ESSEX INVESTMENT MANAGEMENT CO LLC

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CIK 201772

13F portfolio (2026-Q1)

$632M

Positions

305

Implied 1Y CAGR

modeled · as filed

Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.

Implied return what this book implies · modeled, not advice methodology →

Open in PORT →

As filed = each book applied at its quarter-end (what the reported book did) · As copyable = applied at its statutory 45-day filing deadline (what a 13F follower could have earned).

Computing…

Hypothetical modeled performance constructed with hindsight — not actual results, and not indicative of future results. See the Disclaimer.

Exposures · what this manager owns, by sector & size (2026-Q1)

Holdings

305

Top 5

11.3%

Top 10

19.9%

Effective N

103.2

HHI

0.010

This quarter

28 new · 0 exit →

By sector

Information Technology29.7%

Industrials23.6%

Health Care21.2%

Consumer Discretionary6.9%

Financials5.0%

Materials3.2%

Communication Services3.2%

Energy3.0%

Other4.2%

By market cap

Small ($300M–2B)29.4%

Mid ($2–10B)29.3%

Large ($10–200B)17.3%

Unknown9.2%

Micro (<$300M)8.7%

Mega (>$200B)6.1%

By region

North America93.8%

Middle East3.2%

Other2.1%

Europe0.9%

By industry group GICS — finer than sector

Industry group	Weight	Names
Pharmaceuticals & Biotechnology	13.69%	24
Technology Hardware & Equipment	9.64%	29
Machinery	8.33%	28
Semiconductors & Semiconductor Equipment	8.27%	22
Construction & Engineering	6.42%	9
Software	6.40%	19
Health Care Equipment & Supplies	6.13%	14
Aerospace & Defense	5.06%	6
Oil, Gas & Consumable Fuels	2.99%	11
Diversified Consumer Services	2.63%	3
Diversified Telecommunication Services	2.52%	3
Software & IT Services	2.43%	13
Electrical Equipment & Components	2.42%	3
Professional Services	2.36%	6
Unclassified	2.08%	18
Capital Markets	1.98%	5
Insurance	1.96%	5
Metals & Mining	1.74%	9
Automobiles & Components	1.70%	9
Specialty Retail	1.46%	5
Commercial Services & Supplies	1.37%	7
Chemicals	1.27%	10
Banks	1.07%	4
Leisure Products	1.03%	3
Food Products	0.87%	2
Health Care Providers & Services	0.81%	2
Utilities	0.66%	12
Life Sciences Tools & Services	0.60%	3
Communications Equipment	0.57%	2
Entertainment	0.35%	1
Media & Entertainment	0.29%	2
Agricultural Products	0.25%	1
Beverages	0.21%	3
Construction Materials	0.17%	2
Food & Staples Retailing	0.13%	1
Distributors	0.05%	2
Marine	0.03%	1
Household Durables	0.02%	1
Hotels, Restaurants & Leisure	0.02%	1
Tobacco	0.01%	1
Road & Rail	0.01%	2
Airlines	0.00%	1

Top holdings

#	Ticker	Name	Sector	Weight
1	TSEM	Tower Semiconductor Ltd	Information Technology	3.22%
2	LINC	LINCOLN EDUCATIONAL SERVICES CORP	Consumer Discretionary	2.29%
3	STRL	STERLING INFRASTRUCTURE, INC.	Industrials	2.07%
4	KNSA	Kiniksa Pharmaceuticals International, plc	Health Care	1.90%
5	LGND	LIGAND PHARMACEUTICALS INC	Health Care	1.85%
6	DRS	Leonardo DRS, Inc.	Industrials	1.84%
7	KTOS	KRATOS DEFENSE & SECURITY SOLUTIONS, INC.	Industrials	1.77%
8	GSAT	Globalstar, Inc.	Communication Services	1.74%
9	INSM	INSMED Inc	Health Care	1.62%
10	GHM	GRAHAM CORP	Industrials	1.60%

288/305 names classified · sector 97.9% of weight · industry 97.9% · mkt cap 90.8%; unclassified names shown, never dropped.

