Filed: 11/12/2024ACC: 0001085146-24-005556
📋 What this filing means
WESTFIELD CAPITAL MANAGEMENT CO LP filed this quarterly 13F‑HR report disclosing 247 equity positions with a total reported market value of $22.13B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
247
Positions
$22.13B
Total AUM (reported)
238.17M
Total Shares
Allocation by class
COM$14.50B65.5%
CL A$1.84B8.3%
COM CL A$1.44B6.5%
SPONSORED ADR$773.43M3.5%
SHS$675.11M3.1%
COM NEW$574.93M2.6%
CAP STK CL A$520.49M2.4%
Portfolio Concentration
Top 3$2.61B11.8%
4–10$3.81B17.2%
11–25$3.24B14.7%
Rest$12.46B56.3%
Top 3 weight
11.8%
Top 10 weight
29.0%
Voting Authority Distribution
Total shares with voting rights: 238.17M
Sole
Full voting authority
170.35M
shares
% of voting shares71.5%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
67.83M
shares
% of voting shares28.5%
Investment Discretion (by position count)
Sole247
Shared0
Other0
Dominant voting typeSole · 71.5% of voting shares
Institutional Holdings247
Rows:
NVIDIA CORPORATION
SOLEShares7.58M
TypeSH
Market value$920.24M
4.16%
Sole
5.56M
Shared
0.00
None
2.02M
APPLE INC
SOLEShares3.74M
TypeSH
Market value$870.79M
3.93%
Sole
2.81M
Shared
0.00
None
930.32K
MICROSOFT CORP
SOLEShares1.91M
TypeSH
Market value$823.76M
3.72%
Sole
1.39M
Shared
0.00
None
527.88K
ASCENDIS PHARMA A/S
SOLEShares5.13M
TypeSH
Market value$766.52M
3.46%
Sole
3.55M
Shared
0.00
None
1.58M
AMAZON COM INC
SOLEShares3.46M
TypeSH
Market value$644.69M
2.91%
Sole
2.68M
Shared
0.00
None
784.24K
TRANSDIGM GROUP INC
SOLEShares372.06K
TypeSH
Market value$530.98M
2.40%
Sole
249.93K
Shared
0.00
None
122.13K
META PLATFORMS INC
SOLEShares911.72K
TypeSH
Market value$521.91M
2.36%
Sole
665.41K
Shared
0.00
None
246.31K
ALPHABET INC
SOLEShares3.14M
TypeSH
Market value$520.49M
2.35%
Sole
2.39M
Shared
0.00
None
747.01K
AXON ENTERPRISE INC
SOLEShares1.18M
TypeSH
Market value$469.66M
2.12%
Sole
682.07K
Shared
0.00
None
493.26K
VERTIV HOLDINGS CO
SOLEShares3.61M
TypeSH
Market value$359.31M
1.62%
Sole
2.27M
Shared
0.00
None
1.34M
SERVICENOW INC
SOLEShares341.88K
TypeSH
Market value$305.77M
1.38%
Sole
225.19K
Shared
0.00
None
116.68K
COMFORT SYS USA INC
SOLEShares708.18K
TypeSH
Market value$276.44M
1.25%
Sole
493.74K
Shared
0.00
None
214.44K
VISA INC
SOLEShares896.72K
TypeSH
Market value$246.55M
1.11%
Sole
744.55K
Shared
0.00
None
152.17K
LEGEND BIOTECH CORP
SOLEShares5.04M
TypeSH
Market value$245.53M
1.11%
Sole
3.33M
Shared
0.00
None
1.71M
NETFLIX INC
SOLEShares314.23K
TypeSH
Market value$222.87M
1.01%
Sole
199.81K
Shared
0.00
None
114.42K
FTAI AVIATION LTD
SOLEShares1.66M
TypeSH
Market value$220.62M
1.00%
Sole
1.09M
Shared
0.00
None
574.45K
PROGRESSIVE CORP
SOLEShares828.44K
TypeSH
Market value$210.22M
0.95%
Sole
489.85K
Shared
0.00
None
338.59K
OPTION CARE HEALTH INC
SOLEShares6.49M
TypeSH
Market value$203.20M
0.92%
Sole
4.51M
Shared
0.00
None
1.98M
BROADCOM INC
SOLEShares1.18M
TypeSH
