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NEEDHAM INVESTMENT MANAGEMENT LLC — 13F Holdings & Portfolio

CIK 1167212 · latest 13F-HR filed 2026-08-14

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NEEDHAM INVESTMENT MANAGEMENT LLC manages $3.33B in 13F-reported U.S. long-equity assets across 359 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are VICR (5.45%), AIP (4.64%), VSH (3.75%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 13 new positions and exited 13; 123 existing positions rose in reported value and 24 fell.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

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AUM
$3.33B

Long-equity book

Holdings
359

Distinct positions

Period
2026-06-30

Filed 2026-08-14

Q/Q Activity
+13 / −13 / ↑123 / ↓24

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
VICR6.0% · +0%AIP5.7% · -1%VSH4.9% · +4%PDFS4.4% · +2%LASR4.2% · +4%VRT2.9% · +0%VPG2.7% · -3%FORM2.6% · -9%CECO2.6% · +147%ODC2.1% · +1%TDUP2.1% · +10%LINC2.0% · +4%VECO1.9% · -4%TTI1.9% · +68%SMCI1.6% · +15%ELMT1.6% · newMKSI1.5% · -6%UTI1.5% · +10%NVMI1.4% · -4%COHR1.1% · -12%KLAC0.9% · +900%CRAI0.9% · +54%GENI0.9% · +23%VSAT0.9% · 0%PSN0.9% · +36%AMBQ0.9% · +62%CTRI0.9% · +15%BRKR0.8% · +8%ARLO0.8% · +13%NVT0.8% · 0%WTTR0.8% · +13%GRC0.8% · 0%GNRC0.7% · +13%ATRO0.7% · 0%AKAM0.7% · +3%BMI0.6% · +383%TNC0.6% · +6%ECG0.6% · 0%CLH0.6% · +2%ASUR0.6% · +1%ASPN0.6% · -28%MTRX0.6% · 0%MYRG0.6% · +1%PLAB0.6% · -3%LTRX0.6% · newENTG0.5% · -13%EVLV0.5% · +146%BWXT0.5% · +48%SOLS0.5% · 0%FELE0.5% · newLPTH0.5% · +92%BSY0.5% · +152%UIS0.5% · 0%UMAC0.5% · +48%MASS0.5% · +47%HII0.5% · +2%LH0.5% · 0%J0.5% · +30%ESOA0.5% · 0%BATRK0.4% · +98%

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 38.1%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Mar 30, 2026.

Assets Under Management
$1.80B
Discretionary
$1.80B
Employees
11
Accounts
5
Address
250 PARK AVE
10TH FLOOR
NEW YORK, NY 10177
Phone
(212) 371-8300
Website
This firm reports 4 disclosure items on its registration.
Name Title / Status Ownership Type
ABBRUZZESE, JAMES, MICHAEL ControlCHIEF COMPLIANCE OFFICER
since Oct 2004
Less than 5%Individual
BARR, JOHN, OLIVER ControlEVP - PORTFOLIO MANAGER
since Jan 2010
Less than 5%Individual
GIANGRASSO, JAMES, WILLIAM ControlCHIEF FINANCIAL OFFICER
since Feb 2011
Less than 5%Individual
NEEDHAM ASSET MANAGEMENT, LLC ControlMEMBER
since May 2006
50–75%Domestic Entity
NEEDHAM, GEORGE, AUSTIN ControlPRESIDENT AND CEO
since Apr 2005
Less than 5%Individual
RETZLER, CHRISTOPHER, JOHN ControlEVP - PORTFOLIO MANAGER
since Jan 2008
Less than 5%Individual
NEEDHAM HOLDINGS, LLC Control
Indirect owner via NEEDHAM ASSET MANAGEMENT, LLC
MEMBER
since May 2006
75% or moreDomestic Entity
NEEDHAM, GEORGE, AUSTIN Control
Indirect owner via THE NEEDHAM GROUP, INC.
SHAREHOLDER
since Dec 2004
General partner, trustee or managerIndividual
THE NEEDHAM GROUP, INC. Control
Indirect owner via NEEDHAM HOLDINGS, LLC
MEMBER
since Dec 2004
75% or moreDomestic Entity
Ownership & leadership changes · 3 filings with changes since Mar 28, 2012

From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.