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

top 5/sector, rest → “Other” · 52 quarters

Information TechnologyAAPL, MSFT, PANW, TSEM, FSLR · other

Health CareGILD, VRTX, BIIB, BMY, TNDM · other

IndustrialsSTRL, BABA, KTOS, DRS, JBLU · other

Consumer DiscretionaryAMZN, HD, ASPN, SBUX, LINC · other

FinancialsGS, MS, HCI, JPM, WT · other

MaterialsAEM, NEM, ALB, FCX, MP · other

EnergySLB, EOG, BP, HAL, DVN · other

Communication ServicesDIS, GOOG, META, NFLX, GSAT · other

Consumer StaplesPEP, KO, NGVC, MAMA, BYND · other

UtilitiesLNG, NEE, TRGP, BEPC, SPRU · other

Real EstateIIPR, MMI, OUT, MPT, WY · other

UnclassifiedCELGENE CORP, BARRICK GOLD CORP, GOOGLE INC, VIVINT SOLAR INC., U S AIRWAYS GROUP INC · other

Sector is classified on each name's CURRENT fundamentals, not point-in-time — apparent sector drift can reflect the market re-rating a holding, not a manager trade. 13F is a lagged quarterly snapshot of long positions in US-listed securities only — foreign companies held via a US listing or ADR ARE included, but shares listed only on non-US exchanges (plus shorts, options and cash) are not. Latest quarter: 97.9% of the book is sector-classified (unclassified names shown, never dropped).

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

holdings, colored by sector (204 classified)ESSEX INVESTMENT MANAGEMENT CO LLC centroid (Small Core)

IndustrialsInformation TechnologyHealth CareConsumer DiscretionaryFinancialsEnergyMaterialsConsumer StaplesCommunication ServicesUtilities

Style box summary for ESSEX INVESTMENT MANAGEMENT CO LLC: centroid Small Core. Heaviest cells: Small Growth 28.2%, Small Core 14.6%, Small Value 6.9%.

Classified: 65.7% of book weight (204/303 names) · unclassified 34.3%: TSEM, GSAT, INSM, MIRM, BWAY, AEM, AMPX, ADPT, NVCR, TVTX +89 more. Size: cap 70/20/10 bands; style: value/growth composite on our own metrics — not Morningstar's model.

Contribution holdings-based, any period

No contribution data for this period.