Market value$203.02M
0.92%
Sole
807.69K
Shared
0.00
None
369.26K
VAXCYTE INC
SOLEShares1.74M
TypeSH
Market value$198.82M
0.90%
Sole
1.26M
Shared
0.00
None
483.85K
DEXCOM INC
SOLEShares2.84M
TypeSH
Market value$190.53M
0.86%
Sole
1.99M
Shared
0.00
None
855.87K
M/I HOMES INC
SOLEShares1.11M
TypeSH
Market value$189.70M
0.86%
Sole
763.71K
Shared
0.00
None
343.31K
MASIMO CORP
SOLEShares1.39M
TypeSH
Market value$185.87M
0.84%
Sole
886K
Shared
0.00
None
508.06K
INSULET CORP
SOLEShares754.87K
TypeSH
Market value$175.70M
0.79%
Sole
479.63K
Shared
0.00
None
275.24K
ICON PLC
SOLEShares591.75K
TypeSH
Market value$170.02M
0.77%
Sole
469.99K
Shared
0.00
None
121.76K
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
NVIDIA CORPORATIONSOLE | COM | 7.58M | SH | $920.24M 4.16% | 5.56M | 0.00 | 2.02M |
APPLE INCSOLE | COM | 3.74M | SH | $870.79M 3.93% | 2.81M | 0.00 | 930.32K |
MICROSOFT CORPSOLE | COM | 1.91M | SH | $823.76M 3.72% | 1.39M | 0.00 | 527.88K |
ASCENDIS PHARMA A/SSOLE | SPONSORED ADR | 5.13M | SH | $766.52M 3.46% | 3.55M | 0.00 | 1.58M |
AMAZON COM INCSOLE | COM | 3.46M | SH | $644.69M 2.91% | 2.68M | 0.00 | 784.24K |
TRANSDIGM GROUP INCSOLE | COM | 372.06K | SH | $530.98M 2.40% | 249.93K | 0.00 | 122.13K |
META PLATFORMS INCSOLE | CL A | 911.72K | SH | $521.91M 2.36% | 665.41K | 0.00 | 246.31K |
ALPHABET INCSOLE | CAP STK CL A | 3.14M | SH | $520.49M 2.35% | 2.39M | 0.00 | 747.01K |
AXON ENTERPRISE INCSOLE | COM | 1.18M | SH | $469.66M 2.12% | 682.07K | 0.00 | 493.26K |
VERTIV HOLDINGS COSOLE | COM CL A | 3.61M | SH | $359.31M 1.62% | 2.27M | 0.00 | 1.34M |
SERVICENOW INCSOLE | COM | 341.88K | SH | $305.77M 1.38% | 225.19K | 0.00 | 116.68K |
COMFORT SYS USA INCSOLE | COM | 708.18K | SH | $276.44M 1.25% | 493.74K | 0.00 | 214.44K |
VISA INCSOLE | COM CL A | 896.72K | SH | $246.55M 1.11% | 744.55K | 0.00 | 152.17K |
LEGEND BIOTECH CORPSOLE | SPONSORED ADS | 5.04M | SH | $245.53M 1.11% | 3.33M | 0.00 | 1.71M |
NETFLIX INCSOLE | COM | 314.23K | SH | $222.87M 1.01% | 199.81K | 0.00 | 114.42K |
FTAI AVIATION LTDSOLE | SHS | 1.66M | SH | $220.62M 1.00% | 1.09M | 0.00 | 574.45K |
PROGRESSIVE CORPSOLE | COM | 828.44K | SH | $210.22M 0.95% | 489.85K | 0.00 | 338.59K |
OPTION CARE HEALTH INCSOLE | COM NEW | 6.49M | SH | $203.20M 0.92% | 4.51M | 0.00 | 1.98M |
BROADCOM INCSOLE | COM | 1.18M | SH | $203.02M 0.92% | 807.69K | 0.00 | 369.26K |
VAXCYTE INCSOLE | COM | 1.74M | SH | $198.82M 0.90% | 1.26M | 0.00 | 483.85K |
DEXCOM INCSOLE | COM | 2.84M | SH | $190.53M 0.86% | 1.99M | 0.00 | 855.87K |
M/I HOMES INCSOLE | COM | 1.11M | SH | $189.70M 0.86% | 763.71K | 0.00 | 343.31K |
MASIMO CORPSOLE | COM | 1.39M | SH | $185.87M 0.84% | 886K | 0.00 | 508.06K |
INSULET CORPSOLE | COM | 754.87K | SH | $175.70M 0.79% | 479.63K | 0.00 | 275.24K |
ICON PLCSOLE | SHS | 591.75K | SH | $170.02M 0.77% | 469.99K | 0.00 | 121.76K |
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