Renaissance Technologies's AJG Position Overview
Renaissance Technologies (via Renaissance Technologies LLC) currently holds 4,320 shares of Arthur J. Gallagher & Co. (AJG) worth $1.12 M, representing 0.00% of the portfolio. First purchased in 2013-Q2, this long-term strategic position has been held for 47 quarters.
Based on 13F filings since 2013, Renaissance Technologies has maintained a long-term strategic position in AJG, representing a significant commitment to this investment thesis. Largest addition occurred in Q4 2014, adding 583,200 shares. Largest reduction occurred in Q4 2021, reducing 455,900 shares.
Analysis based on 13F filings available since 2013 Q2
Renaissance Technologies's Arthur J Gallagher & Co (AJG) Holding Value Over Time
Track share changes against reported price movement
Quarterly Arthur J Gallagher & Co (AJG) Trades by Renaissance Technologies
| Report Date | Bought/Sold (Sh.) | % Change | Qtr. End Shares | Reported Price |
|---|---|---|---|---|
| Q2 2013 | +301,400 | Add 0.00% | 301,400 | $43.69 |
| Q3 2013 | +281,300 | Add 93.33% | 582,700 | $43.65 |
| Q4 2013 | -46,900 | Reduce 8.05% | 535,800 | $46.93 |
| Q1 2014 | -372,399 | Reduce 69.50% | 163,401 | $47.58 |
| Q2 2014 | -158,901 | Reduce 97.25% | 4,500 | $46.67 |
| Q3 2014 | +112,300 | Add 2495.56% | 116,800 | $45.36 |
| Q4 2014 | +583,200 | Add 499.32% | 700,000 | $47.08 |
| Q1 2015 | -165,000 | Reduce 23.57% | 535,000 | $46.75 |
| Q2 2015 | -436,600 | Reduce 81.61% | 98,400 | $47.30 |
| Q3 2015 | +411,700 | Add 418.39% | 510,100 | $41.28 |
| Q4 2015 | -432,700 | Reduce 84.83% | 77,400 | $40.94 |
| Q1 2016 | +88,300 | Add 114.08% | 165,700 | $44.48 |
| Q2 2016 | -100,800 | Reduce 60.83% | 64,900 | $47.60 |
| Q3 2016 | -64,900 | Sold Out | 0 | $0.00 |
| Q4 2016 | +473,200 | New Buy | 473,200 | $51.96 |
| Q1 2017 | -433,500 | Reduce 91.61% | 39,700 | $56.55 |
| Q2 2017 | +368,300 | Add 927.71% | 408,000 | $57.25 |
| Q3 2017 | -89,600 | Reduce 21.96% | 318,400 | $61.55 |
| Q4 2017 | +11,200 | Add 3.52% | 329,600 | $63.28 |
| Q1 2018 | +102,700 | Add 31.16% | 432,300 | $68.73 |
| Q2 2018 | -141,900 | Reduce 32.82% | 290,400 | $65.28 |
| Q3 2018 | -153,300 | Reduce 52.79% | 137,100 | $74.44 |
| Q4 2018 | -137,100 | Sold Out | 0 | $0.00 |
| Q1 2019 | +367,400 | New Buy | 367,400 | $78.10 |
| Q2 2019 | -130,700 | Reduce 35.57% | 236,700 | $87.59 |
| Q3 2019 | -94,400 | Reduce 39.88% | 142,300 | $89.57 |
| Q4 2019 | -54,500 | Reduce 38.30% | 87,800 | $95.23 |
| Q1 2020 | +7,600 | Add 8.66% | 95,400 | $81.51 |
| Q2 2020 | +88,700 | Add 92.98% | 184,100 | $97.49 |
| Q3 2020 | +200 | Add 0.11% | 184,300 | $105.58 |
| Q4 2020 | -184,300 | Sold Out | 0 | $0.00 |
| Q2 2021 | +316,290 | New Buy | 316,290 | $140.08 |
| Q3 2021 | +412,710 | Add 130.48% | 729,000 | $148.65 |
| Q4 2021 | -455,900 | Reduce 62.54% | 273,100 | $169.67 |
| Q1 2022 | +1,900 | Add 0.70% | 275,000 | $174.60 |
| Q2 2022 | -149,800 | Reduce 54.47% | 125,200 | $163.04 |
| Q3 2022 | -125,200 | Sold Out | 0 | $0.00 |
| Q2 2023 | +20,800 | New Buy | 20,800 | $0.22 |
| Q3 2023 | -20,800 | Sold Out | 0 | $0.00 |
| Q1 2024 | +76,400 | New Buy | 76,400 | $250.04 |
| Q2 2024 | -76,400 | Sold Out | 0 | $0.00 |
| Q3 2024 | +90,700 | New Buy | 90,700 | $281.37 |
| Q4 2024 | +82,500 | Add 90.96% | 173,200 | $283.85 |
| Q1 2025 | +145,800 | Add 84.18% | 319,000 | $345.24 |
| Q2 2025 | +30,600 | Add 9.59% | 349,600 | $320.12 |
| Q3 2025 | +50,900 | Add 14.56% | 400,500 | $309.74 |
| Q4 2025 | -396,180 | Reduce 98.92% | 4,320 | $258.79 |
Renaissance Technologies's Arthur J Gallagher & Co Investment FAQs
Renaissance Technologies first purchased Arthur J. Gallagher & Co. (AJG) in Q2 2013, acquiring 301,400 shares, as reported in their 13F filing for that period. Note: Analysis reflects filings available since Q2 2013; earlier records may be incomplete.
Renaissance Technologies has held Arthur J. Gallagher & Co. (AJG) for 47 quarters since Q2 2013.
Renaissance Technologies's largest addition to Arthur J. Gallagher & Co. (AJG) was in Q4 2014, adding 700,000 shares worth $32.96 M.
According to the latest 13F filing for Q4 2025, Renaissance Technologies's firm, Renaissance Technologies LLC, owns 4,320 shares of Arthur J. Gallagher & Co. (AJG), valued at approximately $1.12 M.
As of the Q4 2025 filing, Arthur J. Gallagher & Co. (AJG) represents approximately 0.00% of Renaissance Technologies's publicly disclosed stock portfolio, making it one of their key holdings.
Renaissance Technologies's peak holding in Arthur J. Gallagher & Co. (AJG) was 729,000 shares, as reported at the end of Q3 2021.