Holdings· 305 positions (2026-Q1) · largest first · Δ vs 2025-Q4

#	Security	Shares	Value	Weight	Δ QoQ
1	TSEMTOWER SEMICONDUCTOR LTD	115,933	$20M	3.2%	TRIM −40%
2	LINCLINCOLN EDL SVCS CORP	355,304	$14M	2.3%	TRIM −9%
3	STRLSTERLING INFRASTRUCTURE INC	32,057	$13M	2.1%	TRIM −28%
4	KNSAKINIKSA PHARMACEUTICALS INTL	249,278	$12M	1.9%	HOLD
5	LGNDLIGAND PHARMACEUTICALS INC	58,460	$12M	1.8%	TRIM −3%
6	DRSLEONARDO DRS INC	261,454	$12M	1.8%	HOLD
7	KTOSKRATOS DEFENSE & SEC SOLUTIO	158,844	$11M	1.8%	TRIM −16%
8	GSATGLOBALSTAR INC	165,665	$11M	1.7%	HOLD
9	INSMINSMED INC	62,676	$10M	1.6%	HOLD
10	GHMGRAHAM CORP	128,294	$10M	1.6%	TRIM −9%
11	MIRMMIRUM PHARMACEUTICALS INC	108,338	$10M	1.6%	TRIM −3%
12	CECOCECO ENVIRONMENTAL CORP	157,246	$9M	1.5%	HOLD
13	HCIHCI GROUP INC	57,634	$9M	1.4%	TRIM −3%
14	AGXARGAN INC	16,098	$9M	1.4%	TRIM −42%
15	AAPLAPPLE INC	32,580	$8M	1.3%	TRIM −7%
16	BWAYBRAINSWAY LTD	618,553	$8M	1.3%	ADD 103%
17	AEMAGNICO EAGLE MINES LTD	38,643	$8M	1.2%	TRIM −3%
18	AMSCAMERICAN SUPERCONDUCTOR CORP	227,558	$8M	1.2%	ADD 6%
19	AMPXAMPRIUS TECHNOLOGIES INC	445,441	$8M	1.2%	TRIM −14%
20	GEVGE VERNOVA INC	8,319	$7M	1.1%	TRIM −3%
21	PRIMPRIMORIS SVCS CORP	48,177	$7M	1.1%	TRIM −6%
22	ADPTADAPTIVE BIOTECHNOLOGIES COR	493,403	$7M	1.1%	TRIM −21%
23	TTITETRA TECHNOLOGIES INC DEL	774,099	$7M	1.0%	HOLD
24	GSGOLDMAN SACHS GROUP INC	7,556	$6M	1.0%	TRIM −13%
25	WLDNWILLDAN GROUP INC	78,292	$6M	0.9%	HOLD
26	COHUCOHU INC	191,885	$6M	0.9%	HOLD
27	MSFTMICROSOFT CORP	15,791	$6M	0.9%	TRIM −10%
28	MIRMIRION TECHNOLOGIES INC	309,110	$6M	0.9%	HOLD
29	AMZNAMAZON COM INC	27,208	$6M	0.9%	TRIM −6%
30	OIIOCEANEERING INTL INC	158,374	$6M	0.9%	HOLD
31	WMSADVANCED DRAIN SYS INC DEL	40,569	$6M	0.9%	TRIM −5%
32	BVSBIOVENTUS INC	603,258	$6M	0.9%	ADD 56%
33	MAMAMAMAS CREATIONS INC	341,657	$5M	0.8%	HOLD
34	BWXTBWX TECHNOLOGIES INC	25,555	$5M	0.8%	TRIM −6%
35	PATKPATRICK INDS INC	46,228	$5M	0.8%	HOLD
36	LYTSLSI INDS INC OHIO	274,082	$5M	0.8%	HOLD
37	ORNORION GROUP HLDGS INC	461,772	$5M	0.8%	ADD 3%
38	NVCRNOVOCURE LTD	452,370	$5M	0.8%	NEW
39	TVTXTRAVERE THERAPEUTICS INC	161,705	$5M	0.8%	HOLD
40	AIPARTERIS INC	290,319	$5M	0.8%	HOLD
41	AVPTAVEPOINT INC	498,482	$5M	0.8%	HOLD
42	ASMLASML HOLDING N V	3,556	$5M	0.7%	TRIM −7%
43	SNDXSYNDAX PHARMACEUTICALS INC	198,985	$5M	0.7%	NEW
44	CXDOCREXENDO INC	742,986	$5M	0.7%	HOLD
45	ECGEVERUS CONSTR GROUP	38,098	$4M	0.7%	HOLD
46	XERSXERIS BIOPHARMA HOLDINGS INC	747,769	$4M	0.7%	HOLD
47	GMEDGLOBUS MED INC	50,004	$4M	0.7%	TRIM −3%
48	AMBAAMBARELLA INC	82,387	$4M	0.7%	HOLD