Mar 27, 2025 filing
  • ChangedBARR, JOHN, OLIVER · title MD/EVP - PORTFOLIO MANAGER → EVP - PORTFOLIO MANAGER
  • ChangedGIANGRASSO, JAMES, WILLIAM · title MANAGING DIRECTOR - CFO, SECRETARY, TREASURER → CHIEF FINANCIAL OFFICER
  • ChangedRETZLER, CHRISTOPHER, JOHN · title MD/EVP - PORTFOLIO MANAGER → EVP - PORTFOLIO MANAGER
Mar 30, 2022 filing
  • ChangedGIANGRASSO, JAMES, WILLIAM · title PRINCIPAL - CFO, SECRETARY, TREASURER → MANAGING DIRECTOR - CFO, SECRETARY, TREASURER
  • ChangedNEEDHAM ASSET MANAGEMENT, LLC · ownership 75% or more → 50–75%
  • ChangedRETZLER, CHRISTOPHER, JOHN · title MANAGING DIRECTOR → MD/EVP - PORTFOLIO MANAGER
Mar 22, 2019 filing
  • ChangedNEEDHAM, GEORGE, AUSTIN · indirect via THE NEEDHAM GROUP, INC.: ownership 25–50% → General partner, trustee or manager
Mar 28, 2012 filing (earliest on record)
  • ListedABBRUZZESE, JAMES, MICHAEL · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • ListedBARR, JOHN, OLIVER · MD/EVP - PORTFOLIO MANAGER · Less than 5% · control person
  • ListedGIANGRASSO, JAMES, WILLIAM · PRINCIPAL - CFO, SECRETARY, TREASURER · Less than 5% · control person
  • ListedNEEDHAM ASSET MANAGEMENT, LLC · MEMBER · 75% or more · control person
  • ListedNEEDHAM HOLDINGS, LLC · MEMBER · 75% or more · indirect via NEEDHAM ASSET MANAGEMENT, LLC · control person
  • ListedNEEDHAM, GEORGE, AUSTIN · PRESIDENT AND CEO · Less than 5% · control person
  • ListedNEEDHAM, GEORGE, AUSTIN · SHAREHOLDER · 25–50% · indirect via THE NEEDHAM GROUP, INC. · control person
  • ListedRETZLER, CHRISTOPHER, JOHN · MANAGING DIRECTOR · Less than 5% · control person
  • ListedTHE NEEDHAM GROUP, INC. · MEMBER · 75% or more · indirect via NEEDHAM HOLDINGS, LLC · control person

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

NEEDHAM INVESTMENT MANAGEMENT LLC Holdings (2026-06-30)

