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Spero Therapeutics
SPRO

37 hedge funds and large institutions have $91.2M invested in Spero Therapeutics in 2017 Q4 according to their latest regulatory filings, with 37 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

53.99% more ownership

Funds ownership: 0% → 53.99% (+54%)

Holders
37
Holders Change
+37
Holders Change %
–
% of All Funds
0.84%
Holding in Top 10
2
Holding in Top 10 Change
+2
Holding in Top 10 Change %
% of All Funds
0.05%
New
37
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
AVAI
Atlas Venture Associates IX
Massachusetts
+$16.9M
2
RCM
RA Capital Management
Massachusetts
+$15M
3
AI
Alphabet Inc
California
+$13.7M
4
BI
BVF Inc
California
+$12.6M
5
Fidelity Investments
Fidelity Investments
Massachusetts
+$9.82M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
AVAI
1
Atlas Venture Associates IX
Massachusetts
$16.2M +$16.9M +1,376,968 New
RCM
2
RA Capital Management
Massachusetts
$14.4M +$15M +1,225,647 New
AI
3
Alphabet Inc
California
$13.1M +$13.7M +1,112,473 New
BI
4
BVF Inc
California
$12.1M +$12.6M +1,029,185 New
Fidelity Investments
5
Fidelity Investments
Massachusetts
$9.4M +$9.82M +800,000 New
RSCM
6
Rock Springs Capital Management
Maryland
$6.17M +$6.44M +525,000 New
VMI
7
VHCP Management II
New York
$5.71M +$5.96M +485,615 New
AG
8
Artal Group
Luxembourg
$4.11M +$4.3M +350,000 New
AIC
9
AWM Investment Company
New York
$4.11M +$4.3M +350,000 New
BlackRock
10
BlackRock
New York
$2.83M +$2.96M +240,874 New
Northern Trust
11
Northern Trust
Illinois
$765K +$799K +65,125 New
Vanguard Group
12
Vanguard Group
Pennsylvania
$534K +$558K +45,489 New
ECM
13
Endurant Capital Management
California
$365K +$382K +31,100 New
California Public Employees Retirement System
14
California Public Employees Retirement System
California
$294K +$307K +25,000 New
LCM
15
Laurion Capital Management
New York
$170K +$178K +14,500 New
Deutsche Bank
16
Deutsche Bank
Germany
$155K +$163K +13,293 New
Morgan Stanley
17
Morgan Stanley
New York
$124K +$130K +10,553 New
DIM
18
DC Investments Management
Virginia
$118K +$123K +10,039 New
California State Teachers Retirement System (CalSTRS)
19
California State Teachers Retirement System (CalSTRS)
California
$112K +$117K +9,511 New
TCIM
20
TIAA CREF Investment Management
New York
$103K +$108K +8,806 New
TA
21
Teachers Advisors
New York
$81K +$85.1K +6,931 New
DCM
22
DAFNA Capital Management
California
$59K +$61.4K +5,000 New
AIG
23
American International Group
New York
$48K +$49.9K +4,063 New
TRCT
24
Tower Research Capital (TRC)
New York
$24K +$25.6K +2,089 New
SO
25
STRS Ohio
Ohio
$19K +$20.9K +1,700 New
1
2

SPRO Hedge Fund Activity: Q4 2017 in Review

37 of the 4,409 institutional investors tracked by Wall St. Rank reported a position in Spero Therapeutics (SPRO) for Q4 2017, worth a combined $91.2M.

Buyers outnumbered sellers: 37 funds opened new SPRO positions and 0 closed out — a net gain of 37 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Atlas Venture Associates IX, opening a new position worth an estimated $16.9M.

  • 37 institutional investors held Spero Therapeutics (SPRO) as of Q4 2017, up from 0 in Q3 2017.
  • Funds reported $91.2M of Spero Therapeutics stock for Q4 2017.
  • 37 funds opened new Spero Therapeutics positions in Q4 2017 and 0 closed out, a net change of +37 holders.
  • The largest Spero Therapeutics buyer in Q4 2017 was Atlas Venture Associates IX, an estimated $16.9M added.

Based on aggregated 13F filings for Q4 2017.