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ATYR

aTyr Pharma
ATYR

110 hedge funds and large institutions have $336M invested in aTyr Pharma in 2025 Q2 according to their latest regulatory filings, with 52 funds opening new positions, 25 increasing their positions, 24 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

80% more capital invested

Capital invested by funds: $187M → $336M (+$150M)

79% more first-time investments, than exits

New positions opened: 52 | Existing positions closed: 29

54% more call options, than puts

Call options by funds: $5.88M | Put options by funds: $3.81M

26% more funds holding

Funds holding: 87 → 110 (+23)

5.06% more ownership

Funds ownership: 69.5% → 74.56% (+5.1%)

4% more repeat investments, than reductions

Existing positions increased: 25 | Existing positions reduced: 24

Holders
110
Holders Change
+23
Holders Change %
+26.44%
% of All Funds
1.45%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
% of All Funds
0.03%
New
52
Increased
25
Reduced
24
Closed
29
Calls
$5.88M
Puts
$3.81M
Net Calls
+$2.07M
Net Calls Change
+$3.61M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$16.5M
2
Geode Capital Management
Geode Capital Management
Massachusetts
+$4.6M
3
State Street
State Street
Massachusetts
+$3.43M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$2.55M
5
Invesco
Invesco
Georgia
+$2.35M

Top Sellers

Rank Fund Capital Flow
1
Point72 Asset Management
Point72 Asset Management
Connecticut
-$7.3M
2
Susquehanna International Group
Susquehanna International Group
Pennsylvania
-$5.82M
3
ABG
Ally Bridge Group
New York
-$1.93M
4
Goldman Sachs
Goldman Sachs
New York
-$1.36M
5
Marshall Wace
Marshall Wace
United Kingdom
-$1.29M
Name Holding Trade Value Shares
Change 		Change in
Stake
T. Rowe Price Associates
51
T. Rowe Price Associates
Maryland
$221K +$171K +43,525 New
Bank of America
52
Bank of America
North Carolina
$215K -$968K -245,965 -85%
FLPIM
53
F.L. Putnam Investment Management
Massachusetts
$211K +$164K +41,558 New
JP Morgan Chase
54
JP Morgan Chase
New York
$208K +$162K +41,107 New
PAMP
55
Polar Asset Management Partners
Ontario, Canada
$205K +$159K +40,500 New
DC
56
Diametric Capital
Massachusetts
$188K +$146K +37,012 New
Jane Street
57
Jane Street
New York
$185K -$543K -138,084 -79%
Goldman Sachs
58
Goldman Sachs
New York
$184K -$1.36M -346,042 -91%
KWA
59
Kingswood Wealth Advisors
California
$183K -$3.93K -1,000 -3%
Citigroup
60
Citigroup
New York
$169K +$131K +33,332 +3,333,200%
Manulife (Manufacturers Life Insurance)
61
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$165K +$128K +32,477 New
VF
62
Virtu Financial
New York
$162K +$126K +31,959 New
OAC
63
OMERS Administration Corp
Ontario, Canada
$161K -$458K -116,300 -79%
DADC
64
D.A. Davidson & Co
Montana
$160K -$33.6K -8,550 -21%
Two Sigma Investments
65
Two Sigma Investments
New York
$159K +$35.8K +9,089 +41%
New York State Common Retirement Fund
66
New York State Common Retirement Fund
New York
$139K +$108K +27,500 New
LPL Financial
67
LPL Financial
California
$134K +$104K +26,335 New
HSBC Holdings
68
HSBC Holdings
United Kingdom
$128K +$96.7K +24,584 New
Raymond James Financial
69
Raymond James Financial
Florida
$126K +$43.2K +10,989 +79%
VOYA Investment Management
70
VOYA Investment Management
Georgia
$125K +$96.8K +24,612 New
AI
71
Atom Investors
Texas
$110K +$85.7K +21,790 New
KCM
72
Kennedy Capital Management
Missouri
$109K +$84.6K +21,514 New
AWM
73
Apollon Wealth Management
South Carolina
$104K -$11.8K -3,000 -13%
BRWM
74
Blue Rock Wealth Management
North Carolina
$101K +$78.7K +20,000 New
Focus Partners Wealth
75
Focus Partners Wealth
Massachusetts
$101K +$78.7K +20,000 New
1 2
3
4 5

ATYR Hedge Fund Activity: Q2 2025 in Review

110 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in aTyr Pharma (ATYR) for Q2 2025, worth a combined $336M — up 80% from $187M a quarter earlier.

Buyers outnumbered sellers: 52 funds opened new ATYR positions and 29 closed out — a net gain of 23 holders — while 25 added to existing stakes and 24 trimmed.

The largest buyer was BlackRock, adding an estimated $16.5M. The largest seller was Point72 Asset Management, cutting an estimated $7.3M.

  • 110 institutional investors held aTyr Pharma (ATYR) as of Q2 2025, up from 87 in Q1 2025.
  • Funds reported $336M of aTyr Pharma stock for Q2 2025, up 80% quarter-over-quarter.
  • 52 funds opened new aTyr Pharma positions in Q2 2025 and 29 closed out, a net change of +23 holders.
  • The largest aTyr Pharma buyer in Q2 2025 was BlackRock, an estimated $16.5M added.
  • The largest aTyr Pharma seller in Q2 2025 was Point72 Asset Management, an estimated $7.3M sold.

Based on aggregated 13F filings for Q2 2025.