CastleKnight Management LP CLS — CELESTICA INC

Ownership history in CastleKnight Management LP  ·  16 quarters on record

AI Ownership Summary

CastleKnight Management LP reported CELESTICA INC (CLS) in 16 quarterly 13F filings from 2024 Q2 through 2026 Q1. Peak portfolio weight reached 1.21% in 2025 Q1. The latest visible filing shows CLS at 0.87% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings.

What this CLS ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was CastleKnight Management LP's position in CELESTICA INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2026 Q1

CLS was reported at 0.87% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.21% in 2025 Q1

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2024 Q2 to 2026 Q1

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

CLS stock page CastleKnight Management LP fund profile CastleKnight Management LP full holdings
How CastleKnight Management LP held CLS — position size vs. price
% of Fund (quarterly)    CLS price (quarter-end, indexed to 100)    SPY (indexed to 100)    QQQ (indexed to 100)
📋 Quarterly Holdings History 16 quarters  ▾
Quarter Action Sold % After 3M Timing Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2026 Q1 REDUCED — — — 185,415 -14,585 -7.3% 0.87% $52.2M 2026-05-15 $358.55
2026 Q1 ADDED — — — 200,000 +118,032 +144.0% 0.94% $56.3M 2026-05-15 $358.55
2025 Q4 ADDED — — — 81,968 +21,968 +36.6% 0.54% $24.2M 2026-02-17 $286.66
2025 Q4 UNCHANGED — — — 60,000 — 0% 0.39% $17.7M 2026-02-17 $286.66
2025 Q3 ADDED — — — 60,000 +8,282 +16.0% 0.29% $14.8M 2025-11-14 $310.88
2025 Q3 REDUCED 75.6% +23.1% ❌ 51,718 -160,200 -75.6% 0.25% $12.7M 2025-11-14 $310.88
2025 Q2 ADDED — — — 211,918 +81,918 +63.0% 0.93% $33.1M 2025-08-14 $196.64
2025 Q2 REDUCED 66.9% +57.5% ❌ 130,000 -262,200 -66.9% 0.57% $20.3M 2025-08-14 $196.64
2025 Q1 ADDED — — — 392,200 +52,200 +15.4% 1.21% $30.9M 2025-05-15 $111.49
2025 Q1 ADDED — — — 340,000 +145,000 +74.4% 1.05% $26.8M 2025-05-15 $111.49
2024 Q4 ADDED — — — 195,000 +23,900 +14.0% 0.53% $18.0M 2025-02-14 $132.06
2024 Q4 REDUCED 51.1% -14.6% ✅ 171,100 -178,900 -51.1% 0.46% $15.8M 2025-02-14 $132.06
2024 Q3 REDUCED 23.4% +83.5% ❌ 350,000 -106,700 -23.4% 0.74% $17.9M 2024-11-14 $80.48
2024 Q3 ADDED — — — 456,700 +196,700 +75.7% 0.96% $23.3M 2024-11-14 $80.48
2024 Q2 ADDED — — — 260,000 +140,000 +116.7% 0.74% $14.9M 2024-08-14 $52.27
2024 Q2 INITIATED — — — 120,000 — — 0.34% $6.9M 2024-08-14 $52.27

🏢 Other funds also holding CLS

As of 2026 Q1 — sorted by position size

Grand Alliance Asset Management Ltd 15.18% Bannerstone Capital Management, LLC 10.4% SCALAR GAUGE MANAGEMENT, LLC 8.69% HERALD INVESTMENT MANAGEMENT Ltd 3Y 7Y 8.21% SELDON CAPITAL LP 3Y 7.33% Dilation Capital Management LP 7.11% MARK SHEPTOFF FINANCIAL PLANNING, LLC 3Y 7Y 6.56% Cunning Capital Partners, LP 3Y 5.74% Lattice Capital Management, LLC 3Y 5.63% Whale Rock Capital Management LLC 3Y 7Y 5.52%

FAQ About CastleKnight Management LP and CLS

These are the practical questions this page is built to answer before you even open the full history table.

How long has CastleKnight Management LP reported owning CLS?

CastleKnight Management LP reported CLS across 16 quarterly 13F filings, from 2024 Q2 through 2026 Q1.

What was the largest reported CLS position in CastleKnight Management LP's portfolio?

The largest reported portfolio weight for CLS was 1.21% in 2025 Q1.

What is the latest reported CLS position on this page?

The most recent filing on this page is 2026 Q1, when CastleKnight Management LP reported 185,415 shares, equal to 0.87% of portfolio, with an estimated market value of $52.2M.

What does the chart on this CLS ownership page compare?

The chart compares CastleKnight Management LP's quarterly CLS portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

How well did CastleKnight Management LP time their CLS position?

Based on 13F filing dates vs. subsequent CLS price moves, CastleKnight Management LP correctly timed 7 out of 14 reported position changes (50%). The annualised alpha on CLS relative to SPY over the holding period was +149.2%.

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