2026 Q2 Portfolio Activity
In 2026 Q2, 13D Management LLC maintained a portfolio of 14 distinct positions. The most significant new addition was SYNOPSYS INC, now representing 7.91% of the total fund value. Conversely, 13D Management LLC completely exited their position in ACADIA HEALTHCARE COMPANY IN.
Position History
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Total Positions
14
Quarter
2026 Q2
Top Holding
VSAT (15.9%)
Top 10 Concentration
94.4%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-14 of 14
13D Management LLC Full Holdings List — 2026 Q2
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
VSAT
VIASAT INC
|
Technology | 15.89% | 11.70% |
#1
1
Prev: #2
|
6.0 |
—
|
-38,500 | -23.4% |
P
S
|
126,250 | $11,338,513 |
$29.30
+182.8%
|
2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
TWLO
TWILIO INC
|
Technology | 11.28% | 11.85% |
#2
1
Prev: #1
|
5.5 |
—
|
-21,755 | -35.8% |
P
S
|
39,000 | $8,046,870 |
$56.81
+310.7%
|
2024 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
MRCY
MERCURY SYS INC
|
Industrials | 10.37% | 6.83% |
#3
4
Prev: #7
|
6.0 |
—
|
no change | no change |
P
S
|
60,462 | $7,396,316 |
$53.64
+107.1%
|
2022 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | ||
|
PSO
PEARSON PLC
|
Communication Services | 10.21% | 9.33% |
#4
Prev: #4
|
5.5 |
—
|
no change | no change |
P
S
|
458,338 | $7,282,991 | 2020 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ALV
AUTOLIV INC
|
Consumer Cyclical | 9.09% | 9.10% |
#5
Prev: #5
|
5.1 |
—
|
no change | no change |
P
S
|
55,839 | $6,486,817 | 2018 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
CRL
CHARLES RIV LAB...
|
Healthcare | 8.20% | 6.90% |
#6
Prev: #6
|
4.3 |
—
|
no change | no change |
P
S
|
25,800 | $5,851,182 | 2025 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
SNPS
SYNOPSYS INC
|
Technology | 7.91% | — |
#7
Prev: #—
|
6.7 |
—
|
12,650 | — |
NEW
|
12,650 | $5,642,786 | 2026 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
EXEL
EXELIXIS INC
|
Healthcare | 7.73% | 6.74% |
#8
Prev: #8
|
4.1 |
—
|
no change | no change |
P
S
|
101,335 | $5,513,637 | 2023 Q2 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ETSY
ETSY INC
|
Consumer Cyclical | 7.59% | 5.57% |
#9
1
Prev: #10
|
4.0 |
—
|
no change | no change |
P
S
|
71,836 | $5,411,406 | 2024 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ITGR
INTEGER HLDGS C...
|
Healthcare | 6.16% | 6.41% |
#10
1
Prev: #9
|
3.5 |
—
|
no change | no change |
P
S
|
47,000 | $4,392,150 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
FUN
SIX FLAGS ENTER...
|
Consumer Cyclical | 5.57% | 5.13% |
#11
Prev: #11
|
3.2 |
—
|
no change | no change |
P
S
|
186,500 | $3,972,450 | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
WK
WORKIVA INC
|
Technology | 0.00% | 4.81% |
Sold All 😨
(Was: #13) |
0.0 |
—
|
-52,000 | -100.0% |
CLOSED
|
— | $— | 2025 Q4 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
TRIP
TRIPADVISOR INC
|
Consumer Cyclical | 0.00% | 4.96% |
Sold All 😨
(Was: #12) |
0.0 |
—
|
-300,000 | -100.0% |
CLOSED
|
— | $— | 2025 Q3 | 13F Filing | 2026-06-30 | 2026-08-14 | |||
|
ACHC
ACADIA HEALTHCA...
|
Healthcare | 0.00% | 10.66% |
Sold All 😨
(Was: #3) |
0.0 |
—
|
-294,000 | -100.0% |
CLOSED
|
— | $— | 2026 Q1 | 13F Filing | 2026-06-30 | 2026-08-14 |
Showing 1-14 of 14 holdings