Filed: 5/12/2023ACC: 0001085146-23-002316
📋 What this filing means
WESTFIELD CAPITAL MANAGEMENT CO LP filed this quarterly 13F‑HR report disclosing 222 equity positions with a total reported market value of $14.15B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
222
Positions
$14.15B
Total AUM (reported)
141.72M
Total Shares
Allocation by class
COM$10.51B74.3%
CL A$1.02B7.2%
SHS$591.39M4.2%
COM CL A$480.56M3.4%
SPONSORED ADR$434.76M3.1%
CAP STK CL A$327.78M2.3%
COM NEW$327.41M2.3%
Portfolio Concentration
Top 3$1.23B8.7%
4–10$1.73B12.2%
11–25$2.20B15.6%
Rest$9.00B63.6%
Top 3 weight
8.7%
Top 10 weight
20.9%
Voting Authority Distribution
Total shares with voting rights: 141.72M
Sole
Full voting authority
119.64M
shares
% of voting shares84.4%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
22.09M
shares
% of voting shares15.6%
Investment Discretion (by position count)
Sole222
Shared0
Other0
Dominant voting typeSole · 84.4% of voting shares
Institutional Holdings222
Rows:
APPLE INC
SOLEShares2.95M
TypeSH
Market value$486.50M
3.44%
Sole
2.57M
Shared
0.00
None
377.38K
MICROSOFT CORP
SOLEShares1.40M
TypeSH
Market value$402.82M
2.85%
Sole
1.19M
Shared
0.00
None
208.08K
ASCENDIS PHARMA A/S
SOLEShares3.15M
TypeSH
Market value$337.33M
2.38%
Sole
2.78M
Shared
0.00
None
370.61K
ALPHABET INC
SOLEShares3.16M
TypeSH
Market value$327.78M
2.32%
Sole
2.78M
Shared
0.00
None
379.70K
ICON PLC
SOLEShares1.37M
TypeSH
Market value$291.67M
2.06%
Sole
1.15M
Shared
0.00
None
210.82K
TRANSDIGM GROUP INC
SOLEShares371.15K
TypeSH
Market value$273.56M
1.93%
Sole
309.41K
Shared
0.00
None
61.74K
VISA INC
SOLEShares1.04M
TypeSH
Market value$234.69M
1.66%
Sole
896.28K
Shared
0.00
None
144.66K
UNITEDHEALTH GROUP INC
SOLEShares442.37K
TypeSH
Market value$209.06M
1.48%
Sole
383.86K
Shared
0.00
None
58.51K
AMAZON COM INC
SOLEShares1.92M
TypeSH
Market value$198.34M
1.40%
Sole
1.68M
Shared
0.00
None
243.35K
CHIPOTLE MEXICAN GRILL INC
SOLEShares112.07K
TypeSH
Market value$191.45M
1.35%
Sole
91.21K
Shared
0.00
None
20.86K
BIO RAD LABS INC
SOLEShares385.66K
TypeSH
Market value$184.74M
1.31%
Sole
343.43K
Shared
0.00
None
42.23K
FORTINET INC
SOLEShares2.75M
TypeSH
Market value$182.68M
1.29%
Sole
2.22M
Shared
0.00
None
529.76K
DEXCOM INC
SOLEShares1.57M
TypeSH
Market value$182.46M
1.29%
Sole
1.24M
Shared
0.00
None
327.15K
AMETEK INC
SOLEShares1.10M
TypeSH
Market value$159.40M
1.13%
Sole
887.60K
Shared
0.00
None
209.25K
SERVICENOW INC
SOLEShares317.29K
TypeSH
Market value$147.45M
1.04%
Sole
276.87K
Shared
0.00
None
40.42K
HUBSPOT INC
SOLEShares339.82K
TypeSH
Market value$145.70M
1.03%
Sole
291.09K
Shared
0.00
None
48.73K
WESCO INTL INC
SOLEShares936.29K
TypeSH
Market value$144.69M
1.02%
Sole
767.26K
Shared
0.00
None
169.02K
ENCORE WIRE CORP
SOLEShares751.89K
TypeSH
Market value$139.35M
0.98%
Sole
657K
Shared
0.00
None
94.88K
SAIA INC
SOLEShares501.67K
TypeSH
Market value$136.49M
0.96%
Sole
442.15K
