Institutional
13D Management LLC
CIK 0001600133
$64.5M
Reported AUM
13
Positions
Q1 2026
Period
2026-05-15
Filed
The Brief · 13D Management LLC · Q1 2026
AI · grounded in 13F
13D Management LLC established a new position in ACHC valued at $6.88M. The fund closed four positions, led by the exit of SWX for $5.11M, followed by the liquidation of BILL for $4.91M and WEX for $4.37M. Additionally, the fund trimmed its holdings in MRCY by 41.73% and VSAT by 18.34%.
Portfolio · Q1 2026
Top holdings
QoQ vs Q4 2025
| # | Ticker | Issuer | Value | % of book | Δ shares (QoQ) | Status |
|---|---|---|---|---|---|---|
| 1 | TWLO | TWILIO INC | $7.6M | 11.85% | — | HELD |
| 2 | VSAT | VIASAT INC | $7.5M | 11.70% | -37,000 | -18.3% |
| 3 | ACHC | ACADIA HEALTHCARE COMPANY IN | $6.9M | 10.66% | +294,000 | NEW |
| 4 | PSO | PEARSON PLC | $6.0M | 9.33% | — | HELD |
| 5 | ALV | AUTOLIV INC | $5.9M | 9.10% | — | HELD |
| 6 | CRL | CHARLES RIV LABS INTL INC | $4.5M | 6.90% | -2,200 | -7.9% |
| 7 | MRCY | MERCURY SYS INC | $4.4M | 6.83% | -43,300 | -41.7% |
| 8 | EXEL | EXELIXIS INC | $4.3M | 6.74% | -19,000 | -15.8% |
| 9 | ITGR | INTEGER HLDGS CORP | $4.1M | 6.41% | — | HELD |
| 10 | ETSY | ETSY INC | $3.6M | 5.57% | — | HELD |
| 11 | FUN | SIX FLAGS ENTERTAINMENT CORP | $3.3M | 5.13% | — | HELD |
| 12 | TRIP | TRIPADVISOR INC | $3.2M | 4.96% | — | HELD |
| 13 | WK | WORKIVA INC | $3.1M | 4.81% | — | HELD |
| 14 | SWX | SOUTHWEST GAS HLDGS INC | — | — | -63,798 | EXITED |
| 15 | BILL | BILL HOLDINGS INC | — | — | -90,000 | EXITED |
| 16 | WEX | WEX INC | — | — | -29,350 | EXITED |
| 17 | LW | LAMB WESTON HLDGS INC | — | — | -76,001 | EXITED |
Source: SEC EDGAR · accession 0001172661-26-002041. 13F discloses long positions only — shorts, foreign equities, and options are excluded.