare Company, Inc.	100,000	$1,419,000
INSP	Inspire Medical Systems, Inc.	15,000	$1,383,450
SENS	Senseonics Holdings, Inc.	206,793	$1,141,497
CRNX	Crinetics Pharmaceuticals, Inc.	22,852	$1,063,760
RPID	Rapid Micro Biosystems, Inc.	354,465	$1,027,948
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

89 tracked positions · $958,818,260 total · filing declares 90 positions · $969,641,007 · as of Mar 31, 2026

All sectors Healthcare

Showing 1–50 of 89 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
SYK	Stryker Corp Healthcare	Added	154,771	+49,299	$50,856,202	+37.2%	5.30%
DXCM	Dexcom Inc Healthcare	Added	689,822	+102,347	$43,320,821	+11.1%	4.52%
KALV	KalVista Pharmaceuticals, Inc. Healthcare	Added	1,835,506	+66,998	$36,948,735	+29.4%	3.85%
PODD	Insulet Corp Healthcare	Added	156,561	+15,701	$32,852,760	−17.9%	3.43%
LLY	ELI LILLY & Co Healthcare	NEW	34,616	NEW	$31,838,758	NEW	3.32%
PTCT	Ptc Therapeutics, Inc. Healthcare	Added	431,364	+271,185	$29,388,829	+141.5%	3.07%
XENE	Xenon Pharmaceuticals Inc. Healthcare	Added	497,035	+342,851	$28,902,585	+318.2%	3.01%
BSX	Boston Scientific Corp Healthcare	Reduced	448,768	-51,761	$28,160,192	−41.0%	2.94%
CVS	CVS HEALTH Corp Healthcare	Reduced	387,306	-62,906	$27,816,316	−22.1%	2.90%
RCUS	Arcus Biosciences, Inc. Healthcare	Added	1,207,274	+238,672	$26,077,118	+13.0%	2.72%
LIVN	LivaNova PLC Healthcare	Reduced	403,965	-6,947	$25,676,015	+1.6%	2.68%
ZBH	Zimmer Biomet Holdings, Inc. Healthcare	Added	269,557	+118,508	$24,373,343	+79.4%	2.54%
MBX	MBX Biosciences, Inc. Healthcare	Reduced	800,037	-85,602	$23,881,104	−14.5%	2.49%
ANIP	Ani Pharmaceuticals Inc Healthcare	Added	280,575	+135,575	$21,576,217	+88.5%	2.25%
SNDX	Syndax Pharmaceuticals Inc Healthcare	Added	901,511	+327,488	$21,059,296	+74.6%	2.20%
QGEN	Qiagen N.V. Healthcare	NEW	500,000	NEW	$20,020,000	NEW	2.09%
NVST	Envista Holdings Corp Healthcare	NEW	711,693	NEW	$18,055,651	NEW	1.88%
EYPT	EyePoint, Inc. Healthcare	Added	1,354,800	+266,767	$17,463,372	−12.1%	1.82%
ABBV	AbbVie Inc. Healthcare	NEW	75,000	NEW	$16,311,750	NEW	1.70%
BCRX	Biocryst Pharmaceuticals Inc Healthcare	Added	1,708,099	+808,042	$16,261,102	+131.6%	1.70%
IQV	Iqvia Holdings Inc. Healthcare	Added	86,702	+51,472	$14,786,159	+86.2%	1.54%
AGIO	Agios Pharmaceuticals, Inc. Healthcare	Added	403,525	+303,921	$13,651,250	+403.5%	1.42%
ILMN	Illumina, Inc. Healthcare	NEW	110,370	NEW	$13,604,206	NEW	1.42%
EW	Edwards Lifesciences Corp Healthcare	Added	167,155	+16,170	$13,385,772	+4.0%	1.40%
NBIX	Neurocrine Biosciences Inc Healthcare	Reduced	99,069	-15,643	$13,051,350	−19.8%	1.36%
KNSA	Kiniksa Pharmaceuticals International, plc Healthcare	Reduced	259,184	-406,024	$12,479,709	−54.5%	1.30%
ASMB	Assembly Biosciences, Inc. Healthcare	Added	411,227	+161,870	$11,411,549	+34.6%	1.19%
GPCR	Structure Therapeutics Inc. Healthcare	Added	232,093	+177,093	$11,186,882	+192.4%	1.17%
MCK	Mckesson Corp Healthcare	Reduced	12,676	-23,679	$10,969,303	−63.2%	1.14%
STOK	Stoke Therapeutics, Inc. Healthcare	Reduced	336,519	-93,636	$10,957,058	−19.7%	1.14%
VRDN	Viridian Therapeutics, Inc.\DE Healthcare	Reduced	557,936	-230,140	$10,913,228	−55.5%	1.14%
WAY	Waystar Holding Corp. Healthcare	Added	443,058	+74,035	$10,682,128	−11.6%	1.11%
MLYS	Mineralys Therapeutics, Inc. Healthcare	Reduced	380,137	-30,112	$10,297,911	−30.8%	1.07%
EWTX	Edgewise Therapeutics, Inc. Healthcare	Reduced	322,828	-104,862	$10,169,082	−4.2%	1.06%
XERS	Xeris Biopharma Holdings, Inc. Healthcare	Added	1,721,264	+29,679	$9,983,331	−24.8%	1.04%
THC	Tenet Healthcare Corp Healthcare	Reduced	50,123	-10,391	$9,458,711	−21.3%	0.99%
AORT	Artivion, Inc. Healthcare	Added	252,014	+33,345	$9,228,752	−7.5%	0.96%
NUVL	Nuvalent, Inc. Healthcare	Reduced	88,078	-30,634	$9,023,591	−24.4%	0.94%
ATEC	Alphatec Holdings, Inc. Healthcare	Added	823,763	+546,582	$8,962,541	+53.7%	0.93%
ALNY	Alnylam Pharmaceuticals, Inc. Healthcare	Reduced	26,916	-20,787	$8,905,696	−53.1%	0.93%
AXGN	Axogen, Inc. Healthcare	Added	268,160	+17,842	$8,884,140	+8.4%	0.93%
IMNM	Immunome Inc. Healthcare	Added	403,487	+125,675	$8,824,260	+47.9%	0.92%
AMLX	Amylyx Pharmaceuticals, Inc. Healthcare	Added	621,458	+239,698	$8,638,266	+87.3%	0.90%
IDXX	Idexx Laboratories Inc /De Healthcare	NEW	15,000	NEW	$8,428,350	NEW	0.88%
WAT	Waters Corp /De/ Healthcare	Reduced	26,447	-15,452	$7,875,916	−50.5%	0.82%
UPB	Upstream Bio, Inc. Healthcare	Reduced	786,783	-47,776	$7,081,047	−68.7%	0.74%
ERAS	Erasca, Inc. Healthcare	NEW	406,702	NEW	$6,580,438	NEW	0.69%
APGE	Apogee Therapeutics, Inc. Healthcare	Reduced	77,686	-52,383	$6,538,830	−33.4%	0.68%
COO	Cooper Companies, Inc. Healthcare	Reduced	89,883	-35,452	$6,426,634	−37.4%	0.67%
ABSI	Absci Corp Healthcare	Added	1,864,806	+406,154	$5,594,418	+9.9%	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.