Shared
0.00
None
59.52K
LILLY ELI & CO
SOLEShares387.56K
TypeSH
Market value$133.10M
0.94%
Sole
329.19K
Shared
0.00
None
58.38K
NVIDIA CORPORATION
SOLEShares473.80K
TypeSH
Market value$131.61M
0.93%
Sole
417.39K
Shared
0.00
None
56.41K
SALESFORCE INC
SOLEShares655.88K
TypeSH
Market value$131.03M
0.93%
Sole
569.87K
Shared
0.00
None
86.01K
TELEDYNE TECHNOLOGIES INC
SOLEShares288.24K
TypeSH
Market value$128.95M
0.91%
Sole
243.04K
Shared
0.00
None
45.20K
HOME DEPOT INC
SOLEShares432.01K
TypeSH
Market value$127.50M
0.90%
Sole
368.42K
Shared
0.00
None
63.59K
LULULEMON ATHLETICA INC
SOLEShares344.95K
TypeSH
Market value$125.63M
0.89%
Sole
266.49K
Shared
0.00
None
78.47K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
APPLE INCSOLE | COM | 2.95M | SH | $486.50M 3.44% | 2.57M | 0.00 | 377.38K |
MICROSOFT CORPSOLE | COM | 1.40M | SH | $402.82M 2.85% | 1.19M | 0.00 | 208.08K |
ASCENDIS PHARMA A/SSOLE | SPONSORED ADR | 3.15M | SH | $337.33M 2.38% | 2.78M | 0.00 | 370.61K |
ALPHABET INCSOLE | CAP STK CL A | 3.16M | SH | $327.78M 2.32% | 2.78M | 0.00 | 379.70K |
ICON PLCSOLE | SHS | 1.37M | SH | $291.67M 2.06% | 1.15M | 0.00 | 210.82K |
TRANSDIGM GROUP INCSOLE | COM | 371.15K | SH | $273.56M 1.93% | 309.41K | 0.00 | 61.74K |
VISA INCSOLE | COM CL A | 1.04M | SH | $234.69M 1.66% | 896.28K | 0.00 | 144.66K |
UNITEDHEALTH GROUP INCSOLE | COM | 442.37K | SH | $209.06M 1.48% | 383.86K | 0.00 | 58.51K |
AMAZON COM INCSOLE | COM | 1.92M | SH | $198.34M 1.40% | 1.68M | 0.00 | 243.35K |
CHIPOTLE MEXICAN GRILL INCSOLE | COM | 112.07K | SH | $191.45M 1.35% | 91.21K | 0.00 | 20.86K |
BIO RAD LABS INCSOLE | CL A | 385.66K | SH | $184.74M 1.31% | 343.43K | 0.00 | 42.23K |
FORTINET INCSOLE | COM | 2.75M | SH | $182.68M 1.29% | 2.22M | 0.00 | 529.76K |
DEXCOM INCSOLE | COM | 1.57M | SH | $182.46M 1.29% | 1.24M | 0.00 | 327.15K |
AMETEK INCSOLE | COM | 1.10M | SH | $159.40M 1.13% | 887.60K | 0.00 | 209.25K |
SERVICENOW INCSOLE | COM | 317.29K | SH | $147.45M 1.04% | 276.87K | 0.00 | 40.42K |
HUBSPOT INCSOLE | COM | 339.82K | SH | $145.70M 1.03% | 291.09K | 0.00 | 48.73K |
WESCO INTL INCSOLE | COM | 936.29K | SH | $144.69M 1.02% | 767.26K | 0.00 | 169.02K |
ENCORE WIRE CORPSOLE | COM | 751.89K | SH | $139.35M 0.98% | 657K | 0.00 | 94.88K |
SAIA INCSOLE | COM | 501.67K | SH | $136.49M 0.96% | 442.15K | 0.00 | 59.52K |
LILLY ELI & COSOLE | COM | 387.56K | SH | $133.10M 0.94% | 329.19K | 0.00 | 58.38K |
NVIDIA CORPORATIONSOLE | COM | 473.80K | SH | $131.61M 0.93% | 417.39K | 0.00 | 56.41K |
SALESFORCE INCSOLE | COM | 655.88K | SH | $131.03M 0.93% | 569.87K | 0.00 | 86.01K |
TELEDYNE TECHNOLOGIES INCSOLE | COM | 288.24K | SH | $128.95M 0.91% | 243.04K | 0.00 | 45.20K |
HOME DEPOT INCSOLE | COM | 432.01K | SH | $127.50M 0.90% | 368.42K | 0.00 | 63.59K |
LULULEMON ATHLETICA INCSOLE | COM | 344.95K | SH | $125.63M 0.89% | 266.49K | 0.00 | 78.47K |
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