William Harnisch Peconic Partners
William Harnisch is the founder of Peconic Partners, a concentrated investment firm known for high-conviction equity positions. The firm’s portfolio often differs sharply from broad market benchmarks, reflecting a willingness to concentrate capital. Harnisch’s disclosures are tracked by investors interested in bold, research-driven concentration.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
WPX
WPX Energy, Inc.
WPX
|
+$25.1M |
| 2 |
Targa Resources
TRGP
|
+$14.7M |
| 3 |
Wheaton Precious Metals
WPM
|
+$7.25M |
| 4 |
Ovintiv
OVV
|
+$6.86M |
| 5 |
ACB
Aurora Cannabis
ACB
|
+$6.15M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Kinder Morgan
KMI
|
+$27M |
| 2 |
Microsoft
MSFT
|
+$20.3M |
| 3 |
Tesla
TSLA
|
+$14.6M |
| 4 |
SPLK
Splunk Inc
SPLK
|
+$6.24M |
| 5 |
TWTR
Twitter, Inc.
TWTR
|
+$4.31M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Industrials | 71.88% |
| 2 | Energy | 13.17% |
| 3 | Real Estate | 4.59% |
| 4 | Technology | 3.66% |
| 5 | Materials | 1.94% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1
MasTec
MTZ
$21.4B
| $212M | 42.63% |
4,410,870
+28,200
| +0.6% | +$1.27M |
|
2
Quanta Services
PWR
$96.1B
| $145M | 29.18% |
3,848,173
+157,800
| +4% | +$5.51M |
|
|
WPX
3
DELISTED
WPX Energy, Inc.
WPX
| $26.2M | 5.27% |
+2,000,000
| New | +$25.1M |
|
|
4
Targa Resources
TRGP
$64.1B
| $23.7M | 4.76% |
569,900
+349,900
| +159% | +$14.7M |
|
5
SBA Communications
SBAC
$19.4B
| $16.9M | 3.39% |
84,559
| – | – |
|
|
6
Wheaton Precious Metals
WPM
$71.7B
| $8.12M | 1.63% |
+340,800
| New | +$7.25M |
|
|
ACB
7
Aurora Cannabis
ACB
$249M
| $7.47M | 1.5% |
+6,875
| New | +$6.15M |
|
|
8
Ovintiv
OVV
$18.5B
| $7.24M | 1.45% |
+200,000
| New | +$6.86M |
|
|
DATA
9
DELISTED
Tableau Software, Inc.
DATA
| $7M | 1.41% |
54,965
+34,965
| +175% | +$4.41M |
|
10
Vanguard Long-Term Treasury ETF
VGLT
$10.3B
| $5.83M | 1.17% |
75,000
| – | – |
|
11
iShares MSCI Emerging Markets ETF
EEM
$30.7B
| $4.29M | 0.86% |
+100,000
| New | +$4.21M |
|
12
Crown Castle
CCI
$32.1B
| $3.52M | 0.71% |
27,500
-10,000
| -27% | -$1.17M |
|
13
ON Semiconductor
ON
$28.9B
| $3.08M | 0.62% |
+150,000
| New | +$3.09M |
|
14
Workday
WDAY
$49.4B
| $2.89M | 0.58% |
+15,000
| New | +$2.73M |
|
15
American Tower
AMT
$81.9B
| $2.27M | 0.46% |
11,500
| – | – |
|
16
State Street Technology Select Sector SPDR ETF
XLK
$120B
| $2.25M | 0.45% |
60,780
-5,220
| -8% | -$179K |
|
17
Twilio
TWLO
$34.6B
| $2.23M | 0.45% |
17,300
-12,700
| -42% | -$1.43M |
|
18
Occidental Petroleum
OXY
$61.3B
| $1.85M | 0.37% |
+28,000
| New | +$1.84M |
|
19
Diamondback Energy
FANG
$59B
| $1.52M | 0.31% |
15,000
| – | – |
|
20
Pan American Silver
PAAS
$22B
| $1.41M | 0.28% |
+106,162
| New | +$1.49M |
|
21
Viper Energy
VNOM
$16.3B
| $1.16M | 0.23% |
+35,000
| New | +$1.12M |
|
22
Walmart Inc
WMT
$825B
| $975K | 0.2% |
30,000
| – | – |
|
23
NXP Semiconductors
NXPI
$56.9B
| $972K | 0.2% |
11,000
| – | – |
|
24
Magnolia Oil & Gas
MGY
$6.67B
| $900K | 0.18% |
75,000
| – | – |
|
|
CLR
25
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $895K | 0.18% |
+20,000
| New | +$894K |
|
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William Harnisch's Q1 2019 Portfolio in Review
As of Q1 2019, William Harnisch held 60 positions worth $498M, up 22% from $409M the previous quarter. Its ten largest holdings account for 92% of the portfolio.
William Harnisch's Q1 2019 filing shows 17 new, 6 increased, 7 reduced and 5 closed positions. Its largest new stake was WPX Energy, Inc.: 2,000,000 shares worth $26.2M. The largest sale was Kinder Morgan, an estimated $27M.
By sector, the portfolio is most concentrated in Industrials at 72% of assets, up from 71% a quarter earlier, followed by Energy and Real Estate.
- William Harnisch's largest Q1 2019 buy was WPX Energy, Inc.: 2,000,000 shares worth $26.2M.
- William Harnisch added most to Targa Resources in Q1 2019, an estimated $14.7M increase.
- William Harnisch's biggest Q1 2019 reduction was Kinder Morgan, cutting an estimated $27M.
- William Harnisch fully exited Microsoft in Q1 2019, selling an estimated $20.3M.
- William Harnisch's ten largest holdings make up 92% of its $498M portfolio in Q1 2019.
- William Harnisch opened 17 new positions and closed 5 in Q1 2019.
- William Harnisch's portfolio value rose 22% quarter-over-quarter to $498M.
Based on Peconic Partners's 13F filing for Q1 2019, filed 15 May 2019.