49	XZOEXZEO GROUP INC	288,111	$4M	0.7%	HOLD
50	FEIMFREQUENCY ELECTRS INC	93,026	$4M	0.7%	HOLD
51	JAZZJAZZ PHARMACEUTICALS PLC	21,778	$4M	0.7%	TRIM −6%
52	PKEPARK AEROSPACE CORP	149,893	$4M	0.6%	HOLD
53	MGMISTRAS GROUP INC	268,567	$4M	0.6%	NEW
54	SMTCSEMTECH CORP	50,644	$4M	0.6%	HOLD
55	IDNINTELLICHECK INC	537,842	$4M	0.6%	ADD 67%
56	MITKMITEK SYS INC	275,602	$4M	0.6%	NEW
57	MRVLMARVELL TECHNOLOGY INC	36,203	$4M	0.6%	NEW
58	DAKTDAKTRONICS INC	182,086	$4M	0.6%	HOLD
59	AGIOAGIOS PHARMACEUTICALS INC	103,177	$3M	0.6%	NEW
60	AMTBAMERANT BANCORP INC	156,818	$3M	0.5%	HOLD
61	SOPHSOPHIA GENETICS SA	692,809	$3M	0.5%	NEW
62	BKSYBLACKSKY TECHNOLOGY INC	136,104	$3M	0.5%	HOLD
63	GFFGRIFFON CORP	47,076	$3M	0.5%	HOLD
64	ARQTARCUTIS BIOTHERAPEUTICS INC	143,934	$3M	0.5%	HOLD
65	OUSTOUSTER INC	184,585	$3M	0.5%	HOLD
66	EVEREVERQUOTE INC	217,075	$3M	0.5%	TRIM −6%
67	BKRBAKER HUGHES COMPANY	54,682	$3M	0.5%	TRIM −7%
68	DIODDIODES INC	48,869	$3M	0.5%	NEW
69	CRMSALESFORCE INC	17,854	$3M	0.5%	TRIM −6%
70	OCULOCULAR THERAPEUTIX INC	392,718	$3M	0.5%	HOLD
71	APYXAPYX MEDICAL CORPORATION	901,398	$3M	0.5%	NEW
72	LQDTLIQUIDITY SVCS INC	108,004	$3M	0.5%	HOLD
73	BGCBGC GROUP INC	336,781	$3M	0.5%	HOLD
74	DLTRDOLLAR TREE INC	29,614	$3M	0.5%	TRIM −7%
75	CONCONCENTRA GROUP HOLDINGS PAR	149,625	$3M	0.5%	TRIM −7%
76	PEGAPEGASYSTEMS INC	74,445	$3M	0.5%	TRIM −6%
77	GWREGUIDEWIRE SOFTWARE INC	21,153	$3M	0.5%	TRIM −6%
78	RSKDRISKIFIED LTD	803,032	$3M	0.5%	NEW
79	THRMGENTHERM INC	113,138	$3M	0.5%	HOLD
80	CMCOCOLUMBUS MCKINNON CORP N Y	211,707	$3M	0.5%	HOLD
81	DCBODOCEBO INC	172,367	$3M	0.5%	ADD 71%
82	MASS908 DEVICES INC	491,221	$3M	0.5%	HOLD
83	VREXVAREX IMAGING CORP	279,551	$3M	0.5%	HOLD
84	LQDALIQUIDIA CORPORATION	78,171	$3M	0.5%	NEW
85	STXSSTEREOTAXIS INC	1,590,101	$3M	0.5%	HOLD
86	JOUTJOHNSON OUTDOORS INC	62,864	$3M	0.5%	NEW
87	NPCENEUROPACE INC	217,738	$3M	0.5%	HOLD
88	RAILFREIGHTCAR AMER INC	352,343	$3M	0.4%	HOLD
89	INFUINFUSYSTEM HLDGS INC	299,332	$3M	0.4%	HOLD
90	AXSMAXSOME THERAPEUTICS INC.	16,328	$3M	0.4%	TRIM −6%
91	ARLOARLO TECHNOLOGIES INC	192,504	$3M	0.4%	HOLD
92	INVEIDENTIV INC	736,608	$3M	0.4%	HOLD
93	SIBNSI-BONE INC	212,488	$3M	0.4%	HOLD
94	TRMBTRIMBLE INC	40,964	$3M	0.4%	TRIM −6%
95	EVREVERCORE INC	8,939	$3M	0.4%	HOLD
96	XPROEXPRO GROUP HOLDINGS NV	150,315	$3M	0.4%	HOLD
97	CCLDCARECLOUD INC	697,836	$3M	0.4%	HOLD
98	MTDRMATADOR RES CO	39,998	$3M	0.4%	ADD 2%
99	NOVTNOVANTA INC	20,703	$2M	0.4%	HOLD
100	ONTMONTROSE ENVIRONMENTAL GROUP	111,473	$2M	0.4%	HOLD
101	PAYPAYMENTUS HOLDINGS INC	94,842	$2M	0.4%	HOLD
