TDG
Transdigm Group Inc
7 super-investors hold TDG worth a combined $1.59B. The largest position: AltaRock Partners at 25.5% of their portfolio. This quarter the cohort logged 2 buys and 1 sell on the name. Cohort Conviction Score: 68 — ranked #8 of 724 scored stocks. Conviction rising: 1 more super-investor hold it than in 2025Q4.
Why super-investors own TDG
AltaRock Partners dominates the cohort story here, holding TDG at 25.5% of its portfolio — a $1.1B position that alone accounts for roughly two-thirds of the cohort's combined $1.6B exposure. Ownership has quietly expanded from a flat base of four holders over six consecutive quarters to seven as of 2026Q1, with Daniel Loeb initiating a new $29M position this quarter and Stephen Mandel adding to an existing stake. Vulcan Value Partners trimmed modestly but remains a holder at 5.7% of portfolio. Triple Frond Partners and Bryan Lawrence round out the high-conviction tier at 12.8% and 12.4% respectively. The trajectory — no exits, two additions, one new entrant — suggests rising rather than fading interest across the cohort.
AI-synthesized from 13F filings. Not investment advice.
In the news
all news →- TransDigm Stock Plummets 9.9% With 7-Day Losing StreakTrefis ·
- TransDigm Stock Slides 9.9% Over 7 Straight Down DaysTrefis ·
- Transdigm Group (NYSE:TDG) Downgraded by Morgan Stanley to "Equal Weight"MarketBeat ·
- Transdigm Group Inc. Stock 12‑Month Price Target Cut to $1510.56, Implies 24% UpsideTradingView ·
- TransDigm (TDG) Stock Looks Below Fair Value On Cash Flow, Fair On Earningssimplywall.st ·
- Donald Trump - TRANSDIGM GROUP INC Trump Trade on Jan. 06, 2026Quiver Quantitative ·
Headlines via Google News. Links open in a new tab.
Cohort owners over time
2016Q2 → 2026Q1How many of the cohort members held this stock each quarter.
Owners (7) · click any column to sort
| #↑ | Manager | % Port. | History | Value | Shares |
|---|---|---|---|---|---|
| 1 | AltaRock Partners | 25.5% | 40q | $1.05B | 909,168 |
| 2 | Vulcan Value Partners | 5.7% | 24q | $214M | 184,228 |
| 3 | Triple Frond Partners | 12.8% | 40q | $123M | 106,544 |
| 4 | Joel Greenblatt | 0.1% | 37q | $105M | 90,274 |
| 5 | Stephen Mandel | 0.3% | 24q | $41M | 35,677 |
| 6 | Daniel Loeb | 1.4% | 11q | $29M | 25,000 |
| 7 | Bryan Lawrence | 12.4% | 37q | $28M | 24,170 |
- 1AltaRock Partnersport25.5%val$1.05B909,168 sh·40q held
- 2Vulcan Value Partnersport5.7%val$214M184,228 sh·24q held
- 3Triple Frond Partnersport12.8%val$123M106,544 sh·40q held
- 4Joel Greenblattport0.1%val$105M90,274 sh·37q held
- 5Stephen Mandelport0.3%val$41M35,677 sh·24q held
- 6Daniel Loebport1.4%val$29M25,000 sh·11q held
- 7Bryan Lawrenceport12.4%val$28M24,170 sh·37q held
Owners of TDG also hold
Recent activity (3)
| Manager | Move | % Port. | Δ Shares | Value | Filed |
|---|---|---|---|---|---|
| Daniel Loeb | NEW | 1.4% | +100% | $29M | May 15, 2026 |
| Stephen Mandel | ADD | 0.3% | +86% | $41M | May 15, 2026 |
| Vulcan Value Partners | TRIM | 5.7% | -23% | $214M | May 11, 2026 |
Long US equity 13F-HR filings only. CUSIP 893641100. Not investment advice.