69% in Two Stocks and a $7.4B Buyout Pending: Inside Trian’s Ultra-Concentrated Q4 2025 Activist Portfolio

Trian Fund Management, Nelson Peltz’s activist fund, filed its Q4 2025 13F on February 17, 2026, revealing a $3.98 billion portfolio compressed into just seven positions. That alone would make it one of Wall Street’s most concentrated institutional portfolios. But what makes this filing extraordinary is that the #1 holding — Janus Henderson Group at $1.52 billion — is the target of a $7.4 billion take-private deal that Peltz himself announced nine days before quarter-end.

This isn’t a filing you read for diversification insights. It’s a filing you read to understand how a billionaire activist operates when he’s running a concentrated book of live campaigns, a pending buyout, and a decade-long industrial thesis simultaneously.

TL;DR

• Portfolio value: $3.98B across 7 positions (Q3: $2.89B across 6 — a 37.7% jump)
• Top-2 concentration: 69.2% — Janus Henderson (38.1%) + GE Aerospace (31.2%)
• Top-3 concentration: 85.6% — adds Solventum (16.4%)
• Janus Henderson buyout: $7.4B take-private at $49/share announced Dec 22, 2025 with General Catalyst. Trian owns 20.6%. Expected to close mid-2026.
• GE Aerospace returned: $1.24B position (4.03M shares) reappeared after being absent from Q3 filing. Same share count as Q2.
• Invesco slashed 80%: Cut from $335.6M (14.6M shares) to $78.0M (3.0M shares) — exiting one asset manager while buying another.
• Solventum activism: $652.7M position (~5% of SOLV), open letter demanding $140 price target by 2027.
• GE decade play: Original $2.5B investment in 2015. GE has since split into GE Aerospace, GE HealthCare, and GE Vernova.
• Holdings trend: From 12 holdings in Q3 2023 down to 7 in Q4 2025 — systematic concentration over 18 months.

Filing Snapshot

Metric	Q4 2025	Q3 2025	Change
13F AUM	$3.98B	$2.89B	+37.7%
Holdings Count	7	6	+1
Top-1 Weight	38.1% (JHG)	49.0% (JHG)	−10.9pp
Top-2 Weight	69.2%	70.3%	−1.1pp
Top-5 Weight	98.0%	98.6%	−0.6pp
Report Date	Dec 31, 2025	Sep 30, 2025	—
Filing Date	Feb 17, 2026	Nov 14, 2025	—

The Janus Henderson Buyout: 5 Years From Activist to Acquirer

Trian first took a position in Janus Henderson in 2020 and won board representation by 2022. After five years of pushing for operational improvements, Peltz made the ultimate activist move: buying the entire company.

On December 22, 2025, Trian and General Catalyst announced a $7.4 billion all-cash deal to acquire Janus Henderson at $49 per share — an 18% premium over the October 24 closing price. The deal was unanimously approved by Janus Henderson’s board and is expected to close in mid-2026.

Trian’s 31.87 million shares at the $49 buyout price would be worth approximately $1.56 billion — consistent with the $1.52 billion value reported in the Q4 filing. Crucially, the share count hasn’t changed since Q2 2025 ($1.24B) or Q3 2025 ($1.42B). Peltz wasn’t trading around the position — he was waiting for the endgame.

At a recent investor event in February 2026, Peltz told Reuters he’s “open to more buyouts,” suggesting the Janus Henderson deal could be a template for future Trian campaigns. The subtext: activist investing is evolving from board seats to outright ownership.

GE Aerospace: A Decade of Activist Patience

Trian’s $1.24 billion stake in GE Aerospace represents one of the longest-running activist campaigns on Wall Street. Peltz first invested $2.5 billion in General Electric in October 2015, making it Trian’s largest single investment at the time.

Since then, GE has undergone a radical transformation: splitting into three independent companies — GE Aerospace, GE HealthCare, and GE Vernova. Peltz still holds all three pieces, though the Aerospace segment carries virtually all the value ($1.24B vs. $0.3M for GEHC).

The Q3 anomaly: GE Aerospace was completely absent from Trian’s Q3 2025 filing, dropping the fund’s reported AUM from $3.79B (Q2) to $2.89B (Q3). In Q4, it reappeared at $1.24B with effectively the same share count (4,030,765 vs. Q2’s 4,030,213). This pattern — identical share counts surrounding a one-quarter gap — is more consistent with a filing anomaly or temporary custody transfer than with Peltz actually selling and rebuying a $1 billion position.

Solventum: The Active Campaign With a $140 Target

Solventum, the healthcare division spun off from 3M in April 2024, is Trian’s most active current campaign. At $652.7 million, Trian’s ~5% stake makes it the largest active shareholder of the ~$9 billion company.

In January 2025, Trian published an open letter to Solventum shareholders arguing the stock could reach $140 by the end of 2027 — more than double its price of ~$69 at the time. Trian’s thesis: Solventum was 3M’s best-performing division but has underperformed as a standalone due to insufficient management ambition.