102	EXTREXTREME NETWORKS INC	158,032	$2M	0.4%	HOLD
103	LNGCheniere Energy, Inc	8,113	$2M	0.4%	HOLD
104	DISDISNEY WALT CO	22,806	$2M	0.3%	TRIM −3%
105	LPTHLIGHTPATH TECHNOLOGIES INC	216,531	$2M	0.3%	ADD 429%
106	WKWORKIVA INC	36,333	$2M	0.3%	TRIM −8%
107	RVSBRIVERVIEW BANCORP INC	390,295	$2M	0.3%	ADD 3%
108	CODACODA OCTOPUS GROUP INC	189,640	$2M	0.3%	ADD 714%
109	RDVTRED VIOLET INC	60,942	$2M	0.3%	HOLD
110	LAWCS DISCO INC	539,314	$2M	0.3%	HOLD
111	RPIDRAPID MICRO BIOSYSTEMS INC	883,931	$2M	0.3%	ADD 1318%
112	ZETAZETA GLOBAL HOLDINGS CORP	123,233	$2M	0.3%	HOLD
113	OSGOCTAVE SPECIALTY GROUP INC	418,203	$2M	0.3%	HOLD
114	GENCGENCOR INDS INC	129,563	$2M	0.3%	ADD 3%
115	BDSXBIODESIX INC	132,086	$2M	0.3%	NEW
116	CURICURIOSITYSTREAM INC	620,879	$2M	0.3%	HOLD
117	LGCYLEGACY ED INC	143,439	$2M	0.3%	NEW
118	LTRXLANTRONIX INC	342,489	$2M	0.3%	NEW
119	EYPTEYEPOINT INC	127,213	$2M	0.3%	HOLD
120	CRGOFREIGHTOS LTD	997,708	$2M	0.3%	ADD 61%
121	ZSZSCALER INC	11,412	$2M	0.3%	TRIM −7%
122	CTVACORTEVA INC	18,668	$2M	0.2%	TRIM −2%
123	TEMTEMPUS AI INC	34,355	$2M	0.2%	ADD 27%
124	IBEXIBEX LTD	57,758	$2M	0.2%	HOLD
125	UPWKUPWORK INC	138,204	$2M	0.2%	HOLD
126	ALLTALLOT LTD	226,056	$2M	0.2%	NEW
127	CGNXCOGNEX CORP	30,065	$1M	0.2%	TRIM −17%
128	IIIINFORMATION SVCS GROUP INC	383,400	$1M	0.2%	HOLD
129	BMIBADGER METER INC	9,158	$1M	0.2%	TRIM −2%
130	ENPHENPHASE ENERGY INC	35,440	$1M	0.2%	ADD 47%
131	ERIIENERGY RECOVERY INC	132,322	$1M	0.2%	TRIM −2%
132	BLNDBLEND LABS INC	762,290	$1M	0.2%	HOLD
133	XYLXYLEM INC	10,463	$1M	0.2%	TRIM −3%
134	NXTNEXTPOWER INC	10,250	$1M	0.2%	ADD 23%
135	ONON SEMICONDUCTOR CORP	19,369	$1M	0.2%	ADD 42%
136	CARRCARRIER GLOBAL CORPORATION	20,458	$1M	0.2%	ADD 43%
137	VMIVALMONT INDS INC	2,794	$1M	0.2%	TRIM −28%
138	MTSIMACOM TECH SOLUTIONS HLDGS I	4,919	$1M	0.2%	HOLD
139	IOTSAMSARA INC	33,164	$1M	0.2%	TRIM −10%
140	PAYXPAYCHEX INC	10,934	$1M	0.2%	TRIM −34%
141	INTUINTUIT	2,215	$957,722	0.2%	TRIM −35%
142	BBARRICK MNG CORP	22,975	$937,150	0.1%	TRIM −15%
143	NEENEXTERA ENERGY INC	9,923	$921,648	0.1%	TRIM −35%
144	PWRQUANTA SVCS INC	1,575	$864,707	0.1%	HOLD
145	RIVNRIVIAN AUTOMOTIVE INC	56,567	$851,333	0.1%	TRIM −2%
146	PGPROCTER AND GAMBLE CO	5,865	$847,141	0.1%	TRIM −38%
147	AJGGALLAGHER ARTHUR J & CO	3,746	$811,309	0.1%	HOLD
148	VLTOVERALTO CORP	9,152	$809,220	0.1%	HOLD
149	KOCOCA COLA CO	10,563	$803,316	0.1%	TRIM −26%
150	SFMSPROUTS FMRS MKT INC	10,403	$802,383	0.1%	NEW
151	JPMJPMORGAN CHASE & CO	2,721	$800,409	0.1%	HOLD
152	MLMMARTIN MARIETTA MATLS INC	1,333	$784,710	0.1%	HOLD
