Newtyn Management, LLC — 13F Holdings & Portfolio
CIK 1569241 · latest 13F-HR filed 2026-08-14
Newtyn Management, LLC manages $800.9M in 13F-reported U.S. long-equity assets across 34 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are QDEL (14.49%), TBPH (7.29%), INDV (6.69%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 8 new positions and exited 7; 15 existing positions rose in reported value and 10 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-08-14
vs 2026-03-31
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q2 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q1 26 → Q2 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 61.9%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 27, 2026.
SUITE 1215
NEW YORK, NY 10165
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| ALLY, NAZIM, NMN Control | CHIEF FINANCIAL OFFICER/CHIEF COMPLIANCE OFFICER since Feb 2014 | Less than 5% | Individual |
| DOZORTSEV, EUGENE, NMN Control | MANAGING MEMBER since Jul 2011 | 25–50% | Individual |
| LEVY, NOAH, GABRIEL Control | MANAGING MEMBER since Jul 2011 | 50–75% | Individual |
Ownership & leadership changes · 1 filing with changes since Feb 14, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- No longer listedFISCHER, AARON, MARK · CHIEF FINANCIAL OFFICER/CHIEF COMPLIANCE OFFICER · Less than 5% · listed since Jul 2011
- AddedALLY, NAZIM, NMN · CHIEF FINANCIAL OFFICER/CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedDOZORTSEV, EUGENE, NMN · MANAGING MEMBER · 25–50% · control person
- ListedFISCHER, AARON, MARK · CHIEF FINANCIAL OFFICER/CHIEF COMPLIANCE OFFICER · Less than 5%
- ListedLEVY, NOAH, GABRIEL · MANAGING MEMBER · 50–75% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- QUIDELORTHO CORP$41.1M +54.9%
- GREEN DOT CORP$14.7M +915.9%
- CANNAE HLDGS INC$8.5M +22.9%
- WEAVE COMMUNICATIONS INC$8.3M +25.8%
- MAGNERA CORP$6.7M +25.3%
Top Trims
- ARRAY DIGITAL INFRASTRUCTURE-$53.0M -71.0%
- THERAVANCE BIOPHARMA INC-$20.2M -25.7%
- APARTMENT INVT & MGMT CO-$13.4M -27.0%
- RESOLUTE HLDGS MGMT INC-$10.1M -25.6%
- TELEFLEX INCORPORATED-$9.2M -19.2%
New Positions
- OCTAVE INTELLIGENCE PLC$31.3M
- XOMA ROYALTY CORPORATION$30.1M
- POWER SOLUTIONS INTL INC$23.4M
- CHIRON REAL ESTATE INC$15.2M
- ENVIRI CORP$8.2M
Exited Positions
- ENVIRI CORP$108.0M
- VISTANCE NETWORKS INC$68.5M
- USA RARE EARTH INC$35.4M
- DESTINY TECH100 INC$9.2M
- ULTRAGENYX PHARMACEUTICAL IN$8.4M
Newtyn Management, LLC Holdings (2026-06-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | QUIDELORTHO CORP | QDEL | 219798105 | $116.0M | 14.49% | 6,625,000 | SH |
| 2 | THERAVANCE BIOPHARMA INC | TBPH | G8807B106 | $58.4M | 7.29% | 3,434,191 | SH |
| 3 | INDIVIOR PHARMACEUTICALS INC | INDV | 45579U109 | $53.6M | 6.69% | 1,305,795 | SH |