The Q4 data shows a modest trim — Trian sold 226,066 shares, bringing the position from 8.46M to 8.24M shares. At 16.4% of the portfolio, it remains the third-largest position. This isn’t a vote of no confidence; it’s routine portfolio maintenance as the activist campaign continues.

The Invesco Exit: Selling One Asset Manager While Buying Another

Perhaps the most telling move in Q4: Trian slashed its Invesco position by nearly 80%, cutting from 14.63 million shares ($335.6M) to just 2.97 million shares ($78.0M). This follows earlier reductions — Trian held $405M in Invesco as recently as Q1 2025.

The irony is hard to miss. Peltz is selling his stake in one asset manager (Invesco, market cap ~$8B) while simultaneously buying another (Janus Henderson, acquired for $7.4B). The strategic logic: Invesco was a position Peltz reduced for quarters without a clear activist catalyst materializing. Janus Henderson was a position he built toward full ownership over five years.

If the Invesco wind-down continues at this pace, expect a full exit by Q1 or Q2 2026.

Wendy’s and Ferguson: The Steady Holds

Wendy’s ($253.6M, 6.4%) and Ferguson ($241.9M, 6.1%) round out the portfolio as stable, long-duration positions. Peltz has been involved with Wendy’s since the mid-2000s, serving on the board and pushing for franchise model optimization. Neither position saw meaningful share count changes in Q4.

Together, these two positions account for 12.4% of the portfolio — the “ballast” holdings that generate steady returns while the high-conviction activist plays dominate.

Concentration Analysis: The Conviction Spectrum

Trian’s 69.2% top-2 concentration puts it in rarefied company among institutional 13F filers. For context:

• TCI Fund Management holds 9 stocks with ~75% in the top 3
• Pershing Square runs 11 holdings but rarely exceeds 60% in top 2
• Thoma Bravo famously put 95.4% into a single stock (SailPoint) in Q4 2025

What makes Trian distinctive is that its concentration isn’t passive conviction — it’s active ownership. The #1 holding is being acquired. The #3 holding has an open activist letter. The #2 holding reflects a decade of industrial restructuring advocacy. Every position has a campaign thesis attached.

The 18-month trajectory is equally telling: from 12 holdings in Q3 2023 to 7 in Q4 2025. Peltz isn’t accumulating positions — he’s pruning the portfolio to run fewer, deeper campaigns.

What Analysts Might Misread

1. “The GE Aerospace re-entry signals a new position”

It doesn’t. The share count is virtually identical to Q2 (4,030,765 vs. 4,030,213). The one-quarter gap is almost certainly a filing or custody anomaly, not a $1.2 billion round-trip trade.

2. “Trian is reducing Solventum conviction”

A 226K-share trim on an 8.46M-share position (2.7% reduction) while simultaneously publishing a $140 price target letter is not a de-conviction signal. It’s tax-lot management or rebalancing.

3. “The Janus Henderson position is dead money waiting for the merger”

At $49/share, the upside is capped for public shareholders. But Peltz already owns 20.6% of the equity and will own 100% post-merger. The 13F position is a fraction of the total economic exposure once the deal closes.

Q&A: What Investors Are Asking

What did Nelson Peltz buy in Q4 2025?

Trian’s most notable Q4 move was the reappearance of GE Aerospace ($1.24B) in the 13F filing after its absence in Q3. The fund also added 3,295 shares of Wendy’s. There were no entirely new positions initiated in Q4.

Did Nelson Peltz sell Invesco in Q4 2025?

Nearly. Trian cut 79.7% of its Invesco stake, selling 11.66 million shares and reducing the position from $335.6M to $78.0M. A complete exit appears imminent.

Is Trian still buying Janus Henderson?

Trian and General Catalyst announced a $7.4 billion take-private of Janus Henderson on December 22, 2025, at $49/share. The deal is expected to close in mid-2026. Trian currently holds 31.87M shares (20.6% of JHG).

How concentrated is Nelson Peltz’s portfolio?

Extremely. The top 2 holdings (Janus Henderson + GE Aerospace) represent 69.2% of the $3.98B portfolio. The top 3 (adding Solventum) account for 85.6%. Trian holds just 7 positions total.

Why did GE Aerospace disappear from Trian’s Q3 2025 filing?

The most likely explanation is a filing anomaly or temporary custody transfer. The share count in Q4 (4,030,765) is virtually identical to Q2 (4,030,213), suggesting no actual sale occurred. Trian’s Q3 AUM of $2.89B was unusually low as a result.

What is Trian’s investment strategy?

Trian Fund Management is an activist fund that takes concentrated positions in underperforming companies and pushes for operational changes. Unlike hedge funds that trade frequently, Peltz holds positions for years — sometimes decades, as with GE (since 2015) and Wendy’s (since the mid-2000s). The Janus Henderson buyout represents an evolution: from activist engagement to outright ownership.