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4D Advisors, LLC — 13F Holdings & Portfolio

CIK 1938268 · latest 13F-HR filed 2026-08-14

Backtest portfolio

4D Advisors, LLC manages $260.3M in 13F-reported U.S. long-equity assets across 37 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are KNX (5.98%), JBHT (4.89%), ARCB (4.69%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 18 new positions and exited 15; 12 existing positions rose in reported value and 6 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
$260.3M

Long-equity book

Holdings
37

Distinct positions

Period
2026-06-30

Filed 2026-08-14

Q/Q Activity
+18 / −15 / ↑12 / ↓6

vs 2026-03-31

Portfolio charts

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

Portfolio map

Q2 26
KNX6.0% · +208%JBHT4.9% · +10%ARCB4.7% · newAXON4.3% · +100%CLH4.0% · newTFII3.9% · newCVLG3.8% · +67%LLY3.5% · newFND3.4% · newAPEI3.4% · +10%COHU3.3% · -38%FSS3.2% · +30%CWST3.2% · +31%AEIS2.9% · +33%FTAI2.9% · newVEEV2.7% · newSDRL2.7% · newRSG2.7% · newMYRG2.4% · -17%GWRE2.4% · newCNQ2.3% · newCACI2.2% · +127%ALGN2.1% · newRNGR2.0% · newLSTR2.0% · newATEN1.9% · newBOOT1.9% · +50%ONTO1.9% · -57%MKSI1.9% · newFANG1.7% · +1658%MPWR1.6% · -25%MU1.6% · newFIX1.5% · -50%TPB1.5% · -31%VECO1.5% · newICHR1.3% · -70%KLIC1.2% · -62%

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 = 41.8%

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

Firm Profile & Key People
Assets Under Management
$315.6M
Discretionary
$315.6M
Employees
3
Accounts
1
Address
1801 SOUTH CATALINA BLVD
#306
REDONDO BEACH, CA 90277
Phone
(310) 346-9928
Website
Name Title / Status Ownership Type
GRAEBER, KURT, F ControlMANAGING MEMBER75% or moreIndividual
WILLIAMS, KEITH, BERNARD ControlCHIEF COMPLIANCE OFFICER, CHIEF FINANCIAL OFFICERLess than 5%Individual

Quarter-over-quarter changes

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

4D Advisors, 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 KNIGHT-SWIFT TRANSN HLDGS IN KNX 499049104 $15.6M 5.98% 200,000 SH
2 HUNT J B TRANS SVCS INC JBHT 445658107 $12.7M 4.89% 44,000 SH
3 ARCBEST CORP ARCB 03937C105 $12.2M 4.69% 85,000 SH
4 AXON ENTERPRISE INC AXON 05464C101 $11.2M 4.31% 20,000 SH
5 CLEAN HARBORS INC CLH 184496107 $10.5M 4.02% 35,000 SH
6 TFI INTERNATIONAL INC TFII 87241L109 $10.0M 3.86% 70,000 SH
7 COVENANT LOGISTICS GROUP INC CVLG 22284P105 $9.9M 3.82% 225,000 SH
8 ELI LILLY & CO LLY 532457108 $9.0M 3.46% 7,500 SH
9 FLOOR & DECOR HLDGS INC FND 339750101 $8.9M 3.42% 150,000 SH
10 AMERICAN PUB ED INC APEI 02913V103 $8.9M 3.40% 165,000 SH
11 COHU INC COHU 192576106 $8.5M 3.27% 115,000 SH
12 FEDERAL SIGNAL CORP FSS 313855108 $8.4M 3.21% 65,000 SH
13 CASELLA WASTE SYS INC CWST 147448104 $8.2M 3.17% 85,000 SH
14 ADVANCED ENERGY INDS AEIS 007973100 $7.5M 2.86% 20,000 SH
15 FTAI AVIATION LTD FTAI G3730V105 $7.4M 2.86% 27,500 SH
16 VEEVA SYS INC VEEV 922475108 $7.1M 2.73% 40,000 SH
17 SEADRILL LTD SDRL G7997W102 $7.0M 2.69% 185,000 SH
18 REPUBLIC SVCS INC RSG 760759100 $6.9M 2.66% 32,500 SH
19 MYR GROUP INC MYRG 55405W104 $6.3M 2.40% 12,500 SH
20 GUIDEWIRE SOFTWARE INC GWRE 40171V100 $6.2M 2.36% 50,000 SH
21 CANADIAN NAT RES LTD MED TER CNQ 136385101 $5.9M 2.28% 150,000 SH
22 CACI INTL INC CACI 127190304 $5.8M 2.22% 12,500 SH
23 ALIGN TECHNOLOGY INC ALGN 016255101 $5.6M 2.14% 33,000 SH
24 RANGER ENERGY SVCS INC RNGR 75282U104 $5.2M 2.00% 325,000 SH
25 LANDSTAR SYS INC LSTR 515098101 $5.2M 1.99% 25,000 SH
26 A10 NETWORKS INC ATEN 002121101 $5.0M 1.94% 135,000 SH
27 BOOT BARN HLDGS INC BOOT 099406100 $4.9M 1.89% 30,000 SH
28 ONTO INNOVATION INC ONTO 683344105 $4.9M 1.89% 13,000 SH
29 MKS INC. MKSI 55306N104 $4.9M 1.88% 11,000 SH
30 DIAMONDBACK ENERGY INC FANG 25278X109 $4.4M 1.69% 25,000 SH
31 MONOLITHIC PWR SYS INC MPWR 609839105 $4.1M 1.59% 3,000 SH
32 MICRON TECHNOLOGY INC MU 595112103 $4.0M 1.55% 3,500 SH
33 COMFORT SYS USA INC FIX 199908104 $4.0M 1.52% 2,000 SH
34 TURNING PT BRANDS INC TPB 90041L105 $3.8M 1.47% 45,000 SH
35 VEECO INSTRS INC DEL VECO 922417100 $3.8M 1.46% 50,000 SH
36 ICHOR HOLDINGS ICHR G4740B105 $3.4M 1.29% 30,000 SH
37 KULICKE & SOFFA INDS INC KLIC 501242101 $3.0M 1.16% 22,500 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-14 $260.3M 37 0001938268-26-000005
2026-03-31 2026-05-15 $157.8M 34 0001938268-26-000003
2025-12-31 2026-02-17 $182.5M 37 0001938268-26-000002
2025-09-30 2025-11-14 $187.8M 33 0001938268-25-000003
Filer Information
Address
1801 SOUTH CATALINA AVE.
#306
REDONDO BEACH, CA 90277
Phone
(310) 936-5316
Filing Manager
4D Advisors, LLC
REDONDO BEACH, CA
Signatory
Keith Williams
CCO