| 4 | CANNAE HLDGS INC | CNNE | 13765N107 | $45.6M | 5.70% | 3,169,631 | SH |
| 5 | PAR TECHNOLOGY CORP | PAR | 698884103 | $42.1M | 5.26% | 2,418,754 | SH |
| 6 | WEAVE COMMUNICATIONS INC | WEAV | 94724R108 | $40.7M | 5.08% | 6,790,000 | SH |
| 7 | TELEFLEX INCORPORATED | TFX | 879369106 | $38.7M | 4.83% | 305,000 | SH |
| 8 | APARTMENT INVT & MGMT CO | AIV | 03748R747 | $36.2M | 4.52% | 12,200,000 | SH |
| 9 | MAGNERA CORP | MAGN | 55939A107 | $32.9M | 4.11% | 2,800,000 | SH |
| 10 | OCTAVE INTELLIGENCE PLC | OCTV | G22845104 | $31.3M | 3.91% | 1,922,160 | SH |
| 11 | XOMA ROYALTY CORPORATION | XOMA | 98419J206 | $30.1M | 3.76% | 709,247 | SH |
| 12 | RESOLUTE HLDGS MGMT INC | RHLD | 76134H101 | $29.3M | 3.65% | 202,423 | SH |
| 13 | BRIGHTVIEW HLDGS INC | BV | 10948C107 | $27.5M | 3.43% | 1,940,000 | SH |
| 14 | POWER SOLUTIONS INTL INC | PSIX | 73933G202 | $23.4M | 2.92% | 600,890 | SH |
| 15 | COGENT COMM HOLDINGS INC | CCOI | 19239V302 | $23.0M | 2.87% | 1,655,895 | SH |
| 16 | ARRAY DIGITAL INFRASTRUCTURE | AD | 911684108 | $21.7M | 2.70% | 597,090 | SH |
| 17 | COMPASS MINERALS INTL INC | CMP | 20451N101 | $19.7M | 2.46% | 632,326 | SH |
| 18 | GREEN DOT CORP | GDOT | 39304D102 | $16.3M | 2.03% | 1,203,203 | SH |
| 19 | SPECTRUM BRANDS HOLDINGS INC | SPB | 84790A105 | $15.9M | 1.98% | 185,012 | SH |
| 20 | CHIRON REAL ESTATE INC | XRN | 37954A303 | $15.2M | 1.90% | 406,414 | SH |
| 21 | ROCKET PHARMACEUTICALS INC | RCKT | 77313F106 | $13.7M | 1.71% | 4,000,000 | SH |
| 22 | 1 800 FLOWERS COM INC | FLWS | 68243Q106 | $12.2M | 1.52% | 3,500,000 | SH |
| 23 | NI HLDGS INC | NODK | 65342T106 | $10.5M | 1.31% | 670,000 | SH |
| 24 | GRAIL INC | GRAL | 384747101 | $10.2M | 1.28% | 150,000 | SH |
| 25 | ENVIRI CORP | NVRI | 29390K102 | $8.2M | 1.03% | 374,194 | SH |
| 26 | ATAIBECKLEY INC | ATAI | 04650F101 | $6.3M | 0.78% | 1,187,808 | SH |
| 27 | SERITAGE GROWTH PPTYS | SRG | 81752R100 | $6.0M | 0.74% | 2,266,230 | SH |
| 28 | ELME COMMUNITIES | ELME | 939653101 | $3.7M | 0.46% | 2,500,000 | SH |
| 29 | FRANKLIN STR PPTYS CORP | FSP | 35471R106 | $3.7M | 0.46% | 7,150,000 | SH |
| 30 | FUNDRISE INNOVATION FD LLC | VCX | 360852107 | $3.5M | 0.43% | 40,000 | SH |
| 31 | ZOOZ STRATEGY LTD | ZOOZ | M2573A239 | $3.0M | 0.37% | 537,499 | SH |
| 32 | WAVE LIFE SCIENCES LTD | WVE | Y95308105 | $1.2M | 0.16% | 215,000 | SH |
| 33 | MEREO BIOPHARMA GROUP PLC | MREO | 589492107 | $953.1K | 0.12% | 3,000,000 | SH |
| 34 | ENHANCED GROUP INC | ENHA | 29333R107 | $287.0K | 0.04% | 99,998 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $800.9M | 34 | 0001493152-26-038303 |
| 2026-03-31 | 2026-05-15 | $935.8M | 33 | 0001493152-26-023722 |
| 2025-12-31 | 2026-02-17 | $951.8M | 33 | 0001493152-26-007100 |
| 2025-09-30 | 2025-11-14 | $816.9M | 33 | 0001493152-25-023432 |
12TH FLOOR
NEW YORK, NY 10165