153	VLOVALERO ENERGY CORP	3,138	$775,337	0.1%	TRIM −50%
154	AEVAAEVA TECHNOLOGIES INC	58,274	$766,886	0.1%	TRIM −2%
155	APDAIR PRODS & CHEMS INC	2,567	$745,688	0.1%	TRIM −27%
156	FNVFRANCO NEV CORP	2,995	$739,915	0.1%	HOLD
157	LNNLINDSAY CORP	5,927	$705,728	0.1%	NEW
158	IWOISHARES TR	2,208	$692,892	0.1%	ADD 16%
159	YASKAWA ELEC CORP	26,595	$672,021	0.1%	HOLD
160	WPMWHEATON PRECIOUS METALS CORP	4,906	$642,735	0.1%	HOLD
161	MDTMEDTRONIC PLC	7,404	$641,557	0.1%	TRIM −23%
162	SHLSSHOALS TECHNOLOGIES GROUP IN	93,670	$616,349	0.1%	TRIM −2%
163	MRSHMARSH & MCLENNAN COS INC	3,530	$612,279	0.1%	TRIM −9%
164	CLCOLGATE PALMOLIVE CO	6,931	$590,729	0.1%	TRIM −39%
165	JNJJOHNSON & JOHNSON	2,384	$582,745	0.1%	HOLD
166	EMEEMCOR GROUP INC	734	$541,920	0.1%	TRIM −2%
167	MWHSOLV ENERGY INC	17,808	$534,774	0.1%	NEW
168	ETONETON PHARMACEUTICALS INC	20,182	$498,092	0.1%	HOLD
169	AMBQAMBIQ MICRO INC	19,216	$488,279	0.1%	NEW
170	ALFEN NV	46,071	$484,117	0.1%	NEW
171	PEPPEPSICO INC	3,106	$482,331	0.1%	TRIM −42%
172	ACMRACM RESH INC	11,770	$463,150	0.1%	HOLD
173	CAMTCAMTEK LTD	2,943	$446,188	0.1%	HOLD
174	ASYSAMTECH SYS INC	37,816	$441,691	0.1%	HOLD
175	EQNREQUINOR ASA	10,457	$441,285	0.1%	HOLD
176	NEMNEWMONT CORP	4,053	$438,737	0.1%	TRIM −15%
177	SNASNAP ON INC	1,125	$408,623	0.1%	HOLD
178	LOPEGRAND CANYON ED INC	2,300	$391,069	0.1%	HOLD
179	VTIVANGUARD INDEX FDS	1,206	$386,897	0.1%	HOLD
180	AXPAMERICAN EXPRESS CO	1,219	$368,723	0.1%	TRIM −69%
181	FLNCFLUENCE ENERGY INC	25,576	$351,926	0.1%	TRIM −34%
182	ESOAENERGY SVCS ACQUISITION CORP	26,088	$342,535	0.1%	HOLD
183	STRTSTRATTEC SEC CORP	4,207	$329,576	0.1%	HOLD
184	VZVERIZON COMMUNICATIONS INC	6,546	$328,609	0.1%	TRIM −51%
185	ACLSAXCELIS TECHNOLOGIES INC	3,350	$311,818	0.0%	HOLD
186	OPXSOPTEX SYS HLDGS INC	23,126	$305,841	0.0%	HOLD
187	SITMSITIME CORP	850	$293,548	0.0%	HOLD
188	GEGE AEROSPACE	1,034	$293,418	0.0%	TRIM −2%
189	NVSNOVARTIS AG	1,875	$286,406	0.0%	TRIM −32%
190	PPIHPERMA-PIPE INTL HLDGS INC	9,526	$283,970	0.0%	HOLD
191	CPSHCPS TECHNOLOGIES CORP	74,114	$277,186	0.0%	HOLD
192	DUKDUKE ENERGY CORP NEW	2,105	$275,629	0.0%	HOLD
193	BYDDYBYD CO LTD ADR ISIN US05606L1008	20,199	$275,312	0.0%	TRIM −2%
194	OSSONE STOP SYS INC	35,534	$268,992	0.0%	TRIM −49%
195	ADMARCHER DANIELS MIDLAND CO	3,676	$267,208	0.0%	HOLD
196	SOSOUTHERN CO	2,367	$228,463	0.0%	HOLD
197	TSLATESLA INC	573	$213,013	0.0%	ADD 22%
198	XOMEXXON MOBIL CORP	1,245	$211,227	0.0%	HOLD
199	CVGICOMMERCIAL VEH GROUP INC	59,834	$204,034	0.0%	NEW
200	NEUROONE MED TECHNOLOGIES CO	261,953	$203,407	0.0%	ADD 39%