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 VICOR CORP VICR 925815102 $181.2M 5.45% 477,000 SH
2 ARTERIS INC AIP 04302A104 $154.3M 4.64% 3,175,000 SH
3 VISHAY INTERTECHNOLOGY INC VSH 928298108 $124.6M 3.75% 2,317,100 SH
4 PDF SOLUTIONS INC PDFS 693282105 $120.7M 3.63% 1,705,000 SH
5 NLIGHT INC LASR 65487K100 $118.7M 3.57% 1,705,000 SH
6 VERTIV HOLDINGS CO VRT 92537N108 $87.3M 2.63% 260,750 SH
7 VISHAY PRECISION GROUP INC VPG 92835K103 $86.8M 2.61% 579,000 SH
8 CECO ENVIRONMENTAL CORP CECO 125141101 $83.3M 2.50% 917,500 SH
9 OIL DRI CORP AMER ODC 677864100 $70.1M 2.11% 686,000 SH
10 THREDUP INC TDUP 88556E102 $69.7M 2.10% 10,175,000 SH
11 LINCOLN EDL SVCS CORP LINC 533535100 $66.1M 1.99% 1,325,000 SH
12 TETRA TECHNOLOGIES INC DEL TTI 88162F105 $57.7M 1.73% 5,090,900 SH
13 FORMFACTOR INC FORM 346375108 $51.6M 1.55% 322,500 SH
14 UNIVERSAL TECHNICAL INST INC UTI 913915104 $48.3M 1.45% 1,130,000 SH
15 ELMET GROUP CO (THE) ELMT 289395105 $40.4M 1.21% 2,044,400 SH
16 SUPER MICRO COMPUTER INC SMCI 86800U302 $36.7M 1.10% 1,250,000 SH
17 ARTERIS INC AIP 04302A104 $36.6M 1.10% 752,500 SH
18 VEECO INSTRS INC DEL VECO 922417100 $36.0M 1.08% 474,375 SH
19 NOVA LTD NVMI M7516K103 $32.4M 0.97% 59,650 SH
20 CRA INTL INC CRAI 12618T105 $30.7M 0.92% 215,506 SH
21 GENIUS SPORTS LIMITED GENI G3934V109 $29.1M 0.87% 4,800,000 SH
22 SELECT WATER SOLUTIONS INC WTTR 81617J301 $26.0M 0.78% 1,300,000 SH
23 GORMAN RUPP CO GRC 383082104 $25.0M 0.75% 272,500 SH
24 AMBIQ MICRO INC AMBQ 023193105 $24.6M 0.74% 278,990 SH
25 KLA CORP KLAC 482480100 $24.1M 0.73% 80,000 SH
26 COHERENT CORP COHR 19247G107 $23.7M 0.71% 60,000 SH
27 ARLO TECHNOLOGIES INC ARLO 04206A101 $22.8M 0.69% 1,690,000 SH
28 VIASAT INC VSAT 92552V100 $22.5M 0.68% 250,000 SH
29 ASTRONICS CORP ATRO 046433108 $22.1M 0.67% 272,500 SH
30 BADGER METER INC BMI 056525108 $21.5M 0.65% 145,000 SH
31 MKS INC. MKSI 55306N104 $21.5M 0.65% 48,250 SH
32 VISHAY INTERTECHNOLOGY INC VSH 928298108 $21.1M 0.64% 392,900 SH
33 ASURE SOFTWARE INC ASUR 04649U102 $20.9M 0.63% 2,635,000 SH
34 FORMFACTOR INC FORM 346375108 $20.8M 0.63% 130,000 SH
35 CENTURI HOLDINGS INC CTRI 155923105 $20.1M 0.60% 665,000 SH
36 MATRIX SVC CO MTRX 576853105 $19.7M 0.59% 1,435,000 SH
37 MYR GROUP INC MYRG 55405W104 $19.5M 0.59% 39,000 SH
38 AKAMAI TECHNOLOGIES INC AKAM 00971T101 $19.0M 0.57% 160,500 SH
39 EVERUS CONSTR GROUP ECG 300426103 $18.9M 0.57% 114,000 SH
40 BRUKER CORP BRKR 116794108 $18.7M 0.56% 311,000 SH
41 NVENT ELEC PLC NVT G6700G107 $18.2M 0.55% 107,500 SH
42 EVOLV TECHNOLOGIES HLDNGS IN EVLV 30049H102 $17.8M 0.54% 3,075,000 SH
43 GENERAC HLDGS INC GNRC 368736104 $17.4M 0.52% 59,500 SH
44 BWX TECHNOLOGIES INC BWXT 05605H100 $16.1M 0.48% 82,500 SH
45 LIGHTPATH TECHNOLOGIES INC LPTH 532257805 $15.7M 0.47% 959,000 SH
46 PDF SOLUTIONS INC PDFS 693282105 $15.6M 0.47% 220,000 SH
47 ENERGY SERVICES OF AMER CORP ESOA 29271Q103 $15.5M 0.47% 800,000 SH
48 JACOBS SOLUTIONS INC J 46982L108 $14.5M 0.44% 115,000 SH
49 UNISYS CORP UIS 909214306 $14.4M 0.43% 3,925,000 SH
50 LANTRONIX INC LTRX 516548203 $14.1M 0.42% 2,400,000 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $3.33B 359 0000919574-26-005153
2026-03-31 2026-05-15 $1.96B 348 0000919574-26-003133
2025-12-31 2026-02-17 $1.58B 322 0000919574-26-000997
2025-09-30 2025-11-14 $1.43B 315 0000919574-25-006767
Filer Information
Address
250 PARK AVENUE, 10TH FLOOR
NEW YORK, NY 10177
Phone
(212) 705-0404
Filing Manager
NEEDHAM INVESTMENT MANAGEMENT LLC
NEW YORK, NY
Signatory
James W. Giangrasso
Chief Financial Officer