showing the top 200 by weight

Position trends· top 15 holdings · shares held over 6 quarters

green added · red trimmed

Security

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

TSEMTOWER SEMICONDUCTOR LTD

183K

173K

195K

196K

193K

116K

$20M

LINCLINCOLN EDL SVCS CORP

400K

387K

385K

397K

389K

355K

$14M

STRLSTERLING INFRASTRUCTURE INC

38K

54K

53K

46K

45K

32K

$13M

KNSAKINIKSA PHARMACEUTICALS INTL

174K

173K

171K

247K

251K

249K

$12M

LGNDLIGAND PHARMACEUTICALS INC

65K

62K

61K

60K

58K

$12M

DRSLEONARDO DRS INC

258K

256K

254K

263K

257K

261K

$12M

KTOSKRATOS DEFENSE & SEC SOLUTIO

368K

355K

350K

244K

190K

159K

$11M

GSATGLOBALSTAR INC

—

194K

167K

166K

$11M

INSMINSMED INC

67K

66K

87K

62K

63K

$10M

GHMGRAHAM CORP

141K

140K

139K

144K

141K

128K

$10M

MIRMMIRUM PHARMACEUTICALS INC

—

113K

111K

108K

$10M

CECOCECO ENVIRONMENTAL CORP

155K

154K

153K

158K

154K

157K

$9M

HCIHCI GROUP INC

82K

78K

60K

59K

58K

$9M

AGXARGAN INC

36K

27K

28K

16K

$9M

AAPLAPPLE INC

42K

38K

37K

36K

35K

33K

$8M

Shares reported each quarter by the largest current holdings. Green = added vs the prior filing of that name, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

☆ESSEX INVESTMENT MANAGEMENT CO LLC

Implied return what this book implies · modeled, not advice methodology →

Exposures · what this manager owns, by sector & size (2026-Q1)

By sector

By market cap

By region

By industry group GICS — finer than sector

Top holdings

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

Contribution holdings-based, any period

Holdings· 305 positions (2026-Q1) · largest first · Δ vs 2025-Q4

Position trends· top 15 holdings · shares held over 6 quarters

Related· where to look next

ESSEX INVESTMENT MANAGEMENT CO LLC